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Re: Value of X-air standard

 

开云体育

Need many more details. ? ?Condition of fabric, ?engine time and type, flight history, maintenance history, etc. ? ??

Geoff Gartshore
Zenith CH200 GCUD
Waterloo, Ontario?

On Jul 6, 2022, at 4:50 AM, Rol <rol@...> wrote:

?


Greetings!

I have located a "barn find" X-air standard built in the mid 2010's.

It is out of registration and hasn't flown in several years.? It is quite dirty but has been kept in a hangar that does not have a main door.

It doesn't look too bad but would probably take a fair amount of inspection and lots of maintenance to put in flying condition and get registered.

Could some of you chime in with what you think this might be worth and what to look out for?

I am a member of EAA, AOPA, and the Recreational Aviation Foundation and served as an AOPA rep for quite a few years.

Thanks in advance for any advice you can provide.

Rol

?

?


Value of X-air standard

 


Greetings!

I have located a "barn find" X-air standard built in the mid 2010's.

It is out of registration and hasn't flown in several years.? It is quite dirty but has been kept in a hangar that does not have a main door.

It doesn't look too bad but would probably take a fair amount of inspection and lots of maintenance to put in flying condition and get registered.

Could some of you chime in with what you think this might be worth and what to look out for?

I am a member of EAA, AOPA, and the Recreational Aviation Foundation and served as an AOPA rep for quite a few years.

Thanks in advance for any advice you can provide.

Rol

?

?


Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

开云体育

Should read 'their website', typo?


On 9 May 2022, at 14:46, Justin Gregoris <jgregoris789@...> wrote:

thanks!

From: [email protected] <[email protected]> on behalf of Ian Wilson <ianwilson2@...>
Sent: May 8, 2022 3:50 AM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel
?
If all you’re looking for is a backup/check instrument, have a look at , maybe they have something you could use?

Ian





Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

开云体育

Hi
Give ? Parts4Aircraft ?a look up there website has small instruments, the a/c featured on the webpage is a Jab which is/was his own and he supplies engine instruments for all popular engines.
I have dealt with him and he is very helpfull


On 9 May 2022, at 14:46, Justin Gregoris <jgregoris789@...> wrote:

thanks!

From: [email protected] <[email protected]> on behalf of Ian Wilson <ianwilson2@...>
Sent: May 8, 2022 3:50 AM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel
?
If all you’re looking for is a backup/check instrument, have a look at , maybe they have something you could use?

Ian





Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

开云体育

thanks!


From: [email protected] <[email protected]> on behalf of Ian Wilson <ianwilson2@...>
Sent: May 8, 2022 3:50 AM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel
?
If all you’re looking for is a backup/check instrument, have a look at tinytach.com, maybe they have something you could use?

Ian





Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

If all you’re looking for is a backup/check instrument, have a look at tinytach.com, maybe they have something you could use?

Ian


Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

开云体育

Ok I understand this but regardless, is someone able to provide tacho sender unit info/make/model/specs/website link ?
From: [email protected] <[email protected]> on behalf of Brian Ellis via groups.io <bellis2uk@...>
Sent: Saturday, May 7, 2022 5:38:58 AM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel
?
In the uk the Rotax is the favoured option in all cases?


On 7 May 2022, at 02:07, Michael Coates <mcoates@...> wrote:

? STOL and Jabiru just dont go together as it takes to long to wind up the power...? If you want STOL then you need to go Rotax, the difference is substantial running through the gearbox


Justin Gregoris wrote on 6/05/2022 11:31 pm:
I have been trying for the life of me find a tacho sending unit and how to wire it up. The reason i want to add an additional analog gauge inside the cabin is because very now and then i dont trust me digital computer unit that gives me the RPM reading. I want to install a 2.5 inch diameter gauge to see if there is any difference from digital to analog read-outs.

does anyone who where i can purchase the tacho sender unit; make and model and size/length of thread and diameter of sender unit?

I am assuming the additional sending unit I am looking for has 2 wires coming from it - one wire that will connect to any positive 12v wire, while the other wire gets fixed/grounded to a negative terminal or ground? or does the other wire get attached to some other part of a circuit?

I tried to look on Amazon but i can only find big tacho sending units; for example, they are 1/2 inch diameter and 3 inches long - way too big.

My ground adjustable Sensenich propeller is super sensitive anytime I try and adjust the pitch of the blades, the RPM's (during a static run-up test thereafter) seems to move +/- 200-300 RPM difference - then on top of all that, my static test run-up will (for example) indicate a max RPM reading of 3200RPMs, but then when/once I apply full power during real-time takeoff, the RPMs give me a different reading (usually another 100-300RPM) higher than my static ground test. Lastly, the RPM readings seems to change while I am either flying by myself or when a 210lb passenger is flying with me.

My goal is to have max 3300RPM, for finer pitch setting; ultimately yiedling faster climb-out. I am not looking for faster top speed but rather STOL capabilities on grass airstrip my X Air is based out of.

Any guidance regarding the above make/model and installation is greatly appreciated.

Thank you kindly,

Justin?

-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

开云体育

In the uk the Rotax is the favoured option in all cases?


On 7 May 2022, at 02:07, Michael Coates <mcoates@...> wrote:

? STOL and Jabiru just dont go together as it takes to long to wind up the power...? If you want STOL then you need to go Rotax, the difference is substantial running through the gearbox


Justin Gregoris wrote on 6/05/2022 11:31 pm:
I have been trying for the life of me find a tacho sending unit and how to wire it up. The reason i want to add an additional analog gauge inside the cabin is because very now and then i dont trust me digital computer unit that gives me the RPM reading. I want to install a 2.5 inch diameter gauge to see if there is any difference from digital to analog read-outs.

does anyone who where i can purchase the tacho sender unit; make and model and size/length of thread and diameter of sender unit?

I am assuming the additional sending unit I am looking for has 2 wires coming from it - one wire that will connect to any positive 12v wire, while the other wire gets fixed/grounded to a negative terminal or ground? or does the other wire get attached to some other part of a circuit?

I tried to look on Amazon but i can only find big tacho sending units; for example, they are 1/2 inch diameter and 3 inches long - way too big.

My ground adjustable Sensenich propeller is super sensitive anytime I try and adjust the pitch of the blades, the RPM's (during a static run-up test thereafter) seems to move +/- 200-300 RPM difference - then on top of all that, my static test run-up will (for example) indicate a max RPM reading of 3200RPMs, but then when/once I apply full power during real-time takeoff, the RPMs give me a different reading (usually another 100-300RPM) higher than my static ground test. Lastly, the RPM readings seems to change while I am either flying by myself or when a 210lb passenger is flying with me.

My goal is to have max 3300RPM, for finer pitch setting; ultimately yiedling faster climb-out. I am not looking for faster top speed but rather STOL capabilities on grass airstrip my X Air is based out of.

Any guidance regarding the above make/model and installation is greatly appreciated.

Thank you kindly,

Justin?

-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Re: X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

开云体育

STOL and Jabiru just dont go together as it takes to long to wind up the power...? If you want STOL then you need to go Rotax, the difference is substantial running through the gearbox


Justin Gregoris wrote on 6/05/2022 11:31 pm:
I have been trying for the life of me find a tacho sending unit and how to wire it up. The reason i want to add an additional analog gauge inside the cabin is because very now and then i dont trust me digital computer unit that gives me the RPM reading. I want to install a 2.5 inch diameter gauge to see if there is any difference from digital to analog read-outs.

does anyone who where i can purchase the tacho sender unit; make and model and size/length of thread and diameter of sender unit?

I am assuming the additional sending unit I am looking for has 2 wires coming from it - one wire that will connect to any positive 12v wire, while the other wire gets fixed/grounded to a negative terminal or ground? or does the other wire get attached to some other part of a circuit?

I tried to look on Amazon but i can only find big tacho sending units; for example, they are 1/2 inch diameter and 3 inches long - way too big.

My ground adjustable Sensenich propeller is super sensitive anytime I try and adjust the pitch of the blades, the RPM's (during a static run-up test thereafter) seems to move +/- 200-300 RPM difference - then on top of all that, my static test run-up will (for example) indicate a max RPM reading of 3200RPMs, but then when/once I apply full power during real-time takeoff, the RPMs give me a different reading (usually another 100-300RPM) higher than my static ground test. Lastly, the RPM readings seems to change while I am either flying by myself or when a 210lb passenger is flying with me.

My goal is to have max 3300RPM, for finer pitch setting; ultimately yiedling faster climb-out. I am not looking for faster top speed but rather STOL capabilities on grass airstrip my X Air is based out of.

Any guidance regarding the above make/model and installation is greatly appreciated.

Thank you kindly,

Justin?

-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


X Air Hawk/Hanuman additional tachometer sending unit make and model attached close to the flywheel

 

I have been trying for the life of me find a tacho sending unit and how to wire it up. The reason i want to add an additional analog gauge inside the cabin is because very now and then i dont trust me digital computer unit that gives me the RPM reading. I want to install a 2.5 inch diameter gauge to see if there is any difference from digital to analog read-outs.

does anyone who where i can purchase the tacho sender unit; make and model and size/length of thread and diameter of sender unit?

I am assuming the additional sending unit I am looking for has 2 wires coming from it - one wire that will connect to any positive 12v wire, while the other wire gets fixed/grounded to a negative terminal or ground? or does the other wire get attached to some other part of a circuit?

I tried to look on Amazon but i can only find big tacho sending units; for example, they are 1/2 inch diameter and 3 inches long - way too big.

My ground adjustable Sensenich propeller is super sensitive anytime I try and adjust the pitch of the blades, the RPM's (during a static run-up test thereafter) seems to move +/- 200-300 RPM difference - then on top of all that, my static test run-up will (for example) indicate a max RPM reading of 3200RPMs, but then when/once I apply full power during real-time takeoff, the RPMs give me a different reading (usually another 100-300RPM) higher than my static ground test. Lastly, the RPM readings seems to change while I am either flying by myself or when a 210lb passenger is flying with me.

My goal is to have max 3300RPM, for finer pitch setting; ultimately yiedling faster climb-out. I am not looking for faster top speed but rather STOL capabilities on grass airstrip my X Air is based out of.

Any guidance regarding the above make/model and installation is greatly appreciated.

Thank you kindly,

Justin?


Re: Spark plug NGK for Jabiru

 

I have used both the Denso 5373 IX27 and NGK 4772 DR9EIX Iridium plugs on my 2200 without any problem. The Iridium plugs give a much better spark and really help starting - imho!


Ian


Re: Spark plug NGK for Jabiru

 

开云体育

For the same reason, all Rotax engines used to be labelled as “not to be used in aircraft”, or words to that effect.
Mo Davies.

On 5 May 2022, at 23:45, Michael Coates <mcoates@...> wrote:

? I will be just legal issues, they don't want to get involved in an aircraft accident where the spark plugs may be at fault I am guessing

Bernhard Svavarsson wrote on 6/05/2022 7:18 am:
Little bit dilemma here. The Jabiru manual recommends using NGK spark plug for the engine but NGK says that NGK should NOY be used on aircraft engines. Is this due to legal or secuity reasons or both?






-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Re: Spark plug NGK for Jabiru

 

开云体育

They are just CYA ing. Not to provide spark plugs for aircraft.

On May 5, 2022, at 6:16 PM, Justin Gregoris <jgregoris789@...> wrote:

? I just replaced all my spark plugs to the same NGK d9ea and they work great. Some other pilots told me to get a spark plug with R rating due to the fact that it has a resistor to potentially keep radio feedback down but I could not find any locally and I did not want to deviate from the recommended make and model of what is required
From: [email protected] <[email protected]> on behalf of Michael Coates <mcoates@...>
Sent: Thursday, May 5, 2022 6:45:20 PM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] Spark plug NGK for Jabiru
?
I will be just legal issues, they don't want to get involved in an aircraft accident where the spark plugs may be at fault I am guessing

Bernhard Svavarsson wrote on 6/05/2022 7:18 am:
Little bit dilemma here. The Jabiru manual recommends using NGK spark plug for the engine but NGK says that NGK should NOY be used on aircraft engines. Is this due to legal or secuity reasons or both?






-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Re: Spark plug NGK for Jabiru

 

开云体育

I used them in my XAir for years with no issues. ? I figured if Jabiru was ok with them then that was fine. ?

Geoff Gartshore
Zenith CH200 GCUD
Waterloo, Ontario?

On May 5, 2022, at 7:15 PM, Justin Gregoris <jgregoris789@...> wrote:

? I just replaced all my spark plugs to the same NGK d9ea and they work great. Some other pilots told me to get a spark plug with R rating due to the fact that it has a resistor to potentially keep radio feedback down but I could not find any locally and I did not want to deviate from the recommended make and model of what is required
From: [email protected] <[email protected]> on behalf of Michael Coates <mcoates@...>
Sent: Thursday, May 5, 2022 6:45:20 PM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] Spark plug NGK for Jabiru
?
I will be just legal issues, they don't want to get involved in an aircraft accident where the spark plugs may be at fault I am guessing

Bernhard Svavarsson wrote on 6/05/2022 7:18 am:
Little bit dilemma here. The Jabiru manual recommends using NGK spark plug for the engine but NGK says that NGK should NOY be used on aircraft engines. Is this due to legal or secuity reasons or both?






-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Re: Spark plug NGK for Jabiru

 

开云体育

I just replaced all my spark plugs to the same NGK d9ea and they work great. Some other pilots told me to get a spark plug with R rating due to the fact that it has a resistor to potentially keep radio feedback down but I could not find any locally and I did not want to deviate from the recommended make and model of what is required
From: [email protected] <[email protected]> on behalf of Michael Coates <mcoates@...>
Sent: Thursday, May 5, 2022 6:45:20 PM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] Spark plug NGK for Jabiru
?
I will be just legal issues, they don't want to get involved in an aircraft accident where the spark plugs may be at fault I am guessing

Bernhard Svavarsson wrote on 6/05/2022 7:18 am:
Little bit dilemma here. The Jabiru manual recommends using NGK spark plug for the engine but NGK says that NGK should NOY be used on aircraft engines. Is this due to legal or secuity reasons or both?






-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Re: Spark plug NGK for Jabiru

 

开云体育

I will be just legal issues, they don't want to get involved in an aircraft accident where the spark plugs may be at fault I am guessing

Bernhard Svavarsson wrote on 6/05/2022 7:18 am:
Little bit dilemma here. The Jabiru manual recommends using NGK spark plug for the engine but NGK says that NGK should NOY be used on aircraft engines. Is this due to legal or secuity reasons or both?






-- 
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

mailto:mcoates@...

skype name:   xcomavionics

Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.

"Amateurs practice till they get it right;
Professionals practice till they can’t get it wrong."


Spark plug NGK for Jabiru

 

Little bit dilemma here. The Jabiru manual recommends using NGK spark plug for the engine but NGK says that NGK should NOY be used on aircraft engines. Is this due to legal or secuity reasons or both?


Re: X Air Hanuman: engine-out

 

开云体育

This is great to hear Justin!

Get


From: [email protected] <[email protected]> on behalf of Justin Gregoris <jgregoris789@...>
Sent: Tuesday, May 3, 2022 11:36:28 AM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] X Air Hanuman: engine-out
?
...Thought i'd share my experience that I went through today with everyone:

After the mishap (first flight of the year; electrical and mechanical issues) a few days ago, I didn't sleep much, but rather spent the time researching and researching some more.

I still can't fully understand what exactly happened, but today was relieving and exhilarating- 11 take-offs and landings with no issues whatsoever. I removed the new 2lb "intelligent" battery and re-installed the old 16lb battery. I also turned the idle set screw back to its position prior to the Rotax mechanic servicing my Jabiru/Bing carb.

After lots of speculating, here is what I think happened with my electrical circuit breakers tripping both 3A transponder and 15A master: the new battery only puts out 6 amp hours of current, plus it has some 'intelligent' circuitry installed within it, whereby reacting a lot faster to over/under voltage, over/under current, and other situations that may impact both series and parallel circuits within the system. I think it was being too sensitive, plus not enough amp hours, like the old 16 amp hour, 16lb AGM battery. Another potential culprit (although quite rare) may have also contributed to the high frequency sound in my headset as soon as i left ground/earth: I was using a large 4'x4' microfiber towel to clean all the dust off the plane since it is barn hangered throughout the winter. Anytime I use a microfiber towel, the hairs on my arms and hands stand up, so I couldnt only imagine how it may have reactyed to my plane leaving earth/ground reference. I know it may sound farfetched, but you never know; static imoacts electronics more than some may think.

When dealing with my engine shutting off without notice as soon as I touched the ground was not because of an air pocket but rather from the instantaneous impact of landing and its effect on the idle level on the carb. Although I did a static test after lowering the RPM, the Rotax dealer said he has seen time and time again; an even-lower RPM drop after the carb has been subjected to not only a fine-tune adjustment, but also impact/vibration. That is what I believed casued my engine to quit as soon as my wheels 'bounced' off the ground from the first landing of the year / in 5 months of no-flying.

Needless to say, this is a lesson for me. I thought I was saving significant weight with a lithium ion battery, with the inclusion of an extra 150+CCA. I did not however, pay attention to the amp-hour rating as well as any other features a different battery may have from the original battery.

The flight today was a blast and everything was running as it should.

I even swtiched from 100LL to Shell V Power 91 and it runs cleaner, after inspecting the valves; I can notice the lead/carbon residue being disturbed and eventually burned, which is another relief.

The propeller spinner nose cone even reduced the CHT by about 3-4 degrees celcius, which I was also glad to see.


Re: X Air Hanuman: engine-out

 

...Thought i'd share my experience that I went through today with everyone:

After the mishap (first flight of the year; electrical and mechanical issues) a few days ago, I didn't sleep much, but rather spent the time researching and researching some more.

I still can't fully understand what exactly happened, but today was relieving and exhilarating- 11 take-offs and landings with no issues whatsoever. I removed the new 2lb "intelligent" battery and re-installed the old 16lb battery. I also turned the idle set screw back to its position prior to the Rotax mechanic servicing my Jabiru/Bing carb.

After lots of speculating, here is what I think happened with my electrical circuit breakers tripping both 3A transponder and 15A master: the new battery only puts out 6 amp hours of current, plus it has some 'intelligent' circuitry installed within it, whereby reacting a lot faster to over/under voltage, over/under current, and other situations that may impact both series and parallel circuits within the system. I think it was being too sensitive, plus not enough amp hours, like the old 16 amp hour, 16lb AGM battery. Another potential culprit (although quite rare) may have also contributed to the high frequency sound in my headset as soon as i left ground/earth: I was using a large 4'x4' microfiber towel to clean all the dust off the plane since it is barn hangered throughout the winter. Anytime I use a microfiber towel, the hairs on my arms and hands stand up, so I couldnt only imagine how it may have reactyed to my plane leaving earth/ground reference. I know it may sound farfetched, but you never know; static imoacts electronics more than some may think.

When dealing with my engine shutting off without notice as soon as I touched the ground was not because of an air pocket but rather from the instantaneous impact of landing and its effect on the idle level on the carb. Although I did a static test after lowering the RPM, the Rotax dealer said he has seen time and time again; an even-lower RPM drop after the carb has been subjected to not only a fine-tune adjustment, but also impact/vibration. That is what I believed casued my engine to quit as soon as my wheels 'bounced' off the ground from the first landing of the year / in 5 months of no-flying.

Needless to say, this is a lesson for me. I thought I was saving significant weight with a lithium ion battery, with the inclusion of an extra 150+CCA. I did not however, pay attention to the amp-hour rating as well as any other features a different battery may have from the original battery.

The flight today was a blast and everything was running as it should.

I even swtiched from 100LL to Shell V Power 91 and it runs cleaner, after inspecting the valves; I can notice the lead/carbon residue being disturbed and eventually burned, which is another relief.

The propeller spinner nose cone even reduced the CHT by about 3-4 degrees celcius, which I was also glad to see.


Re: X Air Hanuman: engine-out

 

开云体育

Could the transponder 3amp circuit breaker tripping and then my master 15amp circuit breaker tripping be due to a different battery than what my X Air had?

Previous battery: Odyssey PC680:
Specifications
Pulse (5-second) Hot Cranking Amps (PHCA): 520
Cold Cranking Amps (CCA): 170
20Hr Nominal Capacity (Ah): 16
Reserve Capacity Minutes: 24
Dimensions L x W x H (in): 7.15 x 3.00 x 6.65
Weight (lbs): 15.4

New battery: aerovoltz AI Series 360CCA:

Negative Terminal Location: DUAL
Weight: (2.6 lbs.)
Voltage (Charged): 13.6V
Lead Acid Equivalent Amperage: 6.9 A/H @ 10 A/H Rating
Pulse Cranking Amps: 360amps
Operating Environment: -18°C (0°F) to 60°C (140°F)

I purchased this new battery because how light it is and it says it's good for the Jabiru right on their website.

The only major difference between the old battery and this new one is amp hours from 16AH to 6.1AH.

Could that have caused the main 15amp breaker to trip?


From: [email protected] <[email protected]> on behalf of Brian Ellis via groups.io <bellis2uk@...>
Sent: Sunday, May 1, 2022 5:53:47 AM
To: [email protected] <[email protected]>
Subject: Re: [XAIR] X Air Hanuman: engine-out
?
Get a 912 and in my opinion save yourself a lot of trouble


On 1 May 2022, at 10:36, Mo Davies via groups.io <modavies@...> wrote:

?
Many years ago, we had a series of engine stoppages with an early Jab.? We tried all manner of tricks to prevent carb icing, and I used to climb up to several thousand feet, throttle back and decend to see if we had affected a cure after every modification.? The engine only ever stopped on me? in the circuit, never during these tests!? Frequently stopping on the "final glide".? I got to the state where I refused to go around, no matter how bad the landing, as opening the throttle would cause the engine to splutter and die every time.
The final cure was to fit small electric heaters onto the body of the Carb.? I would switch them on before every descent and switch them off for normal flight and this cured the problem for me.? The sump oil carb heat did not work adequately in the UK climate whilst descending.
Another pilot said, subsequent to his accident, that he left the heater turned off "to save the battery" he restarted the engine three times in the circuit after it had stopped, but still failed to turn on the heater. (This same mentality causes drivers to drive on parking lights when in their cars, which makes them virtually invisible after dark.) ? The final stoppage was too low to affect a restart and the crash wrote of the aircraft.
The problem with the carb was finally cured with electric carb heat, but there is no cure for stupidity!
Cheers,
Mo Davies.
.? Justin Gregoris wrote:
Good afternoon Gents

Background: Jabiru 2200 Bing carburetor was fully serviced for the first time in 14 years by Rotax dealer; also who was my flight instructor who taught me how to fly.

Since the carburetor was off, I decided to route new fuel lines since I did not have a bypass line with a one-way check valve. I also replaced my fuel pump with a brand new fuel pump with a built-in check valve.

Yesterday, I put fresh fuel in and started up the motor for about 10 or 12 minutes and then did a static run test. I went full power for about 10 seconds and then slam their throttle right down to idle to see if it would stall. It did not install. I did this multiple times on the ground.

Today, I fired up the engine and warmed it up as usual and then did a static run before my first flight of the year. I was flying with a pilot that has 48 years of flying experience in over 30 aircraft.

The takeoff went great but then the master breaker popped as well as my 3 amp transponder breaker also popping. I don't know why this happened as it never happened before but I pushed back in the master breaker and we continue flying without any issues.

As we were approaching to land my airplane everything was going well. I was coming in a little too fast so as soon as I was over the runway I moved the throttle right back to idle position at which point I flared too early and the airplane ballooned a little bit but nothing crazy. When a lightly kissed the ground and the nose went up the engine all of a sudden installed and the propeller stopped turning. Luckily at that point I was able to land without any hard effects but both of us were extremely shocked the engine stalled. Thank goodness it was literally right at the end. It easily fired back up and then I did another static run and slammed it back to idle and it did not stop.

I am scratching my head as to why it's stalled. It has never ever done this before. I forgot to use electric boost pump when I was landing which may have helped the issue not even happen? Perhaps it was an air bubble or air pocket that was trapped in the brand new fuel line?

I do not have any fuel leaks right now or smell any fuel and all my brand new lines are bone dry.

I think it is coincidental that the master breaker and the transponder breaker popping has nothing to do with the engine stopping. But that has never happened to me either.

yesterday I noticed my engine idling at about 12:00 or 1300 RPM so this morning I took out my 7 mm wrench to try and lower the idle stop screw at which point it did and now it idles at about 1,000 RPM.

Any guidance as to the culprits of the engine stopping is greatly appreciated as I intend to fly in 2 days from now and do not want this to happen again. Thank you
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