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X-Air Ultralight Aircraft Indicated airspeed problem


 

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I have never heard such rubbish. The airspeed indicator is reading 106 knots and you are only doing 85 kn. This tells me that they expect you to have the cheapest non-calibrated airspeed indicator known to man or the installation is completely wrong. The easy way is to go to an avionics technician and get a pitot and static test done to the aircraft. This will give them a certified document which they must accept

avia1or01@... [X-Air_Ultralight_Aircraft] wrote on 24/05/2018 7:40 AM:
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I have a problem with my 912 X-air F. The BMAA have kicked back my permit renewal as they say I ran the VNE test at 85kt IAS and they say I should have run it at 106 kt IAS and must repeat it.?


The reason is my POH has a calibration chart which says 85kt IAS = 85 CAS. They say this is wrong and for my aircraft the calibration card should red 85kt CAS = 106 kt IAS.?


After 4 years of flying it and comparing to GPS ground speed I thought my IAS was very accurate. The ASI is the B?uniger glass cockpict LCD display which was recently serviced and calibrated by Br?uniger themselves.


?What doe other peoples Calibration charts read , especially if there is anyone else with the Br?uniger LCD flat screen instruments.



--
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237
Slovenia +386 3041 6470

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

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Thanks for the info. Having the Pitot / ASI calibrated on the ground sounds much safer than flying at 106 knots and finding out the BMAA were wrong and my POH was right. I will make some enquiries along those lines.

In worst case scenario my plan was to keep an eye on my gps ground speed and allowing for wind, never let it go above 95kts.


 

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Get it calibrated and then your safe !

avia1or01@... [X-Air_Ultralight_Aircraft] wrote on 24/05/2018 4:51 PM:
?

Thanks for the info. Having the Pitot / ASI calibrated on the ground sounds much safer than flying at 106 knots and finding out the BMAA were wrong and my POH was right. I will make some enquiries along those lines.


In worst case scenario my plan was to keep an eye on my gps ground speed and allowing for wind, never let it go above 95kts.

--
With regards,    Michael Coates

AU +61 7 5522 0583
USA +1 213 984 1237
Slovenia +386 3041 6470

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.

"Once you have flown, you will walk the earth with your eyes turned skyward,
for there you have been, and there you long to return."