Hi
Buy the original bungee from factory or dealer.I
bought mine from Randkar the main dealer of xair
aircraft in Eirope. I use strap between wheels to pull
the wheels together - thigten the strap by lifting one
wheel at time. This procedure is two mens job.
----- Upprunalegt skeyti -----
Frá: Justin Gregoris
<jgregoris789@...>
Til:
XAIR@groups.io
Sent: Sat, 20 Nov 2021 14:45:08 -0000 (GMT)
Efni: Re: [XAIR] X Air Hanuman bungee cord rear
landing gear and sail cloth
many thanks.
I will look for 10mm total diameter bungee cords at
about 5 feet long - giving a total of 4 pieces at 5
feet long each and 10mm diameter chord.
Justin
________________________________
From:
XAIR@groups.io
<XAIR@groups.io>
on behalf of Steve Rance via groups.io
<steve-r@...>
Sent: November 20, 2021 9:36 AM
To:
XAIR@groups.io
<XAIR@groups.io>
Subject: Re: [XAIR] X Air Hanuman bungee cord rear
landing gear and sail cloth
Yes weight has to? be off wheels otherwise you cannot
get enough stretch to do the the turns, you have to
have a half turn so you end up with loop each end, I
was referring to 4.5 half turns, I may be wrong each
turn elastic is stretched to almost max so a helper
would be good. Another problem is tracking. If you
have toe out, by pulling aircraft straight on surface
watch if wheels start to splay out. May be a sigh of
bent axles. I have seen several examples. Sides of
wheel should be at right angles to ground. Tracking
can also be checked using two long beams and tape
measure.
On 20 Nov 2021 12:38, Justin Gregoris
<jgregoris789@...> wrote:
Many thanks Steve!
My recently purchased X Air Hanuman/Hawk is 2009;
going on 13yrs old. It is red exterior but with only
146hrs on airframe and Jabiru 2200.
The Dacron still looks good, I'm no expert but looks
like a solid 8.5/10.
Always stored inside hangar and still is.
When I google "Dacron", I don't get much Info with
regards to specifics. I lost a piece of paper from the
original owner, with make and model of exact covering
but I thought it said not to exceed 1000hrs of direct
UV exposure.if I do the math, plus 5-10%, I have about
400/1000 UV direct UV exposure.
I heard about spraying some kind of exterior household
paint, but I think I'd need a spray gun with a fine
tip/nozzle to prevent dripping and have to calculate
how much more weight I am adding to the plane. If I
had to make.my own colour choice, it would be matte
grey or matte green, almost like an aggressive
military look on a somewhat 'cute' looking plane.
There are currently some areas on my Hanuman whereby
the covering looks like it should have been stretched
tighter, to give it a better look.
Based off the year of my covering, it is viable to try
and apply a heat gun to the covering, in efforts to
create a tighter look and feel? If so, how exactly do
I tighten this covering? What's the procedure?
Moreover, with reference to the bungee cords, you are
saying each side to be 10mm thick diameter bungee
chord by about 5 feet in length, and to achieve 4 laps
or turns around each bolt?
Do I have to use a car jack to lift the rear of the
plane in the air to allow maximum sag/stretch, and
then wrap the bungee chord as tight as I can around
the bottom and top bolt on each side, 4 wraps for each
bolt?
Thanks again,
Justin
________________________________
From:
XAIR@groups.io
<XAIR@groups.io>
on behalf of Steve Rance via groups.io
<steve-r@...>
Sent: Saturday, November 20, 2021 6:40:42 AM
To:
XAIR@groups.io
<XAIR@groups.io>
Subject: Re: [XAIR] X Air Hanuman bungee cord rear
landing gear and sail cloth
I did own a XairH called Hawk in UK. Very nice
aircraft but I considered the main undercarraige to
have poor geometry. I measured my old bungee at 1460mm
x 10mm over the loops. It needs maximan stretch (4 1/2
turns from memory) on all 4 to avoid aircraft sagging
and that can be a struggle. I tried using 12 bungee I
had to install longer bolts to accommodate the thicker
bungee. Worked OK for a while but the bolts bent under
the strain so reverted to original. I found using
original bungees they had to be so tight that they
were at their limit of elasticity.
I bought the cord from ebay but had to experiment with
length to get the best fit.
I tried some years ago a uv treatment for Dacron. I
cut 2 new blue samples and pinned them to board, left
in sunny position all summer, treated sample No. 1
every month 2nd was untreated but half masked from
sun. After 8 months the treated sample had faded same
as no. 2.
I was in France years ago and a French flying
Instructor told me his Dacron covered planes were all
sprayed with polyester paint on exposed surfaces from
new and they were left outside all season and appeared
in good condition fabric wise. No real answer other
than to keep it in hanger when not flying and you
could get 10 years use. Some colours are more prone,
blues, reds etc. Whites probably better but I have no
data.
Steve
On 20 Nov 2021 04:22, Justin Gregoris
<jgregoris789@...> wrote:
Good day everyone,
Does anyone have specifications of make and model and
size needed for each rear side of the bungee cord
landing gear as well as installation instructions they
can send me or describe to me please?
Also, what is the make and model of the sailcloth? How
many years or hours is it good for and how many hours
is it good for in direct exposure to UV sunlight?
Any uv protection sprays I can apply to it, that also
clean it? I heard Lucas Slick Mist is a great product?
Your help is greatly appreciated, as always.
Justin
