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
