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:
[email protected]
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:
[email protected] <[email protected]>
on behalf of Steve Rance via groups.io
<steve-r@...>
Sent: November 20, 2021 9:36 AM
To:
[email protected] <[email protected]>
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:
[email protected] <[email protected]>
on behalf of Steve Rance via groups.io
<steve-r@...>
Sent: Saturday, November 20, 2021 6:40:42 AM
To:
[email protected] <[email protected]>
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
