I may have sent these photos before, but they bear resending here. The
covering process with Oratex was easy and produced nice looking airfoils on
first try. After 2 seasons, no signs of delamination. Good surface prep is
important, and good temperature control (especially when there is lots of
aluminum under the fabric). It helps that the glue stays active for a long
time (after drying), even overnight, giving you a chance to place the
fabric perfectly - no race against time!
Martin
Oratex vs. Stits for covering Gulls
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rahulchoudhary73
Re: Oratex vs. Stits for covering Gulls
Hey Martin,
that RV rear axle may need attention (in the last image), if it's torsion. looks a couple decades old at least.
btw, this one of Mark's 1gull trailer looks like it has rubber bonded half axles embedded right into trailer cross beam, lowers the center of gravity by another three-four inches.
cheers, Rahul
(where i'm at, every objective thing becomes yet another product opportunity..)
that RV rear axle may need attention (in the last image), if it's torsion. looks a couple decades old at least.
btw, this one of Mark's 1gull trailer looks like it has rubber bonded half axles embedded right into trailer cross beam, lowers the center of gravity by another three-four inches.
cheers, Rahul
(where i'm at, every objective thing becomes yet another product opportunity..)
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rahulchoudhary73
Re: Oratex vs. Stits for covering Gulls
Hey Martin,
that RV rear axle may need attention (in the last image), if it's torsion. looks a couple decades old at least.
btw, this one of Mark's 1gull trailer looks like it has rubber bonded half axles embedded right into trailer cross beam, lowers the center of gravity by another three-four inches.
cheers, Rahul
(where i'm at, every objective thing becomes yet another product opportunity..)
that RV rear axle may need attention (in the last image), if it's torsion. looks a couple decades old at least.
btw, this one of Mark's 1gull trailer looks like it has rubber bonded half axles embedded right into trailer cross beam, lowers the center of gravity by another three-four inches.
cheers, Rahul
(where i'm at, every objective thing becomes yet another product opportunity..)
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zadwit
Re: Oratex vs. Stits for covering Gulls
Wow great photo! How high is it from the ground to the frame on top that holds the wing? I heard the wing is about
7.5ö thick, is this close? The reason I ask is if I put a gull in an enclosed trailer, I would need thetrailer to be high enough inside to house the fuselage with the wing either suspended from the ceiling, or hung on the side wall.
I can order a trailer with 96ö wall to wall inside distance and thestandard height is 6ft-6ö however it can be order
Additional 6ö or 12ö increments in height, ie. 7ft, 7ft-6ö,8ft.
Dexter axles use 4 rubber rubes to surround the square axle in a square housing. It is an excellent axle and it lower the trailer several inches over a sprung axle. They are the way to go I think..
As young A&P I covered a few planes with Grade ôAö fabric. It as a real pain and very time consuming. AND it used Nitrate dope in most of the build up process because only nitrate was taughtening.
The topcoat could be butyrate. This finish was very slick when done and I always thought offered less drag, but it burns like a ping pong ball when on fire.
I remember when Stits came on the scene and it was overly expensive and only a few people used it. I did not it was mostly fire resistant. Then for many years, Stits was the main covering process to use.
SO, even though Oratex is a little expensive, it looks fast to install, the color saturation is perfect and I suspect it will be the covering of the future. Ill certainly try it next time I have to recover something.
Mark Smith, Davenport, Washington
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
7.5ö thick, is this close? The reason I ask is if I put a gull in an enclosed trailer, I would need thetrailer to be high enough inside to house the fuselage with the wing either suspended from the ceiling, or hung on the side wall.
I can order a trailer with 96ö wall to wall inside distance and thestandard height is 6ft-6ö however it can be order
Additional 6ö or 12ö increments in height, ie. 7ft, 7ft-6ö,8ft.
Dexter axles use 4 rubber rubes to surround the square axle in a square housing. It is an excellent axle and it lower the trailer several inches over a sprung axle. They are the way to go I think..
As young A&P I covered a few planes with Grade ôAö fabric. It as a real pain and very time consuming. AND it used Nitrate dope in most of the build up process because only nitrate was taughtening.
The topcoat could be butyrate. This finish was very slick when done and I always thought offered less drag, but it burns like a ping pong ball when on fire.
I remember when Stits came on the scene and it was overly expensive and only a few people used it. I did not it was mostly fire resistant. Then for many years, Stits was the main covering process to use.
SO, even though Oratex is a little expensive, it looks fast to install, the color saturation is perfect and I suspect it will be the covering of the future. Ill certainly try it next time I have to recover something.
Mark Smith, Davenport, Washington
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
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earthstaraircraft
Re: Oratex vs. Stits for covering Gulls
Hi
My trailer has leaf springs.
Happy Flying
Mark
Sent from my iPhone
My trailer has leaf springs.
Happy Flying
Mark
Sent from my iPhone
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rahulchoudhary73
Re: Oratex vs. Stits for covering Gulls
relooking, now i can better appreciate 'the twist is in the tail'. stifling melodrama here, these parts get a 150mph+ pounding from a wide steradian. over half the egull's noise must come from here, that little opening above the rudder, the boom tube rear opening, the trim tab lever. maybe rubber molds.
likely the internals of the sections are in Mark's purview. but i'd like easy disassembly to regrease ball bearings and straighten things out. really hope it's not sliding contact, if so then some oiling points. it'll be nice to see the three or four points the rudder and stabilator actually attach to the gull at. i'd vote for some titanium in there. oil or oil in the grease will evaporate faster, along with the kind of heat and dust in a desert latitude27.
thanks, r2c2
this what 28yrs of sliding friction does to a gate,
likely the internals of the sections are in Mark's purview. but i'd like easy disassembly to regrease ball bearings and straighten things out. really hope it's not sliding contact, if so then some oiling points. it'll be nice to see the three or four points the rudder and stabilator actually attach to the gull at. i'd vote for some titanium in there. oil or oil in the grease will evaporate faster, along with the kind of heat and dust in a desert latitude27.
thanks, r2c2
this what 28yrs of sliding friction does to a gate,
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rahulchoudhary73
Re: Oratex vs. Stits for covering Gulls
relooking, now i can better appreciate 'the twist is in the tail'. stifling melodrama here, these parts get a 150mph+ pounding from a wide steradian. over half the egull's noise must come from here, that little opening above the rudder, the boom tube rear opening, the trim tab lever. maybe rubber molds.
likely the internals of the sections are in Mark's purview. but i'd like easy disassembly to regrease ball bearings and straighten things out. really hope it's not sliding contact, if so then some oiling points. it'll be nice to see the three or four points the rudder and stabilator actually attach to the gull at. i'd vote for some titanium in there. oil or oil in the grease will evaporate faster, along with the kind of heat and dust in a desert latitude27.
thanks, r2c2
this what 28yrs of sliding friction does to a gate,
likely the internals of the sections are in Mark's purview. but i'd like easy disassembly to regrease ball bearings and straighten things out. really hope it's not sliding contact, if so then some oiling points. it'll be nice to see the three or four points the rudder and stabilator actually attach to the gull at. i'd vote for some titanium in there. oil or oil in the grease will evaporate faster, along with the kind of heat and dust in a desert latitude27.
thanks, r2c2
this what 28yrs of sliding friction does to a gate,
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