Hi Jeff... regarding the quiet KRnet I agree but you hit it right on the nose.
I have been busy finishing the brake assemblies, wiring my instrument panel and
rigging the control cables. I will be installing the firewall and getting the
engine mounted over the Christmas and New Years holidays. I hope everyone else
is as busy as you and I.
Great job with your cub and fair winds
Luis R Claudio, KR2S Dallas
On Thursday, December 6, 2018 05:07:54 PM CST, Jeff Scott
via KRnet <[email protected]> wrote:
The KRNet has been pretty quiet as of late. Hopefully that means everyone has
been in the shop working on their planes. At long last, I have finished
rebuilding the tanks in my SuperCub Clone. Back in October, I posted the
issues I had with extensive damage to the fuel system in my SuperCub Clone with
Epoxy Resin tanks. This damage was from use of alcohol free Mogas that
apparently contained other additives that were incompatible with epoxy resins.
I documented on my web site in gruesome detail the process I used to rebuild
these tanks from start to finish.
<http://jeffsplanes.com/Cub/MOGAS/mogas.html> The wings were removed from the
plane. These tanks were gutted out, and built back up with vinylester resin,
then coated with a slosh compound from KBS coatings. Additionally, I have had
a test running for 5 months now with several local alcohol free fuels in
bottles with samples of Orings, fiberglass, and fittings with pipe dope in the
threads. All but one of the local fuels damaged the epoxy impregnated
fiberglass I tested. However, the quick test that I discovered was that fuels
containing the damaging additive also dissolved pipe dope out of the threads of
pipe fitting on contact. So, a quick test to see if the fuel is compatible
with my fuel system is take a fitting with pipe dope worked into the threads,
and drop it into a test sample of the fuel and swirl it around. If the fuel is
incompatible, the pipe dope will dissolve as the test sample is gently swirled
around. If the fuel is compatible, nothing happens. The test samples I took 4
months ago are still soaking, and the fuel from the local Conoco station has
still not dissolved the pipe dope, while the other local fuels dissolved the
pipe dope on contact. Now all I need is some decent weather so I can get the
SuperCub out for some play! -Jeff ScottCherokee Village, AR
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