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1. 03:59 PM - SEC: UNCLASSIFIED Tip Tanks by Johanson (Francis, David CMDR)
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| Subject: | Tip Tanks by Johanson |
--> RV7-List message posted by: "Francis, David CMDR" <David.Francis@defence.gov.au>
Allen,
I have installed two sets of Johanson tip tanks, and have also observed
their construction during some maintenance training I managed to organise in
Adelaide, South Australia.
The fuel capacity is 12.5 USG. Each fibreglass tanks should weigh in at 11.5
lbs each. The fibreglass tanks are over-built in order to withstand hangar
rash. There is around 70 or more manhours in the construction of each set of
tanks, and that drives the price.
They are now a very mature product.
Naturally the inboard rim of each tank has to be built slightly oversize to
allow for individual variation on wing tip profile and that generates a lot
of trimming with a cut-off disk, and some sanding down with a coarse flap
wheel. Then you get to instal a lot of nutplates. Allow 4 days work to
install a pair of tanks if you have seen the process before, more if you
havent.
What else do you need to know?
Email me direct if you would like more info, of which I have plenty.
Regards,
David Francis, Canberra, Australia
-----Original Message-----
From: Allen Fulmer [mailto:afulmer@charter.net]
Subject: POSSIBLE SPAM-DEFGRAM178/04 [dkn01] RV7-List: Tip Tanks by
Johanson
--> RV7-List message posted by: "Allen Fulmer" <afulmer@charter.net>
Anyone installed the tip tanks by Jon Johanson?
If so, comments pro and/or con?
Expensive but a reported extra 12 gallons per side!
Thanks,
Allen Fulmer
RV7 Wings
N808AF reserved
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