Fuel tank options.
It (the internal tank foams).. would displace some capacity, yes.
My particular solution, Bruce, is to purchase a blown seamless poly tank, and then plans build around it. I am looking at a tank right now that is holding 250 gallons of water in my cottage. Part of my rain catchment system. It is common material.
My engine compression is safe using 93 octane (boat gas).. NO ethanol!! 100LL is of course also no problem for detonation protection, but I must use lead extraction additive. Neither fuel will attack the poly tank(s)... both tanks can take pressurization, within reason of course. They are tuff!! I have purposely inflated and deflated sealed tanks just to see where they fail at. No dice..
they stayed fluid tight.
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Bruce Crain <jcrain2@...>
Sent: Tuesday, March 23, 2021 8:01 PM
To: firstname.lastname@example.org <email@example.com>
Subject: Re: [Q-List] Forward Canopy geometry
The airframe needs to be as light as possible. The foam filled fuel tanks would take away a bit of fuel volume wouldn’t it?
On Mar 23, 2021, at 6:18 PM, Anthony P <solarant@...> wrote: