Fokker D7 Wing for 2 Seater

franzkait · 27 August 2006, 03:48 PM

it is not realy GFK, the name is Kevlar , carbon with glas. sometimes we make the tank from aluminium, but the kevlar one looks better. we also have the machine to make it in one piece in a drum from granulate.

Langdon · 27 August 2006, 05:33 PM

Franzkait,

Your wing is looking very nice, I like the idea of the extra tanks to extend the range so you can fly it to airshows. Can you post some photos of your two seat airframe, it was looking very nice when I visited you.

Langdon

Machinbird · 27 August 2006, 05:52 PM

Quote:

Originally Posted by franzkait

we also have the machine to make it in one piece in a drum from granulate.

Are you talking rotational molding Franzkait? With the right material, a person could probably make a very nice tank that way. The tooling should not be terribly expensive either.

franzkait · 27 August 2006, 05:58 PM

the tool is a aluminium casting , split in the center. we make sometimes tanks for aercraft or racing cars and bikes

Prop Nut · 12 September 2006, 12:11 PM

I would like to put in a second vote for detailed photo's of your fuse. I am very interested in building a two place DVII.

gipsymoth236k · 12 September 2006, 03:32 PM

I would really want to seriously consider the total effect of putting a fuel tank with heavy-loaded fuel into an upper wing, as it causes a much higher center of gravity, which is already of BIG concern when ground handling these airplanes, let alone poorer aircraft handling, and spin recovery difficulty.

My thoughts, anyway.

Regards, Gary Sewall

Maxim08 · 12 September 2006, 04:13 PM

Gary,
I understand your concern, but the Rhinebeck Mercedes D VII has been flying with a wing tank for some time now.
Ken Cassens (where is he now?) explained that they wanted to avoid a pressurised fuel system and the potential issues that one would present.
Regards,
Maxim08

gipsymoth236k · 12 September 2006, 05:33 PM

Maxim08,

I can certainly understand the potential problems of fuel starvation with a pressurized fuel system, like the original air pressure system (a bullet can end your fuel feed with loss of air pressure in the tank), so if it can be manageable it makes sense to consider a wing tank gravity-fed fuel system in the D.VII, but I think the idea may be real bad for a design like the Dr.I Triplane, with its already high center of gravity.

Regards, Gary Sewall

franzkait · 13 September 2006, 03:58 PM

many D7 made after 1918 had wing tanks.
Prop Nut, the 2 seater is a project with a university in europa , I can show pictures later,

StephenLawson · 1 October 2006, 03:29 AM

Most impressive.