First thoughts on building a GT40......

[Doc Watson]

Bill, yes needs updating badly, I've also not disclosed 2 or 3 of the build attempts as they were not to good, very basic 'sticks' to test basic concepts. All fans (3 of them) are independantly powered by three brushless motors and 16 cells, each motor will handle 1Kw of power and rotate the fans at about 35,000 rpm. As far as the computer thing, I've got 3 solid state gyros, and some custom built mixers, and the most complex computer known to man to control it........ my brain..... its going to be scary I've done some testing (in my kitchen) and the fans actually sound like a jet engine, the efflux velocity is about 130-150 mph. Talk about leaf blower........it gives me something to do while I wait for my chassis/motor/body/suspension etc...

BTW the 'other' supplier I've found has a 90% complete chassis and I will visit him in about 2 weeks to check build quality and more importantly to see if I can fit into the chassis. Cant Wait........

[Julian West]

Wow! Great site! You're obviously much too clever [img]/ubbthreads/images/graemlins/grin.gif[/img]

Makes my Mardave Maruader look a bit clunky... [img]/ubbthreads/images/graemlins/shocked.gif[/img]

Altho on a slightly different 'vane', doesn't Andy Sheldon of Tornado also have a business making jet engines for RC aircraft ?

[Bill Bayard]

Doc,

A late friend of mine(whose name I have forgotten), was an engineer at Pratt&Whitney. He showed me some classified stuff on ducted fan tests in the early 80's(early Raptor program). There were some SPECTACULAR failures, but what a neat principle! [img]/ubbthreads/images/graemlins/cool.gif[/img] The ultimate "turn on a dime" aircraft! [img]/ubbthreads/images/graemlins/grin.gif[/img]

The "35" should eat up everything in the sky!

My congratulations to you and everyone else involved!

Quite an accomplishment, and one hell of an aircraft!



Bill