Kach,

I know you like interesting designs...I worked on the below project (not as an engineer but helping manage the government side of things) in the late 90's. It finally flew earlier this year. The Piasecki brothers invited me up. Pretty cool to see a plan come together;)

http://forums.pelicanparts.com/uploads11/Speedhawk1185984811.jpg

Cool chopper Seahawk.


http://forums.streetfire.net/showthread.php?t=12237
http://www.toy-jet.ls1fun.com/images/mvcrear.jpg
http://www.toy-jet.ls1fun.com/images/mvcgalveston.jpg


Big Geocities site with lots of helicopters.:
http://www.geocities.com/airbornemuseum/sld026.htm
http://forums.pelicanparts.com/uploa...1185985230.gif

Can anyone fill me in one what this is/was? I'm guessing its some kind of VTOL plane but beyond that I'm stumped!

http://www.valka.cz/newdesign/v800/h...1101490606.jpg

Looks like one of those devices out of the Adam & Eve catalouge....

Seahawk, I understand that the rear vectored fan is supposed to increase foward speed. But is'nt the VNES limited by retreating blade stall?

StevePH, check out the pontoons. Another one of those crazy Russian "pond hoppers".

http://i4.photobucket.com/albums/y126/DryRot/1.jpg

http://i4.photobucket.com/albums/y126/DryRot/2.jpg

http://i4.photobucket.com/albums/y126/DryRot/3.jpg

http://i4.photobucket.com/albums/y126/DryRot/4.jpg

http://i4.photobucket.com/albums/y126/DryRot/5.jpg

http://i4.photobucket.com/albums/y126/DryRot/6.jpg

http://i4.photobucket.com/albums/y126/DryRot/7.jpg

http://i4.photobucket.com/albums/y126/DryRot/8.jpg

http://i4.photobucket.com/albums/y126/DryRot/12.jpg

http://i4.photobucket.com/albums/y126/DryRot/13.jpg

Nelson Piquet and wife attending drivers education meeting(traffic school) after both lost their licenses for bad drivinghttp://forums.pelicanparts.com/uploa...1185993241.jpg

why didnt they attach some floatation to that boat before they pullled it off the brakewater? or did they forget that the tide was coing in?

http://forums.pelicanparts.com/uploa...1185997361.jpg


http://forums.pelicanparts.com/uploa...1185997502.jpg

Edited - Z-man

Just got back...Puamana looking back towards Lahaina....missing it already.

http://forums.pelicanparts.com/uploa...1185997903.jpg

Question as to what on earth this is..

http://forums.pelicanparts.com/uploa...1186005037.jpg


It's a Rooski flying boat. This link give some info

http://www.testpilot.ru/russia/bartini/vva/vva_e.htm

http://forums.pelicanparts.com/uploa...1186013675.jpg
http://forums.pelicanparts.com/uploa...1186013691.jpg
http://forums.pelicanparts.com/uploa...1186013716.jpg

An old SCCA racer
http://forums.pelicanparts.com/uploa...1186013737.jpg

Chopped, shortened & narrowed bug
http://forums.pelicanparts.com/uploa...1186013775.jpg

http://forums.pelicanparts.com/uploa...1186013839.jpg
http://forums.pelicanparts.com/uploa...1186013863.jpg
http://forums.pelicanparts.com/uploa...1186013876.jpg

Absolutely correct...as lift is transfered from the main rotor to the wings, power is transfered away from the main rotor transmission, in effect keeping the rotor tip speed (where they stall) below RBS. Like all hybrid systems (tilt rotor for example) the transition period is most critical. Maneuvering speed is everything.

I don't know where they are in the test profile, but VTDP seems promising:cool: