Stargazer2006 wrote:I'm honored to find myself quoted in several places as the "usual source", although my name doesn't seem to appear anywhere... I wish to say that the "AV ..." numbers next to a couple of models point to an old reference system I once used and indicate French aviation weekly AViation Magazine.
I'm honored to find myself quoted in several places as the "usual source", although my name doesn't seem to appear anywhere... I wish to say that the "AV ..." numbers next to a couple of models point to an old reference system I once used and indicate French aviation weekly AViation Magazine.
Hahaha, well I hope its all right with you if we keep the lists here. Many apologies for not crediting you by name, mate.
No specific designations given, but there were a few civil proposals of the Airgeep.
We have here the latest in primitive technology.
Internet + Opinions = OMG we are SCREWED!
-- Edited by hesham on Sunday 12th of December 2010 01:06:17 PM
My list. I'm having problems with it, so can someone help please?
Frank Nicholas Piasecki was also previously involved in development of the Platt-LePage XR-1 before undertaking his own projects.
PV-1 -¬†Forum‚Äôs first design to demonstrate new ideas and unique anti-torque system with a fan blowing air through the tail cone (like NOTAR), turned by control vanes in the exit. Considered a high development risk, but proposed several years later for the air ambulance competition (UH-1).
PA-1 - Very heavy-lift flying-crane helicopter project with tip-jets.
PV-2 - Small helicopter¬†powered by a four-cylinder, air-cooled Franklin engine, developing ninety horsepower. The engine is mounted with its crankshaft upright.
PA-2C - 1956 project for a high-speed VTOL "Ring Wing" aircraft with¬†two T-58 turbo-shaft engines. Formed the basis of future Vectored Thrust Ducted Propeller (VTDP) designs.
PV-3¬†"Flying Banana"¬†-¬†Tandem-rotor helicopter powered by a Wright R-975 piston-engine.
PA-4 "Sea Bat" - Naval quad-rotor UAV project. First Sea-Bat was damaged in a maneuver to avoid hitting an unauthorized person in the test area, but development continued.
PV-11 - Utility helicopter developed from PV-2 for US Navy.
PV-12 - See PV-18 below.
PV-14 - See PV-18 below. (Did I mix this up?)
PV-15 / H-16 "Transporter"¬†- US Air Force tandem-rotor helicopter¬†intended for use as a long-range SAR aircraft.
PV-17 - (?) See PV-18 below.
PD/PV-18 -¬†Compact twin-overlapping tandem-rotor utility helicopter.¬†
PH-21 - (?) Civilian aircraft same as Model 44A???
PD/PV-22 / H-21 "Flying Banana" - Improved version of the Rescuer.
PA-39 "Gargantua" - Concept of utilizing multiple helicopters joined together to lift a common payload. Lead to development of PA-97 "Heli-Stat".
PH-/PV-42 - See PV-22 (H-21 series) above.
PV-44 - See Model 44 series in PV-22 (H-21 series) above.
PV-45 - USAF YH-16A, See PV-15 (H-16) above.
PH-55 "Retractoplane" - Aircraft using rotor blades with reverse taper. (?)
PA-59 / VZ-8 "Airgeep" - Prototype flying platform with two tandem three-blade ducted rotors. To fulfill a US Army Transportation Research Command contract for a flying jeep in 1957.
(P)V-63 - See PV-18 above.
(P)V-71 -¬†See PV-22 (H-21 series) above.
V-76 /¬†VZ-2V¬†- USAF experimental tilt-wing VTOL aircraft. (?)
PA-97 "Heli-Stat" - Large aircraft made up of a blimp and four H-21 fuselages, developed from PA-39 (PA-97-212/B).
16H "Pathfinder" - Compound helicopter research designs featuring the Vectored Thrust Ducted Propeller (VTDP) technology.
X-49A / H-60 "Speed Hawk" - Four-blade twin-engined experimental compound helicopter converted from YSH-60F with VTDP technology. Powered by two General Electric T700-GE-701C engines.
"Cobra" / "Speed Cobra" - Projected version of AH-1W with Vectored Thrust Ducted Propeller (VTDP) in place of tail rotor system.
"Speed Apache" -¬†Projected version of AH-64 with VTDP in place of tail rotor system.
"Air Guard"¬†- UAV project with VTDP technology.
"Air Scout" - Scaled down unmanned version of PA-59H Airgeep.
-- Edited by hannetonIII on Wednesday 5th of October 2011 12:41:23 AM
OK I made an edit where XHRP-X can fit into the system. From all of the sources I have read, there were three HRP prototypes: The first one factory designated PV-3 (which must have been XHRP-X in the military system since the other ones had a "1" instead of "X"), the second for US Navy flight trials (as XHRP-1) and the third for flight testing (as XHRP-1SDTA). Confusing, but I think I get it now!
But I am really hopeless wth the rest of Piasecki's designations. Can you point out the ones I've messed up please?
and here is the Piasecki PA-1;
Thanks hesham, just added it to the list.