anyone aware of this aircraft - JAXA project ?

[ace5]

http://jda.jaxa.jp/jda/p4_download_e.php?mode=search&f_id=1327&genre=7&category=7006<br /><br />very interesting engineering prototype. What aircraft is this?

 

[soyuztma]

This is a heavily modified Kawasaki C-1 to do research on STOL (Short Take-Off and Landing).<br />More info: http://www.nal.go.jp/flight/eng/Museum/ASKA/aska.html <div class="Discussion_UserSignature"> </div>

 

[bobvanx]

My dada was a hydrolics engineer on the US program back in the 70's for this type of augmented lift.<br /><br /><blockquote><font class="small">In reply to:</font><hr /><p>In addition, considerable concern was expressed over potential control problems in the event that an engine became inoperative during flight at low speeds with high-power settings. With the advent of turbofan engines, however, the efflux from the engines was relatively cool, and large quantities of air became available for increased airflow through the flaps. The turbofan engine, therefore, provided the breakthrough mechanism that permitted researchers to evolve and mature the applications of the EBF concept.<p><hr /></p></p></blockquote><br /><br />Basically, when the military reviewed the plane's flight characteristics, and they saw that the engine thrust "magically" stayed attached to the wing's upper surface, it scared the bejabbers out of them. They were afraid of what might happen should that high thrust ever somehow break the laws of physics and suddenly force the plane into a flat spin, as it was about to land.<br /><br />link

 

[cdr6]

Interestingly, in the early to mid eighty’s NASA operated an aircraft for just this kind of research, the Quiet Shorthaul Research Aircraft, QSRA. We knew it as simply the “Q”.<br /><br />The Q had a successful run at Ames Research Center in Mountain View Calif. The machine itself was a highly modified De Hallavland C-12 Buffalo (exUSAF). Boeing in Seattle did the actual mod, Wings, Tail, Fuselage, and engines. NASA being past masters of more bang for the buck, got the engines from the then defunct A9 prototype program, who had gotten them from an Army CH-47 Chinook helicopter. The A9 as you will recall was the competitor to the A-10 in the USAF AX program. The rest of the machine was salvaged from the bone yard in Tucson, with spares coming from the target aircraft on the Navy’s gunnery ranges in Central Calif.<br /><br />The aircraft flew quite well, and could all but hover in a strong head wind! About 1983ish NASA undertook to fly the thing across the ocean to the Paris Airshow. There it was joined by the XV-15 Tiltrotor and the Enterprise atop its 747 carrier aircraft…<br /><br />The route went north to and across, Canada, Greenland, England and on to Paris where it did some real razzle dazzle for the international crowd. Then the machine was flown all the way back to NASA-Ames in Mt View. And subsequently back to work doing research with programs such as Vstoland and the like. <br /><br />The US Navy meanwhile got interested in the machine as a replacement for its COD aircraft and through ONR (Office of Naval Research) put forth some bucks for more research, out side of the Qs normal design envelope. They sent several pilots to “eval” the machine and upon their report, went all the way and arranged for the Q to fly out to sea and land on the U.S.S. Kittyhawk. <br /><br />The Q’s crewchief reported Navy “guest” pilots did a good job doing a bunch of landings and takeoffs for the assembled “Brass” then the NASA pilot, cigar chomping Bob Innis, took the machine around a

 

[bobvanx]

wow<br /><br />http://ails.arc.nasa.gov/Images/Aeronautics/jpegs/AC80-0613-3_a.jpeg

 

[cdr6]

Yep, that's the Q doing her thing...nice photo! Brings back some good memories...thank you.

 

[vogon13]

Seem to recall 'snooters' on engines kept fod kicked up by front landing gear from being chewed up by engines. PW T-800 used an entirely different concept, an inlet particle seperator. Neat little gadget, engine could ingest toads and pine needles and sand and twigs and ice with no ill effects. <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>