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NASA 991 had numerous special additions for high-angle-of-attack and spin-recovery research. These included a battery-powered auxiliary power unit, a flight test nose boom, and a special spin recovery system, consisting of forward mounted, hydraulically actuated canards and an emergency spin chute.
AeroFranz said:I found mention of some curious hydraulically-actuated canard surfaces used during the early phases of testing of the Tomcat. I am NOT talking about the glove vanes. These were mounted closer to the nose below the canopy rails level.
NASA 991 had numerous special additions for high-angle-of-attack and spin-recovery research. These included a battery-powered auxiliary power unit, a flight test nose boom, and a special spin recovery system, consisting of forward mounted, hydraulically actuated canards and an emergency spin chute.
It may be the black surfaces (shown retracted) seen on this picture, courtesy of NASA
Can anyone share more info about these tests and the canards themselves?
AeroFranz said:Mea culpa for not searching first! :-[
Thanks, the pics posted show the canards nicely.
RadicalDisco said:Does anyone have pictures of the marks indicating the ramp position of the F-14's intake ramps? What's the highest mach setting of the intake? If I recall correctly, the F-14's ramps has indicator marks going to Mach 2.8.
AeroFranz said:These canards are also reminiscing of strakes. I wonder if part of their effect is not local, but rather downstream, i.e., at high alpha the surface sheds a vortex that modifies the airflow over the tail. However i suspect you'd deploy the surfaces symmetrically if that were the case...
Sundog said:It seems to me they behave more like a fence. Instead of allowing the flow to "flow" around the nose in a spin, I figured it stopped the circulation around the nose to create more yaw damping from the nose. That's just my guess at this point, though.
Tailspin Turtle said:Could be - I was hoping for a NASA report on the testing, either wind tunnel or actual aircraft, but had no luck finding one.
I'm still a bit bummed that the type is retired in the USN.
translation
Japanese F-15Js challenge USN F-14s back in 1980 in a mock fight
and F-15s lost
because the F-14s refused to dogfight and used AIM-54s
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最強の戦闘機・F‐15のパイロット「イーグルドライバー」から"鷲神"と呼ばれるふたりの男|ニフティニュース
2020年度に、航空自衛隊からF-4EJファントム戦闘機が全機退役する。今、三沢基地で302飛行隊は、F-4からF‐35ライトニング2ステルス戦闘機に機種転換中である。だが、戦力化するにはまだ時間がか…news.nifty.com
How many squadrons would still be operational? Where would spare parts come from? I think the tomcat died the day Cheney ordered tools destroyed.I'm still a bit bummed that the type is retired in the USN.
That decision was pure idiocy.
How many squadrons would still be operational? Where would spare parts come from? I think the tomcat died the day Cheney ordered tools destroyed.I'm still a bit bummed that the type is retired in the USN.
That decision was pure idiocy.
Grumman F-14A Model Stores Investigation in the 9x7 Ft. Wind Tunnel (Test No. 97-446), 3/4 Front View, Top
1971
NARA