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- Newsgroups: sci.space
- Path: sparky!uunet!paladin.american.edu!howland.reston.ans.net!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!news.dfrf.nasa.gov!shafer
- From: shafer@rigel.dfrf.nasa.gov (Mary Shafer)
- Subject: Re: Aurora
- In-Reply-To: PHARABOD@FRCPN11.IN2P3.FR's message of 22 Dec 92 14:54:42 GMT
- Message-ID: <SHAFER.92Dec22074730@rigel.dfrf.nasa.gov>
- Sender: news@news.dfrf.nasa.gov (Usenet news)
- Organization: NASA Dryden, Edwards, Cal.
- References: <Bzo1Fv.MD0.1@cs.cmu.edu>
- Distribution: sci
- Date: Tue, 22 Dec 1992 15:47:36 GMT
- Lines: 55
-
- On 22 Dec 92 14:54:42 GMT, PHARABOD@FRCPN11.IN2P3.FR said:
-
- JP> In answer to John Roberts (Tue, 22 Dec 92 00:27:14 EST):
-
- >I suspect the misunderstanding is due to one of those words that's
- >nearly the same in two languages, but which has slightly different
- >connotation. Doesn't the French verb "chasser" mean "to hunt"?
-
- JP> Yes, "chasser" means "to hunt", and it is very agressive. What we
- JP> call an "avion de chasse" is what you call a "fighter". According
- JP> to the dictionary, "to chase" seems indeed a little less agressive,
- JP> and may be translated by "chasser" but also by "poursuivre" (= "to
- JP> pursue"), so there is some ambiguity.
- JP> However, a F-16 is a fighter, and I still find a little disturbing
- JP> that US fighters chase US "deep black" planes.
-
- Traditionally, we have always chased high, fast aircraft with
- high-performance aircraft (fighters). Here at Dryden, we've used
- F-104s, T-38s, F-18s, F-100s, T-33s, and other high-performance
- aircraft.
-
- High-performance aircraft have the best flight envelope to stay with
- the test plane if it's got any kind of envelope at all. Plus, they're
- mature technology, so your chase won't break and cancel the mission.
- (Well, not often--we had a problem yesterday with the second flight of
- the HARV, when the chase F-18 had a problem on the ramp and the HARV
- had to hold until they got the chase fixed, but it only took twenty
- minutes or so.)
-
- After all, the French chased Concorde with Mirages.
-
- I don't understand why you find this "disturbing". The chase planes
- don't carry missiles or anything; they just fly safety chase. They're
- not there to shoot down the test airplane or launch missiles at
- traffic. They're just there if there's a problem. They take the
- radio calls, watch the position in the restricted area, look for
- traffic, and keep an eye on the test plane for things like leaks. We
- had a USAF chase pilot in an F-4 catch a hydraulic leak in the
- AFTI/F-111 very early. The AFTI/F-111 RTBed immediately and ran out
- of hydraulic pressure on the taxiway; we may well have lost the test
- aircraft if chase hadn't noticed the thin stream of fluid\ coming off
- the plane.
-
- Perhaps you're confused by the fact that high-performance aircraft are
- designated as fighters? Many of these aircraft are dedicated to the
- chase role; the USAF's T-38 pacers (used for airspeed and altitude
- calibrations) are a good example.
-
- What were you planning on chasing a supersonic/hypersonic plane with?
- A Cessna 172? We chased our hypersonic airplane, the X-15, with
- F-104s.
- --
- Mary Shafer DoD #0362 KotFR NASA Dryden Flight Research Facility, Edwards, CA
- shafer@rigel.dfrf.nasa.gov Of course I don't speak for NASA
- "A MiG at your six is better than no MiG at all." Unknown US fighter pilot
-