[net.aviation] Sidewinder vs. 172

wanttaja@ssc-vax.UUCP (Ronald J Wanttaja) (11/01/84)

<"Cessna 09 Tango, cleared to land, check gear down">
<"Roger, gear down and welded...">

Since it has been pretty quiet on net.aviation, I'm throwing out a question
to y'all.  Let's take, for instance, the Sidewinder Air-to-Air missile, or
its Russkie version, the Atoll.  How effective are these against a non-turbine
powered aircraft?  Apparently, the ground launched anti-aircraft missiles are
pretty non-discriminatory, i.e., they'll take off after any heat source.  I
would suspect, however, that the air launched kind have various anti-spoofing
features that may cut down on their effectiveness against cooler targets.
Maybe they wouldn't be so cool... but the major heat source, the cylinders,
is shielded by the cowling, and in aircraft like the P-51, further shielded
by the water cooling jacket.  To set the input parameters, I would state
two conditions:

1.  Sidewinder/Atoll against P-51 (after all, there is one Latin American
country that still operates F-51s)

2.  Sidewinder/Atoll against Cessna 172 (I may want to take an aerial tour
of Kamchatka Peninsula some day)

Please state if you are discussing the "old" Sidewinder or the "All Aspect"
missile.  Lets get some new discussion going here!  I'm tired of
"Re:re:re:re B-1 vs. B-52!"

				   Ronald J. Wanttaja, Lieutenant
				   Queens own Kamikazi Highlanders
				   (ssc-vax!wanttaja)

Flames will be dealt with by Redeye/SA-7.  Be warned.

ralph@inuxc.UUCP (Ralph Keyser) (11/07/84)

I'm not going to claim to be an expert on heat seeking missiles
(whoosh! there goes another one!), but my guess would be that
Sidewinders would be just about worthless against a 172 or P-51 in
the "out of the box" configuration. The only thing that's going to
get hot enough to present a good target is the exhaust stack (or
stacks if you're a Mustang), and heat seeking missiles (especially
the newer ones) are trained to target *only* on things that look
like jet exhausts. The designers work really hard to get them to
ignore flares, the sun, 5 alarm chili, etc. They would probably tend
to ignore piston engine exhausts as well.
     Older heat seekers, however, were not nearly as smart, and one
of them just might present a problem as you are cruising over Kamchatka
in your Mustang. I don't think the Cessna puts out enough of a signature
for even older Atolls. 
     Not to worry, they'll just drop their gear and flaps so they can
go slow enough and take pot shots at you with the cannon instead.

	Pleasant Flying!

		Ralph Keyser

wanttaja@ssc-vax.UUCP (Ronald J Wanttaja) (11/19/84)

<"Cessna 09 Tango, cleared to land, check gear down">
<"Roger, gear down and welded...">

I'm resubmitting this article, as we have had some difficulty getting
news in and out.  My apologies for resubmittal if you all were just
ignoring it :-).

Since it has been pretty quiet on net.aviation, I'm throwing out a question
to y'all.  Let's take, for instance, the Sidewinder Air-to-Air missile, or
its Russkie version, the Atoll.  How effective are these against a non-turbine
powered aircraft?  Apparently, the ground launched anti-aircraft missiles are
pretty non-discriminatory, i.e., they'll take off after any heat source.  I
would suspect, however, that the air launched kind have various anti-spoofing
features that may cut down on their effectiveness against cooler targets.
Maybe they wouldn't be so cool... but the major heat source, the cylinders,
is shielded by the cowling, and in aircraft like the P-51, further shielded
by the water cooling jacket.  To set the input parameters, I would state
two conditions:

1.  Sidewinder/Atoll against P-51 (after all, there is one Latin American
country that still operates F-51s)

2.  Sidewinder/Atoll against Cessna 172 (I may want to take an aerial tour
of Kamchatka Peninsula some day)

Lets get some new discussion going here!  I'm tired of "Re:Re:Re: B-1 vs
B-52!"

				   Ronald J. Wanttaja, Lieutenant
				   Queens own Kamikazi Highlanders
				   (ssc-vax!wanttaja)

Flames will be dealt with by Redeye/SA-7.  Be warned.

wolit@rabbit.UUCP (Jan Wolitzky) (11/28/84)

If IR-guided missiles were all you had to worry about, I'd guess
you'd be pretty safe.  Just to be sure, why not bring along a couple
of highway flares, and drop them out the window occasionally, to spoof
any that do lock onto your exhaust pipe.

Unfortunately, you'd also have to contend with 20mm cannon fire, which
is harder to trick...

For what it's worth, the awful film "The Final Countdown" a few years
ago showed an F-14 downing a WWII-vintage Misubishi Zero with a
Sidewinder.  It was incredible fiction, of course, but the producers
got so much cooperation from the US Navy -- it was the most unsubtle
recruiting propaganda I've ever seen -- that they probably checked to
make sure it was technically accurate.

Incidentally, there is also a *NORTH* American country that has plans
to use the P-51.  (No pun intended -- the plane was originally
manufactured by North American Aviation.)  Piper Aircraft Co. is
trying to sell the idea of a turboprop-powered P-51 to the USAF as a
close-support plane.  They call it the "Enforcer," but I don't think
anyone is taking the idea too seriously -- for one thing, P-51
airframes are incredibly rare, and I would imagine that setting up the
tooling to manufacture new one would be too expensive to be
competitive with currently-manufactured foreign planes of this type.

-- 
Jan Wolitzky, AT&T Bell Laboratories, Murray Hill, NJ; (201) 582-2998

cfiaime@ihnp4.UUCP (Jeff Williams) (11/29/84)

Mention was made of the Piper Enforcer...

Indeed, this is based on the North American P-51 as modified 
by Cavalier.  Back in the late 1960's, this small Florida based
company modified several P-51D's with Rolls-Royce Dart turbine
engines as a possible attack airplane for use in Southeast Asia.
The response was, as they say, underwhelming.  However, the idea
was sound...

Enter, in the early 1970's, Piper Aircraft.  They bought the rights
to the P-51 from Cavalier who had bought the rights from North 
American in the late 1950's.  The first Piper Enforcer was indeed
a modified 1944 model P-51D which had been through the Cavalier
rebuild program a mere fifteen years before.  This particular
airframe still exists at the Piper Lakeland plant.

Well, Piper has been trying for oh these many years to find a buyer
for this machine.  Lets face it, the beast will out A-10 an A-10
on everything except the 30mm cannon.  The Enforcer carries several
20mm cannons instead.  Congress decided that Piper ought to have a
chance to prove the airplane, so instructed the Air Force to purchase
two of the things for flight test.  The Air Force is more interested
in high technology jets, so relegates this program to the back burner.
The low-key flight test program was finished several months ago with
very good results.

About the two flight test aircraft.  These are new production P-51
airframes built on the old tooling.  Piper said that World War II
vintage parts were not really in good enough shape to use, so the
two new prototypes used over 98% new parts.  The engines are Allisons,
and the propellers are modified Skyraider units.  If a production
contract is awarded, new propellers will be used, making the airplane
perform even better.

				Jeff Williams
				AT&T Bell Laboratories
				ihnp4!cfiaime