High altitude Helicopter work

"Pete" wrote:


"Mary Shafer" wrote

The book I would like to find is too old, and too insignificant, to
ever show up in digital form on Amazon. It's a schlocky story about a
bunch of fighter pilots, flying F-15s out of Langley AFB, I think,
with some sort of contrived drama and happy ending. The reason I'd
like to find it is the description of the "dead bug" game, which I
think was a "dead Klingon" version. The author's first name may have
been "Maggie" and the title may have had "Eagle(s)" in it. Or maybe
not. I don't expect to ever find this book, obviously.

Mary

Might this be it:
http://www.maggiedavis.com/file/eaglesinfo.html

http://www.fictionwise.com/ebooks/eBook1127.htm
Maggie Davis - Eagles 1980
[excerpt]
"Ladies and gentlemen," a voice said from the overhead loudspeakers, "on
your right you will see the F-15 Eagle, the Air Force's new supersonic air
superiority fighter, taxiing to the runway for takeoff. In a few minutes,
the F-15 will perform a thrilling flight demonstration to illustrate to all
of us here today this remarkable aircraft's capabilities."

available in various forms of eBook for $7

Pete
embrace the google maggie+eagle+f-15 = the above link


The google rocks...all bow down to the google...
--

-Gord.

On Sat, 22 Nov 2003 04:27:11 GMT, "Pete" wrote:


"Mary Shafer" wrote

The book I would like to find is too old, and too insignificant, to
ever show up in digital form on Amazon. It's a schlocky story about a
bunch of fighter pilots, flying F-15s out of Langley AFB, I think,
with some sort of contrived drama and happy ending. The reason I'd
like to find it is the description of the "dead bug" game, which I
think was a "dead Klingon" version. The author's first name may have
been "Maggie" and the title may have had "Eagle(s)" in it. Or maybe
not. I don't expect to ever find this book, obviously.

Might this be it:
http://www.maggiedavis.com/file/eaglesinfo.html

http://www.fictionwise.com/ebooks/eBook1127.htm
Maggie Davis - Eagles 1980
[excerpt]
"Ladies and gentlemen," a voice said from the overhead loudspeakers, "on
your right you will see the F-15 Eagle, the Air Force's new supersonic air
superiority fighter, taxiing to the runway for takeoff. In a few minutes,
the F-15 will perform a thrilling flight demonstration to illustrate to all
of us here today this remarkable aircraft's capabilities."

Dear God. 1980. Twenty-three years ago. Come to think of it, I
borrowed it from the guy who was our NLO (Naval Liaison Officer, for
the obligatory military aviation reference) before Fast Eddie and Ed
came to Dryden in 1983 (he's retiring at the beginning of next year).

I was at Langley Research Center, which is at Langley AFB, one Friday
back about then, watching the F-15 performing a thrilling flight
demonstration to illustrate this remarkable aircraft's capabilities
and it decided to demonstrate the remarkable capability to stream a
flame the length of the airplane from one engine. Needless to say, it
then demonstrated the capabilities of quickly shutting an engine down
and getting on the ground.

Of course, I had previously seen the remarkable airplane illustrate
its capability of having an MEA (Mid-air Engine Anomaly), aka a
disintegrating F-100 compressor disk, for the first time, so I was
prepared for a surprise.

available in various forms of eBook for $7

I don't do e-books, but now I can try abebooks.

embrace the google maggie+eagle+f-15 = the above link

I never thought to try google. I tried abebooks with "Eagle" and
"Eagles" and got too many hits to bear, although I did notice Anton
Meyer's "Once an Eagle" and reread it (I recommend it highly, even
though it's about the Army and not aviation).

Thank you very much.

Mary
--
Mary Shafer Retired aerospace research engineer

Mary Shafer wrote in message . ..

snip


I never thought to try google. I tried abebooks with "Eagle" and
"Eagles" and got too many hits to bear, although I did notice Anton
Meyer's "Once an Eagle" and reread it (I recommend it highly, even
though it's about the Army and not aviation).

One of the real modern classics of the military genre. Spent eons on
the Army Chief of Staff's recommended professional reading list, and
is probably still on it. There was a rather decent (and compared to
most similar efforts rather true to the book) miniseries adaptation of
it on TV back in the late seventies; Sam Elliot played the role of
"Sam Damon".

Brooks


Thank you very much.

Mary

The current altitude record for a small helicopter is:

FAI Class E1b - Altitude Without Payload - takeoff weight 500-1000 Kg
International: 40,820 ft; 12,442 m.
Jean Boulet (France)
Alouette SA 315-001 Lama
Artouste IIIB 735 KW engine
Istres, France June 21, 1972

John Hairell )

Well then, poor "Pedro", a stock H-43 didn't do too badly in 1959 at
somewhere near 10,000 m., wooden blades a'flappin'!

Old Chief Lynn

John Hairell wrote in message . ..

snip

Coming into the thread a bit late.

The current altitude record for a small helicopter is:

FAI Class E1b - Altitude Without Payload - takeoff weight 500-1000 Kg
International: 40,820 ft; 12,442 m.
Jean Boulet (France)
Alouette SA 315-001 Lama
Artouste IIIB 735 KW engine
Istres, France June 21, 1972

It should be pointed out that Boulet achieved the helicopter (not just
the class) absolute altitude record above by climbing the Lama until
it ran out of fuel, and then making the world's longest autorotation
descent. Not exactly representative of practical operational
capability. But the Lama may still be the best high altitude light
utility chopper, even all these years later -- it's still in
commercial service in parts of the world that need its hot/high
capability, although its operating costs rule it out for more routine
work.

In addition to the above altitude record, it also holds the (far more
useful) record for highest landing and takeoff. In 1969, an SA-315B
making demonstration flights for the Indian military, carrying a crew
of two and 308 lb. (120 kg)of fuel, landed and took off again at
24,600 ft. (7,500m) in the Indian Himalaya, so lifting a pilot and
single patient from the lower end of the Western Cwm of Everest (ca.
21,000 ft) should be (relatively) easy (depending on the density
altitude and the winds) for a stripped-down Lama, especially as you
can cache fuel at Everest Base Camp (18,000 feet) a mile or two away
for the trip back down the valley to the hospital.

Unlike the Indian army (for whom it was originally developed; they
call it the Cheetah), the Nepalese military doesn't have any Lamas.
Getting a Squirrel (Ecureil) up that high is quite a feat, and Col.
Madan has rightly been recognized for the rescue. While lift is a
problem at such heights, engine limitations (temps, torque) and
control issues (loss of tail rotor effectiveness, etc.) are often of
equal or greater importance.

Even assuming that adequate control in high, gusty mountain winds and
sufficient power/lift was available to allow routine operations at
such heights, the market for helos that meet these specialized
requirements would be extremely small. Unless your army has got a
good chance of needing to fight in the Himalayas, Andes or the few
other ranges of similar height, such performance isn't routinely
necessary, and you generally sacrifice much else (speed,
maneuverability, operating costs) to get it.

In Afghanistan the U.S. military had such a requirement for the first
time, but fortunately the CH/MH-47s (and probably Marine CH-53Es) had
the ability to operate at such heights with useful (albeit
considerably reduced) payloads. From what I've read the SpecOps
MH-47s were transiting at up to 18,000 feet or so (pax would need
supplemental O2) to get over the Hindu Kush (one of the Himalayan
sub-chains; the highest point in Afghanistan is over 24,000 feet, but
they didn't need to go that high) from their base in one of the
surrounding 'stans, and then making insertions or extractions at
heights in the 10-13,000 foot MSL range. MH-60s were able to get high
enough along with a reasonable payload, but not while carrying
sufficient fuel to eliminate the need for AARs, given the transit
distances involved. Sikorsky S-70 (H-60) altitude versus weight
graphs for IGE and OGE hover and service ceiling are available at
Sikorsky's website.

The Mi-8/17 family (the Mi-24 uses the same powertrain and rotor
system) has also developed a reputation for good high altitude
performance; the Indian military was apparently carrying supplies and
doing troop movements with them at altitudes up to 15,000 feet MSL
(density altitudes probably a couple of thousand feet higher) during
the Kargil fighting in 1999.

BTW, AFAIK the highest piston-engined helo rescue was by a civil
Hiller UH-12E on Mt. McKinley back in the early '60s (IIRR). Two
climbers were brought down (singly) from 18,000 ft. +, and IIRC the
UH-12 in question had a normally aspirated engine rather than a
turbocharged one (the latter may not have even been in production yet,
but I forget).

Guy