Why does the shuttle throttle on ascent?

Henry Spencer wrote:
Yep, lots of compromises in some of those wartime designs... Some of the
photo-recon versions of the Spitfire had a tail tank that compromised
stability even more drastically

_Tail tank_?! Oh, I've got to see a cutaway of this! :-)
Apparently, some Soviet jets used fuel tanks in the vertical fin.
The Monogram (now it's Revell after the two companies merged)
transparent model of the P-51D has the fuselage fuel tank in it:
http://www.hobbylinc.com/htm/rvl/rvl04726.htm
The really amazing model was the transparent Monogram 1/24th scale Bell
UH-1 "Huey" helicopter.
It took forever to spin up to full speed, but God help you if that main
rotor ever hit you at full RPM. :-D

Pat

In article ,
Pat Flannery wrote:
Yep, lots of compromises in some of those wartime designs... Some of the
photo-recon versions of the Spitfire had a tail tank that compromised
stability even more drastically

_Tail tank_?! Oh, I've got to see a cutaway of this! :-)

Not literally in the tail, if (dim) memory serves, but it was called that
because it was in the aft fuselage.
--
spsystems.net is temporarily off the air; | Henry Spencer
mail to henry at zoo.utoronto.ca instead. |

"Pat Flannery" wrote in message
...

The really amazing model was the transparent Monogram 1/24th scale Bell
UH-1 "Huey" helicopter.
It took forever to spin up to full speed, but God help you if that main
rotor ever hit you at full RPM. :-D

I didn't have a transparent UH-1, but the one I did their regular UH-1 model
(at least I think it was a Monogram). I modified so that it would spin the
top rotor via an electric motor and a couple of LEGO gears. Luckily on this
model the fuselage cover easily slid on and off, so everything was hidden.
Boy that thing would spin that main rotor *fast*. ;-)

Unfortunately, my painting skills weren't that great at the time, so the
overall appearance was rather shabby and like almost all of my (poorly
built) models from that era, it was likely destroyed by fire crackers.

Jeff
--
"They that can give up essential liberty to obtain a
little temporary safety deserve neither liberty nor
safety"
- B. Franklin, Bartlett's Familiar Quotations (1919)

On Tue, 9 Jan 2007 08:44:27 -0600, Jeff Findley wrote
(in article ):

and like almost all of my (poorly built) models from that era, it was likely
destroyed by fire crackers.

We loaded pellets into our Crossman airguns, but the principle was the
same. :-)

--
Herb Schaltegger
"You can run on for a long time . . . sooner or later, God'll cut you
down." - Johnny Cash
http://www.angryherb.net

"Herb Schaltegger" wrote in
message .com...
We loaded pellets into our Crossman airguns, but the principle was the
same. :-)

My brother and I used to sink battleship models that way. Once surfaced and
dried out again, a piece of paper coated with glue made it seaworthy again.
We had many models that started with styrene and ended with paper mache.

On Wed, 10 Jan 2007 18:58:43 -0600, Scott Hedrick wrote
(in article ):


"Herb Schaltegger" wrote in
message .com...
We loaded pellets into our Crossman airguns, but the principle was the
same. :-)

My brother and I used to sink battleship models that way. Once surfaced and
dried out again, a piece of paper coated with glue made it seaworthy again.
We had many models that started with styrene and ended with paper mache.



We also used to use bags full of those green plastic army men as BB
targets. I will never forget my favorite lucky shot. You remember
that guy who was standing up, arm hauled back with grenade in hand
ready to throw? I once managed to hit one of those guys dead-center in
the head, causing the plastic to extrude into a perfectly circular ring
around the guy's brand-new copper face. :-D


--
Herb Schaltegger
"You can run on for a long time . . . sooner or later, God'll cut you
down." - Johnny Cash
http://www.angryherb.net

Scott Hedrick wrote:

My brother and I used to sink battleship models that way. Once surfaced and
dried out again, a piece of paper coated with glue made it seaworthy again.
We had many models that started with styrene and ended with paper mache.


There is a group of ship modelers who build radio controlled warships
out of balsa wood, plywood, and Silkspan fabric that are themselves
equipped with remote control BB guns and go out sailing around sinking
each other.
The radio gear is kept in a BB protected waterproof container so that
it doesn't get damaged when the ship goes down.
http://www.modelwarshipcombat.com/
This must be a _lot_ of fun! :-)

Pat

Jeff Findley wrote:
I didn't have a transparent UH-1, but the one I did their regular UH-1 model
(at least I think it was a Monogram). I modified so that it would spin the
top rotor via an electric motor and a couple of LEGO gears. Luckily on this
model the fuselage cover easily slid on and off, so everything was hidden.
Boy that thing would spin that main rotor *fast*. ;-)

Yes, they also did a non-transparent version, minus some of the inner
framework parts.
Unfortunately, my painting skills weren't that great at the time, so the
overall appearance was rather shabby and like almost all of my (poorly
built) models from that era, it was likely destroyed by fire crackers.

I've seen some pretty shabby looking real ones over the years.
Monogram also did a 1/48 scale Huey and Huey Cobra.
Revell did a 1/32 scale Huey ( in fact they did at least two versions of
it) in 1/32 scale, and also did a 1/32 scale Cobra.
These all were around at the time of the Vietnam War, so Hueys were well
known.
Want to see my favorite Vietnam-era weapon?
The farm tractor company, Allis-Chalmers, goes to war in a big way in a
tiny tank:
http://en.wikipedia.org/wiki/Ontos_tank

Pat

Jeff

Jeff Findley wrote:
"Pat Flannery" wrote in message
...

The really amazing model was the transparent Monogram 1/24th scale Bell
UH-1 "Huey" helicopter.
It took forever to spin up to full speed, but God help you if that main
rotor ever hit you at full RPM. :-D

Iirc, this was the 'copter with what my Dad called the "Jesus Nut", that
one nut that allegedly held the whole craft together and, when hit by
enemy fire, gave all aboard just enough time to yell "Oh, JESUS!".



--

..

"Though I could not caution all, I yet may warn a few:
Don't lend your hand to raise no flag atop no ship of fools!"

--grateful dead.
__________________________________________________ _____________
Mike Flugennock, flugennock at sinkers dot org
"Mikey'zine": dubya dubya dubya dot sinkers dot org

Pat Flannery wrote:



MichaelJP wrote:
I wonder how many found it too much and came to grief - were there any
trainer versions of the P51D or was the first flight always the first
solo as well?


I don't think I've ever seen a trainer P-51, in fact most U.S. WW II
fighter didn't have a trainer version.
I assume that after you had done enough hours in a Texan trainer they
assumed you were ready to take on a Mustang, although I have heard of
some pilots training stateside in P-39s before moving up to P-47s or
P-51s overseas.
(Chuck Yeager for instance)

During the war there weren't any 2 chair P-51s (Except a few one-offs like
the 2-seat P-51B that was used by Eisenhower for direct recon of Normandy.)

There were some TF-51Ds put together after the war by Temco - They can be
spotted by their having the bigger F-51H fin & rudder, and a canopy shape
that gives a bit more rear headroom. Cavalier made some, as well -
including a couple delivered to the U.S. Army in the 1960s for use as chase
planes for the AH-56 Cheyenne Compound Helicopter.

But, backduring the War, the usual procedure before transitioning to a singe
seat fighter was to demonstrate proficiency in landing an AT-6 from the
read seat.
This gave the same lousy over-the-nose visibility, and the T-6's much
snarkier behavior on landing and rollout meant that if you could handle
that, you could pretty much handle anything.

Figher training (More of less what we'd call LIFT (Lead-In Fighter Training
these days) was typically performed in war-weary P-39s or P-40s. It was
considered part of the Advanced Single Engine syllabus.

The U.S. Aviation Training Programs, both Army and Navy, were some of the
most amazing miracles of WW 2. A lot of study went into syllabus and
methods - And the result was Pilots coming out of training in with 250-300
hours who could not only fly a fighter, but fly it on instruments, navigate
their way from England to Prague and back, and fight the Luftwaffe (or the
IJN) to a standstill when they got there.
Well, and the U.S. Aviation Industry, that could build fighters that could
not only fly from England to Prague, but take on the short-ranged
interceptors when it got there, and, if necessary, run them out of gas, and
fly home.
(The only German fighter pilots who got instrument training were the
NachtJagd. This was a factor in choosing bomber pilots to fly the early
jets - they could make instrument let-down in the usual crappy German
weather. An Me 262 didn't have the fuel on board to stooge around looking
for a hole in the clouds to descend through, or a VFR airfield.

Pete Stickney
Without data, all you have is an opinion