Fermat All American 47007 Posts user info edit post |
Quote : | "The SR-71 "Blackbird" spy-plane was generally considered
untouchable in enemy airspace. (Possibly the biggest "no shit" in
aviation history)
It flew high enough and fast enough that one design engineer stated
that Webster's should replace their definition of "Impunity" with a
picture of a Blackbird taken at the exact moment it was flying directly
over the Kremlin. Even theoretically, one might conclude that the only way to interecept
the SR-71 at speed and at altitude (using sciences present in the years
of it's operation), , would have been to launch a missle from a
near-space /and/or/ near-speed platform. Which likely would only have been possible using yet another SR-71. Guns wouldn't have been smart to fire while moving at over mach 3.2
(the plane's advertised top-speed), as the frictive forces imposed on
projectiles travelling at these speeds (which would have the bullet
approaching the speeds at which solids behave more like fluids) would
have slowed them down fast enough to pose a fantastic risk to the very
plane from which they were fired.
Even missles would prove improbable here because carrying the
missle would ruin the critical air-flow and sensitive mass-placement of
it's design, (it would almost certainly have had to be mounted
externally) and therefore likely would not come close to the targeted
SR's speed (at least with the missle intact and operational, which is
also unlikely, as the frictive air-forces would have heated most feasable
warheads and missle motors to the point of ruin. It's not that missles
aren't designed to operate in extremely hot conditions, it's that almost
none would have existed that could withstand these temperatures for
the duration of the high-temp/long-time flights that the Blackbird was
expected to execute. [Even after landing, it could not even be
approached by crew for quite a while. 300C surface-temps could be
expected upon engine shutdown]). The cockpit A/C in this plane consumed a non-trivial percentage of the
over-all energy generated by it's freakish engines. The by-product of this is that it could not have been launched from the
plane as a near-space platform either, as the speed of the craft was
what enabled it to travel so high in the first place.
Not to mention that, even if all of this were possible and executable, by
the time the proposed craft could have been, alerted, prepped, manned,
and completed it's start up, warm up, re-fuel, speed up phase, the
target Blackbird would have had the time to complete a lengthwise
circuit in the airspace above the entire Soviet Union.
And to counter these time constraints by keeping at least one of these
proposed planes at-speed at all times by rotating a fleet of them on and
off cycle, the monetary cost would have been, lets say, an item of
concern. The cost of keeping just ONE plane aloft has been estimated at an
average of around $27,000/hr, much of that operational cost went into
the custom fuel. (FYI, the most costly portion of the flight would be the time before high
cruise-speed was achieved, as the faster it went, the more fuel/energy
efficent it's engine's became )
The ultra-specialized fuel, JP-7 [described by it's detractors as being
more expensive per unit volume than single-malt scotch whiskey] was
so difficult and time-consuming to produce, that contemporary industry
and refining proceedures would not have been capable of
manufacturing it fast enough to keep pace with the rate at which it was
burned.
" |
If that's factual, then fuck the moon landing right Fuck the moon-landing. 2/16/2008 7:42:51 PM |
Walter All American 7741 Posts user info edit post |
is it on a treadmill? 2/16/2008 7:44:13 PM |
BigMan157 no u 103354 Posts user info edit post |
i always heard it was drippy when it wasn't flying 2/16/2008 7:48:25 PM |
jackleg All American 170957 Posts user info edit post |
UMMMM
UHHHH
possibly the biggest "no shit" in aviation history!!!1 2/16/2008 7:54:21 PM |
Seotaji All American 34244 Posts user info edit post |
The titanium alloy skin did contract when cool and it did leak fuel like a sieve when on the ground/cold. It needed to be refueled in flight. 2/16/2008 7:56:55 PM |
jackleg All American 170957 Posts user info edit post |
dont listen to Seotaji, i know him in real life. he's not really a rocket ship scientist! 2/16/2008 7:58:23 PM |
Fermat All American 47007 Posts user info edit post |
found it in a collection of old text files i had from school/highspeed internet. was always fascinated by the thing
[Edited on February 16, 2008 at 8:03 PM. Reason : FAST] 2/16/2008 7:59:30 PM |
stowaway All American 11770 Posts user info edit post |
under normal operations it also could only fly for 45 minutes before needing to be refueled. 2/16/2008 8:00:48 PM |
jackleg All American 170957 Posts user info edit post |
only 45? according to the 5 minutes ive been reading about it, that 45 minutes will get you just about anywhere in the country. haha
also Wraith is a rocket scientist or whatever at NASA, he was yelling at people about the treadmill thing.
[Edited on February 16, 2008 at 8:05 PM. Reason : i agree with you based of wikipedia ] 2/16/2008 8:03:46 PM |
Mr. Joshua Swimfanfan 43948 Posts user info edit post |
The wing surface created very little lift at low speeds so that maximum take off weight would be exceeded if the plane took off with a full load of fuel. The little lift also meant that it had to be moving pretty fast to take off so it would burn a lot of fuel getting off the ground and climbing to altitude. Refueling immediately after takeoff was made necessary. 2/16/2008 8:16:01 PM |
stowaway All American 11770 Posts user info edit post |
considering they only take off from US soil, they still have quite a few refueling trips every mission.
fucking hurricanes. 2/16/2008 9:05:04 PM |
wolfpack0122 All American 3129 Posts user info edit post |
I had a huge poster in my room growing up of the SR-71 and at the bottom gave a stat that said it went coast to coast in the US in 68 minutes 2/16/2008 10:03:45 PM |
Mr. Joshua Swimfanfan 43948 Posts user info edit post |
^^ They used to fly out of Okinawa. Could technically still be true I guess. 2/16/2008 10:06:06 PM |
One All American 10570 Posts user info edit post |
why why do you always kick me when im high? knock me down till we see eye to eye figured her out I know she may not be miss right she'll do right now (she'll do right now)
2/16/2008 10:07:12 PM |
chembob Yankee Cowboy 27011 Posts user info edit post |
2/16/2008 10:11:20 PM |
Yoshiemaster Suspended 9388 Posts user info edit post |
if i remmeber correctly, i like a few of their songs 2/16/2008 10:11:41 PM |
Joshua All American 871 Posts user info edit post |
Yes, it's true.
THe SR 71 holds the world record for an air breathing aircraft. It did leak fuel on the ground, and it did expand in flight. A lot of them crashed though. I'm sure it was a bitch to fly.
At Mach 3.2, it was untouchable. It also cruised at something like 60,000 feet. The russians built the Mig 25 Foxbat for the sole purpose of intercepting this aircraft, but that aircraft tops out around Mach 3.1, and the engines melted if the pilot flew past Mach 2.5 or so (thankkfully, us americans have/had superior metallergy).
One of my Aero Professors ("McCrazy") use to work with that program. 2/17/2008 12:33:23 AM |
Spontaneous All American 27372 Posts user info edit post |
I don't mean to piss you off, with things that I might say But when I try to shut my moth, well they come out anyway And I when I speak my mind, that's when we connect Yeah, but that's not, politically correct. 2/17/2008 12:43:15 AM |
One All American 10570 Posts user info edit post |
"1985" is a song best known for its performance in 2004 by the pop punk band Bowling for Soup. Featured in their album A Hangover You Don't Deserve, as well as the American popular music compilation Now That's What I Call Music! 17, and Barbie Hit Mix, Vol. 2, "1985" was originally written and recorded by the band SR-71, led by Mitch Allan. 2/17/2008 12:51:04 AM |