I thought this was a great video and story of the SR-71! :)
http://www.greatdanepromilitary.com/SR-71/index.htm
http://www.greatdanepromilitary.com/SR-71/index.htm
To my understanding, the last flying SR-71 (of the two flying aircraft that were transfered to NASA in 1990) was tail number 17980 (NASA #844).Very cool slideshow, great aircraft. Thanks for sharing!
Don't know if it's true, but I heard as a kid that if the Blackbird was hauling ass as it could, it would take 3 states to turn around and go back the way it came from. That was one hell of a plane. I thought I had read that NASA operated one after the USAF retired them, anyone know if that's still true?
Don't know if it's true, but I heard as a kid that if the Blackbird was hauling ass as it could, it would take 3 states to turn around and go back the way it came from. That was one hell of a plane. I thought I had read that NASA operated one after the USAF retired them, anyone know if that's still true?
The aerodynamicists discovered that the chines generated powerful vortices around themselves, generating much additional lift near the front of the aircraft, leading to surprising improvements in aerodynamic performance.[22] The angle of incidence of the delta wings could then be reduced, allowing for greater stability and less high-speed drag, and more weight (fuel) could be carried, allowing for greater range. Landing speeds were also reduced, since the chines' vortices created turbulent flow over the wings at high angles of attack, making it harder for the wings to stall. (The Blackbird can, consequently, make high-alpha turns to the point where the Blackbird's unique engine air inlets stop ingesting enough air, which can cause the engines to flame out. Blackbird pilots were thus warned not to pull more than 3 g
I've always been fascinated with that bird and the men who designed and flew it.
If you guys are interested and haven't read it, I highly recommend "Skunk Works", by Ben Rich. Great look into that realm.
http://search.barnesandnoble.com/Skunk-Works/Ben-R-Rich/e/9780316743006
Synthetic-aperture radar (SAR) is a form of RADAR in which multiple radar images are processed to yield higher resolution images than would be possible by conventional means. Either a single antenna mounted on a moving platform (such as an airplane or spacecraft) is used to illuminate a target scene or many low-directivity small stationary antennas are scattered over an area near the target area. The many echo waveforms received at the different antenna positions are post-processed to resolve the target. SAR can only be implemented by moving one or more antennas over relatively immobile targets, by placing multiple stationary antennas over a relatively large area, or combinations thereof. SAR has seen wide applications in remote sensing and mapping.
I've always been fascinated with that bird and the men who designed and flew it.
If you guys are interested and haven't read it, I highly recommend "Skunk Works", by Ben Rich. Great look into that realm.
http://search.barnesandnoble.com/Skunk-Works/Ben-R-Rich/e/9780316743006
The SR-71 manual includes the top speed of Mach 3.2 for mission planning purposes (time/distance), however that doesn't mean that it would NOT do Mach 4.0, but probably at a serious tradeoff of "miles per gallon", and for a short amount of time. :cool:
So, I believe it's "functional" top speed was around Mach 3.2.
The REAL secret of the SR-71 was the sensors involved, to include the Synthetic Apperture Radar...that were serious technological advances of the time!
Kelly Johnson was THE MAN! What a SUPER GREAT figure in history!
Two of the A-12's were modified to carry the D-21 ramjet reconnaissance drone on top of the aft fuselage. The 42 foot titanium D-21 drown was powered by a Marquardt RJ43-MA-11 ramjet and was to be launched from the A-12 at Mach 3. Aircraft 940 and 941 were modified to carry the D-21 drone and included a rear cockpit for a second crew member. Once modified to carry the drone, the A-12 aircraft were called the M-12. The back seat crew member (called the Launch Control Officer) was in charge of safely launching the drone from the M-12. Once launched, the Mach 3.35 drone followed a preplanned flight profile with camera ON/OFF points also controlled by the navigation system. The 11,000 pound D-21 drone had a range of around 3,000 nm and could fly as high as 95,000 feet. Following its mission, the drone flew to a point over friendly territory, and its palletized camera unit was ejected and recovered by a modified C-130 aircraft, equipped with a Midair Recovery System (MARS), where it would be taken for processing. As the D-21 continued its descent, it would soon self-destruct by a barometrically activated explosive device.
Yeager's book is great, BTW. Too bad he turned into a douchebag later in life.
What happened? Care to elaborate?
I've seen posts/ reports on various airshow boards where he was a bit of an arrogant prick. One or two I can ignore, but I've seen more than that. Where's there is smoke....
I'll try to dig one or two up.
After further research I have found that Mach 3.2 was pretty much the Maximum "Design" Mach Number, with normal "cruise" operation at Mach 3.17.
Speeds as high as 3.3 were allowed as long as Compressor Inlet temperature restrictions were closely watched. (NTE: 427deg C)
Maximum Altitude Restriction was 85,000ft in Normal Operation, according to the manual...yet I seem to recall reading about a flight that reached 100,000 feet at one time.