Posted by Grurray on 3rd February 2016 (All posts by Grurray)
Some things I’ve been perusing lately concerning aeronautics and aerospace
Flying wing designs gained some credence in the 1950s, mostly due to the efforts of Jack Northrop, who had been inspired by seeing some of the Horten’s sports gliders in the 1930s. The captured Ho 229 may also have encouraged him. Northrop’s unsuccessful YB-35 flying wing bomber design of the late 1940s, was hamstrung by massive vibration problems caused by the propeller-driven engines, showing that the Hortens were right to have used jets in the Ho 229. Northrop’s later jet-propelled YB-49 design used jet engines, and while it never went into service, it paved the way for the company’s B-2 Spirit stealth bomber decades later, a design which certainly shares some physical similarities with the Ho 229.
Out of 4,063 pilots, not a single airman fit within the average range on all 10 dimensions. One pilot might have a longer-than-average arm length, but a shorter-than-average leg length. Another pilot might have a big chest but small hips. Even more astonishing, Daniels discovered that if you picked out just three of the ten dimensions of size — say, neck circumference, thigh circumference and wrist circumference — less than 3.5 per cent of pilots would be average sized on all three dimensions. Daniels’s findings were clear and incontrovertible. There was no such thing as an average pilot. If you’ve designed a cockpit to fit the average pilot, you’ve actually designed it to fit no one.
It’s a striking about-face from just a couple years ago when they were saying the A-10 was obsolete. Then again, they’ve been saying that for 30 years. The obsolescence of close air support in general has always been just around the corner for the past 70 years. Since now the A-10 won’t be allowed to phase out completely until a CAS replacement is ready, we need to start planning for the Warthog 2.0
According to Sprey, the A-10 is by far the most survivable aircraft for the low-altitude, low-speed CAS mission. But almost every aspect of the A-10 can be vastly improved using modern materials and construction techniques. However, The key to producing a new warplane quickly, on time and to budget is to use the best existing technology rather than trying to invent entirely new hardware and software.
As with every other task involved with the rescue, there was no room for error, and there would be no second chances. Atlantis would be launched with an all-veteran crew, with selection for the mission biased heavily toward astronauts who demonstrated fast adaptation to microgravity (there was no time to be space-sick) and high aptitude at EVA and rendezvous. The report names no names, but it does indicate that an assessment revealed a pool of nine EVA candidates, seven command candidates, and seven pilot candidates available in January 2003 whom NASA felt could have undertaken the mission.
Which brings us to one of the all time great movies about the space program
You’re damn right they are! Know what they accomplished living up there in a tin can for five months? Because of men like these, we’ve taken the first step off this little planet. The moon trip was a walk around the block. We’re going to the stars, to other worlds, other civilizations. Men will be killed in this effort just as they’re killed in cars and airplanes……and bars and…