Krocken var för mer än 30 år sedan och det andra flygplanet ser ut så här framifrån:
MVH
Hans
Quiz: Efterkrigstiden
Nej, nu ger jag upp...
April 30th, 1966.
Al White and Joe Cotton prepared to take AV/2 past the final hurdle to having "unlimited" status for Mach 3 flight -- a 30+ minute run at Mach 3 to fully heatsoak all systems. Shortly after takeoff, Cotton retracted the landing gear. The nose gear jammed into its door, and as good as things had been going, they were going bad now. The attempt to lower the gear using the normal hydraulic system failed. Trying the backup electrical system, Cotton heard a "pop" as THAT system went dead. Given the Valkyrie's long, graceful neck, and the intake design, retracting the main gear and landing on her belly wasn't possible -- in fact, it was so impossible that North American had never attemped to simulate it!
White first brought the XB-70 around for a touch-and-go, hoping that a hard impact on the main gear would knock the nose gear loose and let it fall to the extended position. Even after a second try, however, the nose gear remained jammed. At this point, bailing out and losing the aircraft was quickly becoming the only option.
But there was fuel to burn away in any case, so while people on the ground pulled out plans and diagrams, White and Cotton circled around Edwards slowly but surely. Finally, Cotton was sent to the back of the cockpit to open service panels and check on things for the people below. After more than an hour of this (and 2 hours of flying), the problem with the backup system was traced -- hopefully -- to a circuit breaker. Now all Cotton had to do was find a way to short circuit the unit by closing two contacts. Of course, the Valkyrie had no on-board toolkit -- that would have made things too simple. But Cotton HAD brought along his briefcase with his various notes and plans, and opening it, he found a good, thick paperclip (actually, it was part of a legal-style paperclip, not a conventional one) . [Ed. note Now that I've had to opportunity to see the cockpit of the B-70, -- and the small crawl space that Joe Cotton had to go through in a full pressure suit, all I can say is "wow!"] Straightening out the paperclip, then grasping the middle of it with a leather glove, Cotton carefully reached in and ZAP! short circuited the breaker. As Al White hit the switch to extend the gear, and was rewarded with the sound of a working backup system, Cotton gratefully dropped into his seat. As several newspapers exclaimed the following day, a "39 cent paperclip saves $750 million aircraft
http://www.labiker.org/xb70.html
Den som känner sig manad får ställa nästa civila fråga.
MVH
Hans
edit-det verkar försvinna inlägg här, stämmer det?
April 30th, 1966.
Al White and Joe Cotton prepared to take AV/2 past the final hurdle to having "unlimited" status for Mach 3 flight -- a 30+ minute run at Mach 3 to fully heatsoak all systems. Shortly after takeoff, Cotton retracted the landing gear. The nose gear jammed into its door, and as good as things had been going, they were going bad now. The attempt to lower the gear using the normal hydraulic system failed. Trying the backup electrical system, Cotton heard a "pop" as THAT system went dead. Given the Valkyrie's long, graceful neck, and the intake design, retracting the main gear and landing on her belly wasn't possible -- in fact, it was so impossible that North American had never attemped to simulate it!
White first brought the XB-70 around for a touch-and-go, hoping that a hard impact on the main gear would knock the nose gear loose and let it fall to the extended position. Even after a second try, however, the nose gear remained jammed. At this point, bailing out and losing the aircraft was quickly becoming the only option.
But there was fuel to burn away in any case, so while people on the ground pulled out plans and diagrams, White and Cotton circled around Edwards slowly but surely. Finally, Cotton was sent to the back of the cockpit to open service panels and check on things for the people below. After more than an hour of this (and 2 hours of flying), the problem with the backup system was traced -- hopefully -- to a circuit breaker. Now all Cotton had to do was find a way to short circuit the unit by closing two contacts. Of course, the Valkyrie had no on-board toolkit -- that would have made things too simple. But Cotton HAD brought along his briefcase with his various notes and plans, and opening it, he found a good, thick paperclip (actually, it was part of a legal-style paperclip, not a conventional one) . [Ed. note Now that I've had to opportunity to see the cockpit of the B-70, -- and the small crawl space that Joe Cotton had to go through in a full pressure suit, all I can say is "wow!"] Straightening out the paperclip, then grasping the middle of it with a leather glove, Cotton carefully reached in and ZAP! short circuited the breaker. As Al White hit the switch to extend the gear, and was rewarded with the sound of a working backup system, Cotton gratefully dropped into his seat. As several newspapers exclaimed the following day, a "39 cent paperclip saves $750 million aircraft
http://www.labiker.org/xb70.html
Den som känner sig manad får ställa nästa civila fråga.
MVH
Hans
edit-det verkar försvinna inlägg här, stämmer det?
- Bilagor
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- xb70.jpeg (12.85 KiB) Visad 2298 gånger
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Rubber Duck
- Medlem
- Inlägg: 458
- Blev medlem: 23 juli 2003, 14:01
- Ort: Sollentuna
Vem minns inte bilden av den fete Hasse Ericsson på semester i Spanien. Inte okontroversiellt under Franco-tiden.
Nåja, vi har ju alla våra specialintressen, vilket återspeglas i detta quiz: Flygplan, fackpampar mm. Mitt intresse ligger lite längre bak i tiden, vilket visas av denna fråga:
Det brittiska kungahuset är av tyskt ursprung, men bytte opportunistiskt nog namn under det första världskriget. Från vad till vad?
Bonusfråga: Drottning Elisabeths man prins Philip tillhör på mödernet en familj med tyskt ursprung som också bytte namn under det första världskriget. Från vad till vad?
Nåja, vi har ju alla våra specialintressen, vilket återspeglas i detta quiz: Flygplan, fackpampar mm. Mitt intresse ligger lite längre bak i tiden, vilket visas av denna fråga:
Det brittiska kungahuset är av tyskt ursprung, men bytte opportunistiskt nog namn under det första världskriget. Från vad till vad?
Bonusfråga: Drottning Elisabeths man prins Philip tillhör på mödernet en familj med tyskt ursprung som också bytte namn under det första världskriget. Från vad till vad?
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Mathias Forsberg
- Medlem
- Inlägg: 2986
- Blev medlem: 28 mars 2002, 15:09
- Ort: Stockholm
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Rubber Duck
- Medlem
- Inlägg: 458
- Blev medlem: 23 juli 2003, 14:01
- Ort: Sollentuna
-
Gutekrigaren
- Medlem
- Inlägg: 4120
- Blev medlem: 23 mars 2002, 19:38
- Ort: Rom
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Rubber Duck
- Medlem
- Inlägg: 458
- Blev medlem: 23 juli 2003, 14:01
- Ort: Sollentuna
Sachsen-Coburg-Gotha (eller Saxe-Coburg) är rätt. Den ätten kom på tronen genom drottning Victorias gemål prins Albert av Sachsen-Coburg-Gotha. Victoria var däremot av huset Hannover.
Ett rätt vardera till Gutekrigaren och Mathas F. Bonusfrågan får avgöra. En ledtråd: Prins Philips morbror var den siste vicekungen av Indien.
Ett rätt vardera till Gutekrigaren och Mathas F. Bonusfrågan får avgöra. En ledtråd: Prins Philips morbror var den siste vicekungen av Indien.
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Gutekrigaren
- Medlem
- Inlägg: 4120
- Blev medlem: 23 mars 2002, 19:38
- Ort: Rom
-
Gutekrigaren
- Medlem
- Inlägg: 4120
- Blev medlem: 23 mars 2002, 19:38
- Ort: Rom
