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On 1/21/2014 7:16 AM, JohnDeRosa wrote:
A jetliner located in a very odd place. Snip... The questions remain. Why? How? No one seems to have any answers but we haven't visited the location to ask. Too scared to find out? ;-) I had a flashback upon initial glance...a BAC-111! Haven't seen one of those since about high school days in the 1960s. Just to make this thread "soaring legal" (undetectably dry humor there?), I believe it was the BAC-111 design that led to the awareness - and ultimately, acceptable understanding - of the "deep stall" with a T-tail effect. The prototype of the BAC-111 was destroyed during flight test in a crash attributed to deep stall. Later, NASA (including one Einar Enevoldsen of today's Perlan effort) did their own deep stall investigative series using a modified Schweizer 1-36/"Sprite" (article available in online "Soaring" mag archive). I've read (somewhere) that Hawker-Siddeley (formerly Hawker, later formerly many others, later later British Aerospace) gave their BAC-111-based deep stall investigative data to (then) Douglas, which enabled Douglas to considerably shorten the development time of the DC-9. If true, yet another instance of cross-fertilization within the international aerodynamic community... Bob - 2/3 of winter to go in the northern hemisphere - W. |
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On Tuesday, January 21, 2014 9:46:56 AM UTC-8, Bob Whelan wrote:
On 1/21/2014 7:16 AM, JohnDeRosa wrote: A jetliner located in a very odd place. Snip... The questions remain. Why? How? No one seems to have any answers but we haven't visited the location to ask. Too scared to find out? ;-) I had a flashback upon initial glance...a BAC-111! Haven't seen one of those since about high school days in the 1960s. Just to make this thread "soaring legal" (undetectably dry humor there?), I believe it was the BAC-111 design that led to the awareness - and ultimately, acceptable understanding - of the "deep stall" with a T-tail effect. The prototype of the BAC-111 was destroyed during flight test in a crash attributed to deep stall. Later, NASA (including one Einar Enevoldsen of today's Perlan effort) did their own deep stall investigative series using a modified Schweizer 1-36/"Sprite" (article available in online "Soaring" mag archive). I've read (somewhere) that Hawker-Siddeley (formerly Hawker, later formerly many others, later later British Aerospace) gave their BAC-111-based deep stall investigative data to (then) Douglas, which enabled Douglas to considerably shorten the development time of the DC-9. If true, yet another instance of cross-fertilization within the international aerodynamic community... Bob - 2/3 of winter to go in the northern hemisphere - W. Another interesting photo on Google Maps. At the following URL, is a satellite photo of the launch grid at the Region 8 Championships at Ephrata, Washington, USA. I believe the photo was taken on July 3, 2013 around noon (the pool is set up). http://goo.gl/maps/OAgjJ or https://maps.google.com/?ll=47.31275...06073&t=h&z=18 |
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