Cptkrell From United States of America, joined Sep 2001, 2861 posts, RR: 13 Posted (10 years 2 months 2 weeks 6 days 22 hours ago) and read 1462 times:
I just watched an interesting (but I think, questionable) presentation on the TV Travel Channel where it is proposed that a "conventional 747 jetliner could *easily* tow a 1-million pound commercial space vehicle to 20,000 feet and release it". Then the space vehicle would accelerate to give the passengers an around the world sightseeing flight at supposedly near Shuttle altitudes.
I don't have my calculator handy, and even if I did, I don't think I could figure this out, but, on surface it seems to me it would be stretching feasibility to tow one million lbs from rotate to 20,000 feet? Isn't the MTOW of the "greatest" 74 right at about a million lbs? Am I missing something here, or is this just another TV program? ...Jack
Cptkrell From United States of America, joined Sep 2001, 2861 posts, RR: 13 Reply 2, posted (10 years 2 months 2 weeks 6 days 21 hours ago) and read 1453 times:
It was seemingly a pretty well produced piece with good computer graphics, etc., USAFHummer, however, I was in the midst of attending to some time-sensitive chemical stuff and only observed what I posted. I'm sure it will be re-aired, but I was curious about the claims and wondered if anyone else had heard of such...Jack
Shenzhen From United States of America, joined Jun 2003, 1706 posts, RR: 2 Reply 3, posted (10 years 2 months 2 weeks 6 days 21 hours ago) and read 1453 times:
It is much easier to "tow" a load then to carry one. Just think of yourself as towing/pullng a wagon with 1000 pounds on it, or trying to carry it. Feasible, sure it you have a runway that will provide the length for the airspeed to get the "spaceship" in the air
I saw something very similar to what you saw, but it was a F4 fighter towing a 3 seater to 40 feet, releasing and then it firing some onboard rockets to get to space. However, the 3 seater didn't orbit the earth, just up and back down.
Pmk From United States of America, joined May 1999, 664 posts, RR: 2 Reply 5, posted (10 years 2 months 2 weeks 6 days 7 hours ago) and read 1366 times:
Well on the show they showed NASA video of what looked like a C141 towing an F4 with what appeared to be great ease. To be honest, I can see it working. Whethere the space thing would work who knows, but I'm sure a 7474 could carry quite a load by towing it.
Markyboy From United Kingdom, joined Sep 2003, 207 posts, RR: 0 Reply 6, posted (10 years 2 months 2 weeks 6 days 5 hours ago) and read 1332 times:
I think I may have the answer to your question. I watched the same show I believe a while back on Discovery Wings. The program was British and the million pounds relates to the cost of the space vehicle (£1,000,000) as opposed to the weight 1,000,000 lbs.
I may be wrong, it happened once before!
P.S. This is my 1st post to the airliners.net forum ever. I have been a reader of the forums for a couple of years now as well as an admirer of the fine photography. Just took me till now to get the wallet out and pay to post!
Aaron atp From United States of America, joined Mar 2000, 533 posts, RR: 2 Reply 13, posted (10 years 2 months 2 weeks 5 days 6 hours ago) and read 1163 times:
Actually, someone pulled that picture off my website and asked a question about it on this forum about 2 years ago.
The gentlemen at the Delta TOC were unable to overhaul 2037s fast enough, so there were always quite a few 757 'gliders' as we called them (aircraft without engines) in front of the big hangar and the paint hangar in atlanta.
I assure you that DL had no plans of such a thing (although they probably would have if they thought the FAA would have let them).
Cptkrell From United States of America, joined Sep 2001, 2861 posts, RR: 13 Reply 14, posted (10 years 2 months 2 weeks 5 days 1 hour ago) and read 1123 times:
The DAL 757 glider pic is cool (for intended ops chuckles), however, now that I recall, DC3 gliders were at least experimented with during WWII with engines removed and cowlings aerodynamically fared over with blunt, bullet-nose profiles...Jack