BOAC Stratocruisers across the Atlantic
DH106,the reason that older,straight-wing a/c had a `nose-down ` attitude on approach is that at slower approach speeds ,the flaps are extended,Fowler flaps which move back and down,effectively increasing wing area,This has the effect of moving the aerodynamic `Centre of Pressure`(total LIFT) back,resulting in a `nose down trim..
Modern jets are the same,except that swept wing aircraft also have `leading-edge` flaps/slats/slots,which offset the CoP`s aft movement,and change the approach attitude to more `nose-up`..
Modern jets are the same,except that swept wing aircraft also have `leading-edge` flaps/slats/slots,which offset the CoP`s aft movement,and change the approach attitude to more `nose-up`..
DH106,the reason that older,straight-wing a/c had a `nose-down ` attitude on approach is that at slower approach speeds ,the flaps are extended,Fowler flaps which move back and down,effectively increasing wing area,This has the effect of moving the aerodynamic `Centre of Pressure`(total LIFT) back,resulting in a `nose down trim..
Modern jets are the same,except that swept wing aircraft also have `leading-edge` flaps/slats/slots,which offset the CoP`s aft movement,and change the approach attitude to more `nose-up`..
Modern jets are the same,except that swept wing aircraft also have `leading-edge` flaps/slats/slots,which offset the CoP`s aft movement,and change the approach attitude to more `nose-up`..
Last edited by DH106; 7th Aug 2023 at 15:03.
The same photo was confirmed on an earlier thread, by the photographer, as Heathrow.
Heathrow Engineering Hangars
Heathrow Engineering Hangars
If you look at google maps of the BA engineering base you can still see the twin rail tracks set into the concrete on which the trolley supporting the aircraft ran, they are visible in Megan's Strat picture. Where that hangar was located and the apron is now a car park, its between the building marked as Vanguard House and the British Airways Global Learning Academy. Back in the mid 70's those hangars were used for the storage of unserviceable aircraft components.
If you look at google maps of the BA engineering base you can still see the twin rail tracks set into the concrete on which the trolley supporting the aircraft ran, they are visible in Megan's Strat picture. Where that hangar was located and the apron is now a car park, its between the building marked as Vanguard House and the British Airways Global Learning Academy. Back in the mid 70's those hangars were used for the storage of unserviceable aircraft components.
In early '65, just after I joined my first Squadron at St Mawgan, I found myself the junior member of a Board of Inquiry into an accident involving the "skates" used to move Mk. 2 Shackletons sideways into hangars. There was not enough room in the hangar to use a tow bar to move the aircraft off the skates once in was inside. A tractor was hitched to one main undercarriage leg with a chain, to pull it off. As it came off the skates it naturally rolled forward, at which point the airman in the cockpit was supposed to apply the brakes. In this case the aircraft did not stop, the propellers hit the back of the tractor, and the tractor driver bailed out just in time to avoid being crushed against the steering wheel. Bent props, shock loaded engine and a damaged tractor.
No-one had checked that the brake pressure was sufficient.
No-one had checked that the brake pressure was sufficient.
Are you sure that is Heathrow
More Speedbird Strats
Last edited by megan; 8th Aug 2023 at 02:20.
Psychophysiological entity
This for me is perhaps the most memorable UFO encounter in my lifetime. I've seen the skipper interviewed on IIRC, Pathe news. This mag doesn't look too scientific, but it was reported across the spectrum of news.
PROJECT 1947 - BOAC's FLYING JELLYFISH - FATE MAGAZINE, NOVEMBER, 1954
PROJECT 1947 - BOAC's FLYING JELLYFISH - FATE MAGAZINE, NOVEMBER, 1954
