SuzanneH Posted June 6, 2021 Report Share Posted June 6, 2021 Bidens planes arriving at Northolt Aerodrome West London yesterday, thought you may be interested. https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DFKqHk8xG1-M&h=AT084rAnvWvLztt29ZE1bDPMKa-EhwWVjjAmxjFBvbP1aDAsikGifK9crMCXh9jxn487Ab4fgJoB_a1ZQP-mWWXrf4-c-1L73TynmlhMmX5KwhRLGIAlEw2PCXuKrrD3HGMn7g&s=1 Quote Link to post Share on other sites
john.r.davies Posted June 6, 2021 Report Share Posted June 6, 2021 Bloody hell! I know he's the POTUS, but while the rest of us worry aoput how we will run our electric cars .... Quote Link to post Share on other sites
Peter Cobbold Posted June 6, 2021 Report Share Posted June 6, 2021 I knew turbofans can generate reverse thrust to assist braking, but here they generate enough (ie more than forward thrust) to reverse the aircraft. Is that special ? Peter Quote Link to post Share on other sites
RogerH Posted June 6, 2021 Report Share Posted June 6, 2021 Hi Peter, yes they can do that. The aircraft wasn;t over heavy. I have not seen that before. They must be careful though as the reverse thrust airstream is heading back towards the engine intake - any rubbish on the runway could easily be sucked up. Also you must ensure that your reverse inhibit switches are working for the Overdrive. Roger Quote Link to post Share on other sites
RobH Posted June 6, 2021 Report Share Posted June 6, 2021 It seems most passenger jet aircraft can taxi backwards but are prohibited on safety grounds - not least because they can't see where they are going (no wing mirrors). Some have problems even when going forwards: Quote Link to post Share on other sites
Mick Forey Posted June 6, 2021 Report Share Posted June 6, 2021 It was quite common practice in the 80s and 90s in the US for commercial aircraft operating into small, ill equipped airports, to use power push-back but they needed wing men to do this safely. I have seen a 757 on power pushback send a train of baggage trucks snaking across the apron, caused lots of shouting and waving. It was in the C17 spec that the aircraft must power itself back up a small incline (5% ??), fully loaded with a Abrams M1 tank. Mick Quote Link to post Share on other sites
Harbottle Posted June 6, 2021 Report Share Posted June 6, 2021 I believe it was the italian air force who first specialized in planes that could go backwards very quickly I'll get my coat. Paul Quote Link to post Share on other sites
john.r.davies Posted June 6, 2021 Report Share Posted June 6, 2021 (edited) 3 hours ago, RobH said: It seems most passenger jet aircraft can taxi backwards but are prohibited on safety grounds - not least because they can't see where they are going (no wing mirrors). Some have problems even when going forwards: What happens on the right hand side of the aircraft, just after impact? Looks as if the pilot throws himself out. And in the original arrival of "Marine One", we see the helicopter, rotor-less, propelling itself across the tarmac, towing a caravn of trollies. How does it do that? Powered wheels?? Edited June 6, 2021 by john.r.davies Quote Link to post Share on other sites
RobH Posted June 6, 2021 Report Share Posted June 6, 2021 15 minutes ago, john.r.davies said: What happens on the right hand side of the aircraft, just after impact? Looks as if the pilot throws himself out. Actually it is a part of the lamp assembly. You can see it depart over the top of the aircraft as the pole drops. Quote Link to post Share on other sites
RogerH Posted June 6, 2021 Report Share Posted June 6, 2021 42 minutes ago, john.r.davies said: What happens on the right hand side of the aircraft, just after impact? Looks as if the pilot throws himself out. And in the original arrival of "Marine One", we see the helicopter, rotor-less, propelling itself across the tarmac, towing a caravn of trollies. How does it do that? Powered wheels?? The pilot has the lefthand seat up front. He probably threw the co-pilot out to get the lamp assembly. Sadly the aircraft are not usually under computer control when on the ground - that may be a good mod' to carry out. Roger Quote Link to post Share on other sites
RogerH Posted June 6, 2021 Report Share Posted June 6, 2021 53 minutes ago, john.r.davies said: What happens on the right hand side of the aircraft, just after impact? Looks as if the pilot throws himself out. And in the original arrival of "Marine One", we see the helicopter, rotor-less, propelling itself across the tarmac, towing a caravn of trollies. How does it do that? Powered wheels?? Hi John, the first buggy in the trolley train is a powered driving unit. It is pushing the helicopter and pulling the other wagons. You can see the driver sitting in the front of it. Roger Quote Link to post Share on other sites
john.r.davies Posted June 6, 2021 Report Share Posted June 6, 2021 Thanks Roger! And Rob! Quote Link to post Share on other sites
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