CV990 From , joined Dec 1969, posts, RR: Posted (13 years 10 months 3 weeks 2 days 13 hours ago) and read 699 times:
Yes, that's true. During my "hot" years of spotting I recall seeing at least in two occasions planes flying with 5 engines. Of course 4 of them were running and one was "taking a lift" but even though, its a drammatic view. My first one was in the beggining of TAP 747 operations to Africa, I remember looking to the Jumbo and see that he had a fifth engine between engine nr. 2 and the wing root. Also when TAP sold their 707, CS-TBA left Lisbon to USA with a fifth engine too. That plane was sold latter o US Air Force.
King air From United States of America, joined May 1999, 107 posts, RR: 0 Reply 2, posted (13 years 10 months 3 weeks 2 days 11 hours ago) and read 701 times:
An A.P.U. would add another engine. It may be smaller but it is sill an engine
Twa747100 From United States of America, joined May 1999, 600 posts, RR: 0 Reply 3, posted (13 years 10 months 3 weeks 2 days 9 hours ago) and read 702 times:
If an apu is another engin:
would the plane move when it was/is turnned on?
Antti From Finland, joined May 1999, 90 posts, RR: 0 Reply 5, posted (13 years 10 months 3 weeks 1 day 21 hours ago) and read 699 times:
It was "Dash 80", the 707 prototype flying with a fifth engine in the tail. I recall seeing a picture in some magazine, but I´m sure you´ll find one in some 707 book!
Buff From Australia, joined Mar 2007, 0 posts, RR: 2 Reply 6, posted (13 years 10 months 3 weeks 13 hours ago) and read 704 times:
Mriya. The Antonov 225. 1M lbs GTOW. Designed to carry Russian space shuttle. Similar to C-5 but with 3 main turbofans on each wing, and a severlely augmented empennage. Saw it in CYQB about 8 years ago. We were at 10,000' on an overflight, and it was still HUGE on the taxiway where it was parked during their airshow.
And it probably had additionally at least one APU!
CV990 From , joined Dec 1969, posts, RR: Reply 7, posted (13 years 10 months 3 weeks 13 hours ago) and read 702 times:
Dear friend Buff.
Of course I know that the AN-225 have 6 engines, look that's not the kind of answer I want from you, I also know that the B-52 has 8 engines and the B-36 had 10 engines ok? if you remember seeing at any time a FIVE engines aircraft. I explain better, you probably know that most of 4 engine airliners used to have a place were they could put a spare engine and fly it everywhere, like the 707, the DC-8, the 747. Next time pay attention to the topic and give correct answers.
Take care!
DeltAirlines From United States of America, joined May 1999, 8771 posts, RR: 13 Reply 8, posted (13 years 10 months 3 weeks 12 hours ago) and read 699 times:
I remember Pan Am having a 747-100 with 5 engines, being called something that involved the sea. By the way B52 bombers have 8 engines, in case you didnt know.
Hmmmm... From Canada, joined May 1999, 2088 posts, RR: 5 Reply 9, posted (13 years 10 months 3 weeks 5 hours ago) and read 699 times:
CV990, you didn't ask a question in your post, you simply mentioned that you saw a 747 with a spare engine, which you have since admitted is an observation of which most other spotters are aware. How can you berate Buff for not supplying a correct answer when you never asked a question?
An optimist robs himself of the joy of being pleasantly surprised
King air From United States of America, joined May 1999, 107 posts, RR: 0 Reply 10, posted (13 years 10 months 3 weeks 3 hours ago) and read 701 times:
The APU doesn't move the air craft because it is hooked to a gear box like a turbo prop. It doesn't produce thrust.
L-188 From United States of America, joined Jul 1999, 29350 posts, RR: 62 Reply 11, posted (13 years 10 months 3 weeks 3 hours ago) and read 700 times:
King Air is correct about the apu not producing thrust in most aircraft.
But.... Boeing a while back was studying the possibility of useing the APU to provide some extra thrust during takeoff. They where talking about using it on streched 747's and 777's.
There is a precedent for this. Some of the Anotov twins, such as the AN-24 have a turbojet located in the righthand engine cell. The pilot can turn the engine to to provide some extra boost for takeoff. I belive that it can provide ground power but please don't hold me to that.
Are there any AN drivers out there that can confirm that??
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