Topic Author
Posts: 4224
Joined: Sat May 22, 1999 3:49 am

What? A Five Engine Plane?

Tue Jul 06, 1999 2:49 am

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.
CV990, the Maserati of the skies!

RE: What? A Five Engine Plane?

Tue Jul 06, 1999 3:45 am

Well, Boeing did test a modified 707 with a rear-mounted engine as a precursor to the 727.
king air
Posts: 103
Joined: Fri May 28, 1999 8:38 am

RE: What? A Five Engine Plane?

Tue Jul 06, 1999 4:16 am

An A.P.U. would add another engine. It may be smaller but it is sill an engine
Posts: 549
Joined: Thu May 20, 1999 7:16 am

RE: What? A Five Engine Plane?

Tue Jul 06, 1999 5:58 am

If an apu is another engin:
would the plane move when it was/is turnned on?
Posts: 3612
Joined: Mon May 31, 1999 4:44 am

To Davidd0

Tue Jul 06, 1999 6:13 am

Do you know were can I see a photo of that 707 with a rear-mounted engine? I would love to see it, thanks.

Luis, Faro, Portugal
Posts: 125
Joined: Tue May 18, 1999 4:50 am

To Mirage

Tue Jul 06, 1999 6:27 pm

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!

Posts: 1066
Joined: Fri Mar 16, 2007 1:29 pm

RE: What? A SIX Engine Plane?

Thu Jul 08, 1999 2:09 am

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!
Topic Author
Posts: 4224
Joined: Sat May 22, 1999 3:49 am

RE: What? A SIX Engine Plane?

Thu Jul 08, 1999 2:35 am

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!
CV990, the Maserati of the skies!
Posts: 6915
Joined: Mon May 24, 1999 4:47 am

RE: What? A Five Engine Plane?

Thu Jul 08, 1999 3:03 am

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.

Posts: 1962
Joined: Tue May 18, 1999 8:32 am

Be Nice Now

Thu Jul 08, 1999 10:23 am

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
Posts: 103
Joined: Fri May 28, 1999 8:38 am

RE: Twa 747-100

Thu Jul 08, 1999 12:04 pm

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.
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: Twa 747-100

Thu Jul 08, 1999 12:21 pm

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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