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Pratt & Whitney Canada 5-engined Boeing 747SP spotted on Apron @ YMX

送信時刻：丁度一年（虎舞流ｗ）前

Video shot by Air-Clips.com showing a glimpse of the P&W Canada 5 engined 747SP testbed. Also a favorite, taxing Nolinor B737-200 gravel runner (www.fliegerfaust.com) さらに...

djames225

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SmokedChops 丁度一年（虎舞流ｗ）前 10

That is how they test the smaller fans. I believe GE has done one as well, an old B742 if I recall. Add one small nacelle, and all of the appropriate instrumentation, and hey-presto, an instant moving test stand.

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Robert Cowling 丁度一年（虎舞流ｗ）前 5

That looks so odd...

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K Mac 丁度一年（虎舞流ｗ）前 5

We did things similar when I worked at Cessna in the experimental flight dept. During Citation Mustang testing, we had the little PW615 engines on the RH pylon of our CJ2. Looked funny, but worked for testing. PW on one side, Williams on the other.

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Reuben Smith 丁度一年（虎舞流ｗ）前 3

Got any cool pictures from your work there?

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Chris Muncy 丁度一年（虎舞流ｗ）前 4

That 74 should see a doc about that abnormal growth :p. But seriously, it is an interesting way to test engines.

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Ric Wernicke 丁度一年（虎舞流ｗ）前 4

I bet it makes snappy left turns.

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Leander Williams 丁度一年（虎舞流ｗ）前 1

I cannot remember the last time I saw an SP

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Toby Sharp 丁度一年（虎舞流ｗ）前 1

Honeywell has a 757 they use for engine testing, they attach engines in the same manner. Sometimes even turbo props! talk about strange looking.

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william baker 丁度一年（虎舞流ｗ）前 1

Has anyone else seen that most engine test beds are made out of the Boeing 747 including the A380 engine if im not mistaken.

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djames225 丁度一年（虎舞流ｗ）前 1

Both GE and Rolls-Royce use the B747..RR just acquired a second unit at the end of 2019, a B744 ex Quantas unit. It should be testbed ready end of 2021. I believe it is because the way the wing on the port side is configured structurally.
The oddest testbed I have seen thou, was P&W Canada's B720 "Red" The nose was elongated, Pitot tubes repositioned then a PW150 turboprop mounted on the nose to test

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william baker 丁度一年（虎舞流ｗ）前 1

For a second there i thought you were rapidwolve you both have the same wolf pic lol. The left wing on the 747 has the capablilites to haul a 5th spare engine. I believe its beefed up to handle that weight of another engine and thats why they use the 747 because I dont think I have seen any test engines outside of the number 2 spot.

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djames225 丁度一年（虎舞流ｗ）前 1

I am..changed my name due to flack..yes..structural supports allow for a 5th pylon OR larger engine in place of #2.
Take a look at the article here..P&W Canada are not using #2 spot, and if you get a chance, check out P&W Canada's, now retired, B720

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william baker 丁度一年（虎舞流ｗ）前 1

They are using the area right around the right hand upper deck exit door if im not mistaken. I will look up the B720 for sure.

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David Elliston 丁度一年（虎舞流ｗ）前 0

There is no "u" in Qantas!

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Reini Grauer 丁度一年（虎舞流ｗ）前 1

Does anyone know what the device is behind the nose wheels on the 737-200?

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John Boudreau 丁度一年（虎舞流ｗ）前 3

gravel defector
http://www.b737.org.uk/unpavedstripkit.htm

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Don Whyte 丁度一年（虎舞流ｗ）前 2

deflector

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David Ingram 丁度一年（虎舞流ｗ）前 1

Unique option that works and is no longer available. They will likely keep them flying forever.

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djames225 丁度一年（虎舞流ｗ）前 1

Got another unit in 2018 that was converted in Mirabel.

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Bob Myers 丁度一年（虎舞流ｗ）前 1

I have to assume that P&W did their homework on this, but can someone explain to me how this is the optimum location for the "5th engine"? I understand that this is an engine test bed, but that location seems unnecessarily inaccessible.

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tomasz dabrowski 丁度一年（虎舞流ｗ）前 1

Rolls Royce has a 747 that is just like this, though the 5th engine is on the other side. GE puts a third engine under the wing on their 747. Like Scott said this puts the engine in clean air, shows the performance on a wing with only one engine, and can be structurally secured in the cabin.

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ReverendLee 丁度一年（虎舞流ｗ）前 1

My guess would be that it's the best place to put it because it is out of the way of any disturbances. Forward and high enough that it's riding in clean air.

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Tink Tank 丁度一年（虎舞流ｗ）前 1

That 747 needs an appointment with Dr. Pimple Popper!

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chugheset 丁度一年（虎舞流ｗ）前 0

Actually that extra engine is what they use when the upper deck separates from the balance of the aircraft like on Star Trek. Of course its only used in emergencies like a Romulan attack.

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a1brainiac 丁度一年（虎舞流ｗ）前 0

Weirdest configuration ever

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Leander Williams 丁度一年（虎舞流ｗ）前 0

One would think that the aircraft would need a portside counterweight to balance the extra starboard weight.

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Pratt & Whitney Canada 5-engined Boeing 747SP spotted on Apron @ YMX

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