Dont try this at home kids!

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medEvac
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Dont try this at home kids!

Post by medEvac »

On page 28 of the new Aviation Safety Letter there is a crash synopses of a PA23-250
attempting a single engine take off when he couldnt get the second one going.
subsequently crashing into the trees.

now this is the dumbest thing i have ever heard of!!
its hard enough to taxi some planes on one let alone take off.

but the question is this; is there a multi engine aircraft certified to take off with one of its
engines out? a DC-4 maybe? herc or electra?

I know this seems like a stupid question as an engine out is an emergency,
but maybe there is something produced in the past for the military where its been tested.
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Re: Dont try this at home kids!

Post by Sidebar »

medEvac wrote:the question is this; is there a multi engine aircraft certified to take off with one of its
engines out? a DC-4 maybe? herc or electra?
The C130 has performance charts for 3-engine T/O. A Canadian Forces crew did one in Ethiopia in the late '80s after a birdstrike. The crew's assessment of options was leave the aircraft in place and have it destroyed by fighting between government and rebel forces, or do the 3-engine takeoff.
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brownbear
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Re: Dont try this at home kids!

Post by brownbear »

only four engine aircraft can be ferried with one engine in op. It's a ferry flight though, not a revenue one.

Probably any four engine aircraft has the ability to do this, as long as it's empty. Loose another engine on to on the dead side and things get more fun. Empty weight plus fuel only.
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Lurch
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Re: Dont try this at home kids!

Post by Lurch »

I don't know if it's true but I was told years ago that the Falcon 900 is certified for 2 engine ops.

Lurch
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ez4u2say
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Re: Dont try this at home kids!

Post by ez4u2say »

see following post..has an in depth number of replies on the subject
viewtopic.php?f=54&t=24201
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iflyforpie
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Re: Dont try this at home kids!

Post by iflyforpie »

Lurch wrote:I don't know if it's true but I was told years ago that the Falcon 900 is certified for 2 engine ops.

Lurch
The 727 wasn't certified for two engine ops, but you can do two engine ferries on them...


Having taxied a couple on non-centerline thrust twins on one engine; I can't imagine the effort this took to actually take off....
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Re: Dont try this at home kids!

Post by co-joe »

I heard a KBA crew tried this unsuccessfully many years ago in a double otter, but it was an operative engine they just didn't start on the bet that it would work.
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crazy_aviator
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Re: Dont try this at home kids!

Post by crazy_aviator »

an acquaintance of mine tried to depart muskoka airport many years ago wth a C-337 but without success and ended up in the trees, he is now a retired avionics and corporate pilot and a pretty smart cookie !!
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Meatservo
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Re: Dont try this at home kids!

Post by Meatservo »

Didn't Bob Hoover do this in his Commander or something? Or am I remembering incorrectly? People have done it off and on, the DeHavilland Mosquito was demonstrated with one engine caged, I think. Never heard of anything being certified for it though other than big four engine planes.
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200hr Wonder
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Re: Dont try this at home kids!

Post by 200hr Wonder »

The Lockheed L1011 was certified for 2 engine ferry flights. I know of an AC Crew that did a 2 engine L1011 ferry. If I recall the story correctly it was the right engine that was U/S.
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loopa
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Re: Dont try this at home kids!

Post by loopa »

is there a multi engine aircraft certified to take off with one of its
engines out?
Don't most transport planes? Like the 777, 747? Like would 1 failed engine on the 747 restrict it from take off at mctow? .. Same with the A340?
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Re: Dont try this at home kids!

Post by Liquid Charlie »

Most multi engine aircraft (meaning more than 2) had provision for engine out ferry. NW Orient always ferried their 747's back to MSP for maintenance and one of their check pilots was in the Guinness Book for most engine out time.

I know of a successful single engine T/O with a 748 in Frob many years ago - took off light to start the other engine - returned - fueled and loaded - left the engine running and then went south

Calmair wasn't so lucky in Leaf rapids with the 2 otter -- again -- many years ago.

2 attempt with a cabin class twin - can you say Darwin Awards :rolleyes:
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Siddley Hawker
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Re: Dont try this at home kids!

Post by Siddley Hawker »

I heard a KBA crew tried this unsuccessfully many years ago in a double otter, but it was an operative engine they just didn't start on the bet that it would work.
Another operator did the same thing at Mile 134 on the QNS&L RR a few years back. Try that stuff on a narrow gravel strip, and you just know it'll probably end in tears. Watched a Jetstar go out of here a few years back, on three. Used a lot of runway, but otherwise...
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Hawkeye4077
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Re: Dont try this at home kids!

Post by Hawkeye4077 »

I fly a 337 but I don`t have a Multi-engine rating so I only use the front engine...
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4blue
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Re: Dont try this at home kids!

Post by 4blue »

727 can ferry one engine inop.

Re: Transport Category Jet's 1 engine inop takeoffs.

All transport jets can take off with one engine inop, IF that engine becomes inop AFTER V1 (in theory).
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Lost Lake
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Re: Dont try this at home kids!

Post by Lost Lake »

Hawkeye4077 wrote:I fly a 337 but I don`t have a Multi-engine rating so I only use the front engine...
Just kidding, right?? :roll:
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beaverbob
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Re: Dont try this at home kids!

Post by beaverbob »

Maybe airports should have a circular runway. :prayer: :smt014
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bobm
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Re: Dont try this at home kids!

Post by bobm »

I believe Carl Millard did a single engine T.O. in a Twin Commanche at Pearson when he had the dealership way back when.

Don't think they would allow that today though.
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nimbostratus
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Re: Dont try this at home kids!

Post by nimbostratus »

Lurch wrote:I don't know if it's true but I was told years ago that the Falcon 900 is certified for 2 engine ops.

Lurch

You are correct Lurch. It does require a special permit and is an essential crew only operation.

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Bede
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Re: Dont try this at home kids!

Post by Bede »

I've got an empty RJ airborne on 1 engine in about 6000', flaps 20. That's was the sim though.

I think an MU2 would do it with a prop feathered. I had to shut one down once inflight and we were still climbing at 500 fpm at 180kts.
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bobcaygeon
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Re: Dont try this at home kids!

Post by bobcaygeon »

You can takeoff in an F28 on one engine, with the seats full and one in the jump. (Actually it was stuck at idle but running). It was in this decade.
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Re: Dont try this at home kids!

Post by rigpiggy »

Rockwell did a S/E takeoff and ferry to prove the safety to the FAA for certification purposes

Single Engine Safety

In 1950, when the developers were working to satisfy CAA regulations for certification of the 500, they chose a novel method of demonstrating its single-engine safety and performance: they removed one of the two-bladed propellers, secured it in the aft cabin, and flew from Bethany to Washington D.C. on one engine. There they met with CAA personnel, then replaced the propeller and returned to Oklahoma in the conventional manner. The flight received nationwide coverage in the press.
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Re: Dont try this at home kids!

Post by Hawkeye4077 »

Lost Lake: Yeah i`m kidding... but I`m sure it happened somewhere sometime. I`m sure tho that lightly loaded it would work out just fine.


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Lurch
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Re: Dont try this at home kids!

Post by Lurch »

Hawkeye4077 wrote:Lost Lake: Yeah i`m kidding... but I`m sure it happened somewhere sometime. I`m sure tho that lightly loaded it would work out just fine.


Hawk
I've seen 2 337s taxi up to the HS line with the rear engine failed. :shock:

I called both in before the show could began. I hoped they would have noticed anyway but it's never worth the chance.

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Re: Dont try this at home kids!

Post by 115B »

Turbine Goose demonstrated single engine takeoff from water as a selling point. I believe the Aztec or 310 could do a single engine takeoff from a long enough runway with a skilled pilot IF someone was shooting at them! Skilled and knowledgeable pilot is the key, along with plenty of runway. Not enough runway at Brantford.

Lots of 337's have had problems with rear engine failures when the pilot did not realise the problem. There have been cases where the rear engine was never started, leading to a bad day. Normal procedure is advance the rear throttle first to be certain it is running. Again, maybe a good pilot could do a single engine takeoff with enough runway.

Three and four engine transports used to do engine out ferries. There was a period on the takeoff where you would not survive another engine failure, but it was only a brief period. All transport category aircraft can have an engine failure on takeoff and continue, if that failure is after V1. So twins can take off on one engine if you have enough energy. Light 777 would do it for sure from standng start with enough reason such as someone shooting at you!

Piston airliners did a lot of engine out ferries. There is a picture of a Connie where the failed engine was removed, and also a damaged engine mount and firewall. They put temporary sheet metal on the wing so it looked like a three engine airplane.

Taxiing engine out on twins is no problem with a bit of forward planning; normal ops for taxi in at major carriers, and taxi out when light.
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