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multi engine ultralight trainers



 
 
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  #1  
Old December 31st 03, 11:37 PM
jic
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Default multi engine ultralight trainers

Why are there no multi engine ultralight trainers?
I have about twenty hours behind a 912 and two forced landings already.
It sure would be nice not depending on a single powerplant.
Are two 40 hp engines unable to do the work of a 80hp?



  #2  
Old January 1st 04, 05:42 PM
Ron Natalie
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"jic" wrote in message news:Y4JIb.106419$ss5.61293@clgrps13...
Why are there no multi engine ultralight trainers?
I have about twenty hours behind a 912 and two forced landings already.
It sure would be nice not depending on a single powerplant.
Are two 40 hp engines unable to do the work of a 80hp?

The question is will the aircraft fly on one 40HP engine when it really
requires 80HP. Most ultralights don't have much excess power.
The second engine, as they say, takes you to the scene of the crash.

  #3  
Old January 1st 04, 07:10 PM
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On 1-Jan-2004, "Ron Natalie" wrote:

I have about twenty hours behind a 912 and two forced landings already.
It sure would be nice not depending on a single powerplant.
Are two 40 hp engines unable to do the work of a 80hp?

The question is will the aircraft fly on one 40HP engine when it really
requires 80HP. Most ultralights don't have much excess power.
The second engine, as they say, takes you to the scene of the crash.



This is particularly true if the propellers cannot be feathered. The drag
of a windmilling prop driving a dead engine is enough to bring down even
high performance twins.
--
-Elliott Drucker
  #4  
Old January 1st 04, 08:38 PM
Fitzair4
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I have about twenty hours behind a 912 and two forced landings already.

You need to find a good mechanic and a pilot in command, to fly it.

Larry
  #5  
Old January 1st 04, 10:07 PM
jic
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It's a rental.

"Fitzair4" wrote in message
...
I have about twenty hours behind a 912 and two forced landings already.

You need to find a good mechanic and a pilot in command, to fly it.

Larry



  #6  
Old January 1st 04, 10:14 PM
Dave Hyde
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jic wrote:

It's a rental.


Words that strike fear into the hearts of my fellow
travelers :-)

Dave 'they're number one, they'll find it' Hyde

  #7  
Old January 2nd 04, 03:38 AM
Skyking
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"jic" wrote in message news:Y4JIb.106419$ss5.61293@clgrps13...
Why are there no multi engine ultralight trainers?
I have about twenty hours behind a 912 and two forced landings already.
It sure would be nice not depending on a single powerplant.
Are two 40 hp engines unable to do the work of a 80hp?



FACT: Most multi engine airplanes lose 70% performance when they lose
an engine.

Skyking
  #8  
Old January 2nd 04, 05:12 PM
Kyler Laird
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(Skyking) writes:

FACT: Most multi engine airplanes lose 70% performance when they lose
an engine.


FACT: All single-engine airplanes lose 100% performance when they lose
an engine.

Here are some more facts for any poor sod who wanders in to r.a.h
expecting to see useful information...

A typical light twin typically holds altitude quite sufficiently on a
single engine.
http://www.aopa.org/members/files/pi.../prof0305.html
(AOPA members only)

A feathering prop is not required for adequate single engine performance
in a very light plane. The Leza AirCam is said to be able to take off
on one engine. (I'd provide a reference but their Web site is useless.)

A typically-loaded (for me) light twin can take off, circle the pattern
and land with one engine at idle (similar to windmilling) and the gear
hanging out.

There's a sweet-looking very light multi-engine plane for sale right
now.
http://www.aircam3.com/
I want one.

--kyler
  #9  
Old January 2nd 04, 05:20 PM
Ron Natalie
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"Kyler Laird" wrote in message ...

A typical light twin typically holds altitude quite sufficiently on a
single engine.


We weren't talking about typical light twins, we were talking about ultralights.

A feathering prop is not required for adequate single engine performance
in a very light plane. The Leza AirCam is said to be able to take off
on one engine. (I'd provide a reference but their Web site is useless.)

The aircam is hardly typical. The thing has exceptional power, 200 HP in
a 1000 lb aircraft and the engines are mounted as close to the centerline as
they could get.

  #10  
Old January 2nd 04, 05:26 PM
Ron Natalie
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"Kyler Laird" wrote in message ...
]

A typical light twin typically holds altitude quite sufficiently on a
single engine.
http://www.aopa.org/members/files/pi.../prof0305.html
(AOPA members only)


For those who can't read that, it's a Barry Schiff articled talking about
flying a Seminole with a SE service ceiling of a bit over 4000'. Of course
he is talking about a feathered and otherwise cleaned up twin, and his
conclusion is NOT that you hold altitude sufficiently, but that the rate
of descent is manageable.

 




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