Why didn't the Cessna 337 make it?

"Dylan Smith" wrote in message
...
[...]
The people who are liable to VMC roll a conventional twin are probably
the same people who will stall a 337 while taking their time over trying
to figure out which engine has quit.

I don't see how this is an issue. With centerline thrust, the pilot
shouldn't NEED to know which engine has quit. The primary reason for
knowing which engine has quit in a convential twin is so you can use the
correct control inputs. With centerline thrust, you just keep flying the
airplane. Why would any pilot spend any time trying to figure out which
engine has quit on a 337? What are they going to do with that information,
at least in the immediate sense?

Pete

I have been thinking that it would be cool to refit an old 337 with
twin jet engines mounted in place of the rear engine with snorkles for
the intakes and a nose extension fairing in place of the front engine
for drag reduction and CG adjustment. Given the advances in small jet
engines in recent years, this might be feasible. Imagine the rate of
climb you would get. You could run the throttles at a modest setting
for cruise.

There is an experimental aircraft for you!

Dean

Dallas wrote:
Looking at the design of the C377, it seems like it should have been more of
a winner. Why did it flop?


Dallas

wrote)
I have been thinking that it would be cool to refit an old 337 with twin
jet engines mounted in place of the rear engine with snorkles for the
intakes and a nose extension fairing in place of the front engine for drag
reduction and CG adjustment. Given the advances in small jet engines in
recent years, this might be feasible. Imagine the rate of climb you would
get. You could run the throttles at a modest setting for cruise.


I'm waiting to see the real world numbers for the HondaJet - Plane and/or
engine.

Engine guys at Oshkosh said Honda was considering selling just the power
plant to others.


Montblack

"Peter Duniho" wrote in message
...
I don't see how this is an issue. With centerline thrust, the pilot
shouldn't NEED to know which engine has quit.

Perhaps there is a need to feather the prop on the dead engine to cut drag?

wrote in message
oups.com...
I have been thinking that it would be cool to refit an old 337 with
twin jet engines mounted in place of the rear engine with snorkles for
the intakes and a nose extension fairing in place of the front engine
for drag reduction and CG adjustment.
snip
There is an experimental aircraft for you!

Actually, you would be implementing / developing an STC, not building a new
experimental aircraft... The rules are a bit stricter for that...

You need to know hoe to identify the dead engine and feather
the correct prop, otherwise you're going down. In a
conventional twin identification is holding heading with
rudder, "dead foot dead engine" and the litany is

CONTROL
POWER (up)
DRAG (gear and flaps)
IDENTIFY
VERIFY
FEATHER
FLY

secure it

In the 336/337 it isn't as easy or obvious which engine is
sick or dead.

--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Peter Duniho" wrote in
message ...
| "Dylan Smith" wrote in message
| ...
| [...]
| The people who are liable to VMC roll a conventional
twin are probably
| the same people who will stall a 337 while taking their
time over trying
| to figure out which engine has quit.
|
| I don't see how this is an issue. With centerline thrust,
the pilot
| shouldn't NEED to know which engine has quit. The primary
reason for
| knowing which engine has quit in a convential twin is so
you can use the
| correct control inputs. With centerline thrust, you just
keep flying the
| airplane. Why would any pilot spend any time trying to
figure out which
| engine has quit on a 337? What are they going to do with
that information,
| at least in the immediate sense?
|
| Pete
|
|

Knowing how flimsily Cessna tends to make their designs,
using the thinnest possible metals, etc, a re-engine job is
critical. Airplanes have speed and power limits, both for
structural strength and aerodynamics...the 337 is pretty
well at that point as sold by Cessna.


wrote in message
oups.com...
|I have been thinking that it would be cool to refit an old
337 with
| twin jet engines mounted in place of the rear engine with
snorkles for
| the intakes and a nose extension fairing in place of the
front engine
| for drag reduction and CG adjustment. Given the advances
in small jet
| engines in recent years, this might be feasible. Imagine
the rate of
| climb you would get. You could run the throttles at a
modest setting
| for cruise.
|
| There is an experimental aircraft for you!
|
| Dean
|
| Dallas wrote:
| Looking at the design of the C377, it seems like it
should have been more of
| a winner. Why did it flop?
|
|
| Dallas
|

"Grumman-581" wrote in message
...
Perhaps there is a need to feather the prop on the dead engine to cut
drag?

Ahh...good point, thanks.

The Eclipse 500 will sell for about what a new Beech 58G
Baron will sell for, as soon as I win the lottery, I'll make
my deposit.



--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Montblack" wrote in
message ...
| wrote)
| I have been thinking that it would be cool to refit an
old 337 with twin
| jet engines mounted in place of the rear engine with
snorkles for the
| intakes and a nose extension fairing in place of the
front engine for drag
| reduction and CG adjustment. Given the advances in small
jet engines in
| recent years, this might be feasible. Imagine the rate
of climb you would
| get. You could run the throttles at a modest setting for
cruise.
|
|
| I'm waiting to see the real world numbers for the
HondaJet - Plane and/or
| engine.
|
| Engine guys at Oshkosh said Honda was considering selling
just the power
| plant to others.
|
|
| Montblack
|

Hi Jim,

That is true, but if the jet engines were small enough they wouldn't
necessarily overpower the airframe. There are some really small
turbines out these days...

Dean