Green Arc Red Zone

Morgans wrote
So there was a RPM restriction on the Electra?
What do you recall? Didn't a constant speed prop pretty much bypass it?

The Electra (L-188) engine (Allison) always turned at 1061 RPM except at
ground idle. It had no Prop Control.

Bob Moore
ATP L-188
Combat Aircrew Commander P-3B

"Bob Moore" wrote in message
46.128...
Morgans wrote
So there was a RPM restriction on the Electra?
What do you recall? Didn't a constant speed prop pretty much bypass it?

The Electra (L-188) engine (Allison) always turned at 1061 RPM except at
ground idle. It had no Prop Control.

So, fixing the mounts and stiffening the wings was the only thing that was
changed; no different operating procedures?
--
Jim in NC

Morgans wrote
So, fixing the mounts and stiffening the wings was the only thing that
was changed; no different operating procedures?

The "old" Electras that I flew at Air Florida did have a speed limit
imposed by the FAA. I have forgotten just what it was...34 years ago.

Bob Moore

Bob Moore wrote:


The Electra (L-188) engine (Allison) always turned at 1061 RPM except at
ground idle. It had no Prop Control.

C'mon Bob, I seriously doubt the *engine* ran at 1061 RPM!

Happy Flying!
Scott Skylane

"Scott Skylane" wrote in message
...
Bob Moore wrote:


The Electra (L-188) engine (Allison) always turned at 1061 RPM except at
ground idle. It had no Prop Control.

C'mon Bob, I seriously doubt the *engine* ran at 1061 RPM!

Why not? It is a turbine engine, after all.
--
Jim in NC

Morgans wrote:

"Scott Skylane" wrote in message
...

Bob Moore wrote:


The Electra (L-188) engine (Allison) always turned at 1061 RPM except at
ground idle. It had no Prop Control.

C'mon Bob, I seriously doubt the *engine* ran at 1061 RPM!


Why not? It is a turbine engine, after all.

That would make it even more surprising. That would be extremely slow
for a turbine. It isn't bad for a large piston engine, but still on the
slow side.


Matt

"Matt Whiting" wrote


That would make it even more surprising. That would be extremely slow for
a turbine. It isn't bad for a large piston engine, but still on the slow
side.

Note to self: remove egg from face. g

I finally saw it. I was looking at it and sseing 10,610 RPM, or something
like that.

Perhaps that is prop speed, at 1,061 RPM ?
--
Jim in NC

Morgans wrote:
"Matt Whiting" wrote


That would make it even more surprising. That would be extremely slow for
a turbine. It isn't bad for a large piston engine, but still on the slow
side.


Note to self: remove egg from face. g

I finally saw it. I was looking at it and sseing 10,610 RPM, or something
like that.

Perhaps that is prop speed, at 1,061 RPM ?

That would make a lot of sense. 1,000 RPM for a large prop would be
plenty fast.

Matt

Morgans wrote
Perhaps that is prop speed, at 1,061 RPM ?

Obviously.... :-)

Bob Moore

"Scott Skylane" wrote in message
...
Bob Moore wrote:


The Electra (L-188) engine (Allison) always turned at 1061 RPM except at
ground idle. It had no Prop Control.

C'mon Bob, I seriously doubt the *engine* ran at 1061 RPM!

Happy Flying!
Scott Skylane

Well, the output shaft & prop did. As I remember there was about an 11:1
reduction from the turbine.

Al G

VP-48 Crew 6 Moffat/Adak/Agana