ilikeyyc
Posts: 1326
Joined: Tue Dec 09, 2003 8:09 am

RR/Allison 250 B-17

Sun Nov 19, 2006 9:11 pm

I'm looking for information on the RR/Allison 250 B-17, specifically info pertaining to maintenance. How often does it have to be overhauled? How much does it cost for an overhaul? Would someone need a lot of special tools that are specific to that engine (such as a rigging kit)? What are people's experiences with these engines? I'm not asking anyone to do my research for me, but I'm hoping that you all can point me in the right direction to where I can find these answers.

While I'm at it, where can I find the same info pertaining to the Lycoming TIO 540? The reason I ask is that there is a kit plane out there that offers the two engines as options.
Fighting Absurdity with Absurdity!
 
SlamClick
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Joined: Sun Nov 23, 2003 7:09 am

RE: RR/Allison 250 B-17

Mon Nov 20, 2006 11:57 pm

Oh, I thought you meant a Boeing B-17 powered by Allison 250s. All I could think was, I hope it has a bunch of them!

First time I ever saw that engine I wanted to put one in my Corvair.

Since entine TBOs etc. are dictated by the FAA I'd guess their website would have some of your information.
Happiness is not seeing another trite Ste. Maarten photo all week long.
 
411A
Posts: 1788
Joined: Mon Nov 12, 2001 10:34 am

RE: RR/Allison 250 B-17

Tue Nov 21, 2006 1:29 am

A company called Silver Eagle (I think) offers the Allison conversion for certain models of the Cessna 210.
A Google search might indeed turn up more information on this.

As for the Lycoming TIO-540, the Lycoming website offers overhaul time limits, I believe.
If not, an email to Lycoming should provide a quick answer.

The Allison 250 engine was also used to re-engine models of the Cessna 402 by Pacific Airmotive, in the early seventies.
Not many were done due to the expense of the STC.
 
SlamClick
Posts: 9576
Joined: Sun Nov 23, 2003 7:09 am

RE: RR/Allison 250 B-17

Tue Nov 21, 2006 1:32 am

Quoting 411A (Reply 2):
the Cessna 402 by Pacific Airmotive, in the early seventies.

If I'm not mistaken, Scenic Airlines had some of these flying the Grand Canyon tours. The conversion also had lightning strakes bonded to the tip tanks.
Happiness is not seeing another trite Ste. Maarten photo all week long.
 
411A
Posts: 1788
Joined: Mon Nov 12, 2001 10:34 am

RE: RR/Allison 250 B-17

Tue Nov 21, 2006 7:06 am

Correct, SlamClick, you remember well.
Most all of these conversions were done at KSMO, in the Pacific Airmotive hangar there.
A long time ago.
 
ilikeyyc
Posts: 1326
Joined: Tue Dec 09, 2003 8:09 am

RE: RR/Allison 250 B-17

Tue Nov 21, 2006 7:28 am

Quoting SlamClick (Reply 1):
Oh, I thought you meant a Boeing B-17 powered by Allison 250s. All I could think was, I hope it has a bunch of them!

LOL! I can see how the title is misleading.

Quoting 411A (Reply 2):
A company called Silver Eagle (I think) offers the Allison conversion for certain models of the Cessna 210.
A Google search might indeed turn up more information on this.

http://www.propjet210.com

The web page gave a tbo of 3500 hours. I'll send an email to the service person after thanksgiving. Hopefully he/she will respond.

Also, I spent more time on RR.com and found the TBOs of the various components. RR.com says hot section TBO is 1750 hours.

Isn't there a conversion for the Bonanza?

Anyone have any experience with RR's Power-by-the-Hour agreements?
Fighting Absurdity with Absurdity!

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