Roger Roger
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The (possibly apocryphal) story is that they were originally designed to run oil field equipment, and as such would burn whatever petroleum leftovers were thin enough to flow through the fuel system.
C402 runs out of fuel over St. Petersburg
- Thread starter RDoug
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milleR
Well-Known Member
I've heard the same, and that they weren't meant to be shut down, just given an oil transfusion every couple thousand hours.
trafficinsight
Well-Known Member
I don't think they were designed for that, everything I can find is that they were intended to replace most of the popular radial engines of the day, but they have been used as such.
Ive heard stories where they are used to power well pumps and service occurs while they're running, and they have something like 50,000 hours between starts.
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Roger Roger
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Hence why I said apocryphal. I too looked at the Wikipedia article after I posted.
milleR
Well-Known Member
Never let facts get in the way of a good story.
Roger Roger
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If we did, aviation folks would have a lot less to talk about.
trafficinsight
Well-Known Member
Who knows if it's true but there's no reason to believe it couldn't be.
Starts and stops are some of the most stressful things an engine core does.
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trafficinsight
Well-Known Member
Roger Roger
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NEEEEERD!!! (Didn’t you place nationally in Aircraft Rec?)I didn't
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trafficinsight
Well-Known Member
Boy the things people remember...
No but I almost did. Tied for 20th and lost the tie breaker.
I got 2nd place at regionals though. Beaten by a riddle person both times, so I figure I'm good
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bucksmith
Did you lock the doors?
That's always been the Achilles heal for the PT6, the fcu and hP fuel pump. That thing quits and it gets quiet. Otherwise, bullet proof.
Roger Roger
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It’s that bellows. And the Py lines that run allll the way from the back of the engine to the front, that if they leak you better be quick (but not TOO quick!) on the Mexican Power Lever. On the 331 FCU as long as the FCU is still coupled to the engine (and as long as someone didn’t put the HPFP together with parts from the test set instead of the real parts) it will more or less run. Everything else in there is just to help with starting and compensate for operating in the flight levels.
Butch Palmore
Just happy to be here.
Considering what a Jet-A burning Diamond twin sounds like. I’m guessing that would stop a line guy depending on his ears.
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BigZ
Well-Known Member
Naaah, the proto-PT6 sits at PWC facility. Looks very much like a PT6, only very custom hand made and hence has that steampunk vibe to it. Very cool actually. The factory at the time was indeed involved in overhauling big radial PWs, but the writing was on the wall about that business going away, so the guys had more free time on their hands and a strong desire to not learn a different profession and hence the PT6 was born. That's the official story I was told over there anyways.