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13 Aug 2020, 10:48 [ UTC - 5; DST ]


MRM (Honeywell)



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 Post subject: PT6A-114 and -114A
PostPosted: 06 Jul 2020, 10:57 
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Joined: 11/06/13
Posts: 316
Post Likes: +152
Aircraft: C208B, AL18-115
Our family has had a C-208B Grand Caravan for 20 years equipped from the factory with a PT6-114A. Flying yesterday, I realized that I have never seen a history of that model number. How is it different from similar PT6's? Is it a -135 (or other model) with a single exhaust stack? What other models does it share internal parts with if any?

Also, anybody know the internal differences between a -114 and -114A?


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 Post subject: Re: PT6A-114 and -114A
PostPosted: 06 Jul 2020, 13:14 
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Joined: 06/23/11
Posts: 151
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Location: Louisiana
Aircraft: 1967 V35
I found this info on the PT6A-114A (https://www.euravia.aero/engine-detail/ ... ?locale=en)

"This engine is the same as the -114 PT6 engine apart from a stronger propeller shaft and the incorporation of the PT6A-135A compressor."


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 Post subject: Re: PT6A-114 and -114A
PostPosted: 07 Jul 2020, 13:45 
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Posts: 319
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Aircraft: CL-30, KA90/100/200
Note 13 (page 23) of the FAA TCDS for the PT6A engine has a succinct differences comparison
https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/5d321492dfdb153086257f0d005a6ceb/$FILE/E4EA_Rev_27.pdf


PT6A-114 Similar to PT6A-135 with a single port exhaust and PT6A-41 fuel system concepts and PT6A135 reduction gearbox.

PT6A-114A Throttle push version of -114 incorporating the -135A compressor, and a new strengthened propeller shaft.


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 Post subject: Re: PT6A-114 and -114A
PostPosted: 07 Jul 2020, 16:32 
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Joined: 11/06/13
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Aircraft: C208B, AL18-115
Thanks. Interesting to learn.


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