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Author Topic: MT 5 BLADE PROP  (Read 14832 times)

SKYFLYER

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Re: MT 5 BLADE PROP
« Reply #15 on: February 21, 2017, 07:00:00 pm »
Applicable Aircraft: Twin Commander 690 / 695 Series
Model: 690, 690A, 690B, 690C, 690D, 695, 695A, 695B
Engines: Honeywell, USA TPE-331-5-( ) or TPE-331-10-( )
or TPE-331-10T-( ) or any TPE-331-( ) installed
per approved STC which do not exceed 820SHP and 1591 rpm.
Propeller: MTV-27-1-E-C-F-R(G)/CFRL240-55d

Seems to pretty much cover the Commander TPE fleet even the -5's upgraded to the -10T

donv

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Re: MT 5 BLADE PROP
« Reply #16 on: February 21, 2017, 11:58:25 pm »
Anyone with a Merlin who doesn't have Dash 10s isn't going to drop whatever the cost is for these props.

The STC does appear to cover the entire 690/695 universe, although not the 680s, sorry...

With the wide-chord props, I was told that the performance benefits were nil on the dash 5 airplanes, and as a result you rarely saw them on dash 5s. In the case of these props, I would think you would get the noise and vibration benefits no matter what, even if you didn't get any improved performance.

Now, someone said that on the Merlins the MT STC is not valid for planes that have been converted to -10's. They either have to be -6's (in their case, which would be -5's in our case) or come with factory -10's. Anyone know if this is true here as well? Seems to be a big market they'd be losing then, all the 690A/B's with -10s...

JMA

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Re: MT 5 BLADE PROP
« Reply #17 on: May 01, 2017, 03:09:19 pm »
Not sure if this was posted, but at least you can see the 5-blade in action.

https://www.youtube.com/watch?v=Xl6du8CRNvM

donv

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Re: MT 5 BLADE PROP
« Reply #18 on: May 01, 2017, 10:05:56 pm »
Are you guys thinking about getting a set, JMA?

JMA

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Re: MT 5 BLADE PROP
« Reply #19 on: May 05, 2017, 10:20:53 am »
Not us DonV...