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13BT built for aviation use

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Old 08-04-05, 10:48 PM
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13BT built for aviation use

Here is a 13BT built by Bruce Turrentine for an airplane. Note the propeller reduction drive unit.



This is one of my goals is to build a kitplane with an NA streetported 200hp rotary. I guess you would call it "airported", lol. Photo courtesy of rotaryaviation.com.
Old 08-05-05, 01:39 AM
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Nice!

I've been working on a small airplane powered by a 20b turbo.
Old 08-05-05, 09:56 AM
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Originally Posted by 88IntegraLS
This is one of my goals is to build a kitplane with an NA streetported 200hp rotary. I guess you would call it "airported", lol. Photo courtesy of rotaryaviation.com.
Wouldnt it be better to turbocharge it so the turbo could make up for the loss of air densitey at higher altitudes?
Old 08-05-05, 12:33 PM
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that's an old 13B with a RA PSRU on it, prety much the original way to run a rotary for aviation.. we've come along way since th. Pports, tunned headers and intake runners, advanced cooling ducting and setups for various aircraft. Even single rotor conversions for ultra lights. At the moment we're working on two things, 4 rotor setup and alloy 2pc. irons.

Most of the users are looking at 298-330 hp Pport as having acceptable looses at 8000ft., at least no ones conplained about it.. but a normalizing turbo would be great for some of the larger , higher flying aircraft outthere.
Old 08-05-05, 04:09 PM
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Heck I just want a low wing two seater with a high sea level power to weight ratio! Rotaries rule for the high rpm smoothness and reliability and their size and shape makes them ideal to fit under aircraft cowlings. I could live with a few thousand feet per minute climb rate.
Old 08-05-05, 04:19 PM
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looks clean as hell!
Old 08-06-05, 03:51 AM
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Originally Posted by PDF
Nice!

I've been working on a small airplane powered by a 20b turbo.
That's what I want to do as well. I want stick a turbo charged 20b in to a Lancer IV-P.
Old 08-06-05, 04:01 AM
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Originally Posted by t-von
That's what I want to do as well. I want stick a turbo charged 20b in to a Lancer IV-P.

This ones in a Long E Z. I fitted a T66 to it but the owner wants more power. Its already overpowered and way over weight.
Old 08-06-05, 11:55 PM
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^ that remindes me of a local Glasair with some turbine swap done to it. It has the longest ugliest nose and the guy needs a video camera mounted in the cowl opening to be able to taxi (with tri gear).

the 20B-IVP project sounds way cool!
Old 08-08-05, 03:16 AM
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jeeze a long ez with a T66.. and he wants more powere?? I'd step away from that guy fast.. temm him to get a new airframe like a diamond if he wants to cruise at 350mph.. i'd like to see what kind of exhaust and manifold matierial your going to use for this.. I've found that a move to 321 is required for a 2 rotor and a std, stage 5 t04e 54 trim. I've been trying to lay my hands on titanium becuse it's almost cheaper then Inconel and not really anyharder to work with.

We found that moving from a 9cyl radial to a 4 rotor, in measuremnt anyway at the moment would be no different for visability
Old 08-10-05, 10:36 AM
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" Note the propeller reduction drive unit. "

How does that work anyway? Is it some kind of fluid coupling like an auto?
Old 08-10-05, 04:26 PM
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Planetary gear reduction which has a 2.something : 1 ratio and reverses the rotation. There is more info on it at rotaryaviation.com
Old 08-11-05, 02:26 AM
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Nice. any mor pictures?
Old 08-11-05, 10:53 PM
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rotaryaviation.com might have some. The rotary conversion is pretty established in the homebuilt aviation community. People have been using them in RV-4's and gyroplanes for years!
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