Mailing List flyrotary@lancaironline.net Message #62886
From: William Jepson <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Threaded P port.
Date: Wed, 19 Oct 2016 14:34:11 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Neil,
I have seen several examples of the Rotec radial. Both the 7 and 9 cylinder I believe. Well made and sweet running modern radial. (love the sound, which is the ONLY thing I don't like about the rotary!) I was a motorcycle road racer and just knew that when the American dominance during the 80's was over that the Aussies and New Zealanders would pick up the torch. Lots of innovation and experimentation there. True in aircraft as well. You guys are as crazy as we are! Must be in the water or something!

Bill

On Wed, Oct 19, 2016 at 2:21 PM, Neil Unger <flyrotary@lancaironline.net> wrote:

Bill, I have been told that Rotec in Melb Aust, makers of a small radial, also  make a brilliant slide throttle.  I am happy for the rotary to idle at 2000, or a little less at it give a prop speed of 6-700.  Again it is up to we owners as to what is acceptable for the given cost.  My TB cost $110 from the wreckers.  The original dual TB came from EFI and cost more like $1200.  They also make great gear if you can pay.  Neil


On 10/20/2016 8:07 AM, William Jepson wrote:
Neil,
I like his ports, not the same as ours but a good setup also. Ours are configured with the butterfly close to the inside. It really seems to help the idle. Our PSRU has an adjustable mesh and everything will idle down to 1100 engine RPM no problem. (while swinging a prop on the dyno.) I plan on a proper slide throttle, (hard slide with bearings), to go even further. I'm on Paul Lamar's newsletter and while there is a lot of dross, there is some good info there. Recently there was a post from someone that had info on the Merc. C111. I got several items of information from the drawings and pictures, also 1 patent. They put the throttle butterflies exactly where we do. 
Bill

On Wed, Oct 19, 2016 at 1:23 PM, Neil Unger <flyrotary@lancaironline.net> wrote:

Bill, as you can see in Christian's housings, the water galley is sealed being the cold side anyway. This is a popular way to stop water leaks on the P port.   You can also see where the plug fits up against the housing.    By the way Christian is a wizard on rotaries, he can pull down and get going again in a day!!!  I hate people like that, he makes me look stupid!!!  Neil.


On 10/19/2016 8:42 PM, Christian And Tamara Mcdonald wrote:


On Wednesday, 19 October 2016, Christian And Tamara Mcdonald <christamarmc@gmail.com> wrote:
Here are a couple of pics of my housing which is still working well



On Monday, 17 October 2016, Neil Unger <flyrotary@lancaironline.net> wrote:
found a better one.  threaded P port.  Neil.



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