Subject: the "Spitfire"...
From: rotaryeng
Date: 6/15/2013, 10:16 PM
To: AAA-rotaryeng



In reviewing the recent email I have received from you, I find there may be a slight misunderstanding.  The particular design, is not a modern looking form like the ones you sent me of the RV-Whatever.  I am talking about the wood and composite (W.A.R. Int.) design for the Supermarine Spitfire of WWII vintage.  See this site: http://www.waraircraftreplicas.com/  (see price list)

Also, regarding the Dawn Star, they were common in the 90s around the Quickie Aircraft, and many Ultralights of the time.  Officially, it was called an: SP-440.  It is a single rotor, 40 HP, reverse flow air-cooled industrial engine commonly used in Israel for generators, light-alls, APUs, etc.  Again, it runs well, but I found I had to first slightly flood it and then release the choke, open it up and allow it to fire as it was clearing.  A puff of black smoke out of the custom stainless steel exhaust pipes, and away it would go.  It seemed to have some issues in the area of an idle, but I never wanted to run it for more than 10 minutes at a time until I could devise a plenum system that would take advantage of the prop blast.  The CHT, and EGT gauges never showed signs of getting too hot.

I will try to set up the engine and do a compression test with my gauges.  I wonder if a differential compression test (I.E. standard aviation compression test) would even work? Is there a "TDC" on these engines?, Or is it a TDC-sub 1, TDC-sub 2, TDC-sub 3?

Respectfully,
Dan Hennis
;-)>


Yes probably Dale assumed it was a real 1/2 scale spitfire with high wing
loading half the power and half the weight :)


He is probably unaware of the ultra light or light sport version
that you apparently have.

Please take some pictures of your rotary engine and upload them.

There is one TDC but it is in sequence 360 degrees apart.

Yes TDC chamber 1, TDC chamber 2, TDC chamber 3 and then it starts over.

Paul Lamar
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