Well perhaps the joke perpetrators were your parents.
Tracy Crook builds a gear box capable of aerobatics with a wood prop.
The problem is it will not accommodate a hydraulic  constant speed prop.
Also the rotary is not suitable for sustained inverted and knife edge flight because of
oil drain back problems. All these problems could be overcome but it
would not be cheap.

Paul Lamar

Hello again Paul,

Thanks again for the reply. I'm wondering if you have given Tracy the same hard time about his surname that you are giving me? Seems that you are rather "hung up" on my name. Often, people of different ethnic extractions make faux pas in other languages.

I used to know an Irishman by the name of Tom Death. He was prescient enough to change his name to De Athe before he got married and had kids. (No one would want to know a kid called "death").  Now,  everybody thinks he is descended from some noble European family.

The Mitsubishi Pajero is another classic example. Ikea just withdrew from sale in Germany a style of childrens' bed called "Gutvik" because they failed to check the meaning in German.

But rather than have this conversation "cantilevered" out in (cyber)space,  I'd rather not "spar" with you,  and whip up a "Hurricane".  So maybe we can have a "suspension" of the inuendo and perhaps "re-structure" this conversation into a more "constructive" vain and "bridge" the gap?

As such, I've been to Tracy's RWS website. Tracy states that the shaft is hollow so it could be used for a C/S prop,  should a suitable govenor be fitted. I shall contact him directly.

So does anyone make a dry sump system for the rotary engine suitable for aerobatics? I am familiar with the Mazda race dry sump system,  but it would appear that it needs some more scavenge stages, possibly at least two, maybe three for sustained inverted flight and negative G maneuvers.

I am also aware that a lot of V8 engines use external multi-stage dry sump pumps with great success.  Several firms make them. I'm wondering if anyone has had any experience fitting them to rotary engines?

Unlike the Lycoming and the Christen Oil system, the rotary engine would seem to also need a remote resevoir. The M14-P system is half there,  but the two engines are totally different animals.

So is there anyone out there who has done this,  or knows anything about dry-sumping a rotary for aerobatic use?  Where would I obtain such an oil resevoir tank that could feed the engine irrespecitve of attitude?

Again,  thanks again for providing an interesting website. I also enjoy a bit of repartee on occasion.

Sincerely,

Warren

Well we don't publish email addresses but your alleged name in no way jibes
with your email address while Tracy Crook's email address correlates
well with his name. You can understand therefore why the red flag went up
my flag pole :)

Power Sport makes a dry sump system but I don't recommend their cooling
system. Marcotte is reputed to make a psru with a governor pad but
I have never seen one and as I understand it they have trouble delivering.

Paul Lamar
 
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