Have you worked -out all your requirements
for the single rotor. It not as simple as it first appears, but not so
complicated when it's all said and done.
I guess your turning down a RX7 e-shaft
and filling the extra holes.
Hi George,
I haven't pushed the single rotor project much,
because I've been too busy with the RV-3. I did just buy a complete
single rotor engine off Ebay, and will peek inside soon. I know I
have to fill in at least one hole on the shaft, but otherwise it all seems
usable. Seems to be older housings, but I won't know how old until I
get inside. I'm not sure if I'll use this engine in it's entirety,
or use the REW housings I already purchased. It will probably depend
on what I find inside.
Cheers,
Rusty (gotta make a new intake for the RV-3
first)
George,
why do you recommend not to use a cut down
e-shaft in an aircraft? Do you know what the stock shaft is made of?
I
would be concerned about having the appropoiate core strength and
durability.
Richard
Sohn
N-2071U
Richard,
I
have the same concerns as you Richard - I don't rightly now what the
factory shafts are made of but once you start messing with it and removing
the surface hardness in bearing areas ( as you must),
the question is then how do you get it back to
specifications.
There are a number of good materials to use 4140,
4340, 4317, EN 25, E26, EN 36A ( just to name a few) - some are
nitrited, some are carburised. Someone suggested to me the Mazda e-shaft
is flame hardened, so that may be another material
again.
I
may just get the shaft material tested and Rockwell tested to satisfy
my curiosity.
George (down
under)