> >Mike and I were talking at Copper State on where to

 >put his oil cooler. Mike is talking about redoing
 >his motor mount to make room.
 >
 >Here are a couple of pictures of his engine arrangement.
 >
 >I need a few dimensions for a 3D Mike.
 >Diameter of the spinner?
 >Distance from spinner back to firewall.
 >
 >I have the rest of the RV4 dimensions.
 >
 >Looks like one of Jerry Hey's motor plates would be ideal.
 >The left side top diagonal tube would clear the exhaust
 >system if the up and down position of the left side rubber
 >bushings was chosen properly.  If the right side rubber
 >bushing was far enough outboard you might be able to
 >squeeze a stock oil cooler long ways outboard of
 >the spark plugs dumping air out the side of the cowl.
 >
 >You could take it all apart and ship your motor mount to
 >Jerry Hey for modification. No need to make a new cowl.
 >
 >Something similar to this 2D drawing.
 >
 >Paul Lamar

 Paul,

   I'm not redoing the motor mount. I am going to modify the top of the cowl
 to accomodate a more standard forward facing inlet scoop and a top of the
 cowl air exit. You should appreciate this since the inlet that I'm deleting
 is one of those no good NACA scoops.  :-)

   Those are some pretty old pictures. The oil cooler will sit in the space
 behind the alternator shown in that first pic. The alternator is no longer
 in that position. Its been relocated to the plugs side to make room for an
 inlet duct.  The ducting for the oil cooler will be almost identical to my
 rad ducting with venetian blind cowl flaps in the top of the cowl to
 regulate airflow through the cooler.

   Mike Wills

So it will be a more or less rectangular Setrabe oil cooler?
Sounds cool looking Mike (pardon the pun) :-)

Paul Lamar

Look like we reached the same conclusion about oil cooler location.    Jerry

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.