Mike Pienaar wrote:

Paul,

Could we ask Brian Perry to expand on what he would put into this big box that he recommends. Would be good to hear from somebody that works with it every day.

What do you lose by going to 2 boxes, my thinking is that the rear box would be much cooler and you could use very thin material to save weight.

I am about to order spares to rebuild my motor (1998 turbo), could you please confirm that rotor housings are standard items regardless of motor type. The local "expert" tells me there is a difference in width between the turbo and non turbo.

The motor mount looks good, what size are the tubes that you are using. I plan to build a full size mock up next weekend (1 DEC) using 3/4 inch O/D water pipe. Will let you know if I succeed, my metal working skills are not up to much.

That is a new one on me. I think there is no difference in width as long as it is for a 13B. 
The 12A is narrower. If there is a 1998 12A motor made and sold someplace
else in the world I am unaware of it.

I am using 7/8 dia .049 wall 4130 for the bottom four tubes and 3/4 dia .049 wall
4130 for the top two tubes.

Are you going to run the 1998 dual turbo set up or change it to one turbo?
 
Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org