RCIGN1

Just a little ditty and then I will shut up. If you say you straighten cranks I believe you. But. There is a reason Gary does not straighten Dolmar cranks, there is a reason the 3W's and anyone else who advertises three bearing support on the lower end, uses that many bearings. To keep the crankshaft firmly supported so the motor will not shake.

The weakness on press lob cranks is the press fit. Mess that fit up and the crank is trash. May as well throw it away cause it will A. The lob will spin unless you glue it or pin it. B. The motor will shake. Any prop strike will put the lobs right back out of balance no matter how light or small.

When you talk about the 5.8 cranks being trash you gotta remember that Al had already left and the evil Dr. from North Korea owned the company by then. They never flew an RC airplane in their lives and didn’t care about the sport our hobby or big gas engines. All they wanted was the money. They ran AM into the ground.
R&D stopped about that time and all Al's experiments were trashed, thrown in the scrap bin and no body had eye to the future of anything just get the money and run.

Gary brought Al back in the early days of Brison AC. I personally witnessed visionary AL and entrepreneur Gary rebuild the 2.4, 3.2 and 4.2 motors to the state they are now. Gary Allison single handedly brought the 6.4 twin back from the brink of extinction using Al Willarts original crankshaft drawings only GARY perfected the crankshafts WITHOUT pining them to make them stay together. (He tried but could not make the Dolmars work) as Gary said the Dolmars are too hard to work with on the bench in this manner. He also applied his knowledge and brought the 4.8 twin back to life.

I was a big dolmar fan before I worked for Brison AC now.......they make great industrial motors but.....too expensive, too heavy. The bar stock/industrial RC gas motor has changed our sport tremendously. I am personally glad for the Gary Allisons of the world and anyone else that tinkers and fiddles and just sits and wonders about how to make something better for our hobby.

this is just my .02 worth.

jds