- Joined
- Jun 24, 2010
- Messages
- 2,429
- Reaction score
- 960
I've been around RC a long time, but never owned a radial myself until I built the O5. At some point I'd like to make a collector ring for my O5 & future engines. And reading the posts here, familiar with trials & tribulations of stainless exhaust systems: annealing, filler, maybe bit more specialized roller benders, joints etc.
I just so happen to be on Heilemann site lurking around. I'm not clear if they are the manufacturer of KALEO or a sales distributer or a custom modifier. But somehow I missed the detail that they are made of 'T-6' aluminum & painted black. From what I read, the RC crowd over the years seem very satisfied with the product from running standpoint on both methanol & gasoline suggesting higher thermal expansion can somehow be dealt with. Now I'm wondering out loud if bending aluminum would be less drama over thin wall stainless or just a different flavour of careful requirements. I don't own a TIG but its on the bucket list. The connector tubes & joints & such would have to be tacked & welded vs silver solder or TIG brazing steel tubing alloys. When I took a class years ago, I managed to TIG some inches of 1/16" 6061 (we wont talk about apprentice puddles on the floor). What do you think? Is aluminum it rabbit hole B vs SS rabbit hole A?
https://www.heilemann-sternmotoren.d...-fg-19-r3-info
I just so happen to be on Heilemann site lurking around. I'm not clear if they are the manufacturer of KALEO or a sales distributer or a custom modifier. But somehow I missed the detail that they are made of 'T-6' aluminum & painted black. From what I read, the RC crowd over the years seem very satisfied with the product from running standpoint on both methanol & gasoline suggesting higher thermal expansion can somehow be dealt with. Now I'm wondering out loud if bending aluminum would be less drama over thin wall stainless or just a different flavour of careful requirements. I don't own a TIG but its on the bucket list. The connector tubes & joints & such would have to be tacked & welded vs silver solder or TIG brazing steel tubing alloys. When I took a class years ago, I managed to TIG some inches of 1/16" 6061 (we wont talk about apprentice puddles on the floor). What do you think? Is aluminum it rabbit hole B vs SS rabbit hole A?
https://www.heilemann-sternmotoren.d...-fg-19-r3-info