Any updates/news on the exhaust system?
Trying to figure out how I'm going to do something similar on my O-320Lycoming.
I was considering this project a while back but decided to leave it for someone with deeper pockets, not to mention the shear hassle of trying to get a warbird out of the US these days.There's a YO-3a for sale for 85K:
That'd be now, how's it going?Yes, I think he is.
Years ago I used similar theory in the construction of experimental silencers for a 9mm. They were light weight, had no packing or wipers, good heat dissipation, low volume, and were very quiet in full auto mode. Didn't work well in single shot mode and the project got scrapped due to lack of market, and too much BATF paper work.
Since aircraft engines aren't very often operated in single shot mode the idea may have merit for aircraft exhaust and could be worth the time to try someday. I might have some spare time around 2017:tired:
Back in the 1980’s prince Charles was in the news for learning aerobatics in a Chipmunk. He was invited to come across the pond and participate in an aerobatic contest, but he was a no-show. I won’t say any more about his family, since I’m not British.Marty, you have to go back to September 1945 and give Fred Trump a condom!
Might as well have him take that time machine back 50 or 60 years and fix a few problems on the other side of the aisle as well. At least with the current (imperfect) situation, the pendulum is swinging back toward the middle where things are in balance, instead of further off the rails in the direction it had been going. Maybe his time machine can go into the future a few years and stop the pendulum from swinging too far in either direction, eh?Marty, you have to go back to September 1945 and give Fred Trump a condom!
I'm going to build this in Jan. Just sourcing out the 321. Did you end up going with 5"? 4" is all I can find so far, in either 16ga or 20ga.Here's a picture of my Mazda Renesis Rotary 3-port exhaust manifold that I've trimmed to accept the "can" in which the exhaust pulses will spin around the circumference while the flow exits the can through a perforated pipe (not shown in this photo) that runs down the center of the can.
Mufflers are best concocted with witchcraft and luck: Test with mild and scrap whatever. When you get something that works, then go hunt the stainless.I'm going to build this in Jan. Just sourcing out the 321. Did you end up going with 5"? 4" is all I can find so far, in either 16ga or 20ga.
Extremely unlikely that it will help; extremely likely that it'll cost several knots. True Merideth effect is so difficult that it approaches myth.I kinda wanna stick that vortex muffler out in the airstream with a merideth shroud around it so it can produce some auxiliary thrust.