ORIGINAL: roncoleman
Earlwb,
Nice photos, are these part of your collection. I always wondered what exhaust system would be use on the multi-cylinder engines.
Those exhaust stacks look kind of small, where they actually used or just for display? The 61 I posted is for sell (280 euro/$362) on
ebay.de, there were a couple others there also.
Sorry they are not my engines. I sold the ones I had and wished I had some others though. But I would want to run and use them myself. So I am reluctant to get any nowadays.
Back in the 1970's mufflers weren't used all that much and the mufflers one could get weren't very good anyway. Ross baically just used exhaust stacks to get the exhaust out away from the airplane. There were some nice cast muffler adapters made for the twins and quad engines. I would have liked to known who made the cast twin in cowl muffler though.