

| Subject: | Re: Supercharger |
| From: | Angus Gordon |
| Date: | Mon, 25 Sep 2000 08:30:59 -0400 |
>Was just looking at this discourse on superchargers/supercharging and it >reminded of asupercharged engine I ran into in my aviation days. It was found >on the Lockheed (as I remember) ?Super-Constellation, which had four engines. >The engine designation was a Pratt&Whitney R-3350-T. This engine was a >monster. It was an assembly of 4 banks or 9 cylinders each, bolted together >to a common crankshaft. The exhaust system was a stainless steel collector >system that ran together forming three common exhaust point. At those points >were located 3 turbines driving superchargers for the fuel induction system. >Having these three "Turbosuperchargers" resulted in a 33% power recovery from Sorry for the non-Vanagon content, but it bothers me to see misinformation like this. The Constellation uses the Wright R-3350 engine which has 2 rows of 9 cylinders. The exhaust turbines mentioned are called Power Recovery Turbines, and are actually coupled via fluid drive back to the crankshaft to extract horsepower from the exhaust. I don't know the percentage involved but would guess they might supply up to about 20% of the available power. Ever wonder what percentage of information from the internet is correct? ================================ Angus Gordon '89 Carat Delta, Ohio '86 Syncro
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