Comments by "David Elliott" (@davidelliott5843) on "Parallel vs. Sequential vs. Compound - Twin Turbo systems explained - Boost School #11" video.

  1. There’s a fourth turbo system that was used by US radial engines during WW2. Small turbo feeds charge air to the engine. Large turbo is geared to the crankshaft so excess exhaust energy is used to put more power into the propeller.
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