October 2002 Issue

Letters: 10/02

Diesel Pro/Con
In case you didn’t know, diesels are not good for airplanes because they are too heavy. We are going to read a stream of articles in which researchers will be obfuscating the weight (“comparable to a typical....”) or fudging the power (“125 HP, but it is just as good as..”)

Of course, what counts is the sum of the weight of the powerplant and the fuel, and that brings us to the next point. The fuel economy of a diesel under constant load is only marginally better than that of  a gasoline engine.  (Remember the Continental Malibu burning 14 GPH when extreme leaned?)

If we are doing this because we have to burn Jet-A, someone should whip up a 150 HP gas turb...

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