Browse Publications Technical Papers 2000-01-2122
2000-04-11

A New Instrument for Fuel Consumption Measurement in Light Aircraft 2000-01-2122

An original instrument for fuel consumption measurement in reciprocating internal combustion engines for light aircraft has been developed and built. It is based on the detection of two parameters: the engine rotational speed and the manifold pressure. The aim of the instrument is to provide a fuel consumption indication which can be used during cruising. The instrument is not intended to replace the usual on board fuel level gauge, but can be used to integrate the flight information with the overall and instantaneous fuel consumption data, and with the cruising range indication, leading to a significant increase in flight safety. Some results of fuel consumption measurements from experimental tests are here presented and discussed. Such results were first obtained with the instrument installed on the engine during bench tests. Then, flight tests were carried out with the instrument installed on three different aircraft, to evaluate the instrument response under real operating conditions. The first results thus obtained have encouraged further developments of the instrument.

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