Veeduber a écrit:


In another thread regarding the growing shortage of air-cooled
automobile engine that can be easily converted to serve as a power-
plant for a home-built, I mentioned liquid-cooled engines as an
alternative. This lead to an interesting exchange about various
options but it also made clear that many home-builders are not
familiar with industrial engines.

In France:
http://gazaile2.free.fr/diesel.php

The engines are heavy automotive diesel. But here, the taxes are low
on diesel fuel and more than 50% cars burn diesel.

The #1 use a isuzu diesel on original airframe
the #2 use a Peugeot diesel on "MCR01 style" fuselage.

The airframe is built very light , the fuel burn is as low as 9l/h
(2.4g/h) for 110kts of speed for the Gazaile 2.

About the engine: more simple than Thielert but in fact, the homebuilder
need to accept electronics for newer engines. The Engine control unit
must be simpler than automotive ones.
The engine limitation is torque, no rpm... From a 90HP automotive, we
may expect 130 HP with more rpm and PSRU.

I own a 90HP Toyota diesel in a Corolla, I may achieve 65mpg in best
day and 50mpg in common days. This engine weight is around 120kg, not
too bad...

The other side is the "commercial" life for engines. If flat four VW
was built during half a century, actual engine commercial life never
exceeded 20 years.

--
« Si tous les poètes voulaient se donner la main, ils toucheraient enfin
des doigts d'auteur! »
Philippe Vessaire Ò¿Ó¬