How are you folk's making out with the volcano ash ?



Crank for that we use our old European solution read:

The French War Ministry was impressed by Adler's achievement and commissioned him to produce a new plane. It took him five years to build the Avion III. Like the Ecole it had bat-shaped wings that had a span of 52.5 feet (16 m). Powered by two steam engines it had two tractor propellers.

These kind of propulsion can withstand some dust in the propulsion units and the pilot is already black after a flight anyway.

Cees