This data is from 2006, they Thielert has not released a 2007 annual
report yet.

The annual report for Thielert, which makes diesel engines for certain
single-engine Cessnas, Pipers, and Diamonds, shows an increase in
sales of aircraft engines from 22 million Euros to 31 million Euros.
That's a 44% increase. It's probably over 1000 engines in total.

They are the third largest piston engine maker in the world (which
surprises me, I would have thought Lycoming, Continental, and Rotax).

The total market for piston aircraft engines is about 13,000 including
both new planes and the larger replacement market.

They aim to sell helicopter engines in 2009.

The best quote from the annual report: "We aim to achieve a market
share in piston aircraft engines of over 50% in the medium term. The
necessary demand and customer base are already in place."

Maybe diesel engines are catching on??????