OK all too technical may have been a poor choice of words, in retrospect it would be nice if we had a little more input and the actual use of our engines in use and in flight to show what they can do Rocket Bob has done a great job for one of "show and Tell" and the cult thing on Davis conversions ?? people will use what works and works wel we have 100s of posts under the heading of Club Saito on the glow site
for one I guess we have a Saito cult too
and others .I do have an issue with a statement that DDD heads destroy engines, which is an absurd untrue statement
I would like to pick up when I can afford it one of Burfords little diesel which from the reports I have read are far superior to PAW
MY first diesel in 1950 was a drone 29 which was in a home built slab wing U/c on 50 ft lines, as a kid, I then went to college and dropped out till about 15 years ago and got back this time in RC my first engine was irvine 40 diesel ( a modern design) then it grew to 5, thats when I found Davis and bought modern schnerle ported engines from 10 to 90 maybe 20?? and great results
a few PAWS were added too but the Davis conversions and his fuel is the mainstay
yes the irvine 40s are still here and updated with his heads to avoid the chance of dropping that big brass contra

I just ordered more fuel from davis and his sales of fuel are increasing, I guess diesel is not dying off that quick. My guess electrics have brought s lot of people into RC and it appears they are going to try IC engines as the next step glow or diesel, OS seems to be bringing out new engines every few months, so has TT economics dictate you are not going to bring a product to market that does not sell martin