Reducing the Accident Rate

Michael wrote:

Note that NONE of the new aviation engines (Orenda, Thielert, Honda,
Bombadier) have separate cylinders.

Just a quick look with Yahoo turned up the Morane Renault, Zoche, and Jabiru engines
- all new designs with separate cylinders. I'd bet the guys going to Oshkosh will be
able to provide other examples when they get back.

In general, separate cylinders are advantageous for air-cooled engines and blocks are
preferred for water-cooled designs, but this is not a universal rule.

George Patterson
In Idaho, tossing a rattlesnake into a crowded room is felony assault.
In Tennessee, it's evangelism.

"G.R. Patterson III" wrote
Just a quick look with Yahoo turned up the Morane Renault, Zoche, and Jabiru engines
- all new designs with separate cylinders.

A Jabiru is an all-new design? Looks loke a Lycoming shrunk to take
advantage of better metallurgy. Besides, it's a certified engine in
Australia, and I bet they have their own version of the FAA modeled
largely on ours.

I've been hearing about Zoche for years - long before I ever heard of
Thielert. Thielert now has actual production engines on actual
production aircraft. How about Zoche?

In general, separate cylinders are advantageous for air-cooled engines and blocks are
preferred for water-cooled designs, but this is not a universal rule.

I don't agree that it's a rule at all. If it were, we would see
separate cylinders SOMEWHERE outside aviation. And no, engines of
less than 4 cylinders don't count.

Michael