selection

There are many possible engines that would work in the '424. I won't go into the reasons I rejected any specific engine. Most were
rejected either because their dealer network was too small, the engine too big or heavy, or I didn't trust that parts would be
available for another 30 years.

All the engines I evaluated come either without a transmission (bobtail), or with a transmission. In most cases, various transmissions
are offered with differing gear reduction ratios and drive angles. The W60 Velvet Drive transmission has a 1:1 ratio and a zero
degree drive angle. As far as I can tell, none of the other transmissions are offered with a 1:1 gear ratio, though they can all mount a
bell housing that will accept a Velvet Drive transmission. This transmission has a great reputation. It has proved to be robust and is
still offered as an option for many engines. I recently rebuilt mine, so I favored reusing the transmission and purchasing a
replacement engine properly configured to mount this transmission. In my opinion, this will simplify the installation and allow reuse
of the shaft brake should I ever decide to replace my folding propeller with something that requires one.

Here's are the engines that I selected as best candidates. Prices listed are for stock engines including shipping configured to accept a
Velvet-Drive transmission. The first two engines have estimated costs based on quotes from the vendors. Actual cost for these
engines will likely be a little higher after accounting for suprises.

Click on the links below for more information.