Evolution engine
 

I talked to Horizon Hobby about a few things and since they have two evolution engines the same size i asked what was the difference besides the price,the basic
.61 engine is $119.99 while the engine on the alpha 60 trainer is $79.99 and includes muffler,prop and spinner.I was told they only make one .61 engine not two,i said they had two on there webpage and he said no they didn't,a .61 and a .46 but not two .61's.
Question is how can this be since it advertises a .61 on my plane ,
look here
Then at another place,
here
Bore and stroke are a lot different between the .61 and the trainer engine,anybody know the difference or answer ?.
Thanks

RE: Evolution engine
 

The "Trainer Power System" is a .45 size engine, but they are using the same prop, spinner, and flywheel from the Trainer Power System on the Alpha 60.

RE: Evolution engine
 

Then i wonder why in a few places it states powered by the Evolution .61 engine ?,
Product Features
Powered by the reliable Evolution .61 NT engine with 3-bladed trainer prop.

Power for the larger airframe comes from Evolution's robust .61 NT engine, outfitted with the same style 3-blade trainer prop found on the Alpha .40
Not trying to start any argument but i thought i would ask.
Thanks

RE: Evolution engine
 

It DOES use the 61 NT engine.

The engine that you are referring to on the website (as $79.99) is the Evolution Trainer Power System.

The Evolution Trainer Power System is a 45 size engine, not a 61.