I think that the engine info in the product guide needs to be expanded to include:

* Recomended prop sizes
* Recomended tank size (fuel consuption would be nice)
* Recomended aricraft weight (scale)
* Recomended aircraft weight (sport)
* Recomended aircraft weight (3d)

Make sure that the manufacturers provide HP and weight figures.

I have attached a pic to describe what I mean

With this extra data, you would be able to create an 'Engine Finder' where you could put in the weight of your plane and pick the type of performance you wanted
and return the engine types within that criteria. even ask for 2/4 stroke, enter a price range, ask for new/used



cheers,
Mitch.