Most of the planes that have cowls are set up so that the cowl can be removed without too much effort. Usually by removing a few screws. The engines are set up to be removed by taking the screws or bolts out of the motor mount. No muss, no fuss.

Most builders shy away from building a cowl around an engine due to the severe problems encountered when attempting to maintain or adjust an engine. The ARF manufacturers understand this, too, and design their planes to have removable cowls.

Take a stroll through your local hobby shop and look into a few of the kits that have cowls to get a better idea of the way they are generally set up. If you find one that catches your eye, make your hobby shop owner happy and buy it.