Cowl Flaps are normally opened during high power/low airspeed operations like takeoff to maximize the volume of cooling airflow over the engine's cooling fins. This is especially useful in hot dry environments. You would see these closed in high level flight where temperatures drop and of course in cold/icey takeoffs and landings
The same as a plane, it's the surrounding housing that are also called splash-guards.
Cowling.
The cowling.
The cowling on the aircraft was damaged during the landing, requiring immediate repairs to ensure safety.
Oil began to spit from the right inboard engine of the B-17, streaking backwards along it's cowling.
Tough question. The terms are often used interchangeably, but I would say that a nacelle refers more to the protective housing that encases the engine, while a cowling is used at the front of the engine both for protection (as a nacelle) and also to streamline and direct airflow.
a small engine plane is a plane that is small
Remove the cowling from the top of the engine. They are under there.
First locate the air intake cowling to the right of the engine block. This is where the air enters from the large hose in the front down into the engine. Around this large cowling are five captive screws. Unscrew these (don't worry, they won't fall out). Now, there is a small hose directly connecting the top of the cowling to the right side of the engine block. Carefully wiggle the cowling up and to the right so this hose disconnects. Once it does, you can pivot the cowling straight up. The intake hose is ribbed to allow it to move in such a manner. Be careful; there are two small airflow hoses attached to the cowling near the bottom where the intake hose attaches. Don't bend the cowling up so much that these pop off. Change the air filter. Be sure to press the new one down firmly so that the rubber grommet on it engages the intake firmly. Replace the cowling, reattaching the hose at the top. Once the cowling is back in place, secure the five captive screws. That's it; you're done!
The coil is under the cowling on top of the motor where the flywheel is.
A plane without an engine is a glider, also referred to as a sail plane.
Bottom left side of engine looking at from front. Remove passenger front tire. Is located under cowling but can be removed without taking cowling off.