The Cessna 150 does not generate enough heat to attract sidewinders. A good pilot can usually outmaneuver a sidewinder unless his plane is traveling slowly with a heavy load. Sidewinders have a smaller kill radius than rockets. The e key fires a cannon round. The cannon has a limited range-each cannon shell exists for only one second.
Cannons have the smallest kill radius.
The r key destroys the current missile. Any aircraft in range of the explosion is destroyed. Each aircraft can have only one projectile in the air at a time. Missiles may take a long time to fall back to the ground after they have run out of fuel. It is therefore wise to destroy missiles that are out of fuel, allowing new ones to be fired.