The w key fires a sidewinder. Sidewinders are locked on if they are fired while a target aircraft is in the orange tracking rectangle or if locked on with the t key. The t key identifies the target and locks a sidewinder onto the target for one second without firing the weapon. This is useful for identifying other planes as friend or foe. Sidewinders will not lock on aircraft lower than 150 feet, but once they are locked on, they will track a plane below 150 feet.
Sidewinders stop tracking and follow ballistic paths when they run out of fuel.
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.