Guns

Introduction

The F-100D has four Pontiac M-39 20 mm revolving cannons. Each cannon can fire at 1500 rounds per minute for a total combined fire-rate of 6000 rounds per minute. Each cannon has 200 rounds for a total of 800 rounds.

Gun Missile Switch

The gun missile switch controls electrical power for the upper, lower guns and the missiles.

Position	Description
MISSILES	The missile selection provides power to the Missile Control Panel and thus the missiles. Reference AIM-9 Sidewinder Section for missile operation.
SAFE	Removes power from the weapons system rendering it safe.
UPPER	Energizes the second trigger detent and arms upper guns.
ALL	Energizes the second trigger detent and arms upper and lower guns (all).
LOWER	Energizes the second trigger detent and arms lower guns.
POD	Pod selection is unused on the F-100D

Note: Gun missile firing circuits are inhibited when weight is on the wheels.

With the gun missile switch in any position the gun camera can be actuated by using the first trigger detent. See the Gun Camera Section for details.

Firing the Guns

Once the gun missile switch is positioned then the UPPER,LOWER or ALL position, weight is off wheels and the aircraft has electrical power, the gun can be fired with the trigger second stage detent.