WSO Hand Controller Sticks
For WSO's of the F-15E there is much more to HOTAS than just functions attached to the throttle and stick switches. The WSO has two more sticks placed on the right and left instrument panel, which house another multitude of functions not for driving the jet but for handling its sensor and weapon systems. These two sticks represent the main working place for the WSO.
The sticks have to be grasped for a prolonged period of time on both sides, hence the huge wrist rests around the bases of them. It is interesting that the HOTAS functions on the left and right sticks are practically identical, the same switches trigger the same functions regardless from which side (left or right) they were triggered. The only difference is the switch placed on the outside of the stick head: on the left stick this is called the CMD dispense switch, while on the right stick this is called the interrogate switch. Due to the similarity of the switches' functions, we discuss them together in the following.
|- CMD Dispense Switch|
- Interrogate Switch
- Coolie Switch
|- TDC Switch|
- Mode Reject Switch
- Trigger Switch
- Laser Fire Button
The functions of these switches and buttons are the following:
1l - CMD Dispense Switch: This is a 2-way switch. When tipped forward it engages CMD manual 1 program (dropping chaff), while tipped aft in engages CMD manual 2 program (semiautomatic countermeasure dispense).
1r - Interrogate Switch: This is a 2-way switch. When tipped forward it performs an IFF interrogate, while tipped aft it activates EWWS and NCTR.
2 - Coolie Switch: This is a 4-way switch. The switch on the left controller stick commands the MPCD and MPD which are on the left (that is MPCD #4 and MPD #5), the switch on the right controller stick commands the MPD and MPCD which are on the right (that is MPD #6 and MPCD #7). When tipped forward it scrolls the left/right MPD, when tipped aft it scrolls the left/right MPCD. When tipped left it puts the left MPCD/right MPD in command, when tipped right it puts the left MPD/right MPCD in command. Tipping the switch left or right while keeping the Master Caution button pressed moves the cautions on the caution display.
3 - Castle Switch: This is a 5-way switch: it can be tipped in 4 directions and can be pressed down as well. The functions invoked by switch tipping and pressing depend on which 'mode' the aircraft is currently in. The following options are possible:
4 - TDC Switch: This is a 5-way switch: it can be tipped in 4 directions and can be pressed down as well. Pressing the switch down has an effect only when HRM is viewed on the active MPD/MPCD - then it expands the map. Tipping the switch in the 4 directions can have different effects, depending on the 'mode' the aircraft is currently in. Note that the switch senses the force it is tipped to a direction - the stonger it is tipped, the faster the cursor moves. Here are the options:
5 - Mode Reject Switch: This is a 3-way switch: it can be tipped forward and aft and can be pressed down as well. Functions invoked by tipping and pressing may differ, depending on which is viewed on the active MPD/MPCD. Here are the options:
6 - Trigger Switch: This switch has two detents. The functions of pressing the switch to these detents vary depending on the 'mode' the aircraft is currently in. Here are the options:
7 - Laser Fire Button This is a simple push button the functions of which vary depending on the 'mode' the aircraft is currently in. Here are the options:
|More Reference Photos|
|Text © 2007 Szabolcs Serflek|
Illustration © 2007 US Air Force / Szabolcs Serflek