Here's a castle picture in the link below- on the right side of the F-22's throttle you can see a large button that has angled sides and four tabs sticking out the top. The castle moves up/down/left/right and lets the pilot select targets and navigate menus. It's kind of like the eraser nub on ThinkPad computers, but bigger so you can use it with a gloved thumb : http://www.essexindustries.com/products/f-22-raptor-throttle...
Here's a boat (switch #1 in the link below)- Boats are only forward/back, and are often used as a do/undo option. Imagine pushing forward on the boat to designate a target for a missile, then deciding you don't want to kill that target. You'd pull back on the boat to un-designate the target. They are curved like the bottom of a boat, which gives them their name and lets your finger push forward and back: http://www.f-15e.info/joomla/technology/cockpit/81-pilot-thr...