radar
A device for detecting underwater objects is typically called a sonar device. Sonar uses sound waves to detect and locate objects underwater by measuring the time it takes for the sound waves to bounce off the object and return to the device.
It's called a "Motion Detector"!
Radar
Its called that Climbing - in relationship to just after takeoff it's called "climbing out"
One way to measure airspeed is to use a device called a pitot tube.
e-nose
None. The megapixels are in the detecting device. e.g. a camera, a CCD device.
IFF (identification of friend and foe device) will detect the enemy aircraft. Radar system also plays role in this operation.
A Passive InfraRed Sensor (PIR)
The Piranah Water 3000
A stabilator is a ten letter word for an aircraft's climb control device. A Beechcraft P35 Bonanza has such device which is a mix of a vertical stabilizer and an elevator.