Aircraft today are mainly used to carry passengers and cargo. Military aircraft are used as fighters, bombers, patrol aircraft and electronic warfare aircraft.
In WWII an airplane would be useful to bomb the other countries.
They are useful for takeoff to get lift and at landing for slowing down the plane.
I think that's airplane traffic updates are very useful. It has helped me alot when i was going on holiday.
With airplane... There are 2 airports that are useful for the goal: Paphos and Larnaca.
To rescue people from a sinking boat
Traveling across the world? lol or even in the same country
Mainly for long distance travel and fuel efficiency.
Barometers are used today on airplanes to measure altitude, in airplane pitot tubes to measure airspeed, in airplane wings to detect stalls before they happen, by meteorologists to make weather predictions.
Of course. You're simply not allowed to turn it on during the flight. Which is not really a big loss, because it's impossible to get anything useful out of a small radio aboard an airplane anyway.
There are many airplane models that are offered as radio controlled planes. The Kyosho bi-plane, The F3A Pattern ship and The Shinden are all airplane models available as RC planes. The following link provides some useful information about RC airplane models, http://en.wikipedia.org/wiki/Radio-controlled_aircraft
A mirror can be used as a reflector to signal passing ships or airplanes. A mirror may be used to signal a ship or an airplane that you are on the island. Reflecting the sun's rays into the cockpit of an airplane might bring help.
The "black box" keeps record of plane speed, altitude and other things that are useful after a crash.