Cleared Altitude Indicators
Greetings one and all,
I am working on an assignment for my Master's degree in Aviation Human Factors and need a little help.
Does anyone know where I can obtain and how much the cost is for those little plastic devices where you can dial in your cleared altitude by ATC? The ones I have seen in various aircraft are usually stuck somewhere to the dash and have four little manual wheels that turn the numbers so you can put in 4500 etc.
I am time critical on this, so any help is appreciated.
Regards,
prop-wash