Propellers
Jets
100

When was the first Airplane propeller made

1903 by the wright's brothers 

100

This commercial Jet has been in service for over 70 years and has become a staple of travel and commirse.

Boing-747

200

Other than spinning what is a key difference between the propeller and the wing

It has a higher angle of attack

200

What is the first piece in the Turbojet engine. 

The Air Intake.

300

These two planes have propellers that spin in two different directions at the same time

Coaxial Contra-Rotating and Controllable Pitch Propellers

300

What is one of the major benefit to using jet planes over propellers

Zero torque 

400

This gear is at the bottom of the rotational mechanism of a dule propeller plane

The Drive Gear

500

What is the bottom of a propeller called

Lower chamber