1.The three basic problems that need to be solved before successful flight can be accomplished are that you must be able to _____________ lift, ____________ the lift, and be able to _____________ the craft.

2.The wings of an aircraft are designed to produce ____________.

3.The power plant of an airplane will provide the power to produce ___________ to move the aircraft forward through the air.

4.Whenever an aircraft is moving through the air, the force of ________ is working to slow the aircraft down.

5.You could say that the forces of thrust and drag ______________ each other.

6.The lift that the wings produce must be greater than the _______________ of the aircraft if it is going to be able to fly.

7.The first person to identify the forces of lift, drag and thrust as they applied to aviation was __________________________.

8.Who was the German that flew the worlds first rigid dirigible __________________?

9.Known as the Father of Modern Aviation, ______________________ made over 2000 glider flights and recorded his findings for others to learn about aviation.

10.The dirigible was a great improvement over the free balloon, because it could be ____________________________________________________.

11.Samuel Pierpont Langley was first to attempt flight with a __________ powered engine on his craft, that was known as the ________________.

12.Langley launched his aircraft by using a _______________ from a platform that was _____________ in the Potamac river near Washington DC.

13.The Smithsonian Institute is located in ______________________ was founded in 18__ to preserve our nations historical assets to display for public use.

14.If a craft is able to make an intended, controlled changes in altitude or direction, it is said to be _____________________.

15.The Wright Bros operated a ______________ repair shop in _____________ Ohio.

16.They first experimented with flying box________ and discovered that they could control the craft by twisting or ____________ the wings.

17.They needed an open space with steady wind to fly their early gliders and selected ________ _______ North Carolina for their site in 1900.

18.Their first flight took place from _____ _______ Hill in North Carolina, in October 1900.

19.During the winter, they built a _______ ___________ to be able to continue to test their wing designs.

20.They discovered that they needed to attach a ____________ to the vertical tail to help in the control of the craft.

21.The Wright Brothers constructed their own engine that was a ___ - cylinder ______- cooled, gasoline engine that developed ____ horsepower.

22.It had two propellers that turned in ______________ directions.

23.The Flyer had no wheels but landed in the sand on a pair of ______________.

24.On December 17, 1903, with ____________ Wright at the controls, they finally made a flight of 120 feet staying aloft for a mere 12 seconds.

25.They made three more flights that day with the last one traveled ______ feet and staying in the air for ______ seconds.

26.The achievement of the first successful powered flight went _________ __________ throughout the world.