2. .• Focus Point: How are Aircraft
Classified?
Explain the 2 primary
classes of aircraft.
Identify 2 types of fixed wing aircraft.
Do this on the next slide
3. The two primary classes of aircraft
are:-
1) Lighter-than air:
2) Heavier- than air:
4. 1) Lighter-than air:
1.Hydrogen was used (flammable
gas).
2.Uses gas to keep it aloft
3.Eventually slighter heavier helium
(non flammable) was used
5. Lighter-than air:
1) Non-rigid: “free balloon” or “hot air
balloon”, has no internal or external
framework. Has no steering
mechanism.
2) Rigid: blimp, gas is contained in a
fabric covered wooden or metal frame
work. A gondola (control car) is
underneath which carries engines and
personnel.
6. Note: The Hindenburg was a German
Zeppelin, after a successful passenger
flight began across the Atlantic it caught
fire while landing in New jersey in May
1937, killing 36 people and injuring many.
7. 5:46:02 PM
2) Heavier-than air:
All other types are classed as UFO’s
but as no one has one to show
us then it’s a mute
point.
8. Heavier-than air:
1) Rotary wing:
Lift is generated by moving blades
overhead which act as “revolving wings”
A) Autogiro: non powered air driven blades.
Forward flight is accomplished by use of a
conventional engine and propeller.
Forward motion caused free wheeling
rotating blade.
9. • Powered by rotating
blades.
• blades may be tilted
in any direction to
control flight path.
B) Helicopter:
10. 2) Fixed wing:
A) Seaplanes: (flying boats) uses floats or
hulls in place of conventional landing gear
to take off and land on water .
B) Landplanes: classified by location of
wing, landing gear type etc…
13. .
• Focus Point: How are Aircraft
Classified?
1) What are the 2 primary
classes of aircraft?
2) What are the 2 types of heavier than air
aircraft?
3) What are the 3 types of fixed wing
aircraft? Answer on the next slide.
