LONGITUDINAL STABILITY
What is longitudinal stability?
What is stability around the lateral axis.
What is directional stability?
What is stability around the vertical or normal axis.
What is lateral stability?
What is the stability around the longitudinal axis.
What is the atmosphere?
What is a layer of gases enveloping the planet.
What are the four layers of the atmosphere?
What is troposphere, stratosphere, mesosphere, and thermosphere.
What is another name for longitudinal stability?
What is pitch stability.
What is the effect of the fin?
If an airplane yaws away from its course, the airflow strikes the fin, forcing it back into position.
What is lateral stability also known as?
What is roll stability.
From the standpoint of weather, which gas is the most important?
What is water vapour
In which layer does most weather occur?
What does the horizontal stabilizer act like?
What is a counterweight at the end of a lever.
What is a direct result of a vertical tail fin?
What is weather vaning.
How does the keel effect work?
How much of the atmosphere is composed of nitrogen and oxygen?
WHat is 78 percent and 21 percent.
In which layer is the ozone layer found?
What are the two principle factors that influence longitudinal stability?
What is the horizontal stabilizer and the centre of gravity.
What is the principle factor influencing directional stability?
What is the vertical tail surface (also known as fin).
What are the three design features built into an aircraft?
What is dihedral, sweepback, and keel effect.
Why is water vapour so important?
It is responsible for the formation of clouds, as well as turning gas into water droplets and ice crystals.
What is the mesosphere?
Meteorites usually burn up in the mesosphere, temperatures here reach a low of 100 degrees Celcius.
What is the danger of an aft-like centre of gravity?
What is stall.
True or False: Airplanes have the tendency of always flying head-on into the relative airflow.
What is True.
What happens when an aircraft with sweepback is forced into a slipping motion?
The down going wing will meet the airflow at a right angle.
What is the atmosphere mostly made of?
What is nitrogen, oxygen, argon, carbon dioxide, hydrogen, and water vapour.
What are the three properties in the atmosphere?
What is mobility, capacity for expansion, and capacity for compression.