An instrument used for measuring variations in the atmospheric pressure, but is not provided with a recording mechanism as in the case of the barograph.
A scale of density or a hydrometer unit used in measuring the density of fluids. On the Beaume scale water is 10.00, while on the "Specific gravity" scale water is 1.00. The Beaume scale is generally used for gasoline and oils.
The moment or "Leverage" that tends to bend a beam.
Tail Skid.
Engine Bed.
Fabric laid on the wing structure with the seams at an angle with the ribs.
Two Seater.
An aeroplane with two superposed lifting surfaces.
See FUSELAGE.
See LONGERONS.