landing gear placard speed

supersonic speed (exceeds speed of sound / Mach 1)

variable-speed with speed control

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

Nr gauge (Nr = speed of rotation) / rotor speed sensor

Motor PWM speed separated from PID speed

gear speed decreaser

idler direct speed gear

direct speed gear

fourth and fifth speed gear synchronizer

third-speed gear

camshaft gear (timing gear)

gear reduction unit / gear-reduction unit

maximum ground speed for water landing with floats inflated

landing speed

damper landing gear unit

fuselage and landing gear clearance zone

landing gear

landing gear compartment

landing gear extension

landing gear bay

landing gear design

landing gear door

main landing gear door

nose landing gear door

aft landing gear

bicycle landing gear

body landing gear

bogie-type landing gear

castor landing gear

dual-tandem landing gear

fixed landing gear

forward retracting landing gear