main gear box oil temperature indicator

main gear box / main rotor transmission

main rotor transmission / main gear box

main transmission oil temperature gauge

turbine inlet temperature indicator

temperature indicator

twin temperature indicator

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

engine oil level indicator

gearbox / gear box

aircraft accessory gear box

engine accessory gear box

intermediate gear box

intermediate reduction gear box

rotor (system) gear box

tail rotor gear box

transmission / gear box

engine oil reservoir / engine oil tank

oil gauge / oil-gauge

main defense area (line) / main defensive position

main tank/ main fuel tank

main-rotor head / main-rotor hub

main-rotor hub / main-rotor head

gear-type oil pump

timing gear oil slinger

gear oil

main landing gear door

main landing gear strut

main landing gear (MLG)

camshaft gear (timing gear)

gear reduction unit / gear-reduction unit

powder temperature

temperature scale