two-position propeller

two-position propeller

[′tü ¦pə¦zish·ən prə′pel·ər]
(aerospace engineering)
An airplane propeller whose blades are limited to two angles, one for take off and climb and the other for cruising.
References in periodicals archive ?
and began work on a hydraulic, two-position propeller that provided efficiency at takeoff and landing--the two most critical flight times.