In the helicopter shown; a vertical tail propeller is used to pre- vent rotation of the cab as the speed of the main blades is changed. Assuming that the tail propeller is not operating determine the final angular velocity of the cab after the speed of the main blades has been changed from I80 to 240 rpm. (The speed of the main blades is measured relative to the cab, and the cab has a centroidal moment of inertia of 650 lb.ft.s2. Each of the four main blades is assumed to be a slender rod 14 ft weighing 55 lb.)
In the helicopter shown; a vertical tail propeller is used to pre- vent rotation of the cab as the speed of the main blades is changed. Assuming that the tail propeller is not operating determine the final angular velocity of the cab after the speed of the main blades has been changed from I80 to 240 rpm. (The speed of the main blades is measured relative to the cab, and the cab has a centroidal moment of inertia of 650 lb.ft.s2. Each of the four main blades is assumed to be a slender rod 14 ft weighing 55 lb.)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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In the helicopter shown; a vertical tail propeller is used to pre-
vent rotation of the cab as the speed of the main blades is
changed. Assuming that the tail propeller is not operating
determine the final angular velocity of the cab after the speed
of the main blades has been changed from I80 to 240 rpm. (The
speed of the main blades is measured relative to the cab, and
the cab has a centroidal moment of inertia of 650 lb.ft.s2.
Each of the four main blades is assumed to be a slender rod 14 ft weighing 55 lb.)
Transcribed Image Text:-16 ft
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