Quantcast Pitch Change Assembly

 

Click here to make tpub.com your Home Page

Page Title: Pitch Change Assembly
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 



T-34C AIRCRAFT SYSTEMS FAMILIARIZATION
CHAPTER SEVEN
WORKBOOK
Figure 7-2 The Three Basic Blade Angle Stops
Blade angle directly affects the speed of the propeller. A high blade angle causes low prop speed.
Conversely, a low blade angle causes high prop speed.
In event of engine failure it is desirable that the blades go toward feather or low drag position in
order to maximize glide distance.
Pitch Change Assembly
Change of blade angle is accomplished through the pitch change assembly. The feathering spring,
located inside the hollow prop shaft, moves the blades to high blade angle. The counterweights,
attached to the base of each blade, assist the feathering spring in setting high blade angle when the
propeller is rotating. Low blade angle results when the servo piston is moved forward by high-
pressure oil. Connecting links, between the piston and the base of each blade, transmit the fore and
aft motion of the piston to rotate the blades. The beta feedback ring assists in controlling blade angle
from 17.5 to 5 degrees.
PROPELLER 7-3


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.