CHAPTER 61
PAGE 3
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RA - FLUGZEUGBAU GmbH
SERVICE MANUAL EXTRA 200
PAGE DATE: 1. July 1996
61-00-00 GENERAL
The EXTRA 200 is equipped with a MTV-12-B-C/C 183-
17e propeller. Maintenance work or overhaul of the propel-
ler requires consultation of the propeller manufacturer MT-
Propeller (refer to Chapter 01).
61-10-00 PROPELLER
The MTV-Propellers are made of laminated wood encased
in glass-fiber reinforced plastic, which is painted to make
it waterproof.
The pitch change is conducted by a propeller governor.
Once an engine rotational speed is selected it will be held
constant at variations of airspeed and power.
Mechanical stops for low pitch and high pich limit the pitch
change level. In case of the oil pressure of the govenor to be
lost, the blades automatically return to high pitch, if the
counterweights are installed. The oil pressure is single
acting.
I M P O R T A N T If replacement of the propeller govenor control cable is
necessary, renew the sealing of the bushing grooves and
gaps at the engine side of the firewall. Use PRC-812
(Products Research & Chemical Corporation, USA)
firewall sealant.
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