EN-1320
OPERATION AND INSTALLATION MANUAL
3.2. Blade Designation
CFR ( ) 230 - 433 ( )
1
2
3
4
5
1
Code for pitch change pin position
CFR
= pitch change pin for feathering and reverse ; pitch change forces
to increase pitch
2 Sense of rotation
blank = right-hand, tractor
3
Propeller diameter in cm
4
Consecutive number of basic type
(includes design configuration and aerodynamic data)
5
Code letter for design changes
Small letter: Modifications not affecting interchangeability
Capital letter: Modifications restricting or excluding interchangeability
3.3.
The complete propeller designation is a combination of both hub and blade designations,
separated by a slash mark ; for instance AV-725-1-E-C-F-R(W) / CFR230-433a.
3.4.
The hub-serial No. starts with the year of manufacture. All records of the propeller are
registered in respect to this number.
3.5.
The propeller for a certain aircraft-engine combination is always defined according the
hub- blade- spinner combination. For the actual blade settings, depending on the aircraft
model, the propeller logbook must be considered.
61-10-20
MODEL DESIGNATION
Page 3-2
2017-10-06
