Interpret Product Codes

Overview

Airmaster propellers are denoted by a combination of letters (L) and numbers (n) which describe the configuration of that system or part. Below is a full description of these.

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Documentation

Airmaster Product Codes

Airmaster propellers are described by a combination of letters and numbers which describe the configuration of that system or part.

Systems

Product	LL	AP (Airmaster Propeller)
Hub	nnnLLL	Hub descriptor
Blades	LLnnL	Blade descriptor
Extension	Lnnn	Extension descriptor
Spinner	nn.nL	Spinner descriptor
Controller	nnnLn.n	Controller descriptor
Slipring	LL	Slipring descirptor

Example AP420CTFH-SNR70E-RE3.75-9.0M-200F1.5-RM

Hubs

Series	3	57mm ferrule ~40hp /blade
	4	70mm ferrule ~50hp /blade
	5	80mm ferrule ~60hp /blade
	6	95mm ferrule ~70hp /blade (in development)
	7	105mm ferrule ~90hp /blade (in development)
No of blades	2,3,4,5	2 and 3 are most common
Mount	0	Rotax mount (4in PCD), 13mm drive lug, 5/16in bolt AN5
	1	Rotax mount (4in PCD), 13mm drive lug, 3/8in bolt AN6
	2	Rotax mount (4in PCD), cast hub (legacy)
	3	SAE-1 (4.375in PCD) 5/8in drive lug 3/8in bolt AN6
	4	SAE-1 (4.375in PCD) 5/8in drive lug 7/16in bolt AN7
	5	SAE-5 (4.75in PCD) 5/8in drive lug 7/16in bolt AN7
	6	SAE-6 (4.75in PCD) 3/4in drive lug 1/2in bolt AN8
Power		Standard
Power	H	High
Rotation	C,A	Clockwise or Anti-clockwise
Special Funcions	F, R, P	Feather, Reverse, PreRotate
PC motor	(x,nnn)	x Make, nnn gear ratio

Example 420CTFH

Blades

Manufacturer | Rotation | Diameter | Profile

Manufacturer	WW	Whirlwind
	SN	Sensenich
	WD	Warpdrive
	BY	Bolly
	KV	Kiev
	ST	Sterna
Rotation	L,R	Left, Right
Diameter	xx	expressed in inches
Profile	x	Letter denoted by manufacturer

Example SNR70E

Extension

Engine | Type | Length | Prop Flange

Engine	R	Rotax, 13mm bush, 5/16 UNF bolt
	C	Continental (SAE-1) 3/8 UNF bolt
	L	Lycoming (SAE-2)
	V	Viking
	H	Hirth, no bush, 8mm bolt
	Am	Aeromomentum
	I	Limbach
	J	Jabiru
	S	Skytrax
	U	ULPower
	VN	Verner
	V	Viking
Type	S	Spacer
	E	Extension
	A	Adapter
Length	x.xx	expressed in inches
Prop Flange	R	Rotax 4in PCD
Prop Flange	C	SAE-1

Example RE3.75

Spinner

Diameter | Finish

Diameter	xx.x	Diameter in inches
Finish	P	Polished
	M	Matt (suitable for painting)
	W	White (painted gloss_

Example 9.0M

Controller

Series | Special Function | Loom length

Series	xx.x	200 is current series
Special Function	F	Feathering
	R	Reversing
	S	Standard
Loom length	x.x	Length in metres

Example 200F1.5

Slipring

Type | Length (when used)

Type	RS	Rotax Standard
	RM	Rotax Mini
	US	UL Standard
	UC	UL SAE-1
	JS	Jabiru Standard
	LS	Lycoming Standard
Length	xx	Length of extender in mm

Example RM