Products

AP420 System Overview

AP430F-SNR68C

Airmaster Propeller System Complete
• AP430 Hub
• Sensenich 68in blades
• AC200 Feathering controller

How Do I

Interpret AC200 Indicators

Normal Operation

No Speed Signal

When you first power up the control system in Auto with the engine stopped, you should see the FINE led flashing orange.

This is normal and indicates there is no speed signal arriving from the propeller (because the engine is stopped)!.

This will only occur while the engine is stopped. If you get this indication while the engine is running, it could indicate a possible fault condition and should be investigated.

Propeller At Fine Pitch Stop

Once you start your engine you should see the FINE led flashing green.

This indicates controller is attempting to drive in the fine direction, but the propeller is already at the fine pitch stop.

You may see this indication many times when the throttle is only partially open. It shows the control system is working properly but that the current selection of speed and throttle do not allow for governing to the set speed.

Constant Speed Governing

When you are flying, you may see an occasional flick of orange on either the FINE or COARSE leds. This is the normal operation of the propeller making very fine adjustments to the propeller pitch to keep the engine speed constant.

If there is a large change in throttle setting or aircraft attitude (or you have selected a different engine rpm), one or other of the indicators may stay on for longer.

If you are in very calm air, with no change in throttle, you may see no indications. This is normal.

Fault Indications

Slip ring Brushes Worn Out

This is actually a general warning that there is an open circuit in the electrical system. The most likely reason for this is that the main slipring brushes are worn out.

If this occurs, check or replace the slipring brushes and clean the slipring.

If this does not cure the fault contact Airmaster for further advise.

Propeller At Coarse Pitch Stop

During automatic operation, this indicates the controller is attempting to drive in the coarse direction, but the propeller is already at the coarse pitch stop.

This is most likely to occur if you are flying at a higher than normal altitude, at high power settings. It would be a clue that the coarse pitch stop is currently set too fine.

The coarse pitch stop is set at the factory to a nominal value, but it is expected that you will have to adjust this to your particular conditions. Please refer to the Operators Manual.

Over current

A solid red indicator in any of the circuits of FINE, COARSE or FEATHER is an indication that the propeller is drawing too much current.

If this occurs in AUTO operation, constant speed regulation will be suspended. The indicator can be cleared by switching to MAN.

If you need make a pitch adjustment for safety reasons, you can attempt to do so in manual, but it is advised that you investigate the problem properly before further automatic operation is attempted.

Order A Propeller

How to order an Airmaster Propeller Step 1 – Preliminary Enquiry Email or Call Airmaster propellers (or a registered reseller) and outline what aircraft and engine you have, and what you want to achieve be use of the propeller. We will let you know what options we can offer and what benefits you can expect.
Step 2 – Information Collection Provide your details for us to fill out an order request. Typically we will want to know your contact details, delivery details, aircraft and engine details and the type of propeller you have chosen. We have a form that can help in the collection of this information.
Step 3 – Order Generation Airmaster will take the information you have provided and make up an official order for you. This will lay out clearly all the details of what has been ordered, how much it will cost and where it will be delivered to. You will also be given an estimated shipping date.
Step 4 - Order Confirmation Once you have checked that the details on the order are correct (address etc), sign and fax the order confirmation back to Airmaster. Our fax number is +64 9 833 1796
Step - 5 Production With the order confirmed, Airmaster will create your propeller as requested. This part of the process takes ~2 weeks. Although the main components are held in stock, since each propeller is a unique combination of hub, blades, spinner etc, each propeller must be finally assembled to the specific customer requirements.
Step - 6 Invoice As the propeller nears completion, Airmaster will issue you with an invoice for payment. This may be made by international bank transfer. There will be instructions on how to do this printed on the invoice as shown.
Step - 7 Shipping Once funds are recieved, your propeller will be shipped by UPS courier to your door. This will take 2-5 days depending on your region. The delivery process can be tracked on the UPS web site. http://www.ups.com/tracking/tracking.html You should also recieve automatically updates from UPS at the email address you provided on your order from.
Step - 8 Recieving The delivery service used is a full service, so delivery has been arranged to your door. In some countries there may be additional fees to pay to the relevant authorities (local taxes or import duties). This can usually be arranged through UPS but you may wish to check your particular situation here.

Interpret Product Codes

Airmaster Product Codes

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

Hub	APnnLLL	Hub descriptor
Blades	LLnnLL	Blade descriptor
Extension	Lnnn	Extension descriptor
Spinner	nn.nL	Spinner descriptor
Controller	ACnnnL	Controller descriptor
Electrical	nnnLL	Electrical loom descriptor

Example AP332CTF-WDT68R-R350R-10.3P-AC200F-2RM

Manufacturer	AP	Airmaster Propeller Hub
Series	3	60mm Ferrule ~40Hp per blade
Series	4	70mm Ferrule ~60HP per blade
No of Blades	2, 3	currently 2 and three port hubs are available
Version	0-9	Iterations of design within a series
Rotation	C, A	Clockwise or Anticlockwise
Orientation	T, P	Tractor or Pusher
Special Functions	F, R	Feather , Reverse

Example AP332CTF

Blades

Manufacturer | Manufacturer Code

Manufacturer	WD	Warpdrive
	SN	Sensenich
	KV	Kiev Props
Code Warpdrive	WD	N, T	Std Profile, Tapered Profile
		xx	Diameter in inches
		R, L	Right hand, Left hand
Code Sensenich	SN	R, L	Right hand, Left hand
		xx	Diameter in inches
		xx	Profile
Code Kiev	KV	R, L	Right hand, Left hand
		xx	Diameter in inches

Example WDT68R

Extension

Engine mount | Length

Engine Mount	R	Rotax 4in PCD, 13mm bush, 5/16 UNF bolt
	H	Hirth 100mm PCD, no bush, 8mm bolt
	C	Continental (SAE-1)
	L	Lycoming (SAE-2)
Length	xxx	Length in inches x.xxx

Example R3.75

Spinner

Diameter | Finish

Diameter	xx.x	Diameter in inches
Finish	P	Polished
	M	Matte (suitable for painting)
	W	Painted gloss white

Example 8.3M

Controller

Manufacturer | Series | Special function

Manufacturer	AC	Airmaster Controller
Series	xxx	200 is current series
Special Function	F	Feather
Special Function	R	Reverse

Example AC200F

Electrical

Loom | Slipring

Loom	x.x	Loom length (in metres) including brushblock section
Slipring	RS	Rotax standard
Slipring	RM	Rotax mini
	JS	Jabiru standard
	JE	Jabiru 2in extension

Example 2.0RS

Testimonials

Rupert Gruen

"Airmaster has been awesome with customer support, and the unit is a joy to work with, a really quality product."

Rupert Gruen, Canada

Pelican
Rotax 914
Airmaster AP332F-WDT68R

Rupert Gruen from Kelowna BC, Canada writes:

I built my Pelican PL with a Rotax 914 turbo engine. I wanted to get the most performance out of my aircraft, as I live in a mountainous region. The 914 turbo charged engine lends itself to a prop like the Airmaster, as the constant speed function permits one to fully utilize the full power of the engine through all phases of flight, and especially for take-off.

As I live very close to the Rotech Canada facility in Vernon BC, [distributors for Rotax engines in Canada and the USA] I have had been able to get a lot of useful insight and information regarding my engine and propeller combination from them. My prop was factory set for t/o, climb and cruise at 5700, 5500 and 5000 rpm respectively, as per Rotax recommendations. However, I now only use t/o and cruise settings for my everyday flying. The Rotax 914 max rpm is 5800, the engine redline. My Grand Rapids EIS RPM warning setting is set for 5700, so I rarely exceed the 5800 rpm limit, and if I do, it is for a few seconds only. I get 39,9 inches of boost[MAP] and 5700 rpm for t/o, and the Airmaster keeps it there, or within 50 to 80 rpm of that figure.

After my initial climb out, usually for 3 to 4 minutes, or to a safe altitude, I set the Airmaster controller unit to climb mode, which settles the rpm in at 5450 to 5500at 35 inches. [max continuous operation boost.] When talking to a Rotax representative from Austria a while back, he said how much the 914 likes to operate at this rpm range, and how 5000 rpm is too slow, and tends to “lug” the engine along. So I took his advice, and have been using the higher rpm ever since.

The neat thing is, the Airmaster keeps this rpm up there even at lower MAP settings, so I now cruise along at between 5400 and 5500 all the time, and get really good airspeed results to boot. I can typically maintain 5450 rpm at MAP settings at even 28 inches. The 914 - Airmaster combo permits me to get sea level performance up to 16000 ft. It is nice to have the turbo power in an emergency, and a prop like the Airmaster, which responds so well to a full power scenario when one needs it.

Airmaster has been awesome with customer support, and the unit is a joy to work with, and easy to maintain and service. A really quality product.

I have 145 hours on the prop now, and love it. I would be happy to chat with any owners who would like to talk props. rupertgruen@shaw.ca

Thanks. Rupert Gruen
Pelican 914 C-GRPW.