AP420 System Overview

• AP420 Hub
• Sensenich Blades
• Range of Spacers
• Range of Spinners
• AC200 Control system

Power Capacity Geared Engine 120hp (89.5kW)
6cyl direct drive 120hp (89.5kW)
4cyl direct drive 90hp (67kW)
Maximum Speed 3300rpm
Weight 19.6lbs (9kg) including spinner but dependent on blades selection
Mounting Flange RP502 (Rotax 4in [101.6mm] PCD with 13mm bush) 5/16” UNF bolts
Engine Type Rotax 912, 912S, 914 or similar
Jabiru 3300, 2200
Available Blade Types Sensenich
Available Configurations Clockwise, Anti Clockwise / Tractor

*Can depend on blade choice

Extensions Rotax 0.5in to 4in (12mm to 100mm)

Std and 2in (50mm)



8.3in (210mm), 9.0in (228mm)

10.3in (261mm), 11.2in (284mm)

12.2in (310mm)


AC200F, AC200, Manual only

Slipring Standard

Loom Length

Loom Extension 20in to 216in [19in inc]

(0.5m to 5.5m [0.5m inc])
Brushblock 20in (0.5m)

AP420 Hub
• Two blade
• Fully machined, one piece hub
• Precision pitch change mechanism
• Simple setup
• Electric actuation
• Removable blade assembly cartridge
• Full feathering options

Blade Options
Superior blade technology from Sensenich Propeller Co (USA)

• Solid stainless steel inlaid leading edge provides excellent protection against airbourne water damage
• Aerodynamically advanced ‘hollow composite’ design for high performance and low weight
• Superb finish quality in high gloss white with red tip and black back

Spacers and Extensions
• Rotax 4in bolt pattern R
• Sizes 0.5in to 4in
• Machined from billet 6061 T651 Aluminium
• SS Drive lugs
• AN mounting hardware

• Quality spun aluminium cone and backplate.
• Sizes 8.3,9, 10.3, 11.2, 12.2in
• Finished in Polished, Matte or White
• Fully adjustable front support
• AN Hardware used throughout

AC200 Control System
• Simple selection of engine speeds
• Hold speed adjustable in flight
• Modern ‘solid state’ governor
• Full manual overide
• Clear indicators
• Fully automatic ‘Feather available


AP3and4 seriesOperatorManualV3.pdf

Airmaster Propeller Logbook.pdf

Airmaster brochure 420.pdf

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