PROPELLERS

The Optima Series 3 sport aviation propellers are carbon fibre, ground adjustable pitch propellers. Performance is at the highest level due to the unique high efficiency blade design. The Series 3 propellers also operate smoothly throughout their designed rev range.

Unlike earlier propellers, the Series 3 are ground adjustable using a 1.5" shank that enable the setting the propeller balde to the required pitch. As with all propellers they are at their most efficient at one optimal pitch setting, and it is this setting that we quote. The less a prop is changed from this the better the performance, a range of +/- 7 degrees outside this parameter should be viewed and the maximum variation for satisfactory performance.

The OS3 Hubs are CNC machined from aviation grade 7075 alloy plate (not a cheap casting) and treated for corrosion resistance (hence the gold colour). Hubs are designed for Rotax engines bolt hole patterns as standard and custom bolt hole patterns can be arranged for an extra charge. Overall diameter may vary a little from hub to hub.

Blade Information & Pricing

Propeller Description, Price in Australian Dollars. Sizes in inches, diameter first, pitch second, R or L refers to right or left hand rotation of the propeller when standing in the prop wash.

The new Dura-Tuff leading edge protection option is also worth considering. Dura-Tuff will help protect your propeller from damage caused by small stones, gravel and rain. It's a black composite material that is moulded into the propeller at the time of manufacture and costs only $88.00 per blade.

Complete Set Prices. Blade Type used with - 2 Blade Hub, 3 Blade Hub, 4 Blade Hub.

HOT Setups:

Microlight Trike with Rotax 582 + 3.47 box using 72 x 60 S R blades in a BOS3 - 3B hub, slightly under pitched. True size is 70 x 55 3B.

Skyfox/KitFox/Avid/Lightwing with Rotax 912 using 72 x 60 R blades in a BOS3 - 2B hub, slightly under pitched. True size is 70 x 52 2 Blade. A good performance propeller.

Skyfox/KitFox/Avid/Lightwing/Microlight Trike with Rotax 912 using 68 x 58 R blades in a BOS3 - 3B hub, slightly under pitched. True size is 66 x 48 3 Blade. A very smooth running propeller system !

Cobra Arrow with108hp Subaru with belt drive is using 72 x 60 R blades in a BOS3 - 3 Blade hub, pitched up.

KitFox/Lightwing with Rotax 582 + 2.62 box using 68 x 58 L blades in a BOS3 - 3 Blade hub, under pitched. True size is 66 x 45 3B. Can also be used as 2 Blade version with slightly more pitch.

TO ORDER please let us know the size, number of blades and direction of rotation for your propeller, the engine type and the bolt pattern required for your particular engine. The Rotax 912 for example has the either 100mm diameter between propeller bolt centers or 4 inches for the same measurement ...

Phone : (03) 9431-2131 Australia
Email : mail@aeroshop.com.au