2 blade propeller | blade propeller | one piece propellers

Sunday, September 05, 2010

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Bolly Optima Series One

These are (1) one piece propellers featuring optimised pitch distribution, blade shape and weight distribution to deliver the best efficiency, lowest weight and smoothest running. This is an expensive manufacturing option and can only be undertaken for specific applications. All BOS-1 props are supplied factory balanced. Painted tips (as shown) is an option at an additional cost.

Product Code	Information
BOS1 - xxxx	This prop is undergoing further development
BOS1 54 x 24 N L	This prop has proven to be very popular and of excellent performence on power assisted hang guiders. Just 720gm with 1 inch shaft diameter. See below information re Airtime Products / Explorer
BOS1 54 x 24 N L M	As per the above 54 x 24 but with a changed hub size enabling it to be used on the popular 'Mosquito' brand powered hang glider. The Mosquito prop is thinner in hub depth.
BOS1 54 x 22 N R	Almost identical to the above with a touch less pitch for an extra 200rpm and coursen the RH rototion. Also used on backpack 'chutes' (diameter trimmed) about 45 kg thrust.
B I S 1 54 x 22 SR	This is a model propeller (1/2 Scale) which has been used by many for various applications such as back packs twins etc. At such low pitch it must be high rpm use. Has been tested to near 6000 rpm

Price

The below prices are A$ retail only, including gst. For gst exempt export, deduct 1/11th.

Series 1 codes	Product description	Type	A$ Retail
BOS1 54 x 24 N L	54x24 Narrow, LH rotation	2 blade	$495.00
BOS1 54 x 24 N L M	54x24 Narrow, LH rotation	2 blade-Mosquito hub	$509.00
BOS1 54 x 22 N R	54x22 Narrow, RH rotation	2 blade	$435.00
BOS1 36 x 14 S R	36x14 Standard, RH rotation	2 blade	$315.00

Airtime Products: The BOS1 54 x 24 / 22 N L props were initially developed and sold in conjunction with Airtime Products of Airlie Beach, Queensland, Australia. Airtime manufactured the popular 'Explorer', Radne powered hang glider (featuring our propellers). The production of the Explorer is now under new management. See http://www.airtimeproducts.com.au for more details.

We continue to supply and service anyone who wishes to purchase these popular propellers, including the (new) Airtime and any of the "original" customers. Please Note : We are not in a position to offer technical support re engine / gearbox / prop combinations (we are prop manufacturers who fly bigger machines).

Please Note : We are not in a position to offer technical support re engine / gearbox / prop combinations (we are prop manufacturers who fly bigger machines).

Also see our BOS4 (folding) prop information sheet or web page.

Also Note: We have no plans for any new BOS1 sizes at present, although several manufacturers have spoken to us and we expect more sizes in the fullness of time.