Modular propeller | modular single blade propeller

Sunday, September 05, 2010

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Bolly Optima Series Two

The Bolly Optima Series 2 - Modular propeller system using a single blade which can be used (most commonly) directly to the engine prop flange (2 or 3 blade) or via a plate hub system of various blade numbers (2 to 5 blade) in 2 common bolt patterns.

Available in "Direct 2B or Direct 3B" , "Standard" 2, 3, 4 or 5 blade.

Blades Available

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

Product Code	Direct Size	Information	A$ Retail
BOS2 62 x 42 S R DT	59 x 40.5	62 x 42 Standard RH - Modular (single) blade	$279.00
BOS2 62 x 39 S R DT	59 x 38.0	62 x 39 Standard RH - Modular (single) blade	$279.00
BOS2 62 x 36 S R DT	59 x 34.5	62 x 36 Standard RH - Modular (single) blade	$279.00
BOS2 58 x 38 N L DT	59 x 36.5	58 x 38 Narrow LH - Modular (single) blade	$269.00
BOS2 58 x 33 N R DT	55 x 31.5	58 x 33 Narrow RH - Modular (single) blade	$269.00
BOS2 56 x 26 N L DT	55 x 24.5	56 x 26 Narrow LH - Modular (single) blade	$259.00

A complete "Direct" Hub Assembly includes: 2 @ Alloy Plates, 1 @ Washer Plate & all engine mounting hardware to suit M8 threads, plus full instructions & QA documents. Reduces quoted diameter by 3 inches.

A Complete "Standard" Hub Assembly includes: 2 @ Alloy Plates, vibration isolators, 6 @ pedestals and full AN hardware (the appropriate number per assembly) including bolts, washers and nylocks. Also included (but we need to be advised what is needed) is the front 'Washer' plate and bolts for engine / gearbox attachment .... plus full instructions & QA documents. It is size for size correct.

We also have the EXTENDED version (3 blade only) of the "Standard Style" hub. It makes the world of difference for that little extra bit of climb. Adds 1 inch to overall quoted diameter.

Product Code	Information	A$ Retail
BOS2 - HUB-D3B	Complete Direct 3B hub assembly, inc engine mounting set	$95.00
BOS2 - HUB - D2B	Complete Direct 2B hub assembly, (include spacer for 3rd blade)	$105.00
Engine Bolt Set	6 sets of M8 x 75 bolts, washers and nylock nuts	$21.00
Washer Plate 75	Washer Plate to suite Rotax (etc) 75mm PCD bolt pattern, Anodised purple.	$21.00
BOS2-HUB1-2B	Complete 2B hub assemble - for Rotax (etc)75mm bolt pattern	$160.00
BOS2 - HUB1- 3B	Complete 3B hub assemble - for Rotax (etc)75mm bolt pattern	$215.00
BOS2 - HUB3- 3B	Complete 3B hub assemble - extended diameter for rotax (etc) 75mm bolt pattern	$215.00
BOS2 - HUB1- 4B	Complete 4B hub assemble - for Rotax (etc)75mm bolt pattern	$225.00
BOS2 - HUB1- 5B	Complete 5B hub assemble - for Rotax (etc)75mm bolt pattern. Special order only	$240.00
4 inch Hubs	Available to Special order only, 2B, 3B, 4B, 5B hubs to suite a 4inch PCD bolt pattern	call

Complete Set Prices.

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

Using Blade plus	Direct 2B	Direct 3B	Std 2 Blade	Std + Ext 3 Blade	Std 4 Blade
BOS2 62 x 42 S R DT	$655.00	$920.00	$755.00	$1085.00	$1,370.00
BOS2 62 x 39 S R DT	$655.00	$920.00	$755.00	$1085.00	$1,370.00
BOS2 62 x 36 S R DT	$655.00	$920.00	$755.00	$1085.00	$1,370.00
BOS2 58 x 38 N L DT	$635.00	$890.00	$735.00	$1055.00	$1,330.00
BOS2 58 x 33 N R DT	$635.00	$890.00	$735.00	$1055.00	$1,330.00
BOS2 56 x 26 N L DT	$615.00	$860.00	$715.00	$1025.00	$1,290.00

Hot Setups : 62 x 36 S R 3B is terrific on Rotax 503 2.58 box, especially Powered Parachutes. Some customer trim it to 59 inch for Aerochute use - works very well.

62 x 36 S R 3B is a great choice with Rotax 447 2.58 where lower rpm help lower operating temperatures. (we know, as we use it on our own trike).

Use 59 x 40.5 S R 3B (direct hub plus 62 x 42) for faster aircraft (Rotax 503 2.58 box).

59 x 38 S R 3B (direct hub plus 62 x 39)is an popular choice on the " Aerochute ", Rotax 503 2.58 box.

59 x 39 N L 3B (58 x 38 in Extended 3B Hub) is perfect with Rotax 447 2.58 box in Tractor applications, or belt drive pushers. Many very happy customers are using this setup.