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Cheap props for the Quickie

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11 years 7 months ago #1098 by haiqu
There seems to be a huge source of a particular ex-military drone propeller on the market. Research shows that no-one really knows what they were used on but many are in unused condition and going very cheap.

The interesting part is that it's a 44" wooden prop, the same as the original used on the Quickie, and being off a drone it was probably run by a similar engine size.

The prop is made by U. S. Propellers, Inc. of Connecticut — no, they don't have a website — and the part number is 22008. Here's a look at one:



Anyone want to try one out and let us know if it works? :woohoo:

Rob
p.s. Post #100 ... it's t-shirt day!
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11 years 7 months ago - 11 years 7 months ago #1099 by haiqu
Well I finally found out what that prop comes from. It's off a Northrop KD2R5 "Shelduck" Basic Training Target Drone, and is normally powered by a 95hp McCulloch 0-100-2 engine. At a launch weight of 360 lb these things will fly at 370 mph. Freow!

Here's a photo:



They were also used by the British Army in the early 60s as photographic reconaissance aircraft, and in this capacity had a launch weight of 442 lb and top speed of 201 mph.
Last edit: 11 years 7 months ago by haiqu.

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11 years 7 months ago #1111 by haiqu
Update: One of these props — with a small chip on one end but otherwise looking brand new — just sold on eBay for $256.00

There's your yardstick (pun not intended) for bidding on them.

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9 months 2 weeks ago #1707 by Armilite
44" x ?? Pitch doesn't mean it will work on all Engines.

44" x 25 turned 3600rpm Direct Drive needs 22.275 hp. Onan 22hp.

The 485 lb MTOW really needs 29.5hp.

A 44" x 33  turned 3600rpm Direct Drive needs 29.404 hp.

A Honda/Clone 460 Single made 37.37hp@5000rpm, at 3600rpm it was making 30.68hp@3600rpm. 32.46hp@3800rpm, 33.99hp@4000rpm. The Rotax 912 is turned 5500rpm!

All Engines Reliability has more to do with WHO built it, WHO is maintaining it, and WHO is Flying it!

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