Installing a belt reduction drive on the Predator 22 engine from Harbor Freight
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- čas přidán 6. 08. 2024
- This is a demo video showing installation of one of our reduction drive/propeller packages on the Predator 22 engine from Harbor Freight. This setup is perfect for small airboats, bowfishing rigs, hovercraft, and more. Visit www.lonestarhovercraft.com for more info.
- Auta a dopravní prostředky
LANDSCAPE MODE
LANDSCAPE!!!!!
My eyes are crossed now...!
Terrific video. Thank you for posting!
Ben, nice video and GORGEOUS reduction drive. In addition to LocTite on the key, an oversized washer should be installed over the shaft and secured with a retaining bolt, washer and lock washer at the end of the threaded crankshaft. You DEFINITELY don’t want ANYTHING going through the propeller, as you mentioned. Nice job!!!
Nice work
I'd like to make an ultralight biplane with this set up.
The belt type and pulley types don't seem to match. What am I missing?
Do you think this would be adequate for a tractor set up? Say for a 60x28 propeller.
Can this be used as a puller on a tail dragger?
Do you know what the weight on the engine is?
And second question why we dont screw the propeller straight with the engine shaft. Why we put a pulley and belt . I feel in that way we lose some rotation because the engine small pulley has to rotate twice to get a full rotation in the propeller pulley which is twice the size .
Some people do mount the propeller directly on the engine shaft, but with a larger propeller this exceeds the maximum rated speed of the propeller. By reducing the speed, you can swing a much larger propeller, which gives you more static thrust.
Hola con cuantas rpm queda la hélice con esta reducción?
Boa tarde onde compro uma redução desta ou o projeto?
thanks your video. I have 15hp engine 38inch two blade wooden prop. for airboat.10feet long. I use direct drive 2 person.my question ? total weight 2 person+hull+engine +etc. approximately= 300kg
is it appropriate? if it's not what should be? because mine is not powerfull. thank you for in advance.
Looks nice. I do have a question though as I'm a bit confused with the reason of the reduction drives I see fitted to these engines. These engines have a stock output rpm of 3600 which in itself isn't too high for a prop, ( well upto a point) so why do people take the governor out to raise the rpm only to fit a reduction drives to slow it back down again? Ive struggled finding the reason
Some people do run direct drive propellers on these engines, and it works well for certain applications. But generally a larger diameter propeller produces more static thrust, which is what you're after on slow moving craft like airboats and hovercraft (slow compared to aircraft, where prop selection is more complicated). So a reduction drive reduces your output speed, which means you can swing a larger diameter propeller on the same engine and get more static thrust. And removing the governor lets you rev the engine higher, getting more power assuming the valves and carb are set up right. So with the reduction drive, you can still turn a large propeller even when over-revving the engine. Hope this helps.
I'm a little new at this also, but by reducing the rotation of the prop by 50% and increasing the pitch of the prop , You get less vibration and noise and also increase the performance and thrust.
Great reduction drive! Can i install it on a 33hp B&S engine and what is its weight? Regards from France!
Thank you! This exact version won't fit a 33 hp B&S but we have a similar one with a cogged belt that will. The reduction drive that will fit a Briggs 33 hp engine weighs about 16 lbs. If you have any other questions, feel free to send us an email: info@lonestarhovercraft.com
Do you have a propeller to provide thrust in the opposite direction, to have the engine be in a tractor position?
Sure, we have propellers for both pusher and tractor installations. For details feel free to contact us through our website lonestarhovercraft.com.
So it doesn't need exhaust ports?
Do you make a psru for a 440a Kawsaki? Maybe plans or a used unit laying around?
Unfortunately no, we don’t have the adapters that will allow our lower pulleys to mount in tapered shafts.
One word: LANDSCAPE!
Hi I have a question I’m looking to get one of these for my little case tractor and I need a different exhaust set up where did you get the ones you have on there
We welded these up custom using some prebent exhaust tubing and pancake mufflers
Good vid
So you cant use the muffler??
Cheers
Correct, the stock Predator 22 muffler gets in the way so you have to relocate it or make a different header setup
Saving for you reduction drive prop combo but can you tell me were I can get that exhaust
We custom made and sold those a while ago but didn't like how loud they were, so we discontinued them. If you don't mind the volume of open pipes, we still have a few of them. If you contact us through our website, www.lonestarhovercraft.com, we can send details.
How much for this reduction drive and a prob spacer like the one used? I already have a prop ready.
SuperSprinter22 The reduction drive and prop spacer shown here are $799 plus shipping. You can order online at www.lonestarhovercraft.com or call or email us through the 'contact' page on the website. Thanks!
Nice job, would this redrive work for a single seat ultralight trike?
Juan Reimer sure, the reduction drive weighs 12 lbs and is suitable for a trike. With a 59" propeller you'll get around 150-160 lbs of static thrust.
This propeller can be used for aviation stuff? Like ultra light aircraft ? Or you suggest any other propeller for that
Sure, there are lots of these propellers flying on ultralights
This is for airboats I'm wanting to build a paraglider
We have a few of these on different types of aircraft. They can work on paragliders but it depends on what the weight requirement is. This drive weighs about 15 lbs.
Can this be setup in a "tractor" configuration? 😁👍👍🇺🇸
Doah, just read the other comments! 😁👍👍🇺🇸
Yes, it can be used in a tractor configuration too!
...очень интересно какую тягу в кг. выдаёт ? )))
It generates about 70 kg thrust with a 150 cm 3 blade propeller
How is the bottom pulley secured to the engine shaft? I didn't catch that.
We use a quick disconnect (QD) bushing
@@LoneStarHovercraft what is a quick disconnect bushing?
Please elaborate Purpose of belt reduction drive ??
It's to reduce output speed from engine shaft so you can safely turn a large propeller
@@LoneStarHovercraft sir, if by reducing speed, can we get max torque??max output fron engien ???
@@drfaizulhassan2319 Output from the engine (horsepower) is unchanged, but the reduction drive trades off speed for torque. It gives you higher torque at a lower speed.
Though, I am (Biologist) Veterinarian, DVM, M.Phil in Animal Reproduction, yet I have an intention to build my ultralight aircraft in upcoming months, I need guidance in this regard....sorry for disturbing You alot ...
Propeller RPM
For this ratio propeller speed is 2400 rpm
Vertical video... come on now!
Where is your addresses?
We’re located 20 miles west of Houston, Texas. You can email us at info@lonestarhovercraft.com if you’d like to arrange to visit.