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View Full Version : rotax 582 with a 2.6x 1 reduction



Oran
10-16-2014, 02:59 PM
any body seen this set up on a air boat?

Papee
10-16-2014, 04:53 PM
There is a father and son running the Rotax motors here in my area. One is running that same motor. Not sure what the other is.

aerokirk
10-16-2014, 06:37 PM
Hi Oran ... welcome to the site! Just curious .... what happened to the Challenger? Wish I could offer some help but I'm running a continental 4a084 on mine. There's quite a bit of experience here on this site though.

Oran
10-17-2014, 08:05 AM
I hit a power line one day coming in for a landing i tore the plane up pretty good my wife want let me build another one so two years after the crash I dicided. To put put the engine on a airboat

Doozit20
10-17-2014, 01:50 PM
Glad to see you weren't majorly hurt with the crash. Welcome to the site and I think that will be a great engine for a mini. Ought to really scoot along. How much hp does that engine have? And what size prop are you spinning?

Oran
10-19-2014, 08:41 PM
I have not decided yet I am trying to find out what size prop I will be able to spin with the rotax 582 with a 2.6 1 I think about a three blade warp drive 64"but not sure I hope I get some replies!

Doozit20
10-19-2014, 08:52 PM
Take a look at the whirlwind 3 blade. Your prop speed should be right in there with its performance curve and ive read some good reviews on them. And I think they will flex less so itll add more thrust. Atleast thats my take on it.
Steve

Oran
10-19-2014, 09:03 PM
ok I will check it out thanks !!!:-P

Oran
10-19-2014, 09:09 PM
hp on the rotax 582 is 65 and it has 30 hrs on rebuild by rotax rick in Naples Fl.

Doozit20
10-19-2014, 11:08 PM
There are many props available thatll work with that kind of horsepower. I would call whirlwind and ask if thwy would suggest there mini prop. If youd like I can talk to a buddy at water walker props and see if he has a prop thatll work with that engine setup. They make very wide props for big boy motors but ya never know. Though they are a little pricey I think.

aerokirk
10-20-2014, 10:04 PM
I agree ... call Whirlwind and talk to Patti, she's really knowledgeable on prop applications.

She spec'd out mine and it was perfect for the application.

eskimoboy
10-23-2014, 07:47 AM
This guy has a 618 rotax on a 10ft aluminum hull.
http://www.southernairboat.com/classifieds/showproduct.php?product=81251

eskimoboy
10-23-2014, 07:50 AM
Here's a hull
http://www.southernairboat.com/classifieds/hulls-cages-rigging-trailers-etc/p81243-11-5-x-7-gilleo-hull-and-or-trailer.html

Oran
12-04-2014, 12:59 PM
I final got my 116.5 hull from marty brays I ordered some frog spit t put o bottom has any body tried spraying it with a HVLP gun does it have to be a special tip I have sprayed some pretty thick paint with it no problems

Doozit20
12-04-2014, 01:36 PM
Ive only used the steel flex and a roller. Its pretty thick stuff. Id say call the manufacturer and get there take on it? Glad to see your back at it.

Oran
12-04-2014, 02:55 PM
ok I will us I have been waiting for the hull to be built I had the cage built from air tech ultra lights I have just about everything to start putting it together I am at work for two weeks .

papajack
04-05-2015, 06:45 PM
My 583 with the same gear ratio turns a 2 blade 70" Whirlwind Razor X-Core. Rotax Rick also went through mine. Pitch is now set to hold WOT on trailer just below 8k rpm. Had Rick put a clutch in my C box. Great addition!!! My hull is Alumitech 12' x 7' ultra light.

Oran
04-05-2015, 08:28 PM
I am in the middle of up grading to a c box with 3.47 to 1 with a 4 blade 72 inch with a clutch warp drive prop I had a 66 inch 3 blade razor x whirl wind prop it wasn't producing enough thrust .

papajack
04-06-2015, 09:51 AM
You might want to look for a c box with 2.6 to 1 gears. Power band on 582 (583) is 6-6.5k rpm. You need prop speed up around 2.5 k to get to most out of whirlwind razors. I ditched my warp drives after running razors. JMO

Oran
04-06-2015, 10:47 AM
I. Am getting advice from airtech ultralight they they build air boats with this engine everything is bought and on the airboat I have it at their shop fixing a idle problem. So I hope they know what they air talking but I agree that that the whirl wind props are better than the warp drive props I was just trying to go with the set up that they were using
I am going to work for two week's I will keep you posted when I come back from work.

dr.peck76
04-07-2015, 03:15 PM
just a question. I don't hear much talk about the Sensenich props. Is there any specific reason? They've been around forever and look like a quality product.....

Doozit20
04-07-2015, 08:29 PM
Ok everyone dont bash me on this one....but go take a look over on the southernairboat.com site and type in the prop you got. I think the main reason you dont hear much over here is because minis usually dont have the hp to spin the sensenich props like you have.

Oran
04-07-2015, 08:55 PM
I just getting into airboat's but I have not heard of that prop manufacturer mostly whirl wind

dr.peck76
04-07-2015, 10:23 PM
Yeah, I went to their website after I asked the question and the smallest they build is 66" from what I could see. They rated it for 100 hp. Sorry, there I go talking before thinking again. The prop did retail at about $650. How does that compare to the whirlwind?

Doozit20
04-07-2015, 10:56 PM
Sensenich has been around forever and I mean forever. My dad had a sensenich wood prop on his 65 continental about 30 years ago. They were flying on planes well before that Im sure. The composites are generally newer stuff. Lighyer weight and what not. To put in comparison the 3 main ones that I can think of : Sensenich, whirl wind, and warp drive.....Sensenich are generally more pushy props where warpdrive are lighter with the thinner blades and they give more snap for spinning up the rpms. I believe wirl wind is in the middle somewhere but im not possitibe. Everyone has there opinions. An example: my buddy has a Lycoming 0-540 putting out somewhere around 300+ hp. He had a 3 blade sensenich prop (cant tell you which series it was) and he switched to a 6 blade warp drive at the same diameter. From what he says the warp drive has way more "snap" like a stock car when you smash that pedal where the sensenich with the wider blade would just keep gaining speed. I guess it really boils down to what you are looking for. Ive also heard that whirlwinds excaliber blades are some bad momas too..l like I said those are kinda in between the two. My opinion run that badass prop yoy got on there. I think youll like it. Just my opinion btw.
Steve

Oran
04-09-2015, 09:35 PM
Yes th whirl wind props cost more I have a 3 blade 66 inch adjustable pitch was abut $ 1300