Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 11-03-2014, 12:34   #1
Registered User

Join Date: Apr 2010
Location: College Station, TX
Posts: 45
Question about Air-X Wind Generator

Hello everyone,

So I just bought a boat that came equipped with an air x wind generator
but for the record I'm completely clueless about this type of equipment and electrical systems in general.......no point hiding it!! : )

So, here's the question

I just mounted the bracket with the blades back on, but the blades just won't turn over even with moderate winds of 5-10 knots?

What gives??

Thank you in advance

Andy
__________________

__________________
andyv94 is offline   Reply With Quote
Old 11-03-2014, 12:44   #2
Registered User
 
Mike OReilly's Avatar

Join Date: Sep 2011
Location: Good question
Boat: Rafiki 37
Posts: 4,038
Re: Question about Air-X wind generator

Hi Andy, I used to own an Air-X. Now have a SilentWind. Our old Air-X required about 8 knots before it would start moving, but didn't start to generate much of anything until about 12-15 knots. So yours might be OK. Get it out in 15 knots and see what happens.

BTW, I assume the blades rotate freely by hand. They're not seized in any way, are they?
__________________

__________________
Why go fast, when you can go slow.
BLOG: www.helplink.com/CLAFC
Mike OReilly is online now   Reply With Quote
Old 11-03-2014, 13:32   #3
Registered User

Join Date: Apr 2010
Location: College Station, TX
Posts: 45
Re: Question about Air-X wind generator

Thank you for the reply, yes the blades rotate freely
__________________
andyv94 is offline   Reply With Quote
Old 11-03-2014, 13:38   #4
Senior Cruiser
 
Jim Cate's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 11,468
Re: Question about Air-X wind generator

Andy, another possibility is that there is a short circuit in the output somewhere. When the output is shorted, it takes much more wind to rotate the prop... this is how you shut it down via the three position switch (which may or may not have been installed by the PO).

Cheers,

Jim
__________________
Jim and Ann s/v Insatiable II , lying Port Cygnet, Tasmania once again
Jim Cate is offline   Reply With Quote
Old 11-03-2014, 15:19   #5
Registered User

Join Date: Apr 2010
Location: College Station, TX
Posts: 45
Re: Question about Air-X wind generator

Ok never mind there's a little storm coming in and that thing is spinning like crazy!!!

Loud too, sounds like a propeller jet engine......damn
__________________
andyv94 is offline   Reply With Quote
Old 11-03-2014, 15:24   #6
Registered User
 
Mike OReilly's Avatar

Join Date: Sep 2011
Location: Good question
Boat: Rafiki 37
Posts: 4,038
Re: Question about Air-X wind generator

Quote:
Originally Posted by andyv94 View Post
Ok never mind there's a little storm coming in and that thing is spinning like crazy!!!

Loud too, sounds like a propeller jet engine......damn
Sounds like it's working well. Our old Air-X would scream like a Banshee when the wind piped up. Unfortunately they are known to be noisy beasts. It's a big reason why I went to our new generator ... I hated the noise of the Air-X. But at least you have power .
__________________
Why go fast, when you can go slow.
BLOG: www.helplink.com/CLAFC
Mike OReilly is online now   Reply With Quote
Old 11-03-2014, 15:31   #7
Senior Cruiser
 
FSMike's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Bahamas/Florida
Boat: Solaris Sunstar 36' catamaran
Posts: 2,654
Images: 5
Re: Question about Air-X wind generator

Blades are available for them that quiet them down considerably and work at least as well. Can't remember the name, try a Google search on the generator, there has been lots of discussion.
__________________
Sail Fast Live Slow
FSMike is offline   Reply With Quote
Old 11-03-2014, 15:35   #8
Registered User

Join Date: Apr 2010
Location: College Station, TX
Posts: 45
Re: Question about Air-X wind generator

Thank you guys!!! There's tropical little afternoon storms seem to come out if nowhere here in the Caribbean!!
__________________
andyv94 is offline   Reply With Quote
Old 11-03-2014, 16:16   #9
One of Those
 
Canibul's Avatar

Cruisers Forum Supporter

Join Date: Sep 2006
Location: Turks and Caicos Islands
Boat: Catalac 12M
Posts: 3,209
Re: Question about Air-X wind generator

You should still check for the three position switch, if you are re-installing this. You can get the manual online, by the way. But tje switch is to break the circuit, then short the outputs of the wind generator to act as a brake. It takes a lot to turn the rotor when you do this, but a squall will turn it even with the brake on. It makes a lot of noise. Sounds like a bad bearing. I have a little tail line on this one so I can turn it perpendicular to the wind to stop and tether it in strong winds. If you do have the three position switch, it will not be putting amps into your batteries if it is in the shorted, brake position. It's faster and quieter in the on position.
__________________
Expat life in the Devil's Triangle:
http://2gringos.blogspot.com/
Canibul is offline   Reply With Quote
Old 11-03-2014, 16:19   #10
Registered User
 
d design's Avatar

Join Date: Oct 2013
Location: Whangaroa, New Zealand
Posts: 242
My air x main bearing is stuffed. So it takes 20kts to spin it! there is blue blades for them that are way quieter.
__________________
d design is offline   Reply With Quote
Old 11-03-2014, 18:27   #11
Registered User
 
Mike OReilly's Avatar

Join Date: Sep 2011
Location: Good question
Boat: Rafiki 37
Posts: 4,038
Re: Question about Air-X wind generator

The blue blades are made by Spreco, the same company that makes the SilentWind generator (the one I currently have).

Rotorblades spb? - Price: 246.00? | Rotorblades spb? | Silentwind - Wind Generator

And yes, if the Air-X is shorted, or in brake mode, it will still turn, but won't produce any amps. In my experience it would not turn very fast when shorted, even in high wind.

Put an amp meter on the circuit. If all you have a is a volt meter you should see the voltage rise on the batteries once the Air-X is spinning in winds over 18 knots. It should be producing significant amps at that point (I forget how much).
__________________
Why go fast, when you can go slow.
BLOG: www.helplink.com/CLAFC
Mike OReilly is online now   Reply With Quote
Old 11-03-2014, 23:18   #12
Senior Cruiser
 
Jim Cate's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 11,468
Re: Question about Air-X wind generator

Quote:
Originally Posted by d design View Post
My air x main bearing is stuffed. So it takes 20kts to spin it! there is blue blades for them that are way quieter.
You can buy replacement bearings at any bearing store. I got a set in Cairns, Australia (a high cost place) for six dollars apiece. Not hard to replace, either. For us, the hardest part is getting the damn thing down!

And for the OP, you can make the blades somewhat quieter by carefully sanding the surfaces down to an 800 grit finish or so.

Cheers,

Jim
__________________
Jim and Ann s/v Insatiable II , lying Port Cygnet, Tasmania once again
Jim Cate is offline   Reply With Quote
Old 11-03-2014, 23:37   #13
Senior Cruiser
 
osirissail's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: A real life Zombie from FL
Boat: Gulfstar 53 - Osiris
Posts: 5,416
Images: 2
Re: Question about Air-X wind generator

Quote:
Originally Posted by Jim Cate View Post
. . . And for the OP, you can make the blades somewhat quieter by carefully sanding the surfaces down to an 800 grit finish or so.
Cheers,
Jim
Yes, If you have the black plastic blades, they are mass produced in a metal mold and have a lot of surface pits, pores and sometimes the halves are miss aligned.

Sanding the edges to restore the aerodynamic shape and then sanding the surfaces and painting them with a good UV resistant varnish that fills the little pits will significantly reduce the noise level. Sometimes this is quite a bit more economical than purchasing the alternate blade set.

But - seriously, as others have mentioned - look for the 3-position switch somewhere in the circuit between the output wires and the connection to the batteries or where ever the output wires go.

In the free-whirling switch position (center) the blades will spin up to maximum rpm very quickly and generate horrible noise as they automatically start to twist to limit rpm and blade failure. Also, some models have a built in limit sensor that will short the output automatically when maximum blade rpm is achieved - also making serious noise levels as the blades cycle between start and stop.
__________________
osirissail is offline   Reply With Quote
Old 12-03-2014, 01:06   #14
Registered User
 
d design's Avatar

Join Date: Oct 2013
Location: Whangaroa, New Zealand
Posts: 242
The stock black blades are CFRP.
__________________
d design is offline   Reply With Quote
Old 20-10-2014, 17:23   #15
Registered User
 
Hkalan's Avatar

Join Date: Nov 2011
Location: Hong Kong
Boat: Bertram 46.6 FBMY
Posts: 285
Re: Question about Air-X Wind Generator

Hello,

I did a google search for replacement blades for an Air X, and found a place in the USA called "Missouri Wind & Solar" that claims to make the quietest blades on the market... The blades are called "Raptor Series Blades".

Has anyone ever tried them ?

Alan


Sent from my iPhone using Cruisers Sailing Forum
__________________

__________________
Hkalan is offline   Reply With Quote
Reply

Tags
generator, wind, wind generator

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Air-X Land vs AIR-X Marine Wind Generator tomj Electrical: Batteries, Generators & Solar 42 25-06-2011 18:08
Air-X Land vs AIR-X Marine Wind Generator TheSolarStore Commercial Posts 0 24-05-2011 16:50



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:30.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.