Hovercraft

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I'm converting a large toy hovercraft into brushless.

going to put three motors on it, one for the lift and two for driving it. Both motors are placed on the rear and need to work fwd and reverse separately, spinning a prop.

I need two lightweight ESCs that won't require water cooling, for driving on dry surface as well.

The car's ESC seem too heavy, any other ideas?

Edited by Shaprap - 05/Mar/2010 at 2:16am

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Shaprap Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (IL) USERID: 260704 Newbie Joined: 02/Dec/2009 Online Status: Offline Posts: 12	Quote Reply Topic: Hovercraft Posted: 05/Mar/2010 at 2:15am
	I'm converting a large toy hovercraft into brushless. going to put three motors on it, one for the lift and two for driving it. Both motors are placed on the rear and need to work fwd and reverse separately, spinning a prop. I need two lightweight ESCs that won't require water cooling, for driving on dry surface as well. The car's ESC seem too heavy, any other ideas? Edited by Shaprap - 05/Mar/2010 at 2:16am

Blind Vision Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (DK) USERID: 52464 Forum Admin ADMIN Joined: 21/Oct/2009 Location: DK/Denmark, AMC Online Status: Offline Posts: 3804	Quote Reply Posted: 24/Mar/2010 at 7:30am
	what, ? -i would geuss the only ESC that has 2 directions of rotation would be those for cars. BUT if the motors are separated as on the picture (one at each corner), you should be able to control it any way useing (one directional) normal ESC's. -THAT is, if you intend to use a Normal TX (not the toy one). How does the toy look, -post a picture. and let us in on the way you want to control it, and with what ?
	Doing some guerilla gardening... take a peek; http://www.facebook.com/groups/416558261701047/ lokal bustop infront of my flat

BrazFly Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Platinum (BR) USERID: 86686 Bargain Addict! Joined: 09/Jul/2009 Location: BRAZIL Online Status: Offline Posts: 77	Quote Reply Posted: 24/Mar/2010 at 7:37am
	As you nees FW and RW, think that only those for cars...
	Life is simple, eat, sleep, and FLY!

BrazFly Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Platinum (BR) USERID: 86686 Bargain Addict! Joined: 09/Jul/2009 Location: BRAZIL Online Status: Offline Posts: 77	Quote Reply Posted: 24/Mar/2010 at 7:37am
	Oh, Please post some pictures from this machine!!
	Life is simple, eat, sleep, and FLY!

maxx78 Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (DE) USERID: 163190 HobbyKing Constituent Joined: 03/Apr/2009 Location: Hamburg (DE) Online Status: Offline Posts: 235	Quote Reply Posted: 24/Mar/2010 at 5:58pm
	Take a look at this ESC's: http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=120488804488&ssPageName=STRK:MEWAX:IT i use a lot of them for some boats. You can programm a lot of parameters. Best regards Max Pictures would be nice...

Shaprap Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (IL) USERID: 260704 Newbie Joined: 02/Dec/2009 Online Status: Offline Posts: 12	Quote Reply Posted: 31/Mar/2010 at 9:28pm
	Dont have any pics but here's a video of the hovercraft, all stock: The text is in hebrew: "HoverJet hovercraft by Pilotage" "About 5 minutes of hovering with the stock battery: 750mAh NiCd 9.6V" as you can see - it's big and slow, and the battery is a joke. I tries packing 8x 2900mAh AA and it hovered for a longer time, but was slower cuz the pack was heavier.

Blind Vision Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (DK) USERID: 52464 Forum Admin ADMIN Joined: 21/Oct/2009 Location: DK/Denmark, AMC Online Status: Offline Posts: 3804	Quote Reply Posted: 02/Apr/2010 at 9:06pm
	OK, now i see why you want to UPGRADE or modify this hovercraft. my modification would be RUDDERs on the Thrusters, and Brushsless moters for everything. as for the Reverse funktion, -ITS not needed when you got RUDDERS. Rudders can be made to operate from one servo only, -linked together by a carbon rod (or something like that) Rember the lifting units (ESC), should be operating at almost full throttle (or else you just burn power in the ESC (going to waste) - get the right motor for the job (KV). -as for the Motors for thrust, only the sky is the limit -could be very fun at about 50+ kmh.
	Doing some guerilla gardening... take a peek; http://www.facebook.com/groups/416558261701047/ lokal bustop infront of my flat

Beladog Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (US) USERID: 301604 Forum Admin BELAMOD Joined: 01/Feb/2010 Location: San Diego USA Online Status: Offline Posts: 2427	Quote Reply Posted: 04/May/2010 at 3:39pm
	I am in the process of stocking up for a very large scale scratch built hovercraft. It will use two 30mm 1100kv bl out-runners for lift(APC10x6) and one 40mm out-runner for propulsion(APC11x10). It will use Thrust vector and rudder for steer control. This model is estimated to weigh close to 15lbs (6.8kg)! Testing shows it will have an 8" ride height at 1/2 throttle and will clear 12" briefly at full throttle. Blind vision is correct! For steer control rudders like the full size ones work best. You will be able to turn much faster, and the machine will be easier to control and will track much better this way.

Packocrayons Members Profile Send Private Message Find Members Posts Add to Buddy List Gold (CA) USERID: 691154 Newbie Joined: 01/Oct/2012 Online Status: Offline Posts: 1	Quote Reply Posted: 01/Oct/2012 at 3:36am
	You can't ride 8" off the ground, it will be far too unstable. Mine is a little touchy at about 1", although it has a wall skirt (tire tube) instead of a filled skirt.