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Search: Posts Made By: jimjel
Showing results 1 to 25 of 27
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Forum: RC Airboats
01-20-2005, 04:24 PM
Replies: 2
Views: 1,045
Posted By jimjel

Dumas Big Swamp Buggy

Am putting a BSB together and have a few questions:

1) Could someone tell me what the cg of a BSB shuld be? Dumas makes no mention of it in their building plan.

2) Is any right or left...
Forum: Gas Engines
01-16-2005, 02:37 PM
Replies: 7
Views: 2,106
Posted By jimjel

RE: Question about high octane gasoline (petrol)

Fiery,

I run r/c gas (petrol) boats. The motors I use are highly modified Zenoah 260's coupled to a tuned exhaust system. Even after modifying the motors the compression is still fairly low. ...
Forum: RC Boats General Discussion
01-12-2005, 03:40 PM
Replies: 31
Views: 3,171
Posted By jimjel

RE: WHICH FAIL SAFE IS BEST?

Mike, sounds like your failsafe is working correctly, but that is not what I am talking about. Lets take a couple hypotheticals. What does your failsafe do if by chance the receiver battery lead...
Forum: RC Boats General Discussion
01-12-2005, 12:02 PM
Replies: 31
Views: 3,171
Posted By jimjel

RE: WHICH FAIL SAFE IS BEST?

None of the failsafes mentioned above, other than the Shark failsafe, will provide protection in the event of loss of receiver battery power. They only trigger on low voltage, and loss of signal. ...
Forum: RC Airboats
01-07-2005, 06:55 AM
Replies: 3
Views: 1,255
Posted By jimjel

RE: Fuel Tank Location

I have a Perry oscillating type pump I bought 30+ years ago that has never had fuel through it. I call Perry Aeromotive and asked if the pump would still be good after all those years and he said it...
Forum: RC Airboats
01-04-2005, 11:49 AM
Replies: 4
Views: 813
Posted By jimjel

RE: water rudders

Dadaddyro, thanks for the link to the pix. Got it!. Better than detachable water rudders. Love the spring loaded retractable rudder.
Forum: RC Airboats
01-04-2005, 11:34 AM
Replies: 4
Views: 813
Posted By jimjel

RE: water rudders

I got it figured out how to make the water rudders detachable. Need to know how much blade area I need to get good slow speed turning. Would like to use the airboat as a retreive boat for my gas...
Forum: RC Airboats
01-04-2005, 09:52 AM
Replies: 4
Views: 813
Posted By jimjel

water rudders

Does anybody have any info or pictures of water rudders installed on an airboat?

Thanks,

Jim
Forum: RC Airboats
01-03-2005, 09:01 AM
Replies: 3
Views: 1,255
Posted By jimjel

Fuel Tank Location

I am in process of putting together a Dumas Big Swamp Buggy (31L x 17W). The motor and muffler I lwill be using has a combined weight of 26 oz. Am concerned that the center of balance may be too...
Forum: Glow Engines
12-27-2004, 12:04 PM
Replies: 10
Views: 999
Posted By jimjel

RE: ST G90 fuel

You will have to excuse my ignorance about glow engines. Is the pinging caused by the nitro content or something else?

I have heard many say to run castor or a castor synthetic blend in the...
Forum: Glow Engines
12-27-2004, 06:50 AM
Replies: 10
Views: 999
Posted By jimjel

ST G90 fuel

Just bought a ST G90. Is it necessary to run nitro in the fuel or will it run/idle well without any nitro content? Also, if nitro is not required what glow plug would work well with a no nitro...
Forum: Batteries & Chargers
12-22-2004, 07:50 PM
Replies: 10
Views: 1,036
Posted By jimjel

RE: AccuCycle Elite timer question

I don't think you can turn off the timer. It is a built in safety feature. You didn't mention anything about the batteries you are trying to condition. If your charger is timing out you must be...
Forum: Gas Engines
12-19-2004, 04:50 PM
Replies: 16
Views: 1,523
Posted By jimjel

RE: OIL MIX

I run 8 oz/gal (16:1) Cool Power Blue oil in my Zenoah 260 powered race boats. They are highly modified 260s, water cooled, with tuned exhausts. They are in the 5 to 5.5 hp range and turn 17k to 18...
Forum: Brushed/Brushless motors, speed controls, gear drives
12-02-2004, 06:25 PM
Replies: 2
Views: 3,009
Posted By jimjel

Speed controller for Robbe EF 76-II motor

Need some recommendations for an electronic speed controller that will work with a Robbe EF 76-II motor. I have been unable to find any information about the motor that specifies the number of turns...
Forum: Brushed/Brushless motors, speed controls, gear drives
12-02-2004, 06:24 PM
Replies: 0
Views: 193
Posted By jimjel

Speed controller for Robbe EF 76-II motor

Need some recommendations for an electronic speed controller that will work with a Robbe EF 76-II motor. I have been unable to find any information about the motor that specifies the number of turns...
Forum: Brushed/Brushless motors, speed controls, gear drives
12-02-2004, 06:19 PM
Replies: 0
Views: 1,217
Posted By jimjel

Speed controller for Robbe EF 76-II motor

Can anyone recommend a reasonably priced electronic speed control that will work with a Robbe EF 76-II electric motor. The Robbe p/n is 4013. Unable to find any info that tells you how many turns...
Forum: Speed - RC Nitro Boats
11-30-2004, 08:27 PM
Replies: 19
Views: 973
Posted By jimjel

RE: Speed?

CFRACR's hopped up hammer was radared at 23mph last Sunday. Don't know what motor is in it but it is not the stock motor.

Jim
Forum: Gas Engines
11-18-2004, 07:50 AM
Replies: 10
Views: 1,596
Posted By jimjel

RE: cleaning carbon buildups

Use Cool Power Blue synthetic 2 stroke oil and you won't have any carbon buildup in your gas motor. I run 8 oz of Cool Power per gal/ of gas in my boats. My motors are modified Zenoahs that turn...
Forum: Gas Engines
11-18-2004, 07:41 AM
Replies: 32
Views: 3,537
Posted By jimjel

RE: Remote Kill Switches for Gas Engines

To my knowledge there is only one failsafe unit made that incorporates an engine kill feature in the event of a total loss of power from the reciever pack for whatever the reason. i.e. broken wire,...
Forum: Batteries & Chargers
11-16-2004, 05:05 PM
Replies: 275
Views: 31,033
Posted By jimjel

RE: Attn: Hobbico Elite Owners

Any chance Hobbico will retrofit existing chargers when a fix is available?

Jim
Forum: Batteries & Chargers
11-16-2004, 11:47 AM
Replies: 275
Views: 31,033
Posted By jimjel

RE: Attn: Hobbico Elite Owners

Geist,

Re: the 864ma charge current. Are you sure the 864ma isn't the amount of charge the charger put into the batteries before it terminated charge?

I only use the charger to charge Rx...
Forum: Batteries & Chargers
11-11-2004, 01:19 PM
Replies: 275
Views: 31,033
Posted By jimjel

RE: Attn: Hobbico Elite Owners

Mine won't do that Geist. Once it hits the preset temperature when charging the charger shuts off and does not restart. It will however, shut off and restart if the pack overheats on the discharge...
Forum: Batteries & Chargers
11-10-2004, 08:38 AM
Replies: 275
Views: 31,033
Posted By jimjel

RE: Attn: Hobbico Elite Owners

I bought one of the temp sensors for my Elite. Very accurate. I wanted to install the temp sensor permanently on my receiver battery pack but the 10" lead was too short to be useful, unless you...
Forum: Gas Engines
10-31-2004, 07:21 AM
Replies: 21
Views: 1,413
Posted By jimjel

RE: Fuji 150:1 Oil

I run R/C gas boats. My current motors are highly modified water cooled Zenoah 260's. With a tuned pipe the motors put out 5.5-6.0 hp and turn 17k to 18k rpm. Let me assure you, my motors would...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros
10-22-2004, 09:52 AM
Replies: 18
Views: 1,167
Posted By jimjel

RE: low friction servos

Take a look at the Futaba 9101. Very free running, coreless, non-digital servo.

Jim
Showing results 1 to 25 of 27
 
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