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Search: Posts Made By: Ross Kean
Showing results 1 to 25 of 500
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01-03-2007, 06:46 AM
Replies: 7
Views: 946
Posted By Ross Kean

RE: Help me convert this power supply

It all depends upon what you are planning to charge. If you are charging relatively small 2 and 3 cell (LiPo) packs, you might be OK - don't try to charge a 5S 3000 mAhr pack. Keep in mind that...
01-02-2007, 08:39 PM
Replies: 7
Views: 946
Posted By Ross Kean

RE: Help me convert this power supply

A 10 ohm resistor will load the 5V line to half its maximum of 1 amp. The PS only is capable of 100 watts on the 12 (13)V side. THis might do it but you might need a higher resistor (20 ohm?) on...
12-22-2006, 07:16 AM
Replies: 13
Views: 1,507
Posted By Ross Kean

RE: MRC Super Brain 989

I will be interested to see whether this charger lives up to its hype. MRC has had some "issues" in the past. Initially, I thought this might be a pretty good charger for the money but was quite...
12-16-2006, 10:33 AM
Replies: 5
Views: 690
Posted By Ross Kean

RE: Crack in starter battery casing...

You definately cooked it!! A typical 7 aH field battery should be charged at c/10 - 700 milliamps at most. Some will charge them at up to 2 amps but it doesn't do the battery any favors. Keep to...
11-10-2006, 12:11 PM
Replies: 19
Views: 4,665
Posted By Ross Kean

RE: MRC SuperBrain "989" Charger

The maximum current at various voltages (total watts) is a critical specification for anyone buying a charger; especially a fairly "high-end" instrument like this one. I understand that the maximum...
11-10-2006, 09:56 AM
Replies: 19
Views: 4,665
Posted By Ross Kean

RE: MRC SuperBrain "989" Charger

I strongly agree that an independent review would be very helpful. I know that there were safety related "issues" with a previous MRC charger and I suspect that there will be some reluctance from...
Forum: Beginners
10-18-2006, 05:51 PM
Replies: 19
Views: 1,485
Posted By Ross Kean

RE: Cutting reciever wire bad idea?

Very bad idea. You could significantly reduce range.!!

Ross
09-13-2006, 12:02 PM
Replies: 11
Views: 734
Posted By Ross Kean

RE: What's The Matter With The Forums Site

I am still getting some links, pictures and adverts that come up with the "red X".
Forum: Glow Engines
08-31-2006, 06:24 AM
Replies: 12
Views: 1,122
Posted By Ross Kean

RE: think a tower 75 at 90$ is great? what about a mag 91 at 63$ then???

I just checked the website and they are listing the Sanye S91A at $82.30. Has the price jumped by $20? (Still a pretty good price but with shipping and probably no domestic warranty, it is hardly...
07-21-2006, 06:04 AM
Replies: 19
Views: 1,288
Posted By Ross Kean

RE: Marez on Parallel Operation - One more time.

Everyone is entitled to an opinion. Unfortunately, the opinion expressed pays little attention to all of the possibilities. First of all, it would seem to me that the most likely mode of failure is...
07-17-2006, 05:35 AM
Replies: 2
Views: 409
Posted By Ross Kean

RE: Capacity of DuBro Sub C NyStarter?

If this is the one:

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXD702&P=0

it is 1300 mAh

Ross
07-16-2006, 12:31 PM
Replies: 30
Views: 2,522
Posted By Ross Kean

RE: Peak charging NiMH packs: do you or don't you? General consensus...

:D Heavy water is D2O where "D" is heavy hydrogen or deterium. (one proton and one neutron for deterium and just a proton for hydrogen).

I also peak charge both NiCd and NiMH packs - mostly...
07-15-2006, 08:10 PM
Replies: 30
Views: 2,522
Posted By Ross Kean

RE: Peak charging NiMH packs: do you or don't you? General consensus...

Thats OK. I was just trying to inject a little humor into an argument that people are getting far too excited about!

"EDIT AGAIN: It can also be called Hydrogen Oxide."

My EDIT: Since we...
07-15-2006, 08:02 PM
Replies: 30
Views: 2,522
Posted By Ross Kean

RE: Peak charging NiMH packs: do you or don't you? General consensus...

How about dihydrogen monoxide (H2O)??

Sorry, I just couldn't resist (or should I say impede?)

Ross :D
07-11-2006, 10:59 AM
Replies: 8
Views: 1,624
Posted By Ross Kean

RE: Sig Champion Fuel. Did I fry my engine.

The black may be simply due to a loose muffler bolt. In many two strokes (especially if you are not using a muffler gasket) the oil will come out black due to minute particles of aluminum caused by...
Forum: Beginners
06-28-2006, 06:53 AM
Replies: 8
Views: 875
Posted By Ross Kean

RE: Fuel starvation in a dive?

If you are accelerating in a dive, the fuel will remain in the back of the tank. If the fuel level is at least a third full, you will be OK on a modest (non-accelerating) downline. Otherwise, you...
06-22-2006, 10:32 AM
Replies: 15
Views: 1,179
Posted By Ross Kean

RE: Over rated batteries?

You are discharging at too high a rate (C/2) to compare to the manufacturer's ratings. To check the ultimate capacity, you should probably discharge at a c/5 or c/10 rate to around 0.9V. If you are...
06-18-2006, 12:53 PM
Forum: Beginners
06-14-2006, 06:42 PM
Replies: 16
Views: 3,132
Posted By Ross Kean

RE: Does nitro fuel evaporate ?

Some fuel constituents are volatile and as other have said, open fuel will suck up moisture from humid air. The amount depends on the amount of air circulation (a few litres of humid air doesn't...
05-31-2006, 10:22 PM
Replies: 5
Views: 1,577
Posted By Ross Kean

RE: YS-45 FS Issues

Dave

Thanks for the fast response. I evidently made some incorrect assumptions with the limited (incorrect) information I had when I tried to set the engine. I actually managed to get an...
05-31-2006, 06:43 PM
Replies: 5
Views: 1,577
Posted By Ross Kean

YS-45 FS Issues

The RCU search function doesn't work very well with numbers!!! I looked back over the last 20 or so pages and didn't find anything relavent so forgive me if this has been dealt with before. I...
05-31-2006, 11:41 AM
Replies: 11
Views: 1,330
Posted By Ross Kean

RE: decals

If you can exactly match the red background, you could print red background on white decal paper, cut out the whole works in one piece and paste it on. I suspect, however, you would not get a...
05-21-2006, 02:50 PM
Replies: 4
Views: 572
Posted By Ross Kean

RE: CBA II

All it needs is a capability for a higher load! It would be nice to have something capable of testing larger packs (without paying big bucks). Unfortunately, even if they came up with a version...
Forum: Glow Engines
05-09-2006, 11:53 AM
Replies: 14
Views: 7,351
Posted By Ross Kean

RE: mousse can muffler?

The mousse can on the SPAD website http://www.spadtothebone.com/SPAD/Mufflers/ uses the front half of the muffler as the header. I have tried it and it works well. Nothing extra to buy.
05-02-2006, 06:28 AM
Replies: 2
Views: 570
Posted By Ross Kean

RE: NiMh 1.2 volts ?

1) Your batteries are likely toast although you might try using a slow charge to bring them back.
2) NiCd batteries have the same nominal 1.2 V as NiMH so NiCd won't help very much.

I suggest...
Showing results 1 to 25 of 500
 


 
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