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Search: Posts Made By: ron_van_sommeren
Forum: Batteries & Chargers 08-21-2014, 08:39 PM
Replies: 7
Views: 198
Posted By ron_van_sommeren
Charger tests, including the 206B ...

Charger tests, including the 206B
translate...www.elektromodellflug.de...
Forum: Batteries & Chargers 08-19-2014, 01:48 AM
Replies: 7
Views: 198
Posted By ron_van_sommeren
For playing a bit with the currentlimits for...

For playing a bit with the currentlimits for chargers, for given number of cells, per type/make
www.scriptasylum.com (http://www.scriptasylum.com/)
-> RC calculations...
Forum: Power Systems 08-11-2014, 12:37 AM
Replies: 1
Views: 94
Posted By ron_van_sommeren
Try the Electronic Builders Workshop...

Try the Electronic Builders Workshop (http://www.wattflyer.com/forums/forumdisplay.php?f=32) subforum.
Forum: Power Systems 08-06-2014, 11:11 AM
Replies: 3
Views: 144
Posted By ron_van_sommeren
Keep in mind Brian that ... The Kv constant...

Keep in mind Brian that ...

The Kv constant is not a rating, not a figure of merit, it's just a characteristic. More windings will give lower Kv, less windings will give higher Kv, that's all...
Forum: Power Systems 08-05-2014, 11:07 PM
Replies: 9
Views: 200
Posted By ron_van_sommeren
What about helicopters then? Both motor and rotor...

What about helicopters then? Both motor and rotor shaft are vertical instead of horizontal. Not to mention belt reduction versus gear reduction and single stage versus double stage reduction. And...
Forum: Power Systems 08-05-2014, 03:36 PM
Replies: 9
Views: 200
Posted By ron_van_sommeren
There are 3 2 = 6 ways to hook up the...

There are 3 2 = 6 ways to hook up the motorwires, 3 of them will make the motor run CW, 3 of them will run motor CCW.

I kindly suggest you NEVER EVER visit Las Vegas, it would wreak havoc with...
Forum: Foamies 07-31-2014, 12:39 PM
Replies: 8
Views: 216
Posted By ron_van_sommeren
If motor runs in wrong direction, switch any two...

If motor runs in wrong direction, switch any two of the three motorwires to reverse rotation.
Forum: Power Systems 07-31-2014, 12:31 PM
Replies: 12
Views: 379
Posted By ron_van_sommeren
Typo Denny? Should be HP = P * D^4 * RPM^3 /...

Typo Denny? Should be
HP = P * D^4 * RPM^3 / 1.4E17
using superscript
HP = P * D^4 * RPM<sup>3</sup> / 1.4E17
Forum: Power Systems 07-30-2014, 12:02 PM
Replies: 12
Views: 379
Posted By ron_van_sommeren
Keep in mind that ... A motors Kv constant...

Keep in mind that ...

A motors Kv constant says nothing about max.power, max.current, efficiency, rpm, quality etc. (http://www.rcgroups.com/forums/showthread.php?t=2131492)
The Kv constant...
Forum: Power Systems 07-26-2014, 01:25 PM
Replies: 12
Views: 379
Posted By ron_van_sommeren
This is the Brushless Motor Construction...

This is the Brushless Motor Construction (http://www.wattflyer.com/forums/forumdisplay.php?f=88) subforum. You'll get more viewers/answers in the Power Systems...
Forum: Off Topic Chit Chat 07-23-2014, 01:49 PM
Replies: 12
Views: 350
Posted By ron_van_sommeren
Lovely engines. What's the colour coating...

Lovely engines. What's the colour coating material in the cylinder heads Chellie?

BTW I have read about brake fluid as cleaner.
Forum: Beginners 07-19-2014, 06:31 PM
Replies: 10
Views: 231
Posted By ron_van_sommeren
Lucien Miller (Scorpion USA...

Lucien Miller (Scorpion USA (http://http://www.innov8tivedesigns.com)) about derating (http://https://en.wikipedia.org/wiki/Derating) for motors, controllers, batteries and electronics, starting at...
Forum: Off Topic Chit Chat 07-16-2014, 12:31 PM
Replies: 55
Views: 1,912
Posted By ron_van_sommeren
RCG made a mistake, they corrected it, all 25 of...

RCG made a mistake, they corrected it, all 25 of them ;), with the help of people in this WFF thread.
Everybody happy :)

I cannot reply in Nigel's RCG thread, otherwise I would have mentioned it...
Forum: Off Topic Chit Chat 07-15-2014, 11:04 PM
Replies: 55
Views: 1,912
Posted By ron_van_sommeren
25 messages from RCG :) Boldface by me. ...

25 messages from RCG :)
Boldface by me.

Again, thank you guys&girls for your support and pats on the back.
Forum: Off Topic Chit Chat 07-15-2014, 01:00 PM
Replies: 55
Views: 1,912
Posted By ron_van_sommeren
Thank you guys&girls, and notably Nigel :) ...

Thank you guys&girls, and notably Nigel :)

Posting identical messages in response to similar (opening) posts is not cross-posting. I had already reported dailydigitaldeals spam several times,...
Forum: Off Topic Chit Chat 07-14-2014, 12:40 PM
Replies: 55
Views: 1,912
Posted By ron_van_sommeren
got permanent ban on RCG

I can't even appeal anymore.
25 'reasons' (http://www.rcgroups.com/forums/search.php?do=finduser&u=3018) for my permanent ban:
www.rcgroups.com/forums/search.php?do=finduser&u=3018...
Forum: General Electric Discussions 06-30-2014, 10:31 PM
Replies: 11
Views: 350
Posted By ron_van_sommeren
www.aircraft-world.com a.k.a. David Radford

www.aircraft-world.com a.k.a. David Radford
Forum: General Electric Discussions 06-21-2014, 05:40 PM
Replies: 7
Views: 246
Posted By ron_van_sommeren
Charge/discharge rates as a function of #cells ...

Charge/discharge rates as a function of #cells
www.scriptasylum.com (http://www.scriptasylum.com)
-> RC calculationshttp://www.scriptasylum.com/images/rccalculations.jpg...
Forum: Power Systems 06-19-2014, 12:43 PM
Replies: 17
Views: 447
Posted By ron_van_sommeren
And even KISSER i.e. if you want to use a...

And even KISSER i.e. if you want to use a separate battery:
4NiMH or 2LiFe
Forum: General Electric Discussions 06-17-2014, 11:18 PM
Replies: 8
Views: 268
Posted By ron_van_sommeren
Not the only thing(s) I have lost since my...

Not the only thing(s) I have lost since my previous picture was taken :D On the bright side, I gained a bit of forehead
Forum: General Electric Discussions 06-17-2014, 10:52 PM
Replies: 8
Views: 268
Posted By ron_van_sommeren
Don't play with throttle when this occurs, you...

Don't play with throttle when this occurs, you may burn motor and/or controller.
Forum: Brushless Motor Construction 06-17-2014, 08:15 PM
Replies: 72
Views: 6,716
Posted By ron_van_sommeren
Chamfer (bevel? what's the difference?) the edges...

Chamfer (bevel? what's the difference?) the edges with a file a bit before winding.
Forum: Batteries & Chargers 06-15-2014, 05:37 PM
Replies: 9
Views: 403
Posted By ron_van_sommeren
I know you know :) but I'm always a bit...

I know you know :) but I'm always a bit (over)cautious with regards to beginners. Especially when (dis)charging is the topic.
Forum: Batteries & Chargers 06-15-2014, 02:11 PM
Replies: 9
Views: 403
Posted By ron_van_sommeren
You were to fast there, two typos: mAh (unit of...

You were to fast there, two typos: mAh (unit of capacity) should be mA (unit of current).
Seems a bit over the top for a beginner. What batteries do you want to charge, voltage and capacity?
Forum: Power Systems 06-13-2014, 07:38 PM
Replies: 3
Views: 219
Posted By ron_van_sommeren
Power Systems - RCG...

Power Systems - RCG (http://www.rcgroups.com/power-systems-13/)
-> Sticky: e-flight calculators (compilation) (http://www.rcgroups.com/forums/showthread.php?t=606703)



But ... when just...
Forum: Brushless Motor Construction 06-13-2014, 05:21 PM
Replies: 36
Views: 2,569
Posted By ron_van_sommeren
Kv_delta = 1.75 Kv_star Kv_star = Kv_delta /...

Kv_delta = 1.75 Kv_star
Kv_star = Kv_delta / 1.75

Double voltage and motor/battery current wants to quadruple (22). An n% increase in voltage will give a 2n% increase in current.
Double Kv...
Forum: Power Systems 06-13-2014, 05:13 PM
Replies: 7
Views: 258
Posted By ron_van_sommeren
To be honest Denny, I had already reported that...

To be honest Denny, I had already reported that post before asking you about it here. Within 10minutes it was moved to the RCG bitbucket (http://www.rcgroups.com/bit-bucket-252/).
It's not the first...
Forum: Power Systems 06-13-2014, 04:25 PM
Replies: 7
Views: 258
Posted By ron_van_sommeren
I take it this is not you Denny? First post, and...

I take it this is not you Denny? First post, and you already had your anser from Nigel
www.rcgroups.com/forums/showthread.php?t=2185474

Prettig weekend ;) Ron
Forum: Batteries & Chargers 06-13-2014, 03:07 PM
Replies: 26
Views: 1,003
Posted By ron_van_sommeren
Comparing charger limits, max.current goes down...

Comparing charger limits, max.current goes down as #cells goes up!, and power supplies
www.scriptasylum.com (http://www.scriptasylum.com/)
-> RC calculations...
Forum: Power Systems 06-13-2014, 02:46 PM
Replies: 7
Views: 258
Posted By ron_van_sommeren
Kontronik lists them as 5kW continuous power...

Kontronik lists them as 5kW continuous power Denny
Kontronik - Pyro 800 series...
Showing results 1 to 30 of 500

 
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