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Search: Posts Made By: ron_van_sommeren
Forum: General Electric Discussions 07-17-2016, 08:19 PM
Replies: 6
Views: 222
Posted By ron_van_sommeren
close out sale: Hyperion watt-meter II (optical...

close out sale: Hyperion watt-meter II (optical tach, servo tester, remote logging) (http://www.rcgroups.com/forums/showthread.php?t=2649140)
Forum: General Electric Discussions 06-28-2016, 12:17 AM
Replies: 11
Views: 465
Posted By ron_van_sommeren
It is a good practice to have some headroom built...

It is a good practice to have some headroom built in.
Lucien Miller (Scorpion USA (http://www.innov8tivedesigns.com)) about derating motors, controllers, batteries, electronics in general:

...
Forum: FMA Direct 06-20-2016, 12:39 AM
Replies: 8
Views: 414
Posted By ron_van_sommeren
About charge, current, voltage, watt, resistance,...

About charge, current, voltage, watt, resistance, power, C, energy, capacity
www.rc-cars-planes.com/docs/wu100v2_user_manual.pdf (http://www.rc-cars-planes.com/docs/wu100v2_user_manual.pdf)
Chapter...
Forum: General Electric Discussions 06-20-2016, 12:36 AM
Replies: 52
Views: 1,278
Posted By ron_van_sommeren
Hey guys, inverted low pass ...

Hey guys, inverted low pass ...
Forum: Power Systems 06-15-2016, 05:02 PM
Replies: 63
Views: 1,180
Posted By ron_van_sommeren
Too big a step indeed.

Too big a step indeed.
Forum: General Electric Discussions 06-15-2016, 04:56 PM
Replies: 6
Views: 243
Posted By ron_van_sommeren
Some explained here ... E-flight 101 by...

Some explained here ...


E-flight 101 by RCG member Ken Myers (http://www.rcgroups.com/forums/member.php?u=5071), will at least save you a ruined LiPo (or worse!), a burnt motor and a fried ESC:...
Forum: General Electric Discussions 06-15-2016, 04:49 PM
Replies: 7
Views: 244
Posted By ron_van_sommeren
Charger calculator, selection tool. Select...

Charger calculator, selection tool.

Select (similar) charger and tool will calculate max.charge current it can handle for given number of cells (a.k.a. voltage)
www.scriptasylum.com...
Forum: Scale E-Powered Aircraft 06-13-2016, 11:23 PM
Replies: 11
Views: 520
Posted By ron_van_sommeren
This servo-tester comes with a watt-meter, a...

This servo-tester comes with a watt-meter, a tacho, optional logging and several other e-goodies ;)
www.rcgroups.com/forums/showthread.php?t=2649140...
Forum: Power Systems 06-12-2016, 05:59 PM
Replies: 63
Views: 1,180
Posted By ron_van_sommeren
Could www.ecalc.ch (http://www.ecalc.ch) be of...

Could www.ecalc.ch (http://www.ecalc.ch) be of help here? (caveat, as with all software: garbage in, garbage out)
(https://en.wikipedia.org/wiki/Garbage_in,_garbage_out)
Dedicated Q&A thread, by...
Forum: Beginners 06-07-2016, 05:24 PM
Replies: 11
Views: 435
Posted By ron_van_sommeren
If the controller can handle the voltage of the...

If the controller can handle the voltage of the battery pack, and the current the motor draws (add 20-30% headroom) you're in the clear. 'Giving poor performance' is not an ESC failure mode. It...
Forum: General Electric Discussions 06-07-2016, 12:05 PM
Replies: 27
Views: 915
Posted By ron_van_sommeren
Motorcurrent is proportional to voltage squared...

Motorcurrent is proportional to voltage squared (and proportional to Kv cubed).

In this case current wants to increase by factor (4/3) = 1.8 (not by factor 4/3 = 1.3 is you would expect). That's...
Forum: Beginners 06-05-2016, 04:03 PM
Replies: 11
Views: 415
Posted By ron_van_sommeren
Some reading for rainy/windy days. Will save you,...

Some reading for rainy/windy days. Will save you, and us http://static.rcgroups.com/forums/images/smilies/biggrin.gif, a lot of questions.
Will also prevent you from burning up several controllers...
Forum: Power Systems 05-26-2016, 06:48 PM
Replies: 15
Views: 386
Posted By ron_van_sommeren
The coils/wiring on the teeth/hammerheads.

The coils/wiring on the teeth/hammerheads.
Forum: Power Systems 05-26-2016, 06:45 PM
Replies: 15
Views: 386
Posted By ron_van_sommeren
Just ignore burst ratings, they are marketing...

Just ignore burst ratings, they are marketing blurp.

A (almost) stalled motor will draw a very high current.
Blipping to full throttle will also draw a high current.

It is a good practice to...
Forum: General Electric Discussions 05-20-2016, 04:47 PM
Replies: 41
Views: 796
Posted By ron_van_sommeren
If the current at wide-open-throttle is too high...

If the current at wide-open-throttle is too high then reducing throttle on an overpropped motor to keep current below ESC max.current is not a good idea. Itis even harder on ESC than to keep...
Forum: General Electric Discussions 05-20-2016, 01:55 AM
Replies: 41
Views: 796
Posted By ron_van_sommeren
Some reading and handy e-tools for rainy/windy...

Some reading and handy e-tools for rainy/windy days. Will save you, and us :D, a lot of questions.
Will also prevent you from burning up several controllers and/or motors and/or battery:
E-flight...
Forum: General Electric Discussions 05-09-2016, 10:17 PM
Replies: 11
Views: 525
Posted By ron_van_sommeren
See Manuel's post Unknown motor - RCG...

See Manuel's post
Unknown motor - RCG (http://www.rcgroups.com/forums/showthread.php?p=34727712#post34727712)
Forum: General Electric Discussions 05-09-2016, 01:21 AM
Replies: 11
Views: 525
Posted By ron_van_sommeren
You're welcome :) Tip: you can remove/trim the...

You're welcome :)
Tip: you can remove/trim the picture from your quote, to keep thread lean and mean.

edit: nevermind, I just removed the picture and attached it again, from/to my post.
Forum: General Electric Discussions 05-08-2016, 08:10 PM
Replies: 11
Views: 525
Posted By ron_van_sommeren
The sticker on the rotor makes them look very...

The sticker on the rotor makes them look very cheap.

Notice the fine-balance drill spots.
Forum: General Electric Discussions 05-08-2016, 05:25 PM
Replies: 0
Views: 240
Posted By ron_van_sommeren
close out sale: Hyperion E-meter II watt meter (tacho, servotester, remote logging)

The Hyperion E-meter II had very good threads/reviews.
With built in optical tacho and servotester. Remote logging unit available

Closing out now, interesting offers.
See
watt-meter: Hyperion...
Forum: General Electric Discussions 05-08-2016, 05:19 PM
Replies: 11
Views: 525
Posted By ron_van_sommeren
It's a Plettenberg Orbit series outrunner, three...

It's a Plettenberg Orbit series outrunner, three bearings instead of the usual two. High quality stuff indeed, for at least 35years now
www.plettenberg-motoren.com

Vriendelijke groeten ;) Ron
...
Forum: Beginners 05-08-2016, 05:14 PM
Replies: 13
Views: 544
Posted By ron_van_sommeren
+1 Watt-meter will pay for itself, several times...

+1 Watt-meter will pay for itself, several times over.
Forum: Power Systems 05-08-2016, 05:10 PM
Replies: 15
Views: 497
Posted By ron_van_sommeren
Some reading and handy e-tools for rainy/windy...

Some reading and handy e-tools for rainy/windy days. Will save you, and us :D, a lot of questions.
Will also prevent you from burning up several controllers and/or motors and/or battery:
E-flight...
Forum: Power Systems 05-08-2016, 05:03 PM
Replies: 19
Views: 583
Posted By ron_van_sommeren
What battery voltage was recommended? To...

What battery voltage was recommended?

To calculate is good, to check is beter :D
The Hyperion E-meter II had very good threads/reviews.
Closing out now, interesting offers.
watt-meter: Hyperion...
Forum: General Electric Discussions 05-05-2016, 10:39 PM
Replies: 7
Views: 481
Posted By ron_van_sommeren
Quality of answers depends on quality of...

Quality of answers depends on quality of questions.
Forum: Scale E-Powered Aircraft 05-03-2016, 07:11 PM
Replies: 6
Views: 630
Posted By ron_van_sommeren
And www.benedini.de (English & German)

And www.benedini.de (English & German)
Forum: Batteries & Chargers 05-01-2016, 06:44 PM
Replies: 28
Views: 940
Posted By ron_van_sommeren
12 charger tests (and ESC, power supply, motor,...

12 charger tests (and ESC, power supply, motor, battery, bec tests)
translate...www.elektromodellflug.de...
Forum: Power Systems 04-24-2016, 07:11 PM
Replies: 14
Views: 571
Posted By ron_van_sommeren
See also Motor for 13.66lbs (6.2kg) thrust in...

See also
Motor for 13.66lbs (6.2kg) thrust in 1000watts? - RCG (http://www.rcgroups.com/forums/showthread.php?t=2650578)
Forum: Beginners 04-10-2016, 03:39 PM
Replies: 46
Views: 1,130
Posted By ron_van_sommeren
Have a look at the Hyperion motor offers in the...

Have a look at the Hyperion motor offers in the www.aircraft-world.com (http://www.aircraft-world.com/) Clearance Sale section Denny.

David Radford, a Brit or American in Japan.

Motors tested...
Forum: Beginners 04-09-2016, 10:55 PM
Replies: 46
Views: 1,130
Posted By ron_van_sommeren
It is a good practice to have some headroom built...

It is a good practice to have some headroom built in.
Lucien Miller (Scorpion USA (http://www.innov8tivedesigns.com)) about derating motors, controllers, batteries, electronics in general:

...
Showing results 1 to 30 of 500

 
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