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Search: Posts Made By: ron_van_sommeren
Forum: Batteries & Chargers 03-10-2013, 04:36 PM
Replies: 16
Views: 2,330
Posted By ron_van_sommeren
More video reviews by Bruce ...

More video reviews by Bruce
www.youtube.com/user/RCModelReviews/videos?view=0 (https://www.youtube.com/user/RCModelReviews/videos?view=0)
his site
www.rcmodelreviews.com...
Forum: Brushless Motor Construction 03-03-2013, 04:19 PM
Replies: 2
Views: 492
Posted By ron_van_sommeren
Count the number of magnets. Not the number of...

Count the number of magnets. Not the number of teeth.
Forum: Beginners 02-13-2013, 01:36 PM
Replies: 10
???
Views: 452
Posted By ron_van_sommeren
???

???
Forum: General Electric Discussions 02-10-2013, 10:46 AM
Replies: 21
Views: 1,226
Posted By ron_van_sommeren
Most chargers can do max x amps and max y volts,...

Most chargers can do max x amps and max y volts, but not both maxes simultaneously. Power (in watt) is the limiting factor then. Say charger X can do a maximum of 20volt, a maximum of 10ampère and a...
Forum: Beginners 02-07-2013, 04:36 PM
Replies: 10
Views: 709
Posted By ron_van_sommeren
Very handy/instructive tools and calculators,...

Very handy/instructive tools and calculators, wiring diagrams, demos:
The Script Asylum (http://www.scriptasylum.com)
-> RC calculations...
Forum: Off Topic Chit Chat 02-05-2013, 08:57 PM
Replies: 13
Views: 1,148
Posted By ron_van_sommeren
787 battery blew up in 2006 lab test, burned down...

787 battery blew up in 2006 lab test, burned down building | Business & Technology | The Seattle Times (http://seattletimes.com/html/businesstechnology/2020199686_787batterysafetyxml.html)
Battery...
Forum: Beginners 02-04-2013, 10:14 PM
Replies: 11
Views: 481
Posted By ron_van_sommeren
www.scriptasylum.com - BEC calculator...

www.scriptasylum.com - BEC calculator (http://www.scriptasylum.com/rc_speed/bec.html)
Why is it the more batteries I use, the less servos the BEC can handle?...
Forum: Beginners 12-31-2012, 05:53 PM
Replies: 24
Views: 1,308
Posted By ron_van_sommeren
Find experienced help and/or join a club, buy the...

Find experienced help and/or join a club, buy the plane and RC gear they use for training, don't crash :)
Forum: Beginners 12-30-2012, 02:00 PM
Replies: 24
Views: 1,308
Posted By ron_van_sommeren
E-flight 101 by RCG member Ken Myers, will at...

E-flight 101 by RCG member Ken Myers, will at least save you a ruined LiPo (or worse!), a burnt motor and a fried ESC:
The Ampeer (http://www.theampeer.org/framesefo.html)
-> Electric Power Basics...
Forum: General Electric Discussions 12-23-2012, 11:45 AM
Replies: 14
Views: 817
Posted By ron_van_sommeren
Obsolete link. New link: ...

Obsolete link. New link:
en.wikipedia.org/wiki/Lithium-air (https://en.wikipedia.org/wiki/Lithium-air)

Yes, due to the wear and tear on the electrons.
Forum: General Electric Discussions 12-13-2012, 08:25 PM
Replies: 14
Views: 817
Posted By ron_van_sommeren
In the air :D ...

In the air :D
en.wikipedia.org/wiki/Lithium-air_electrochemical_cell (http://en.wikipedia.org/wiki/Lithium-air_electrochemical_cell)

edit:
The above link is obsolete now. New link:...
Forum: General Electric Discussions 12-09-2012, 09:15 PM
Replies: 7
Views: 55,809
Posted By ron_van_sommeren
As with all software, garbage in, garbage out. ...

As with all software, garbage in, garbage out.


www.drivecalc.de (http://www.drivecalc.de) (English & German, Windows/Mac/Linux)
Announcements, help, discussion:...
Forum: Beginners 12-09-2012, 12:53 PM
Replies: 8
Views: 708
Posted By ron_van_sommeren
Very handy/instructive tools and calculators,...

Very handy/instructive tools and calculators, wiring diagrams, demos:
The Script Asylum (http://www.scriptasylum.com)
-> RC calculations...
Forum: Power Systems 12-07-2012, 08:20 PM
Replies: 12
Views: 1,188
Posted By ron_van_sommeren
My usual hit-and-run post ... :D E-flight...

My usual hit-and-run post ... :D

E-flight 101 by RCG member Ken Myers, will at least save you a ruined LiPo (or worse!), a burnt motor and a fried ESC:
The Ampeer...
Forum: Brushless Motor Construction 11-05-2012, 08:01 PM
Replies: 4
Views: 1,075
Posted By ron_van_sommeren
Plenty of stepper stators have been used in diy...

Plenty of stepper stators have been used in diy motors. But the rest of the motor may be to heavy.
Number of statorteeth must be a multiple of three, otherwise 'our' RC controllers cannot drive the...
Forum: Electric Ducted Fan Jets 10-29-2012, 11:18 AM
Replies: 128
Views: 47,697
Posted By ron_van_sommeren
I don't know Bill, sorry. Usually Ton reports his...

I don't know Bill, sorry. Usually Ton reports his www.rbckits.com prototype building himself, on www.modelbouwforum.nl.
Like this one
Mijn winterproject FIAT G50 WW2 Warbird...
Forum: Batteries & Chargers 10-29-2012, 12:43 AM
Replies: 7
Views: 861
Posted By ron_van_sommeren
The Script Asylum (http://www.scriptasylum.com) ...

The Script Asylum (http://www.scriptasylum.com)
-> RC calculations http://www.modelbouwforum.nl/forums/picture.php?albumid=6075&pictureid=116519
-> electrical
-> Lithium battery chargers
en
->...
Forum: Brushless Motor Construction 10-28-2012, 04:44 PM
Replies: 26
Views: 4,446
Posted By ron_van_sommeren
Stronger magnets will give you lower Kv, but may...

Stronger magnets will give you lower Kv, but may cause magnetic saturation and they have lower Curie temperature (https://en.wikipedia.org/wiki/Curie_temperature). If you have N35 magnets lying...
Forum: Brushless Motor Construction 10-15-2012, 09:16 PM
Replies: 26
Views: 4,446
Posted By ron_van_sommeren
I compiled a list of RC flight fora worldwide...

I compiled a list of RC flight fora worldwide (http://www.modelbouwforum.nl/forums/de-modelbouwkroeg/135271-vakantie-vragen-overzicht-niet-nl-modelbouw-fora.html), but the Greek fora are still...
Forum: Electric Ducted Fan Jets 10-15-2012, 09:08 PM
Replies: 128
Views: 47,697
Posted By ron_van_sommeren
Building a Horten XII, prototype for a kit,...

Building a Horten XII, prototype for a kit, plenty of pictures.
translated...
www.modelbouwforum.nl/forums/bouwverslagen-vliegen/166801-horten-xii-v2.html...
Forum: Brushless Motor Construction 10-14-2012, 11:23 AM
Replies: 26
Views: 4,446
Posted By ron_van_sommeren
Magnets (or magnetpoles) must be installed...

Magnets (or magnetpoles) must be installed alternating(ly?)
N-S-N-S-N- ... etc
or
NN-SS-NN-SS-NN- ... etc. (tiled/cascaded magnetpoles)
Check it with a spare magnet:...
Forum: Power Systems 10-06-2012, 10:35 AM
Replies: 15
Views: 1,248
Posted By ron_van_sommeren
Inductance does not change, it's a wire/wiring...

Inductance does not change, it's a wire/wiring property.

Each time the controller chops (on->off) a large current flows through the caps.Therefore, the higher the PWM chopping...
Forum: Power Systems 10-03-2012, 04:43 PM
Replies: 15
Views: 1,248
Posted By ron_van_sommeren
How do you fly? Throttle management or WOT most...

How do you fly? Throttle management or WOT most of the time? Six feet is a LOT.

Battery wire resistance (voltage and power loss) is not the issue, when talking about long battery wires will kill...
Forum: Beginners 10-02-2012, 07:09 PM
Replies: 6
Views: 416
Posted By ron_van_sommeren
E-flight 101 by RCG member Ken Myers, will at...

E-flight 101 by RCG member Ken Myers, will at least save you a ruined LiPo (or worse!), a burnt motor and a fried ESC:
The Ampeer (http://www.theampeer.org/framesefo.html)
-> Electric Power Basics...
Forum: Power Systems 10-02-2012, 07:04 PM
Replies: 15
Views: 1,248
Posted By ron_van_sommeren
And take precautions if you cannot but extend the...

And take precautions if you cannot but extend the battery wires.
too long battery wires will kill ESC over time
Contents (http://www.rcgroups.com/forums/showthread.php?t=952523) Problem
...
Forum: Brushless Motor Construction 10-02-2012, 06:59 PM
Replies: 26
Views: 4,446
Posted By ron_van_sommeren
That is the hook up of the three wires, in star...

That is the hook up of the three wires, in star and delta are the two possible hook-ups of the wires after winding. Star and delta are not winding diagrams.

You probably used ABCABCABC, as in the...
Forum: General Electric Discussions 10-02-2012, 06:45 PM
Replies: 26
Views: 1,196
Posted By ron_van_sommeren
O8b9LaZEWv0

O8b9LaZEWv0
Forum: Power Systems 10-02-2012, 06:40 PM
Replies: 15
Views: 1,248
Posted By ron_van_sommeren
Hot air. There is already a lot of wire in the...

Hot air. There is already a lot of wire in the motorcoils. Even different wire lengths don't matter. And information travels at the speed of light 300.000.000m/s
Forum: Brushless Motor Construction 09-30-2012, 04:45 PM
Replies: 26
Views: 4,446
Posted By ron_van_sommeren
Several winding diagrams on Christo's page there....

Several winding diagrams on Christo's page there. Which one are you referring to?

Magnet placement is pretty poor, more cogging, more noise.

Did you remove wire insulation (lacquer) before...
Forum: Beginners - Helis 09-30-2012, 04:36 PM
Replies: 1
Views: 459
Posted By ron_van_sommeren
Meet the natives www.rcmf.co.uk

Meet the natives
www.rcmf.co.uk
Showing results 1 to 30 of 500

 
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