Search: Posts Made By: ron_van_sommeren
Showing results 1 to 30 of 500
Search took 0.02 seconds.
09-09-2021, 01:13 PM
Replies: 11
Views: 7,771
Posted By ron_van_sommeren

RCG user skylar a.k.a. Christo van der Merwe, has...

RCG user skylar a.k.a. Christo van der Merwe, has built several wind generators
www.bavaria-direct.co.za (http://www.bavaria-direct.co.za)
→ Generators
09-06-2021, 06:09 AM
Replies: 6
Views: 227
Posted By ron_van_sommeren

If you cannot but extend, extend the motorwires,...

If you cannot but extend, extend the motorwires, not the batterywires, and keep controller(s) close to battery(s).
No need for extra input capacitors, resulting in more space, less costs and less...
09-06-2021, 06:07 AM
Replies: 6
Views: 227
Posted By ron_van_sommeren

UBEC is an old propriatery brand name, a generic...

UBEC is an old propriatery brand name, a generic informationless acronym for a standalone BEC: Universal BEC.
I prefer LBEC, linear (https://en.wikipedia.org/wiki/Power_supply#Linear_regulator), and...
09-06-2021, 06:05 AM
Replies: 6
Views: 227
Posted By ron_van_sommeren

Do you have flying experience? With? ...

Do you have flying experience? With?

Brushless motors each must have their own brushless controller.

Don't use banana plugs, poor contact, high resistance, not designed for high current.
...
09-06-2021, 06:01 AM
Replies: 6
Views: 227
Posted By ron_van_sommeren

Current is too high for battery and/or battery...

Current is too high for battery and/or battery not fully charged?
Have you measured current?
How did you decide upon voltage, Kv and fan-type?

A batterytester is very crude, not really a good...
09-03-2021, 06:18 AM
Replies: 3
Views: 211
Posted By ron_van_sommeren

If you cannot but extend, extend the motorwires,...

If you cannot but extend, extend the motorwires, not the batterywires, and keep controller(s) close to battery(s).
No need for extra input capacitors, resulting in more space, less costs and less...
Forum: Power Systems
09-03-2021, 06:12 AM
Replies: 8
Views: 262
Posted By ron_van_sommeren

At wide open throttle the ESC has no say in...

At wide open throttle the ESC has no say in current and power drawn, it will pass those on as the system demands, even if it would lead to its fiery death.

The system
An e-motor will try to keep...
Forum: Power Systems
09-03-2021, 06:06 AM
Replies: 8
Views: 262
Posted By ron_van_sommeren

I don't want to be the proverbial wet blanket but...

I don't want to be the proverbial wet blanket but I feel obliged to warn you.
25kiloWatt is a lot of power for an electrics and eflight noob, especially with a prop attached to it.
Even though I am...
Forum: Power Systems
09-01-2021, 03:26 AM
Replies: 8
Views: 262
Posted By ron_van_sommeren

What is your project, what do you want to power,...

What is your project, what do you want to power, what do you want to achieve?
Is it RC, man-carrying, traction, boat, ...?
Where do you live?

Each brushless motor needs its own brushless...
09-01-2021, 02:53 AM
Replies: 2
Views: 222
Posted By ron_van_sommeren

In Europe www.heerdegen-balsaholz.de , English...

In Europe
www.heerdegen-balsaholz.de , English & German
www.thomabalsa.com
Forum: Beginners
08-26-2021, 06:16 PM
Replies: 3
Views: 258
Posted By ron_van_sommeren

There's absolutely no need to crash it prof,...

There's absolutely no need to crash it prof, crashing does not have to be a given.
I.e. if you can get someone to check/measure/correct your build/setup and let him do the first and tuning flights....
08-23-2021, 08:37 PM
Replies: 16
Views: 2,660
Posted By ron_van_sommeren

Agreed, Lucien Miller does and knows his...

Agreed, Lucien Miller does and knows his business, excellent advice, does all the prop testing.
Forum: Power Systems
08-22-2021, 02:42 AM
Replies: 6
Views: 240
Posted By ron_van_sommeren

Connect ESC to other receiver channel, to keep...

Connect ESC to other receiver channel, to keep power, and connect servo to throttle channel.
Is servo throw what you would expect?
Can you see output of that channel on transmitter display?
Are...
Forum: Power Systems
08-21-2021, 02:03 AM
Replies: 6
Views: 240
Posted By ron_van_sommeren

A brushless controller + motor constitute an...

A brushless controller + motor constitute an isosynchronous closed loop system. Therefore, without a working motor connected to the ESC, you won't be able to see/measure anything.
A brushless motor...
07-16-2021, 11:52 PM
Replies: 3
Views: 455
Posted By ron_van_sommeren

Same make/type/capacity/C-ratinghistory, charge...

Same make/type/capacity/C-ratinghistory, charge and discharge them as one pack.
Forum: Beginners
07-06-2021, 09:29 PM
Replies: 4
Views: 482
Posted By ron_van_sommeren

Hold yer horses! Some useful and I hope...

Hold yer horses!
Some useful and I hope instructive insights first, before you start plugging in numbers. To get some feeling/insight, and to get rid of a few possible misconceptions.

The 'full'...
Forum: Beginners
07-05-2021, 08:52 PM
Replies: 4
Views: 482
Posted By ron_van_sommeren

That advice is obsolete now. Nowadays it's...

That advice is obsolete now. Nowadays it's brushless: lower weight and higher efficiency.
Don't forget: you need a brushless controller for a brushless motor. (And a brushed controller for a brushed...
07-03-2021, 04:44 PM
Replies: 2
Views: 285
Posted By ron_van_sommeren

www.hyperion-world.com motors and controllers...

www.hyperion-world.com motors and controllers with an 'S' in their designation were(are?) produced by www.scorpionsystem.com (https://www.scorpionsystem.com/).
Quality.
Forum: Beginners
07-03-2021, 12:46 AM
Replies: 10
Views: 624
Posted By ron_van_sommeren

Explained here: ...

Explained here:
www.rcgroups.com/forums/showthread.php?3863789-My-Post-was-Marked-as-Spam-it-s-my-first-Thread%21%21-What-Gives#post46858085...
07-02-2021, 07:40 PM
Replies: 2
Views: 285
Posted By ron_van_sommeren

Is it this type you're looking for, 'tapered', or...

Is it this type you're looking for, 'tapered', or specific power/current/Kv/mass/dimensions?
If you cannot find one, AXI has 'tapered' motors too
www.modelmotors.cz


You can set e-mail...
Forum: Beginners
07-02-2021, 01:36 AM
Replies: 10
Views: 624
Posted By ron_van_sommeren

I assumed you are an electrical engineer. Like me...

I assumed you are an electrical engineer. Like me :)
Forum: Beginners
07-01-2021, 09:23 PM
Replies: 8
Views: 643
Posted By ron_van_sommeren

I would not worry about that happening with that...

I would not worry about that happening with that type of RC model ;)
Forum: Beginners
07-01-2021, 09:21 PM
Replies: 10
Views: 624
Posted By ron_van_sommeren

I'm probably preaching to the choir here, but...

I'm probably preaching to the choir here, but motors don't produce thrust, propellors generate thrust.
Prop recipe for lots of thrust but no speed: large diameter, low pitch :D
Forum: Beginners
06-29-2021, 04:52 PM
Replies: 10
Views: 624
Posted By ron_van_sommeren

There were several 1:1 e-flight e-mail discussion...

There were several 1:1 e-flight e-mail discussion groups on groups.yahoo.com (http://groups.yahoo.com), before Yahoo pulled the plug on e-mail groups in 2020. I was moderator/'owner' of two RC...
Forum: Beginners
06-25-2021, 10:55 PM
Replies: 8
Views: 643
Posted By ron_van_sommeren

And since you're an engineer, motorcurrent is...

And since you're an engineer, motorcurrent is proportional to voltage squared :eek::eek:
Even seemingly small changes in power system can have massive effects. The relationships...
Forum: Beginners
06-25-2021, 10:52 PM
Replies: 8
Views: 643
Posted By ron_van_sommeren

I would shelve that Pup, for now. ...

I would shelve that Pup, for now.
Training/trainer suggestions:
Advice for getting into flying RC airplanes, and how not to - The Ampeer (http://www.theampeer.org/Begin-RC/Begin-RC.htm)


This...
06-21-2021, 06:28 PM
Replies: 3
Views: 225
Posted By ron_van_sommeren

OP is a slightly modified version of this post,...

OP is a slightly modified version of this post, probably by the same troll:
www.wattflyer.com/forums/showthread.php?t=81672
06-21-2021, 06:25 PM
Replies: 3
Views: 180
Posted By ron_van_sommeren

OP is a slightly modified version of this post,...

OP is a slightly modified version of this post, probably by the same troll:
www.wattflyer.com/forums/showthread.php?t=81576
Forum: Power Systems
06-15-2021, 03:04 PM
Replies: 1
Views: 574
Posted By ron_van_sommeren

What will be the wire length between battery and...

What will be the wire length between battery and controller, and between controller and motor?


If you cannot but extend, extend the motorwires instead of batterywires and keep controller(s)...
Forum: Humor
06-11-2021, 04:03 PM
Replies: 5
Views: 2,682
Posted By ron_van_sommeren

Plus the chamber plants, plus the net curtains.

Plus the chamber plants, plus the net curtains.
Showing results 1 to 30 of 500
 


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.08472 seconds with 7 queries