Search: Posts Made By: ron_van_sommeren
Showing results 1 to 30 of 500
Search took 0.02 seconds.
10-20-2020, 12:10 AM
Replies: 4
Views: 798
Posted By ron_van_sommeren

Current and power drawn are proportional to...

Current and power drawn are proportional to voltage squared respectively voltage cubed.
Going from 12s to 14s, current drawn wants to increase by factor (14/12)²= 1.3, 30% extra.
Power drawn wants...
Forum: Power Systems
09-18-2020, 12:39 PM
Replies: 8
Views: 1,265
Posted By ron_van_sommeren

(UBEC is just a propriatery brand name, zero...

(UBEC is just a propriatery brand name, zero information in it, I prefer LBEC (linear) and switching SBEC (switching), gives more info.)

Don't use a linear LBEC above 3s.
The higher the...
Forum: Power Systems
09-18-2020, 12:38 PM
Replies: 8
Views: 1,265
Posted By ron_van_sommeren

Don't forget to remove the red pin from one of...

Don't forget to remove the red pin from one of your ESC connectors. Otherwise you get two (slightly) different voltages, linear lbec and battery, or lbec and lbec, fighting each other. Or in the case...
Forum: Humor
09-09-2020, 08:51 PM
Replies: 4
Views: 975
Posted By ron_van_sommeren

I have a similar story myself, from many moons...

I have a similar story myself, from many moons ago, about using Veet chemical depilatory instead of shaving, in/on a slightly different, more forward location, the day before my birthday. I will not...
Forum: Humor
09-08-2020, 05:33 PM
Replies: 4
Views: 975
Posted By ron_van_sommeren

About shaving your ass hair.

From Reddit.

Before shaving your ass hair, READ THIS STOP! Before you do, read this. You may change your mind. I have recently made a mistake in my life, and I offer my story to all though...
09-04-2020, 02:38 PM
Replies: 2
Views: 1,293
Posted By ron_van_sommeren

You and I should post more :) Prettig weekend.

You and I should post more :)
Prettig weekend.
Forum: Humor
08-25-2020, 02:14 PM
Replies: 1
Views: 278
Posted By ron_van_sommeren

Thanks Don, another sleepless night of tossing...

Thanks Don, another sleepless night of tossing and turning in my bed :D
Forum: Beginners
08-17-2020, 12:05 PM
Replies: 6
Views: 1,461
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.
About derating motors, controllers, batteries, electronics in general:


Derating, starting at ... Then there is the 75% rule of thumb ......
Forum: Beginners
08-17-2020, 11:54 AM
Replies: 6
Views: 1,461
Posted By ron_van_sommeren

Both current and power drawn are proportional to...

Both current and power drawn are proportional to diameter⁴ (http://mh-aerotools.de/airfoils/propuls2.htm#MultibladeSelection), here they would increase by factor (14/13)⁴=1.35, 35%more.
(Ignoring...
08-14-2020, 07:27 PM
Replies: 8
Views: 1,882
Posted By ron_van_sommeren

Of course Dave, by all means, go ahead. And thank...

Of course Dave, by all means, go ahead. And thank you :)
08-14-2020, 12:51 PM
Replies: 8
Views: 1,882
Posted By ron_van_sommeren

Training/trainer suggestions: Advice for...

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)

Some well-structured reading for...
08-04-2020, 02:08 AM
Replies: 3
Views: 1,812
Posted By ron_van_sommeren

And don't forget to list battery voltage as well....

And don't forget to list battery voltage as well.

To give you a rough idea, current drawn is proportional to pitch, #blades and diameter⁴ :eek::eek::eek::eek:
Current is also proportional to...
07-27-2020, 05:24 PM
Replies: 0
Views: 1,606
Posted By ron_van_sommeren

DreamLab app, your smartphone computing against corona and cancer while you sleep.

Only does calculations whilst on charger.
Not only for Vodafone, and also for WiFi.
More info
Coronavirus research app vodafone dreamlab - Evening Standard...
Forum: Beginners
07-25-2020, 01:59 AM
Replies: 3
Views: 1,513
Posted By ron_van_sommeren

Good point about the balancing current, +1. ...

Good point about the balancing current, +1.

Another good point, this time by me ;)
Warm pack to 40°C/100°F for about one hour (through and through), for best performance and longest life.

Some...
Forum: Beginners
07-25-2020, 12:19 AM
Replies: 3
Views: 1,513
Posted By ron_van_sommeren

Manufacturers state max. current and max. power,...

Manufacturers state max. current and max. power, but most of them forget to mention that those two maxima cannot be achieved simultaneously. Max. power plays an important role toomax.chargingcurrent...
Forum: Beginners
07-25-2020, 12:06 AM
Replies: 14
Views: 2,318
Posted By ron_van_sommeren

Connector saudering videos, several types ...

Connector saudering videos, several types
www.innov8tivedesigns.com (http://www.innov8tivedesigns.com)→ resources → video classroom → soldering videos

DIY connector soldering jig, also keeps pins...
Forum: Beginners
07-15-2020, 04:12 PM
Replies: 14
Views: 2,318
Posted By ron_van_sommeren

I like to bang on about a common (expensive and...

I like to bang on about a common (expensive and risky) misconception about Kv.
Kv says very little about max.power or max. current a motor can handle, or about max. torque, or propsize. A 1:1 train...
Forum: Beginners
07-15-2020, 04:03 PM
Replies: 14
Views: 2,318
Posted By ron_van_sommeren

I would/did solder new servo wires. Extra...

I would/did solder new servo wires. Extra connectors are extra points of failure.
...
Forum: Beginners
07-15-2020, 03:59 PM
Replies: 14
Views: 2,318
Posted By ron_van_sommeren

This will get you up to speed. Some...

This will get you up to speed.
Some well-structured reading for rainy/windy days, including two online books, and some handy e-tools as well.
Will save you, and us...
Forum: Beginners
07-04-2020, 04:31 PM
Replies: 5
Views: 13,273
Posted By ron_van_sommeren

Don't waste your time guys, not replying seems to...

Don't waste your time guys, not replying seems to be default mode, or spammer/scammer:
https://www.hooked-on-rc-airplanes.com/battery-capacity-for-a-20cc-rc-airplane.html
07-04-2020, 12:33 PM
Replies: 8
Views: 2,616
Posted By ron_van_sommeren

Below an excellent quote, a step by step...

Below an excellent quote, a step by step instruction for motor selection.
From
brushless motors Kv? (https://www.rcgroups.com/forums/showthread.php?2083459-brushless-motors-kv).



Vriendelijke...
07-01-2020, 12:13 PM
Replies: 8
Views: 2,616
Posted By ron_van_sommeren

Keep esc(s) close to battery(s), extend...

Keep esc(s) close to battery(s), extend motorwires, not the batterywires.
too long wires batteryside will kill ESC over time: precautions, solutions & workarounds, pictures - RCG...
06-30-2020, 04:09 AM
Replies: 35
Views: 7,951
Posted By ron_van_sommeren

Don't bother guys, google the first sentence or...

Don't bother guys, google the first sentence or first two sentences and you'll find same post on other fora. about gold, embroidery, pearls. All by one post wonders.
06-25-2020, 07:06 PM
Replies: 3
Views: 2,225
Posted By ron_van_sommeren

Merci :) Another Nederlander, building two...

Merci :)

Another Nederlander, building two works of art:
translate...Nieuport 28 C1, schaal 1:3 met scratchbuild 475cc Gnome Monosoupape...
06-25-2020, 06:58 PM
Replies: 6
Views: 2,545
Posted By ron_van_sommeren

Connector tests, plus pictures ...

Connector tests, plus pictures
translate...www.elektromodellflug.de/hochstrom-st.-bu..html...
06-16-2020, 08:03 PM
Replies: 2
Views: 1,708
Posted By ron_van_sommeren

Other animations by Pierre Janssen...

Other animations by Pierre Janssen (https://www.pjvision.nl)
Gnome 9-B2 Monosoupape rotary engine assembly animation (11min.)...
06-16-2020, 08:02 PM
Replies: 2
Views: 1,708
Posted By ron_van_sommeren

Animation of Vickers Mk1 machine gun (4min.)

https://youtu.be/bpQ1r5KctVE

https://youtu.be/j1OxWxYAGlc
06-16-2020, 07:58 PM
Replies: 3
Views: 2,225
Posted By ron_van_sommeren

Gnome 9-B2 Monosoupape rotary engine assembly animation (11min.)

Rotary engines and Sopwith Camel info by Pierre Janssen
www.PJvision.nl (https://www.pjvision.nl)

More rotary engine animations and videos by Pierre Janssen, Clerget, Bentley, Gnome, Le Rhône:...
06-16-2020, 02:18 AM
Replies: 7
Views: 2,133
Posted By ron_van_sommeren

More videos ...

More videos
https://www.youtube.com/results?search_query=rcmodelreviews+charger

https://www.youtube.com/watch?v=kvr-25yGeVk

https://www.youtube.com/watch?v=R6U9QJVGevI
...
06-16-2020, 02:01 AM
Replies: 7
Views: 2,133
Posted By ron_van_sommeren

You look at charger max. charge current and max....

You look at charger max. charge current and max. voltage of course. But what manufactures/sellers usually don't tell you is that most chargers cannot achieve those two maxima simultaneously, because...
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 © 2018 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 0.05916 seconds with 7 queries