Search: Posts Made By: ron_van_sommeren
Showing results 1 to 30 of 500
Search took 0.02 seconds.
Forum: Power Systems
01-16-2022, 09:58 PM
Replies: 6
Views: 127
Posted By ron_van_sommeren

Don't forget to measure current as well.

Don't forget to measure current as well.
Forum: Beginners
12-28-2021, 10:12 PM
Replies: 13
Views: 408
Posted By ron_van_sommeren

Costs less than a broken prop per year :) ...

Costs less than a broken prop per year :)

List of free and paid calculators
e-flight calculators (compilation) - RCG...
Forum: Power Systems
12-28-2021, 09:05 PM
Replies: 0
Views: 255
Posted By ron_van_sommeren

Full version eCalc, free until Jan. 4th.

From the eCalc (http://www.ecalc.ch) FAQ, suggestions and help thread at
eCalc: Q&A for propCalc, fanCalc, heliCalc, xcopterCalc - RCGl...
Forum: Beginners
12-24-2021, 08:19 PM
Replies: 13
Views: 408
Posted By ron_van_sommeren

Another possible scenario. Overheating...

Another possible scenario.

Overheating magnets causes de-magnetizing (https://en.wikipedia.org/wiki/Curie_temperature) (irreversible! :(), which in turn results in higher velocity konstant Kv...
12-23-2021, 08:29 PM
Replies: 4
Views: 1,149
Posted By ron_van_sommeren

How about disabling new member registration for a...

How about disabling new member registration for a while, say for one, two weeks or so?
Forum: Beginners
12-23-2021, 08:11 PM
Replies: 13
Views: 408
Posted By ron_van_sommeren

Keep in mind that the plane does not care about...

Keep in mind that the plane does not care about systemvoltage. It's a practical consideration, not an electrical consideration.
3s in combination with velocity konstant Kv...
Forum: Beginners
12-23-2021, 08:08 PM
Replies: 13
Views: 408
Posted By ron_van_sommeren

A Nobel Prize in the making. Conservative...

A Nobel Prize in the making.

Conservative rule of thumb for max.continuous power: 4watt per gram motormass.

Efficiency is Power_out/Power_in. However, here they are talking effectivity.
12-23-2021, 05:44 PM
Replies: 4
Views: 1,149
Posted By ron_van_sommeren

Several new 'iffy' members, judging by their name...

Several new 'iffy' members, judging by their name and name-structure, but these are dead giveaways:
hpoj6950setup
Volopaamorp
Raymondfuest
buraqautomotive
teen_girlsPeege
hydraruzxpnew4afKew...
Forum: Power Systems
12-14-2021, 05:02 PM
Replies: 6
Views: 353
Posted By ron_van_sommeren

I don't like making errors, I don't like...

I don't like making errors, I don't like criticism, I don't like it when I spread errors/mistake/misconceptions.
Forum: Power Systems
12-14-2021, 03:07 PM
Replies: 6
Views: 353
Posted By ron_van_sommeren

Keep in mind that a plane propeller cannot...

Keep in mind that a plane propeller cannot cavitate, it needs a liquid to cavitate:
wikipedia: Cavitation (https://en.wikipedia.org/wiki/Cavitation).

Like a wing the propeller stalls:
wikipedia:...
Replies: 4
Views: 679
Posted By ron_van_sommeren

You'll lose range. Just solder the two sections.

You'll lose range.
Just solder the two sections.
12-05-2021, 05:34 PM
Replies: 4
Views: 1,149
Posted By ron_van_sommeren

jeansboutique

jeansboutique
11-30-2021, 07:08 PM
Replies: 4
Views: 1,149
Posted By ron_van_sommeren

Pre-emptive 'member' removal?

Suggestions:
drkamagra
goldsilverratetoday

yellowscomtw
markcalculate

More suggestions:
www.wattflyer.com/forums/memberlist.php?&order=desc&sort=joindate...
11-26-2021, 11:41 PM
Replies: 10
Views: 2,086
Posted By ron_van_sommeren

This one popped up yesterday. ...

This one popped up yesterday.

https://www.youtube.com/watch?v=wk6Qr6OO5Xo
10-27-2021, 03:35 PM
Replies: 1
Views: 685
Posted By ron_van_sommeren

Don't bother guys. Message is a straight copy...

Don't bother guys.
Message is a straight copy from this 2018 post:
www.wattflyer.com/forums/showthread.php?p=1015377 (https://www.wattflyer.com/forums/showthread.php?p=1015377)
10-13-2021, 09:50 PM
Replies: 5,516
Views: 1,153,011
Posted By ron_van_sommeren

Welcome :) Forum suggestion: You are...

Welcome :)

Forum suggestion:
You are burying your questions in a very general unrelated introduction thread.

Better post/start/search in dedicated subfora for more and (relevant)knowledgeable...
Forum: 3D Flying
10-11-2021, 12:13 AM
Replies: 5
Views: 891
Posted By ron_van_sommeren

www.kontronik.com/en/products/motors/ksg/ksg.html...

www.kontronik.com/en/products/motors/ksg/ksg.html (http://www.kontronik.com/en/products/motors/ksg/ksg.html)
Forum: 3D Flying
10-10-2021, 08:44 PM
Replies: 5
Views: 891
Posted By ron_van_sommeren

The model has a span of 2.6 meters and is...

The model has a span of 2.6 meters and is operated on 14S with the KONTRONIK helical gearbox, the PYRO 850-50L and a COOL KOSMIK 200 HV

https://youtu.be/oadiW-N7T78
Forum: 3D Flying
10-09-2021, 07:52 PM
Replies: 5
Views: 891
Posted By ron_van_sommeren

www.plettenberg-motoren.com ...

www.plettenberg-motoren.com
www.lehner-motoren.com
www.kontronik.com (http://www.kontronik.com/en.html)
www.modelmotors.cz
shop.torcman.de (https://shop.torcman.de/)
www.hacker-motor.com...
10-06-2021, 12:31 AM
Replies: 4
Views: 962
Posted By ron_van_sommeren

@moderators This is not the first copy message...

@moderators
This is not the first copy message troll post here, and on other fora as well, probably not the last one either.
How about a mandatory waiting period between registration and first post?
10-05-2021, 09:27 PM
Replies: 4
Views: 962
Posted By ron_van_sommeren

Female username, hmm, lets search for exact...

Female username, hmm, lets search for exact phrase...
Forum: Beginners
09-29-2021, 06:26 PM
Replies: 1
Views: 200
Posted By ron_van_sommeren

Some well-structured reading for rainy/windy...

Some well-structured reading for rainy/windy days, including e-flight_101 & 102, and some handy e-tools.
Will save you, and us :D a lot of questions. Notably the 'what went wrong?' kind of questions...
09-28-2021, 06:46 PM
Replies: 5
Views: 903
Posted By ron_van_sommeren

Info and tests, about C-ratings, discharge rates,...

Info and tests, about C-ratings, discharge rates, stickertuning and other blatant lies. Using uniform tests, getting published/referred in opening posts:
Battery Load Test Comparisons - RCG...
09-17-2021, 12:43 PM
Replies: 12
Views: 1,052
Posted By ron_van_sommeren

Motors can handle any voltage in RC land, as long...

Motors can handle any voltage in RC land, as long as rpm and current don't get too high.
Wire insulation lacquer/resin is tested up to several hundred volt.
09-17-2021, 12:35 PM
Replies: 12
Views: 1,052
Posted By ron_van_sommeren

That would not be necessary if your setup only...

That would not be necessary if your setup only draws say 50A.
A setup draws the current it has to draw, even if it would lead to destruction of battery, controller or motor.
At full throttle ESC...
09-09-2021, 02:13 PM
Replies: 11
Views: 8,562
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, 07:09 AM
Replies: 6
Views: 1,116
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, 07:07 AM
Replies: 6
Views: 1,116
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, 07:05 AM
Replies: 6
Views: 1,116
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, 07:01 AM
Replies: 6
Views: 1,116
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...
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 0.07554 seconds with 7 queries