RCU Forums - Search Results
RCU Forums

Go Back  RCU Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Community
Calendar
Today's Posts
Search
Vendor Directory
Notices
 
Page 1 of 2
1
2
Search: Posts Made By: whanderson
Showing results 1 to 25 of 29
Search took 0.63 seconds.
Forum: The Clubhouse
12-26-2015, 08:07 PM
Replies: 7,505
Views: 626,538
Posted By whanderson

I must admit I just read the advisory in full. ...

I must admit I just read the advisory in full. Should have read it first instead of the emails sent by somebody's uncle who forwarded to their second cousin twice removed who sent it to Darth...
Forum: The Clubhouse
12-26-2015, 07:31 PM
Replies: 7,505
Views: 626,538
Posted By whanderson

Really?? Doesn't it seem a little suspicious...

Really?? Doesn't it seem a little suspicious that an AMA email "stopping operations" at our field comes out on Christmas day. Everything I have read on this is quite vague. Do we have any real...
Forum: The Clubhouse
12-28-2014, 08:13 AM
Replies: 7,505
Views: 626,538
Posted By whanderson

I am in agreement with your position. Some of us...

I am in agreement with your position. Some of us can only fly on weekends and giving up 2 Saturdays with little or no benefit to the club makes no sense.
Forum: Electric Training
05-10-2011, 07:12 PM
Replies: 18
Views: 2,704
Posted By whanderson

RE: Higher C advantages and disadvantages

The term C is stands for Capacity. Internal resistance is stated in Ohms (miliOhms for batteries). Battery internal resistance is not static. The value of internal resistance is dependent on the...
Forum: Electric Training
05-10-2011, 02:18 PM
Replies: 18
Views: 2,704
Posted By whanderson

RE: Higher C advantages and disadvantages

First let me say that "C" is a measure of how fast a battery can be safely discharged. It has nothing to do with the total (total being the operative word) amount of power a battery can supply. For...
Forum: FPV, UAV & Drones
03-09-2011, 01:30 PM
Replies: 6
Views: 1,139
Posted By whanderson

RE: Interference avoidance

Systems working at 2.4Ghz are usually spread spectrum technology. This is very different than the older analog systems we have used in the past. I don't know how much detail you want, but this...
Forum: S.P.A.D. Aircraft - Coroplast design
01-17-2010, 06:37 PM
Replies: 8
Views: 1,789
Posted By whanderson

RE: $75 to ship coro!!!

Propriv,

I picked up a 2mm 4 x 8 sheet of yellow coro from Harbor Sales about a month ago. They are in Maryland near the Delaware border. I will be going to Carlisle, MA in a couple of weeks. ...
Forum: Brushed/Brushless motors, speed controls, gear drives
07-14-2005, 10:06 PM
Replies: 17
Views: 1,463
Posted By whanderson

RE: Jetti Voltage Cutoff To Low???

Thunder Power #1, Kokam #2, Polyquest a close #3.
Forum: Brushed/Brushless motors, speed controls, gear drives
05-03-2005, 08:28 AM
Replies: 7
Views: 2,030
Posted By whanderson

RE: Wires becoming very hot.

Matt,

The shortcoming is with the motors, not the LiPos IMHO. BTW - the 600s I cooked were 12V motors.
Forum: Brushed/Brushless motors, speed controls, gear drives
05-03-2005, 07:59 AM
Replies: 7
Views: 2,030
Posted By whanderson

RE: Wires becoming very hot.

Most can type motors are not LiPo friendly. Especially 3S packs. I have turned 2 600 and 4 400 motors black with the use of 3S LiPos. These motors are not designed to dissipate the higher power...
Forum: Brushed/Brushless motors, speed controls, gear drives
10-15-2003, 01:23 PM
Replies: 7
Views: 998
Posted By whanderson

RE: Electric power question

Folks, 20V is bigger than 10V even if the pack is similar in size and weight. 200 Watts is bigger than 50W even if the size and weight are similar. Matt, if you don't know what I mean by lighten...
Forum: Brushed/Brushless motors, speed controls, gear drives
10-14-2003, 01:14 PM
Replies: 7
Views: 998
Posted By whanderson

RE: Electric power question

Hmmm - seems like going from 8 to 16 cells is a bigger battery to me. Hey Matt, lighten up.
Forum: Brushed/Brushless motors, speed controls, gear drives
10-06-2003, 03:57 PM
Replies: 7
Views: 998
Posted By whanderson

RE: Electric power question

Let us, for the purposes of discussion, assume each motor uses 10A at 10V. In a parallel connection each motor will see 10A at 10V and the battery will see 20A at 10V. Each motor will use 100...
Forum: Brushed/Brushless motors, speed controls, gear drives
10-06-2003, 03:47 PM
Replies: 4
Views: 1,126
Posted By whanderson

RE: ESC overheating?

There is a rampant missunderstanding regarding ESCs, BECs, and current consumption. The ESC and BEC are functionally independant devices using the same power source and heat sink. The "brains" in...
Forum: Brushed/Brushless motors, speed controls, gear drives
10-06-2003, 06:28 AM
Replies: 2
Views: 1,196
Posted By whanderson

RE: speed 400 speed control plans

The article you mention was in RCM as a series, I don't remember the dates. Try an application note from Microchip - AN847. Their Web site is www.microchip.com
Forum: Brushed/Brushless motors, speed controls, gear drives
10-01-2003, 10:20 AM
Replies: 4
Views: 1,828
Posted By whanderson

RE: Forward and Reverse thrust in one!

OOPS!!! Boy did I mess up! Please do not follow the drawing in my first reply. Use this one. Sorry!!
Forum: Brushed/Brushless motors, speed controls, gear drives
10-01-2003, 10:00 AM
Replies: 4
Views: 1,828
Posted By whanderson

RE: Forward and Reverse thrust in one!

An all electronic solution involves useing 4 or more MOSFETs in an "H-bridge" configuration. This is how the recommended boat controllers switch direction. A simple mechanical approach is to use a...
Forum: Batteries & Chargers
09-30-2003, 02:03 PM
Replies: 11
Views: 1,752
Posted By whanderson

RE: Triton charger questions

Please keep the "KISS" principal in mind - Keep It Simple Stupid! Sounds to me like your making a simple thing difficult. I have been using the Triton for 9 monthe on NIMH, Li Polys, and lead acid...
Forum: Brushed/Brushless motors, speed controls, gear drives
09-26-2003, 11:33 AM
Replies: 9
Views: 1,962
Posted By whanderson

RE: onboard tach for brushless: cheat from motor wires?

I believe we are saying the same thing differently. Chatting with you is great fun! Thanks.
Forum: Brushed/Brushless motors, speed controls, gear drives
09-26-2003, 10:30 AM
Replies: 9
Views: 1,962
Posted By whanderson

RE: onboard tach for brushless: cheat from motor wires?

Please accept my appology if I am beating a dead horse on this. Your statement below is somewhat innacurate.



The applied voltage to the motor is always 0V or the battery voltage minus the...
Forum: Brushed/Brushless motors, speed controls, gear drives
09-26-2003, 10:06 AM
Replies: 9
Views: 1,962
Posted By whanderson

RE: onboard tach for brushless: cheat from motor wires?

I think we have a communication problem. I have used a scope to look at the waveforms in ESCs. In fact I have designed ESCs. I am not talking about looking at the leads between the motor and ESC. ...
Forum: Electric General Discussion
09-26-2003, 09:39 AM
Replies: 1
Views: 396
Posted By whanderson

RE: Outlaw flight times

I have had similar experiencies with the Outlaw. I removed the foam block that goes between the battery and receiver. This allows insetion of a 2 cell 600 mah Li-Poly. The Li-Poly weighs the same...
Forum: Brushed/Brushless motors, speed controls, gear drives
09-26-2003, 09:19 AM
Replies: 4
Views: 853
Posted By whanderson

RE: Speed controller advice

An 8 cell pack is 9.6V. Subtracting the BEC 5V ouput from the battery input is (9.6-5) is 4.6V. The 1A current maximum of the BEC means it has to be capable of eating 4.6W (4.6V*1A). This is about...
Showing results 1 to 25 of 29
 
Page 1 of 2
1
2


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.