Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Search Forums
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

Thank you for your support (hide ads)

Showing results 1 to 12 of 12
Search took 0.01 seconds.
Search: Posts Made By: dereckbc
Forum: Batteries & Chargers 12-14-2014, 05:34 PM
Replies: 65
Views: 745
Posted By dereckbc
Nigel the thread is offered as informational...

Nigel the thread is offered as informational because Ri affects many operational characteristics. If someone wants to log it fine, if not fine. It can be as simple writing the base reference on the...
Forum: Batteries & Chargers 12-11-2014, 09:11 PM
Replies: 65
Views: 745
Posted By dereckbc
What Is Your Battery Internal Resistance?

After a couple of request to start a thread for a possible Stcky thought I would give it a shot. So what is your batteries Internal Resistance (Ri in this discussion), and what can you do with it is...
Forum: Electric Ducted Fan Jets 12-11-2014, 06:38 AM
Replies: 36
Views: 362
Posted By dereckbc
One last comment on Puffing or Swelling. It is...

One last comment on Puffing or Swelling. It is nornal for the battery to get a little puffy during a full charge, or heavy discharge. After the battery cools the gas recombines back into a liquid...
Forum: Electric Ducted Fan Jets 12-10-2014, 10:07 PM
Replies: 12
Views: 200
Posted By dereckbc
Perhaps this will help. Lithium batteries are...

Perhaps this will help. Lithium batteries are unique to the battery world, especially when compared to lead acid batteries.

To compound matters LiPo is kind of an Oxymoron because it does not...
Forum: Electric Ducted Fan Jets 12-10-2014, 01:31 AM
Replies: 36
Views: 362
Posted By dereckbc
Not at all too late. Just like smoking, never too...

Not at all too late. Just like smoking, never too late to quit. You just get better results the sooner you start.

If you search around on battery manufacture web sites, all the quality...
Forum: Electric Ducted Fan Jets 12-09-2014, 09:49 PM
Replies: 36
Views: 362
Posted By dereckbc
This is one thing I know a lot about after 35...

This is one thing I know a lot about after 35 years working professionally as an EE who specializes in Emergency Power and Generation.

Ri = Internal Resistance and is one of the most important...
Forum: Batteries & Chargers 08-10-2014, 11:16 PM
Replies: 2
Views: 279
Posted By dereckbc
Taking efficiency into account, and not wanting...

Taking efficiency into account, and not wanting to discharge your donor battery past 50% DOD, you should be able to charge 8 to 9 of the 3S 2200 mah batteries. Don't go past 10 and make sure your...
Forum: General Electric Discussions 08-04-2014, 06:23 PM
Replies: 11
Views: 556
Posted By dereckbc
OK guys help me out here. How do I know the...

OK guys help me out here. How do I know the physical size wil fit the hole in my plane? Unfortunately the Visionaire spec does not list one single spec for this servo, most notable the physical size...
Forum: Beginners 07-10-2014, 03:41 AM
Replies: 37
Views: 2,140
Posted By dereckbc
Newbie I do not know if you are still monitoring...

Newbie I do not know if you are still monitoring this thread but I think I can help you because I was in your shoes a year ago with the same plane. Mine is now modified with a larger motor and prop,...
Forum: Off Topic Chit Chat 10-09-2013, 03:28 AM
Replies: 26
Views: 1,472
Posted By dereckbc
If you do not have pets around set out trays of...

If you do not have pets around set out trays of Anti-Freeze. It is sweat and delicious no animal can resist. Just use something like a tuna fish can only 1/3 full. More than enough to kill 100 mice,...
Forum: Batteries & Chargers 07-27-2013, 08:13 PM
Replies: 63
Views: 3,332
Posted By dereckbc
Sorry but the Harbor Fright Solar panels are not...

Sorry but the Harbor Fright Solar panels are not worth the box they come in. At best they only can supply up to 3 amps of charge current @ 12 volts on an extremely bright sunny day facing directly...
Forum: Beginners 07-25-2013, 11:24 PM
Replies: 42
Views: 1,986
Posted By dereckbc
[QUOTE=solentlife;917353]Sorry but I read posts...

[QUOTE=solentlife;917353]Sorry but I read posts that have missed a point.... the OP says "experienced flyer" so why some of the answers above? /QUOTE]Because the Apprentice fits the bill and looks...
Showing results 1 to 12 of 12

 
Forum Jump

All times are GMT +1. The time now is 10:43 AM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.13382 seconds with 13 queries