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Search: Posts Made By: dereckbc
Forum: General Electric Discussions 06-19-2016, 12:46 AM
Replies: 18
Views: 636
Posted By dereckbc
Sorry for the late response, just seen this. ...

Sorry for the late response, just seen this.

Simple answer is DR and Expo in the TX will be on top of what is in the RX. Using an extreme example if you set the TX to 50%, and the RX to 50% you...
Forum: General Electric Discussions 06-16-2016, 04:23 AM
Replies: 14
Views: 446
Posted By dereckbc
God + Velcro + Battery = Miracle

OK now that I got your attention, read on.

If you have not heard we have had a lot of rain in Texas. I am in north TX and we have not had the rains like south and central TX, just 16 inches in 2...
Forum: General Electric Discussions 05-30-2016, 01:32 AM
Replies: 12
Views: 281
Posted By dereckbc
There are several ways to skin this cat. Some are...

There are several ways to skin this cat. Some are better than others, and others are just plain stupid and dangerous. There are two good ways to do this, but require some planning and knowledge.
...
Forum: General Electric Discussions 04-18-2016, 09:52 PM
Replies: 70
Views: 1,591
Posted By dereckbc
To do it again and again.

To do it again and again.
Forum: Electric Ducted Fan Jets 04-01-2016, 03:56 AM
Replies: 78
Views: 2,510
Posted By dereckbc
The two best things you can do to prolong Lithium...

The two best things you can do to prolong Lithium batteries is never charge them to more than 90%, or discharge them more than 90%. Do that and you double cycle life.
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 02-10-2016, 10:27 PM
Replies: 20
Views: 860
Posted By dereckbc
My two cents worth. Expo is the most useful...

My two cents worth.

Expo is the most useful followed by Dual Rates.

As mentioned Expo desensitizes the sticks. How much you put in depends on control surface size and the amount of Authority...
Forum: General Electric Discussions 02-06-2016, 04:09 AM
Replies: 46
Views: 1,681
Posted By dereckbc
I have a DX6 and live in Sherman TX. I will be...

I have a DX6 and live in Sherman TX. I will be happy to meet you at our club field and will not cost you anything more than your gas and time. About a 60 to 75 minute drive from Forth Worth. From DFW...
Forum: Multi-Rotors 01-20-2016, 03:17 PM
Replies: 14
Views: 813
Posted By dereckbc
Sure, any USB charger will work or any USB port....

Sure, any USB charger will work or any USB port. Having said that not all USB ports are equal, nor are USB chargers created equal.

USB 1 and 2.0 specifications used two different power sources (5V...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 01-18-2016, 02:48 PM
Replies: 9
Views: 508
Posted By dereckbc
You cannot use a "Y" harness. You will need to...

You cannot use a "Y" harness. You will need to plug each aileron into a separate channel. I might have this reversed but using a Spektrum TX/RX Left Aileron plugs into ch2 (aileron channel) and Right...
Forum: Batteries & Chargers 01-17-2016, 01:13 AM
Replies: 39
Views: 1,530
Posted By dereckbc
No not normal. Once lithium cells are balanced,...

No not normal. Once lithium cells are balanced, they stay in Balance. Only way to throw them out of balance is to have parasitic loads across the cells via balance plug. That can be a problem in...
Forum: 3D Flying 01-13-2016, 10:26 PM
Replies: 56
Views: 14,646
Posted By dereckbc
What RX do you have? I have mine pretty well...

What RX do you have? I have mine pretty well tuned in, but it is a Spektrum AR636. So unless yours is the same, not sure I can help.

What I can tell you is start slow and work your way up. Set...
Forum: Batteries & Chargers 01-09-2016, 09:12 PM
Replies: 28
Views: 1,479
Posted By dereckbc
That is incorrect. True no 2 cells have the same...

That is incorrect. True no 2 cells have the same Ri, but the Amp Hours in/out are exactly the same in any series circuit. Lithium batteries unlike all others is not a chemical reaction, it is a ion...
Forum: Batteries & Chargers 01-09-2016, 05:23 PM
Replies: 28
Views: 1,479
Posted By dereckbc
FWIW Lithium batteries do not drift much contrary...

FWIW Lithium batteries do not drift much contrary to what charge manufactures might tell you. Once Balanced properly at the Top or Bottom, lithium batteries do not become unbalanced anytime soon.
...
Forum: 3D Flying 01-05-2016, 04:20 AM
Replies: 56
Views: 14,646
Posted By dereckbc
Thanks but already built. My biggest issue during...

Thanks but already built. My biggest issue during the build was that POS Pull-Pull Rudder system. I ended up making my own system with different hardware.

As for the Visionaire vs Adiction I se...
Forum: General Electric Discussions 12-31-2015, 04:54 AM
Replies: 17
Views: 1,887
Posted By dereckbc
Spectrun AR636 AS3X RX Info Thread

OK this is not a thread to debate receivers with gyros. I get it some of you think it is cheating and does not allow RC pilots to learn the flying skills. It is thread to share and discuss primarily...
Forum: General Electric Discussions 12-17-2015, 04:43 PM
Replies: 261
Views: 6,461
Posted By dereckbc
It doesn't do anything to stop it. Just like Gun...

It doesn't do anything to stop it. Just like Gun control laws do not stop mass murder. It is another Power Grab by government. The best way to control any population or organization is by Fear and...
Forum: Batteries & Chargers 12-14-2015, 04:44 AM
Replies: 55
Views: 2,675
Posted By dereckbc
Same reason cigarettes, alcohol, and ladders are...

Same reason cigarettes, alcohol, and ladders are still being sold. Any of those 3 can kill you or others around you.

I am not jumping your case only to answer some of your concerns. You have...
Forum: General Electric Discussions 12-11-2015, 08:47 PM
Replies: 38
Views: 1,298
Posted By dereckbc
Hey girl give yourself a pat on the back. It was...

Hey girl give yourself a pat on the back. It was your response that led me to the solution. Although it was not the incidence angle, it make me look closely because the Horz Stab was the only thing I...
Forum: General Electric Discussions 09-16-2015, 06:48 PM
Replies: 14
Views: 728
Posted By dereckbc
great plane from what I can tell. Well...

great plane from what I can tell. Well engineered, very professional. Until you get to the website and it looks like a 5th grader put it together.

Reminds me of a school project in Social...
Forum: General Electric Discussions 03-17-2015, 11:50 PM
Replies: 22
Views: 785
Posted By dereckbc
You can especially if you do not like the smaller...

You can especially if you do not like the smaller battery and looking to get it replaced at your expense.
Forum: Electric Ducted Fan Jets 02-17-2015, 12:27 AM
Replies: 39
Views: 2,751
Posted By dereckbc
The scale just changes and means you need a real...

The scale just changes and means you need a real accurate DMM that can measure very small voltages accurately. You are getting into Fluke meters and away from Harbor Fright, Craftsman, and Chi-Com...
Forum: Electric Ducted Fan Jets 02-16-2015, 08:07 PM
Replies: 39
Views: 2,751
Posted By dereckbc
Hall effect Transducers are good when operating...

Hall effect Transducers are good when operating at full scale, but not so much on say 10 amps on a 100 amp scale. Close enough for what most want to know, but if precision is desired and within...
Forum: Electric Ducted Fan Jets 02-16-2015, 08:04 PM
Replies: 39
Views: 2,751
Posted By dereckbc
A Shunt is what is built into a watt meter or can...

A Shunt is what is built into a watt meter or can be external.

A Shunt is nothing more than a precision high power resistor, that develops 50 millivolts at full scale. For example a 50 amp shunt...
Forum: Batteries & Chargers 12-14-2014, 04:34 PM
Replies: 65
Views: 3,533
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, 08:11 PM
Replies: 65
Views: 3,533
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, 05:38 AM
Replies: 36
Views: 1,581
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, 09:07 PM
Replies: 12
Views: 1,111
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, 12:31 AM
Replies: 36
Views: 1,581
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, 08:49 PM
Replies: 36
Views: 1,581
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, 10:16 PM
Replies: 2
Views: 721
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...
Showing results 1 to 30 of 35

 
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