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Search: Posts Made By: Dayaks
Showing results 1 to 25 of 31
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Forum: Electric Training
05-09-2013, 02:59 AM
Replies: 8
Views: 1,349
Posted By Dayaks

RE: Power generator

Most likely - but what kind of charger do you have? If it's 600 watts or less I don't see why it shouldn't work.

Your lawn mower battery could probably put out around 50 watts continuous.
Forum: Electric Pattern Aircraft
04-23-2013, 07:21 AM
Replies: 6
Views: 1,277
Posted By Dayaks

RE: New Li-Ion Technology

Energy density still low compared to gas. We don't need higher power density, we need more energy density.
Forum: Brushed/Brushless motors, speed controls, gear drives
01-31-2013, 05:52 PM
Replies: 7
Views: 851
Posted By Dayaks

RE: Testing a Motor

If you have a multimeter take the resistance between all of the wires, in all combinations possible (two at a time). They should all read the same resistance. If any combination is an open circuit...
Forum: Brushed/Brushless motors, speed controls, gear drives
01-31-2013, 05:17 PM
Replies: 7
Views: 851
Posted By Dayaks

RE: Testing a Motor

Is it brushed or brushless?
Forum: RC Car General Discussions
01-14-2013, 05:08 PM
Replies: 205
Views: 18,641
Posted By Dayaks

RE: Nitro vs Electric

Both nitro and electric are powerful enough IMO.

What REALLY matters is what you ENJOY more. They are toys!

That said I like running electric, but watching nitro.. Not because I am lazy...
Forum: Brushed/Brushless motors, speed controls, gear drives
01-12-2013, 03:57 AM
Replies: 1
Views: 544
Posted By Dayaks

RE: Wire Length

Shorter means less power lost to heat... More stable power to the components. Less wire, less resistance. So if you don't need all the wire and are capable of putting on new connectors then have at...
Forum: Electric RC Jets
01-10-2013, 04:51 AM
Replies: 9
Views: 1,533
Posted By Dayaks

RE: 20 to 25 CELL DUCTED FAN SETUP?

My skin resistance is only 10k ohms dry and 500 ohms wet... Not 500k ohms as the one post suggests. 500k might be lightly brushing a wire, when I measured 10k ohms I was gripping it like I'd work on...
Forum: RC Car General Discussions
01-08-2013, 05:37 PM
Replies: 227
Views: 13,618
Posted By Dayaks

RE: RC Pet Peeves

When people judge what you spend your money on. I've seen it on the forums and from family. In laws spend money on smokes and gambling, but it's terrible if the son and law spends 2% of his income...
Forum: Electric RC Jets
01-08-2013, 07:05 AM
Replies: 9
Views: 1,533
Posted By Dayaks

RE: 20 to 25 CELL DUCTED FAN SETUP?

I imagine you'd have to jump to commercial voltages (think VFDs) which is around 400 volts. The device you want is quite dangerous, both the voltage and EDF itself... I'd be surprised to see a...
Forum: Electric RC Jets
12-29-2012, 07:15 AM
Replies: 9
Views: 1,948
Posted By Dayaks

RE: Any fan powerful enough for this plane?

How loud is the DS-94-HST? I am very close to purchasing one but am a bit concerned about sound levels.
Forum: Electric RC Jets
12-21-2012, 06:59 PM
Replies: 5
Views: 2,520
Posted By Dayaks

RE: Skymaster F-15 EDF turbine jet

Measures that help besides posted above:

kW used per static thrust
EDF system weight
EDF motor (included?)
Cost
Forum: Electric RC Jets
12-19-2012, 03:30 PM
Replies: 9
Views: 1,948
Posted By Dayaks

RE: Any fan powerful enough for this plane?

I'm no expert in large EDFs, but I would definitely at least check out the DS-94-HST.
Forum: RC Car General Discussions
12-13-2012, 05:25 PM
Replies: 49
Views: 3,196
Posted By Dayaks

RE: Looking for a good rc for my son

Traxxas Stampede. I'd love to suggest the summit but this is more in your price range. Electric not nitro though.

http://traxxas.com/products/models/electric/3605stampede
Forum: Beginners
12-13-2012, 06:30 AM
Replies: 13
Views: 972
Posted By Dayaks

RE: dumb me/electric

It should take a bit over an hour if you're charging at 1C and the battery was depleted. You're putting .6 amps into a battery with ~ .6 ah (amp hours) of capacity.
Forum: Beginners
12-08-2012, 02:17 PM
Replies: 9
Views: 718
Posted By Dayaks

RE: Need info on a replacement motor

Instead of a current measurement, you could always use the good old finger test - is the motor hot? If it's only a little warm it can likely handle a bigger prop.

The hacker has a lower KV. ...
Forum: Beginners
12-08-2012, 12:42 PM
Replies: 9
Views: 718
Posted By Dayaks

RE: Need info on a replacement motor

Would need to know prop size and lipo setup (2S or 3S) like guver hit on.

Conversely you could use "ecalc". Just google "ecalc prop". It's a nifty calculator where you can put in your...
Forum: RC Jets
12-05-2012, 06:35 PM
Replies: 198
Views: 21,173
Posted By Dayaks

RE: The politics of jet flying

I agree with Matt. Attacking likely a majority of the club is a terrible idea. The posts about being friendly and respectful seem right on. If people seem interested ask if they want to help out,...
Forum: Beginners
12-03-2012, 11:11 AM
Replies: 4
Views: 1,028
Posted By Dayaks

RE: Are there any good props made in the US?

I did find this thread with a lot of US companies, another member noted there are some errors in the list, but a good place to start!:

...
Forum: Beginners
12-03-2012, 04:20 AM
Replies: 4
Views: 1,028
Posted By Dayaks

Are there any good props made in the US?

I plan to do some testing on ACP props and after I get some data I plan to get something "sexy" (and expensive) like a Mejzlik.

All the good props seem to be made in Europe. Are there any good...
Forum: Beginners
12-02-2012, 08:04 AM
Replies: 20
Views: 3,112
Posted By Dayaks

RE: LiPo battery low voltage

I've heard damaged packs have a higher resistance. Lowers your max discharge and heat dissipated is based on i^2*r. I haven't personally messed around with over discharged packs but be careful! I'd...
Forum: Electric General Discussion
11-30-2012, 06:55 AM
Replies: 14
Views: 1,439
Posted By Dayaks

RE: Hobby King yuck

ATV

Yeah, I am lucky that my LHS has prices similar to what I find online, and it's 10 minutes away. It is small, but what I love about it is it's locally owned and operated.

I...
Forum: Electric General Discussion
11-29-2012, 05:30 PM
Replies: 14
Views: 1,439
Posted By Dayaks

RE: Hobby King yuck

I have used Hobby King for lipos - but I plan to switch to thunder power. Everything else I try to get USA made or owned. ( Neumotor, CC, Traxxas, LHS, ect.) Those places have always responded...
Forum: Beginners
11-25-2012, 07:17 PM
Replies: 20
Views: 5,516
Posted By Dayaks

RE: Attaching a 10mm prop to a 8mm motor shaft.

I'll definitely post the results! I'll take a look at the Neu prop adapters. Thanks for the heads up.

I picked that motor since it had decently high watt ratings and some low KV ratings. ...
Forum: Beginners
11-25-2012, 05:09 PM
Replies: 20
Views: 5,516
Posted By Dayaks

RE: Attaching a 10mm prop to a 8mm motor shaft.

I think I found a collet that adapts to 8mm motor shaft and uses 3/8" (approx 10mm) props on tower hobbies. I plan to get around a 22" prop and meter/TC the setup in a fixture. In my eyes collets are...
Forum: Beginners
11-25-2012, 10:16 AM
Replies: 20
Views: 5,516
Posted By Dayaks

Attaching a 10mm prop to a 8mm motor shaft.

Hello,

I bought a Neumotor 1924 and most props (like a Xoar PJA prop) I am interested in are 10mm. I am at a bit of a loss of how I safely connect the prop to the motor in a way I don't get...
Showing results 1 to 25 of 31
 
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