WattFlyer RC Electric Flight Forums - Discuss radio control eflight - Search Results

 
Search: Posts Made By: HugoW
Showing results 1 to 30 of 171
Search took 0.01 seconds.
Forum: Power Systems
02-03-2014, 02:09 PM
Replies: 41
Views: 6,168
Posted By HugoW

Hi Chellie, happy 2013 to you, too! (or did...

Hi Chellie,

happy 2013 to you, too! (or did I miss something?!?)

I've been working and catering after the kids (2 and 4,5 now), and rebuilding the house. And developing a new pylon racer for...
Forum: Power Systems
02-03-2014, 11:27 AM
Replies: 41
Views: 6,168
Posted By HugoW

Well, it has been a while, but the plans have...

Well, it has been a while, but the plans have changed seriously. I have scaled up to 110" span, and I have some test motors running (brushless) with Ramoser Varioprop 4-blades on, 6" diameter. Scale,...
Forum: Power Systems
10-24-2013, 04:08 PM
Replies: 41
Views: 6,168
Posted By HugoW

True, I might look for a similar motor, of just...

True, I might look for a similar motor, of just throw in some new (non-China) bearings.



One of your links lets me calculate 26 oz/sq.ft. That indeed is a bit much, I might set my weight target...
Forum: Power Systems
10-18-2013, 09:39 PM
Replies: 41
Views: 6,168
Posted By HugoW

http://www.hobbyking.com/hobbyking/store/__5353__F...

http://www.hobbyking.com/hobbyking/store/__5353__FC_28_05_Brushless_Outrunner_2840Kv.html

In the review section:
6x4 14750rpm 20A 9.75V 435g 90 km/h
4.7x4.2 19700rpm 15A 10v 336g 128
4.75x4.75...
Forum: Power Systems
10-18-2013, 06:14 PM
Replies: 41
Views: 6,168
Posted By HugoW

Thanks for the advise, I'm not really afraid of...

Thanks for the advise, I'm not really afraid of such a failure. I make these together with a friend who makes them for his F5d racer as well. I haven't calculated, I fear that will far exceed your...
Forum: Power Systems
10-18-2013, 12:24 PM
Replies: 41
Views: 6,168
Posted By HugoW

Yeah, scaling down from 320 foot 11 inch to 6foot...

Yeah, scaling down from 320 foot 11 inch to 6foot has it's challenges...

Here I shifted the left wing motors, 1/2" for the first and 1" at each spacing. It does look very different from the right...
Forum: Power Systems
10-18-2013, 10:43 AM
Replies: 41
Views: 6,168
Posted By HugoW

Thanks for all the input. I will have to do some...

Thanks for all the input. I will have to do some serious thinking, as a 7" prop will simply not fit. On the inner motors, they will hit the fuselage, and between each nacelle there is only 4.7"....
Forum: Power Systems
10-17-2013, 02:08 PM
Replies: 41
Views: 6,168
Posted By HugoW

You are right, I posted the wrong kv version....

You are right, I posted the wrong kv version. Should have posted this one:
http://www.hobbyking.com/hobbyking/store/__5430__AX_2308N_1800kv_Brushless_Micro_Motor.html

Same thing, 1800kv. I think...
Forum: Power Systems
10-17-2013, 01:44 PM
Replies: 41
Views: 6,168
Posted By HugoW

Please advise on 8 motor power system...

Well, yes, I just cannot help myself...

I have started engineering on a 6 foot semi scale Hughes H-4. And I want to run all 8 motors, no fakies. I have decided to go brushless, and equip each...
Forum: Power Systems
04-10-2013, 08:04 PM
Replies: 9
Views: 1,192
Posted By HugoW

Thanks for the input. My idea is to disassemble...

Thanks for the input. My idea is to disassemble the motor, and put the can and axle unit on a modified prop balancer. If this is indeed balanced, I can add the prop and balance the combination by...
Forum: Power Systems
04-10-2013, 12:01 PM
Replies: 9
Views: 1,192
Posted By HugoW

Balancing act...

Hi,
I might be reinventing the wheel, here, if so please point me in the right direction. I have (had) many planes with brushless outrunners, with props on them (really?, yes!) and most with a...
Forum: Power Systems
03-24-2013, 08:59 PM
Replies: 2
Views: 2,304
Posted By HugoW

Help me decideon prop size, please.

Hi,
I'm putting together a no-name ARF P51, span 1600mm, AUW I'm aiming at 4kg. I will run it on a 6S pack, 80A ESC. I found an old Turnigy C5065-400 in the workshop, which I think is the one to...
Forum: Power Systems
02-26-2013, 03:53 PM
Replies: 28
Views: 2,949
Posted By HugoW

That AC/DC comparisson does make sense, thank...

That AC/DC comparisson does make sense, thank you. BTW, adding 6 inches won't nearly get the ESCs in the wing! This fuse will be about 1.900mm / 75" long!

I'm making a test set-up with the motor...
Forum: Power Systems
02-25-2013, 06:18 PM
Replies: 28
Views: 2,949
Posted By HugoW

Well, that is exactly what I'm trying to achieve,...

Well, that is exactly what I'm trying to achieve, here. One main battery in the fuse, 8 separate (one in each nacelle), and all of them parallel. So the lot should run empty all at the same time. If...
Forum: Power Systems
02-25-2013, 12:43 PM
Replies: 28
Views: 2,949
Posted By HugoW

How about this for a power set-up: Each...

How about this for a power set-up:

Each motor and ESC their own very small pack, 3S500mAh, in the nacelle. This pack will not be suffcient to fly on, but to suppress the problems with long leads....
Forum: Power Systems
02-08-2013, 02:54 PM
Replies: 28
Views: 2,949
Posted By HugoW

Wow, nice! Is that an Ivan Short Solent? Great...

Wow, nice! Is that an Ivan Short Solent? Great looking plane, just add some detail decoration. BTW, what size / type motor and prop are you running?

The H4 has a relatively long fuse, I have no...
Forum: Power Systems
02-07-2013, 06:08 PM
Replies: 28
Views: 2,949
Posted By HugoW

Yes, that it a valid point. The way I hope to...

Yes, that it a valid point. The way I hope to catch that is two fold:
Always fly within safe timing, so never over 50% capacity.
I have designed a piece of electronics to intercept the throttle...
Forum: Power Systems
02-07-2013, 03:51 PM
Replies: 28
Views: 2,949
Posted By HugoW

Thanks for all the input. The plane will be 3...

Thanks for all the input. The plane will be 3 meters span and 1,8 meters long, but in the Ivan Pettigrew style. I'm aiming for 5kg AUW, which is very light.

Some choices made:
1) Brushless....
Forum: Power Systems
02-04-2013, 09:37 AM
Replies: 28
Views: 2,949
Posted By HugoW

8 motor power system, any suggestions?

Hi,

I'm very slowly designing / preparing plans for a Hughes H4 Hercules, and I really want all 8 motors to turn a 4-blade props. Sizing is an issue I'll deal with later, but first how to set-up /...
Forum: Power Systems
08-10-2012, 12:50 PM
Replies: 5
Views: 2,023
Posted By HugoW

Well, the problem has solved itself, sort-of. I...

Well, the problem has solved itself, sort-of. I read in a dedicated EF1 topic the Turnigy actually isn't up to the job. Fun motor for leisure flight, but not for racing. They overheat and burn out....
Forum: Power Systems
08-09-2012, 02:19 PM
Replies: 5
Views: 2,023
Posted By HugoW

Well, all may be obvious, but the air flow...

Well, all may be obvious, but the air flow doesn't reach the motor when I increase the openings in the cowl. Even without cowl, the spinner blocks air going to the motor. And air passing over the...
Forum: Power Systems
08-09-2012, 11:10 AM
Replies: 5
Views: 2,023
Posted By HugoW

Cooling EF-1 motor?

Hi,

I fly a RBC kits Polecat in EF1 competition, but it's not going to plan. The plane is up and flying, finally trimmed out, should be OK. The motor is a Turnigy AerodriveXp 25 SK Series 35-42...
02-29-2012, 03:25 PM
Replies: 0
Views: 1,209
Posted By HugoW

Looking for very light set-up for glider.

Hi,

I know this is not a glider section, but you guys do sure build light set-ups here!

I'd like to build the 900mm span version of this plane:...
Forum: Power Systems
10-24-2011, 08:01 PM
Replies: 6
Views: 1,305
Posted By HugoW

Re: Looking for rpm programmable ESC

Thanks Chellie. Unfortunately, all those have no programmable top rpm number. I'll keep searching.

Cheers,

Hugo

Sent from my HTC Desire using Tapatalk
Forum: Power Systems
10-20-2011, 09:57 AM
Replies: 6
Views: 1,305
Posted By HugoW

Re: Looking for rpm programmable ESC

Oh, it needs to be 70 amps or more, I now use a 100 amp cheap Himodel esc. I found Castle Creations to be programmable, but expensive and out of stock everywhere.

Hugo

Sent from my HTC Desire...
Forum: Power Systems
10-18-2011, 11:13 AM
Replies: 6
Views: 1,305
Posted By HugoW

Looking for rpm programmable ESC

Hi

To pilot race in the eq500 class, I need an esc with fixed top rpm. I would like to be able to program the esc linear to half throttle, and top rpm for the second half. So both rpm and curve...
08-09-2011, 03:39 PM
Replies: 0
Views: 1,093
Posted By HugoW

Electric Quickie 500; competition is alive in the Netherlands

Hi,

as I am in the progress of designing and building an EQ500, I looked around the forum here and found amazingly little info. I did find this:...
11-02-2010, 04:11 PM
Replies: 9
Views: 1,646
Posted By HugoW

Because I rarely heat my house to 30 - 35C (86...

Because I rarely heat my house to 30 - 35C (86 - 95F). And for a full days racing, I will need to recharge on the field (can be 10 packs, including training and finals)(Oh, what do I say, Ill...
11-02-2010, 04:00 PM
Replies: 9
Views: 1,646
Posted By HugoW

How do I pre-heat LiPos for racing?

Hi,

Im thinking of joining the Dutch E-quickie 500 racing league. This is a highly competative league like the Q500, but with e-power. Ive been reading a lot about it and everything is very much...
10-17-2010, 09:46 PM
Replies: 7
Views: 3,125
Posted By HugoW

Bummer, despite promisses by e-mail, the order...

Bummer, despite promisses by e-mail, the order was rejected since they cannot ship in time, to get it to me before I leave the US again and head for home.

Cheers,

Hugo
Showing results 1 to 30 of 171
 


 
Forum Jump

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 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 0.07444 seconds with 7 queries