RunRyder RC
WATCH
 7 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 9244 views POST REPLY
HomeAircraftHelicopter
e-
Mikado
Other › L700 (L600SE): Safe to say it can't get bigger than this
03-10-2010 03:04 PM  8 years agoPost 21
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

I fly this with Jive 80HV, I've flown all my .90 with 80HV and never had a shutdown, IMHOP 120HV is overkill for most of us unless you have some real high ambient temps.

I just got a quick short flight today, turns out that the motor is a bit inbetween pinions compared to where I want the HS, going to try a 12T and see how flighttimes are.
Whats the advantage/reason of a short fat motor say to a taller thinner one?
One is flywheel effect, there is probably others as well.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-10-2010 03:17 PM  8 years agoPost 22
mmc205

rrElite Veteran

PA - USA

My Posts: All  Forum  Topic

i believe the larger stator will also give more instantaneous torque as well as it has a larger "lever arm" between where the magnets are being pushed to the center of the shaft. You can resolve this for a smaller diameter motor through higher ratio gearing, but i believe a smaller diameter, higher geared motor will lack the instantaneous torque and thus be less able to recover after bogging while still under load. just my 0.02

As mr mel pointed out, this will also help with flywheel effect for short collective pops, but flywheel effect can't sustain it and it takes just as much energy to get a larger can spinning up again as it does to slow it down.

Also, the closer the gearing is to 1:1, i believe there are less transmission losses (mikado's herringbone is already pretty darn efficient though)

***Logo 600 vbar***Henseleit TDR vbar***

PM  EMAIL  GALLERY  Attn:RR  Quote
03-10-2010 03:53 PM  8 years agoPost 23
lloyd

rrKey Veteran

Perth,Australia (South African)

My Posts: All  Forum  Topic

Thanks

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 11:41 AM  8 years agoPost 24
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

Got a few flights off today, here is one.

106T main, 12T pinion, 12s1p 5000 packs, 77% throttle, about 1935RPM at hover.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 12:09 PM  8 years agoPost 25
Joe90

rrApprentice

Quebec, Canada

My Posts: All  Forum  Topic

Your impressions, compared to HK4225 ?

How much pitch are you using ?

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 12:17 PM  8 years agoPost 26
Joe90

rrApprentice

Quebec, Canada

My Posts: All  Forum  Topic

Relation for torque

T = Constant x Diameter^2 x Lenght

With larger diameter you have more magnets and more lever

Without any numbers, I beleive that blades have much more flywheel effect than a larger motor diameter.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 01:02 PM  8 years agoPost 27
4cyclic

rrKey Veteran

Montreal, Can. and northern Vermont

My Posts: All  Forum  Topic

How comparable to a 4035-500, more average draw than a 4035 ?

Life is meaningful flying helis.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 01:27 PM  8 years agoPost 28
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

Cant really compare to 4225 since that's for a different class of heli (running it in my L600)

But as for the HK4035-500, a bit early to tell exact numbers, but more torque at less cost (amps), meaning better performance.
Flighttime/currentdraw for the 5020 looks good, also it keeps the peaks quite low.

Pitch on my L700: Don't know, never check my degree's I tweak until It feel right, but I will check for you.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 06:01 PM  8 years agoPost 29
Joe90

rrApprentice

Quebec, Canada

My Posts: All  Forum  Topic

thanks,
just to figure out why you have such low peaks.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-12-2010 06:34 PM  8 years agoPost 30
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

I havent changed setup (pitch or headspeed) since the other motors i ran, so this motor pulls less peaks for sure, perhaps the bigger diameter is the reason.

Still, avg draw is pretty much the same as others

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-22-2010 09:21 PM  8 years agoPost 31
martn1sw

rrApprentice

Hungary

My Posts: All  Forum  Topic

Realy good ! I see my new motor . What do yo think ? The flight time horthly ?

My Galery: www.rcpilot.hu

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
03-22-2010 09:24 PM  8 years agoPost 32
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

It's too cold outside for a good "final" review really, so I will wait at least until it get's +10C until I make a final judgment.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-22-2010 09:27 PM  8 years agoPost 33
martn1sw

rrApprentice

Hungary

My Posts: All  Forum  Topic

Here is +20Celsius. Came visit my arifield this weekend

My Galery: www.rcpilot.hu

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
03-22-2010 09:36 PM  8 years agoPost 34
Mapleleafs

rrVeteran

Ontario, Canada

My Posts: All  Forum  Topic

it was 19 Celsius here in Canada a few days ago....

now its only 3 Celsius two days later....

Vbar Trex 700N, Vbar MSH Protos 500, Vbar Logo 400

PM  EMAIL  GALLERY  Attn:RR  Quote
03-22-2010 09:38 PM  8 years agoPost 35
Ronald Thomas

rrMaster

Gainesville, Fl, USA

My Posts: All  Forum  Topic

77° here

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

PM  EMAIL  GALLERY  Attn:RR  Quote
03-23-2010 10:29 AM  8 years agoPost 36
Taipan

rrElite Veteran

Sydney, Australia

My Posts: All  Forum  Topic

Biggest motor?? Nah, you can fit the 5035-500 if you want.

The 5020 looks like it has a hollow shaft? With an internal thread - what for?

MrMel, what logger are you using? That graph doesn't look like it's an EagleTree one.

PM  EMAIL  GALLERY  Attn:RR  Quote
03-23-2010 10:37 AM  8 years agoPost 37
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

Biggest motor?? Nah, you can fit the 5035-500 if you want.
Actually you cant, it wouldnt fit between the frames, you have to loosen the frame to get this inside, it's only because the hole in the sides that it fit

Hyperion E-Meter II with the Hyperion E-Meter Suite for producing graphs.

I haven't disassembled that motor, setscrew perhaps?

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-24-2010 09:16 AM  8 years agoPost 38
Joker

rrNovice

Debrecen, Hungary

My Posts: All  Forum  Topic

Hi MrMel,

It would be great ot see how it performs around 2100 HS.
Do not you want to spool it up a bit more?

Joker

PM  EMAIL  Attn:RR  Quote
03-24-2010 09:39 AM  8 years agoPost 39
MrMel

rrProfessor

Gotland

My Posts: All  Forum  Topic

Nope, then I have to change pinion, sorry.
It's at it's optimal range right now for this pinion.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

PM  EMAIL  GALLERY  Attn:RR  Quote
03-24-2010 07:04 PM  8 years agoPost 40
martn1sw

rrApprentice

Hungary

My Posts: All  Forum  Topic

MrMel !

What the diffrent power or flight time 5020-450 and 4425 limited ? Wich the better in (logo700).

Martin

My Galery: www.rcpilot.hu

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 7 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 9244 views POST REPLY
HomeAircraftHelicopter
e-
Mikado
Other › L700 (L600SE): Safe to say it can't get bigger than this
 Print TOPIC  Make Suggestion 

 22  Topic Subscribe

Saturday, August 18 - 5:13 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online