Goedendag ;-) If you find you are getting too many messages, you can also read them on the homepage at http://www.yahoogroups.com/group/lrk-torquemax/ In order...
lrk-torquemax@yahoogr...
May 1, 2005 10:12 am
8558
CONTENTS ... * LIST ARCHIVE & SEARCH * MESSAGE DELIVERY OPTIONS * VIA THE WEB * POSTING TO THIS GROUP * CHANGING YOUR SUBSCRIPTION STATUS * RELATED GROUPS *...
lrk-torquemax@yahoogr...
May 1, 2005 10:12 am
8559
Goedendag, A rewound cd-rom motor in a F86-Sabre jet: www.rcgroups.com/forums/showthread.php?t=353498 Vriendelijke groeten ;-) Ron van Sommeren near Nijmegen,...
Does anyone have experience in scaling up the model aircraft lrk outrunner style motors? I'm looking at the 100KW range, but would certainly be interested to...
Hi Ben: You need to check out electric busses. Some use inverted electric motors mounted in the wheels. They are not LRK, but are high torque and slightly ...
Goedendag Ben, www.torcman.com/index_e.htm has a +3kW lrk outrunner www.high-torque.com and www.flyware.de have +1kW outrunners. Building information: ...
Perhaps this has been discussed before, but has anyone tried running 2 or more identical motors from the same speed control? I have heard rumours that it works...
It certainly works, Kontronic even have a recommended set on their model
page:
http://www.kontronik.com/Neuheiten2005modelle.htm
Not all motors and controllers...
... running 2 ... In "Photos", Arance, you can see two home made 220 watts motors running with one Castle 60 controller. In a test they started fine 99 times...
I agree with JJ that some ESC's work and some are not reliable. In my experience ones that are new or can be upgraded to latest software work and some older...
I am running two Razor 24-3650s off of one Jazz 40-6-18. They are installed in wattage fan units on my Wattage Viking. I have never had a problem getting them...
10kw is nothing... My ~100Kw car engine dissipates about 75Kw of heat quite effectivly :) Water or forced air cooling is probably going to be necessary...
10kw is nothing? Hm, but the speed control? Seemest you have no problem with electronics ;-) instead of me - up till now I cant try up than 3kw. Mostly because...
... Ben, I would be very careful in using the formula for such large motors from the least square analysis that I did on LRK motors for model aircraft use. ...
Hello I have (at last !!) one precise measurement to compare Delta and Star on the same stator/rotor in good conditions: Kit Armstrong Stator 9 slots 20 mm...
... What method did you use to measure the velocity constant? The back-EMF of a motor is never exactly trapezoidal, and furthermore the back-EMF waveform...
Oh I get it :) That's why I was looking for more evidence on feasability, instead of believing the formula. It appears from the little extra data that we've...
hi,
I think that the cost of project does not matter (I mean then you have all the rest what you need
for life, of course). Some University spends $5k to build...
Hello Ryan I used the formula Kv = rpm0 / ( V - Rm Io) Rm is different Delta(RmD) compared to Star(RmY) and both values were measured accurately The ratio...
... Looks good to me. ... When you say "correct" do you mean the ratio is 3? ... This method allows you to see the back-EMF waveform with an oscilloscope but...
Hello Ryan Yes the ratio RmY/RmD is close to 3 (with only 3.2 percent error due to low resistance measurements probably) Any other comparisons between Kv for...
OSMC looks pretty decent to me... Using their reccomended fet's it'll do about 12Kw contiuous (150A at 80V), and 24Kw peak (limited by the to220 packaged fets...
check that out, they are allready running comercialy http://www.lange-flugzeugbau.com/english Antares The Electric Motorglider The brand new developed and...
Goedendag, A new kit from ACW: http://www.aircraft-world.com/shopexd.asp?id=3302 Vriendelijke groeten ;) Ron van Sommeren near Nijmegen, the Netherlands...
Hi My name is Johan and I live in Sweden. I plan to build a brushless motor from scratch to use in a "robotwars robot". It will not drive a propeller as you...
... Hi Johan, I really like the idea of these large low RPM motors. Have you tried simulating your design in FEMM or some other similar software? This will ...
Hi have a look on the generators in cars or for bigger size in trucks.. they are high slots-numbered and massiv iron up to 200mm diametre. out of a renault...
Goedendag, A 85000 rpm tripple cd-rom motor: http://www.rcgroups.com/forums/showthread.php?t=348355 Vriendelijke groeten ;) Ron van Sommeren near Nijmegen, the...
Hello I have been researching the internet for motor and Generator design. I am looking to build a UAV for specific Law Enforcement purposes. I am a cop by...
Who has access to: Novel axial flux machine for aircraft drive: design and modeling http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1042438 Regards, ...
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