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View Full Version : Ralph O.'s latest bomb


ron_van_sommeren
05-13-2008, 12:36 AM
"... at the beginning of climbing I found 153A = about 3000watts.after 10 sec and under full throttle only 1900 watts are needed to hold the vertically speed of 50m/s.after motor cut off climbing is more than 100m! ..."

See
a hot direct drive outrunner (http://www.rcgroups.com/forums/showthread.php?t=863071)
adLRK winding diagram (http://www.rcgroups.com/forums/showthread.php?t=811141)

Other bombs by Ralph:
powercroco speedcroco18-8 (http://www.powercroco.de/crocospeed18N8P5x106.html)
310km/h
powercroco speedcupcroco (http://www.powercroco.de/crocospeed5x118dachau.html)
370km/h
powercroco speedcroco5x1,18YY (http://www.powercroco.de/18N12P5x118YYspeed.html)

(use e.g. http://babelfish.altavista.com for automatic translation of the last 3 links)


Vriendelijke groeten ;) Ron van Sommeren
• int. electric fly-in (http://home.hetnet.nl/%7Eronvans/), Nijmegen, the Netherlands
• brushless motor building tips & tricks (http://www.rcgroups.com/forums/showthread.php?t=240993)
• diy brushless motor (http://www.yahoogroups.com/group/lrk-torquemax) discussion group
• Drive Calculator (http://www.yahoogroups.com/group/D-calc/) download & discussion group


http://www.powercroco.de/%B0forum/260308-2.jpg

http://www.powercroco.de/%B0forum/080508-3.jpg

......................

ron_van_sommeren
05-14-2008, 10:31 PM
I forgot to mention it's an outrunner :) (as usual for Ralph, he only builds outrunners: www.powercroco.de)