View Full Version : RAZOR Motors explained :) well at least IMO
EricLarson
11-29-2006, 05:29 PM
Use a Duralite stepdown when using a 6V bec.
Rickster
11-29-2006, 11:46 PM
Why do you need to use a step down with a 6V BEC? The gyro and servo were designed to be used on 4Cell NiCd airborn packs which when fully charged are at 6V. I think they say not to use on 6V systems when referring to using NiCd/NiMh because 5 cell airborn packs are fully charged at 7.5V...
With a BEC keeping it constant 6V I would not worry about it myself...
Rick
OICU812
11-30-2006, 01:10 AM
You need the step down for the tr servo, the 9256 will NOT take 6V, hence the need for the stepdown as Eric stated, the gyro will be fine on 6V, but not the servo for either a 601 or even more so definetly not the 9256 which is the servo that comes with the 611 amp.
eheliflyer
11-30-2006, 01:16 AM
What do you guys think of the Plettenberg Orbit 30-12 on 10S?
misskimo
11-30-2006, 01:43 AM
hey , Rickster , yes , a 4 cell nicd pack will peak close to 6 volts at the end of a charge , one thing to look at when connection the batteries with a nicd pack , the amp box , it should tell you the running voltage, I used a 5.1 volt reg , and a 5.4 "I think" at one time with the 611, but went back to the 4 cell rx nimd pack ,
I will use something different this coming year,
Tony
Clintstone
11-30-2006, 07:11 AM
have not run the orbit, was supose to get one but it never showed up.
Rickster
11-30-2006, 12:17 PM
I run a 4cell 1500 pack on mine and charge it every 3rd flight.. Uses about 200-250Mah a flight..
Rick
EricLarson
11-30-2006, 04:28 PM
Just as Shawn said. The 9256 does not like 6V at all. You would be asking for a failure.
If you use a 5 cell pack you NEED to also use a step down. The servo is rated at 4.8V or a 4 cell pack. A fully charged 5 cell pack is VERY bad for the 9256.
Rickster
11-30-2006, 05:30 PM
Maybe I did not clarify .. I agree if you use a 4 cell NiCd (4.8V) you do not need to use a step down. If you use a 5 cell NiCd(6V) you DO need to use a step down. What I am saying though is that a fully charged 4.8V pack is right at 6V (1.5V per cell) when off the charger, and a 6V pack is at about 7.5V off the charger..
If you are running a 6V BEC are you not running the same voltage as a fully charged 4.8V flight pack??? If so then I do not understand why you need a step down..
Rick
EricLarson
11-30-2006, 06:06 PM
Check the voltage under servo load after 30 seconds or so on the 4 cell pack and it will not be anywhere close to what it is after it is off the charger.
I just read the part where it looked like you where using a 5 cell pack non-regulated.
sumonzu
11-30-2006, 11:23 PM
sumonzu
Clint is running the 45-08 geared 14.25 on 10s , 3850 TP 3700 evos , or 4600 tps or 4350 evos , I perfer TP my self, but either pack will do great ,
Blades the best , VBlades 600s , gyro , 601 or 611 is best , 401 will work ,
swash , 9252s ,
Wayne , HC couldnt thermal my Schulze out huh?
misskimo, sorry what does 45-08 stand for?...
misskimo
12-01-2006, 12:09 AM
Kontronics 45-08 brushless motor , its a 6 pole motor , KV 800
you can put alot of hours on this motor without any problems on the Razor , Clint has well over 500 flights on his . lets say 6 min average, 3000 min. Thats 50 hours :smokin: :WOW
EricLarson
12-01-2006, 09:42 AM
Also FYI I found out that the production A50 14S and 16S motors that work in the Razor have been updated from the initial run. The bearings are larger and higher quality (self lube), the fan has been changed, and internally it is setup so if there was a bearing failure there will not be a catastrophic failure.
I ran the CC110 on my Razor with the Neu and Hacker. Results where similar to my Jazz except I could tweak the settings and pull more current. I saw similar temps. The Neu this time of year is only running like 165F after a flight. In the summer during our testing it was 90 plus many days and really humid. We have setup our recommendations for worst case.
misskimo
12-04-2006, 01:51 AM
Eric , I just read back through this and see that you tried the CC 110 with the neu motor , was this the 1521 ??? 700 size ? or the 600 ? 1515 ? if the 600 , the 85 will work great and loose an oz off the heli too.
same temps , and sounds like more power in what you are saying !!
Also FYI I found out that the production A50 14S and 16S motors that work in the Razor have been updated from the initial run. The bearings are larger and higher quality (self lube), the fan has been changed, and internally it is setup so if there was a bearing failure there will not be a catastrophic failure.
I ran the CC110 on my Razor with the Neu and Hacker. Results where similar to my Jazz except I could tweak the settings and pull more current. I saw similar temps. The Neu this time of year is only running like 165F after a flight. In the summer during our testing it was 90 plus many days and really humid. We have setup our recommendations for worst case.
EricLarson
12-04-2006, 06:14 PM
Seemed the same to me with the same flight times. If I set it up more agressive I loose flight time but can get more power. I ran the 110 on the 32-3, 1515, 1521, and Hacker A50. It all depends on the settings and how aggressive a person wants to get. Temps and power levels seemed similar to me from the Jazz. I really would not worry about 1oz as it is .6% of gross weight so that would cost about 6-10 watts or so.
Clintstone
12-04-2006, 07:15 PM
I am seeing more power @ 9.6 to 1 but I am more efficient at 10 to 1 by atleast 1 min and alot less current draw, my translation on that is that it is easier on 10 to 1 and I have plenty of usable power. I can change ratios in 5 min. and I dont have to change anything in the radio. Pretty cool..............
buster1
12-05-2006, 01:52 PM
guys, is the Hacker motor available yet - the one Eric is using in the Razor - and if so, where can I get one. I think I am going to go with this motor,
Thanks,
Jeff
guys, is the Hacker motor available yet - the one Eric is using in the Razor - and if so, where can I get one. I think I am going to go with this motor,
Thanks,
Jeff
Yes , you can get it from www.espritmodel.com
epc2.
buster1
12-05-2006, 04:33 PM
Whats the difference between the 14S and 16S - I see you are using 14S, but min air site also lists a 16S - I don't no much about electric motors, thanks,
Jeff
Clintstone
12-05-2006, 06:02 PM
Miniature has the motors and the ESC. Check on a combo as Tim is putting together package deals.
Whats the difference between the 14S and 16S - I see you are using 14S, but min air site also lists a 16S - I don't no much about electric motors, thanks,
Jeff
16s Kv=490 , 14s=550
epc2.
EricLarson
12-06-2006, 08:39 PM
14 = slightly more power, but slightly less run time. Higher KV motors "generally" are a bit more powerful.
buster1
12-06-2006, 11:11 PM
cool - so, what does your performance look like now with the Hacker 14S and 4350 packs - its it a strong 60 nitro or closer to 90 nitro power to weight ratio.
Thanks,
Jeff
EricLarson
12-07-2006, 09:17 AM
I would say YS80 power or so. Not as strong as my .91 but close. The Neu is right on par with the .91. I talked to Bert the other day and the 1st time he felt his .91 had more power was now in the winter when lipo are cold and his nitro motor is really producing power. Temp was like 45F
Eric,
Christmas is here what's the latest info on availability , Can we have our Razors under the tree :mrgreen:
epc2.