HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 03, 2005, 07:05 AM
Registered User
Colonial Heights, Virginia, USA
Joined Mar 2001
1,710 Posts
Most Powerful E-Flite 370 Size Brushless ??

Does anyone know which 370 size E-Flite Brushless motors are more powerful, efficient or better suited between the original "Park 370" Himax type compared to the latest E-Flite-Hacker E-3 series for any or same GWS type gear ratios and prop combos ??......I would like to use one of these in a new, (built lite) Goldberg Tiger 400 powered by TP 3s1p 1320 packs and am looking for best usable prop thrust to amps ratio, and hoping to keep the max amps < 12 if possible.......thanks........kw
KillerWatt is offline Find More Posts by KillerWatt
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 03, 2005, 10:01 AM
17 years on RCG!
United States, NV, Las Vegas
Joined Dec 1996
3,120 Posts
The new E-flite Hacker E-Series motors are by far the most efficient in their class (ie - Park 370, Himaxx 2015, etc). They are about the same weight as the Park 370 motors, but slightly longer. This added rotor length combined with their unique "slotted" 2 pole design allow them to deliver more torque at similar or even lower power levels than the other motors.

I use the E3-37 motor in a 6.6:1 gearbox with a 12x6 prop on 3S 1320 packs. Pulling around 12 amps max, it puts out as much power as the other motors. yet pulls 1-2 amps less to do so due to its higher efficiency. I think this motor geared 5.33:1 with a 10x4.7 prop or the like would be a good choice for your Tiger 400. If it can clear the 12x6 prop though, definitely go with that prop and 6.6:1 gearing (around 21-23 ounces of thrust).

If you want to use a "370 class" motor (including these Hackers) be sure o keep that Tiger light - under 18 ounces would be best. If it will be near that or even more, go with a Park 400 motor - the 3700kv version would be excellent geared 5.33:1 as well.

Jason Merkle
E-flite Product Manager
Horizon Hobby
http://www.horizonhobby.com
Jason M is offline Find More Posts by Jason M
RCG Plus Member
Reply With Quote
Old Jan 03, 2005, 12:21 PM
Registered User
Colonial Heights, Virginia, USA
Joined Mar 2001
1,710 Posts
Thanks, Jason, for the very usefull Hacker-E3 Series motor info and suggestions, as I have both the E3-37 and -49, Park 370-4100 and -5400kv and a Park 400-4200kv along with both 5.33 and 6.6 gearboxes.....The Tiger will weigh-in <18 oz , use whatever height landing-gear to clear 12 in props and I'm looking for "best" overall choice of these power combos to hopefully work well with the 3s1p 1320 battery pack for good "vertical" as well as decent flite duration time....Thanks again and any other suggestions are welcomed....... kw
KillerWatt is offline Find More Posts by KillerWatt
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold E-flite 370 Brushless motor Travy Aircraft - Electric - Airplanes (FS/W) 1 Jul 12, 2005 11:03 AM
E-Flite 370 Brushless 5400 ejohn Power Systems 3 Sep 26, 2004 06:21 PM
MTM 400-T brushless motor E-flite 370 brushless motor PERFORM ON GWS FORMOSA? Zachary Power Systems 0 Sep 07, 2004 11:10 PM
E-Flite 370 and 400 Brushless Specs... rc_ron Power Systems 4 Aug 17, 2004 05:56 PM
E-Flite 370-4100 Prop Size RandyT Parkflyers 1 Jul 13, 2004 05:29 PM