Need help upgrading Eflite Ulitmate 2 (EFL10850)
06-11-2019, 07:26 AM
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Need help upgrading Eflite Ulitmate 2 (EFL10850)
So I've been beating the crap out of my eflite ultimate biplane for about a year now and it is my absolute favorite airplane to go fly. I'm wanting to upgrade the powertrain but I'm a little unclear on where to start as this is the first tie I've ever tried upgrading an electric foamie. Right now I'm running all stock - 1250Kv 10 size motor, 40 amp ESC, and 2200mah 3s batteries. Do you guys have any suggestions? Can this motor handle a larger ESC and a 4s battery perhaps, or should I change the motor?
The reason for this is I've started using it as my camera rig - threaded rod where the top wing bolt snaps in and clamping it together with washers and wingnuts. It works really well and provides a very steady shot, but I want to make more power to compensate for the added weight
I'm too new on this account to post links, but if you'd like to see my captured footage from this plane, search :ONBOARD: Eflite Ultimate 2 Biplane" on Youtube. Thanks!
The reason for this is I've started using it as my camera rig - threaded rod where the top wing bolt snaps in and clamping it together with washers and wingnuts. It works really well and provides a very steady shot, but I want to make more power to compensate for the added weight
I'm too new on this account to post links, but if you'd like to see my captured footage from this plane, search :ONBOARD: Eflite Ultimate 2 Biplane" on Youtube. Thanks!
06-18-2019, 01:24 PM
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Join Date: Sep 2002
Location: Nijmegen / Nederland
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Motor can handle larger ESC, an ESC does not ´push' current through a motor.
Current is determined by voltage, Kv, prop-diameter and -pitch, not by ESC
Whether ESC and motor can handle that current without going up in smoke is a very different story.
Current is proportional to voltage² and Kv³. By going from 3s to 4s current wants to increase by factor (4/3)²= 1.7. Components usually are not chosen for such an increase. You have to prop down to decrease current.
Vriendelijke groeten
Ron
• Without a watt-meter you are in the dark ... until something starts to glow •
• e-flight calculators • watt-meters • diy motor tips&tricks • Cumulus MFC •
Current is determined by voltage, Kv, prop-diameter and -pitch, not by ESC
Whether ESC and motor can handle that current without going up in smoke is a very different story.
Current is proportional to voltage² and Kv³. By going from 3s to 4s current wants to increase by factor (4/3)²= 1.7. Components usually are not chosen for such an increase. You have to prop down to decrease current.
Vriendelijke groeten
• Without a watt-meter you are in the dark ... until something starts to glow •
• e-flight calculators • watt-meters • diy motor tips&tricks • Cumulus MFC •
