The Emax GT2820/07 is a 4.9 ounce, 850kv, 570 watt outrunner brushless motor. It's a good choice for sport planes weighing 35 to 65 ounces, and 3D models weighing 30 to 50 ounces. 

We suggest using a 3 cell Lipo battery that is rated for about a 60 amp continuous discharge (or more), such as an 11.1v 2200 30C to 11.1v 4200 50C. Good 4 cell Lipo choices would be 14.8v 2200 50C to 14.8v 3300 50C.

We recommend using a 50A to 70A Electronic Speed Control (ESC) with this motor.

The GT2820/07 comes with 4mm male connectors installed, and female connectors are included for your ESC. 

MOUNTING OPTIONS: The GT2820/07 can be mounted in front of a firewall using the included X mount and rotor end prop adapter. It can also be mounted behind a firewall, using the included 5mm prop adapter to mount a prop on the motor shaft. 

Propeller Test Data for the Emax GT2820/07 Motor:

Battery Size Propeller Size Thrust (oz) Amps  Watts 
3-Cell 11.1v APC 14 x 8.5E 73 oz. 37 amps 405 watts 
3-Cell 11.1v APC 14 x 7E 69 oz.  33 amps362 watts
3-Cell 11.1v APC 13 x 6.5E 62 oz. 27 amps314 watts
3-Cell 11.1v APC 13 x 4E 57 oz. 21 amps241 watts
3-Cell 11.1v APC 12 x 6E 53 oz. 22 amps260 watts
3-Cell 11.1v APC 12 x 4.7SF  62 oz. 28 amps312 watts
3-Cell 11.1v APC 12 x 3.8SF 62 oz.  28 amps316 watts
4-Cell 11.1vAPC 13 x 4E 90 oz. 38 amps560 watts
4-Cell 11.1vAPC 12 x 6E 84 oz  35 amps517 watts
4-Cell 11.1vAPC 11 x 8.5E 72 oz. 36 amps543 watts
4-Cell 11.1vAPC 11 x 7E 72 oz. 31 amps471 watts
4-Cell 11.1vAPC 11 x 5.5E 68 oz.  27 amps416 watts

Please be aware that the battery used can make a tremendous amount of difference in the performance of brushless motors. The above data was obtained using batteries in good condition that were fully charged. Thrust and amp draw may be less with the use of batteries rated at lower amp output, and slightly more using batteries rated for higher amp output. Other factors, such as ESC timing and variations in actual motor KV can affect the performance of brushless motors as well. We recommend the use of a Watt Meter to test the current draw of your particular power system, especially if you plan to use a prop that pushes the motor near it's maximum amp rating

Write a review

Please login or register to review

EMAX - GT2820-07 850kv Brushless Motor

  • Product Code: EMAX - GT2820-07 850kv Brushless Motor
  • Availability: In Stock
  • CMC Product ID: 1905
  • R636.00

  • Ex Tax: R553.04

Related Products

Skywalker 60 Amp ESC

Skywalker 60 Amp ESC

1 Specification1.1 Output: Continuous 60A, Burst 80A up to 10 seconds.1.2 Input Voltage: 2-6S Lip..

R636.00 Ex Tax: R553.04

Skywalker 40 Amp ESC

Skywalker 40 Amp ESC

Model: Skywalker-40AContinuous Current: 40ABurst Current (>10s): 55ABEC Mode: LinearBEC Output: 5..

R363.00 Ex Tax: R315.65

Skywalker 30 Amp ESC

Skywalker 30 Amp ESC

Model: Skywalker-30AOutput power: constant current 30A, 40A Burst (not more than 10 seconds)Power in..

R314.00 Ex Tax: R273.04

Skywalker 80 Amp ESC

Skywalker 80 Amp ESC

1 Specification1.1 Output: Continuous 80A, Burst 100A up to 10 seconds.1.2 Input Voltage: 2-6S Lipo,..

R749.00 Ex Tax: R651.30

Skywalker 20 Amp ESC

Skywalker 20 Amp ESC

1 SpecificationOutput: Continuous 20A, Burst 25A up to 10 Secs.Input Voltage: 2-3S lipo BEC: Li..

R298.00 Ex Tax: R259.13

HobbyWing FLYFUN 160A HV OPTO V5 Brushless ESC

HobbyWing FLYFUN 160A HV OPTO V5 Brushless ESC

160A HV OPTO V5130A HV OPTO V5p/n3020165030201500Cont./Peak Current160A/200A130A..

R3,462.00 Ex Tax: R3,010.43

Hobbywing 5V 3A UBEC Step-Down Converter

Hobbywing 5V 3A UBEC Step-Down Converter

UBEC's (Universal Battery Eliminator Circuit's) are simply DC to DC step down voltage regulator..

R189.00 Ex Tax: R164.35

Hobbywing 8A - 15A 5V/6V UBEC Voltage Regulator

Hobbywing 8A - 15A 5V/6V UBEC Voltage Regulator

HOBBYWING UBEC 8AThis UBEC is an external switching mode DC-DC regulator; it draws DC voltage from 2..

R427.00 Ex Tax: R371.30

Hobbywing UBEC 10A (2-6S)

Hobbywing UBEC 10A (2-6S)

The UBEC is an external switching mode DC-DC regulator; it draws the DC voltage from 2-6S Lipo batt..

R779.00 Ex Tax: R677.39

Lipo Regulator - 5amp 6Volt

Lipo Regulator - 5amp 6Volt

Lipo Regulator - 5amp 6VoltThis great little unit allows the use of any battery from 7 to 25 volts t..

R167.00 Ex Tax: R145.22

E-flight 80-Amp Pro Switch-Mode BEC Brushless ESC

E-flight 80-Amp Pro Switch-Mode BEC Brushless ESC

Key FeaturesUp to 80 amps continuous current with proper air flow and 100 amps burst current (15 sec..

R2,484.00 Ex Tax: R2,160.00

FLYFUN HOBBYWING 120A V5 ESC

FLYFUN HOBBYWING 120A V5 ESC

Hobbywing has released FLYFUN 120A V5 30201400 under Aircraft ESC / BEC Motor / ESC / Cooling Fan ca..

R1,771.00 Ex Tax: R1,540.00

Skywalker 6 Amp ESC

Skywalker 6 Amp ESC

DescriptionHobbywing Skywalker 6A ESC - Speed ControllerFeatures:Safety arming feature: Regardless t..

R194.00 Ex Tax: R168.70

HobbyWing FLYFUN 120A 3-8S V5 Brushless ESC

HobbyWing FLYFUN 120A 3-8S V5 Brushless ESC

FEATURES : ESC programmable through Transmitter and LED program card (purchase separately)DEO T..

R1,771.00 Ex Tax: R1,540.00

Tags: Electric, motor, emax

Latest

ARF - Seagull - CHEROKEE SIZE 46​  SEA 121

ARF - Seagull - CHEROKEE SIZE 46​ SEA 121

Wingspan……………....…....…59.8 in…………..152cm.Wing area………………...........599.9sq.in….…..38.7sq.dm.Approxi..

R3,689.00 Ex Tax: R3,207.83

CYS - S8218 40Kg HV digital metal gear servo

CYS - S8218 40Kg HV digital metal gear servo

DescriptionItem NO.: CYS-S8218 40kg digital servo Description :  40Kg high torque digital ..

R829.00 Ex Tax: R720.87

CYS - S0250 25Kg digital waterproof servo

CYS - S0250 25Kg digital waterproof servo

Item NO.: CYS-S0250 Digital servo Description : 25Kg Digital waterproof servo for 1/10 scale rc..

R399.00 Ex Tax: R346.96

Dualsky - GA2000, 400 KV 28-pole to 2200W (20ccm) brushless motor

Dualsky - GA2000, 400 KV 28-pole to 2200W (20ccm) brushless motor

DUALSKY BL motors are precision-engineered masterpieces, are manufactured with high precision, and h..

R3,542.00 Ex Tax: R3,080.00

ARF - Seagull - PT-19 Fairchild 120 SEA136

ARF - Seagull - PT-19 Fairchild 120 SEA136

Wingspan - 79.5ins (202cm)Wing area - 965.7sq.ins (62.3dm)Suits - 90-120 2-Stroke (120 4-stroke)Fact..

R6,024.00 Ex Tax: R5,238.26

ARF - T45 EPO jet TW750-1 2.4G 4channel

ARF - T45 EPO jet TW750-1 2.4G 4channel

(Plug and Play, does not include battery and radio)SpecificationWingspan:780mm (30.7 in)Overall Leng..

R2,399.00 Ex Tax: R2,086.09

RCEXL CM8 module single - 120 degree Cap

RCEXL CM8 module single - 120 degree Cap

RCEXL CM8 (1/4 32) ignition module for single cylinder gas engines. the CM8 spark plugs are a dir..

R1,291.00 Ex Tax: R1,122.61

Toys - MN Models MN82 RC Crawler LC79 Toyota Landcruiser RTR

Toys - MN Models MN82 RC Crawler LC79 Toyota Landcruiser RTR

Introducing the MN82Powerful and versatile remote control off-road pickup that is perfect for hobbyi..

R1,349.00 Ex Tax: R1,173.04

Toys - MN MODEL D90 1/12 4X4 4WD RTR CRAWLER - RED

Toys - MN MODEL D90 1/12 4X4 4WD RTR CRAWLER - RED

The MN-D90 Car is special designed for tough environments and any rugged road, which is robust, dura..

R918.00 Ex Tax: R798.26

Tower Pro 4.8V-6V 7 LED Receiver Battery Voltage Indicator

Tower Pro 4.8V-6V 7 LED Receiver Battery Voltage Indicator

DescriptionFeature:100% Brand New Pack 4.8V-6V Volt Watch On-Board Battery Monitor Have SW..

R139.00 Ex Tax: R120.87

ARF - Seagull - Super Chipmunk 46-55 ARF SEA120

ARF - Seagull - Super Chipmunk 46-55 ARF SEA120

Wingspan - 63.0ins (160cm)Wing area - 643.3sq.ins (41.5dm)Suits - 60 2-Stroke (70 4-stroke) or elect..

R4,261.00 Ex Tax: R3,705.22

ARF - Dynam PBY Catalina Blue 1470mm (57") Wingspan - PNP

ARF - Dynam PBY Catalina Blue 1470mm (57") Wingspan - PNP

PBY Catalina Blue 1470mm PNP DY8943B The Consolidated PBY Catalina was an American flying boat,..

R4,660.00 Ex Tax: R4,052.17

ARF - Dynam Dhc-2 Beaver 1500Mm Stol Aircraft W/O Tx/Rx/Batt

ARF - Dynam Dhc-2 Beaver 1500Mm Stol Aircraft W/O Tx/Rx/Batt

DescriptionDYNAM DHC-2 BEAVER 1500MM STOL AIRCRAFT W/O TX/RX/BATTComes with Floats and a Conventiona..

R5,151.00 Ex Tax: R4,479.13

ARF - Black horse - Yak 55M  30cc  BH111

ARF - Black horse - Yak 55M  30cc  BH111

..

R8,736.00 Ex Tax: R7,596.52

ARF - Black horse - MonSun 33cc  BH122

ARF - Black horse - MonSun 33cc BH122

..

R9,399.00 Ex Tax: R8,173.04

ARF - Black horse - SUPER DECATHLON BH150

ARF - Black horse - SUPER DECATHLON BH150

SPECIFICATION:-Wingspan:2,450mm 96.46in.-Length: 1,750mm 68.90in.-Weight: 7.5kg 16.50lbs.-Wingarea:9..

R11,760.00 Ex Tax: R10,226.09

ARF - Black horse - Piper Cub  120  BH58

ARF - Black horse - Piper Cub 120 BH58

..

R7,648.00 Ex Tax: R6,650.43

ARF - Black horse - Decathlon  EP  BH53

ARF - Black horse - Decathlon EP BH53

..

R3,573.00 Ex Tax: R3,106.96

ARF - Jet Pusher EPO PNP Funjet

ARF - Jet Pusher EPO PNP Funjet

This little Funjet will give you hours of pleasure and exhilarating fun. Just add your receiver and ..

R2,051.00 Ex Tax: R1,783.48

ARF - Black horse - Chipmunk  60 size  BH44

ARF - Black horse - Chipmunk 60 size BH44

..

R4,710.00 Ex Tax: R4,095.65

ARF - Black horse - Liberty trainer BH37

ARF - Black horse - Liberty trainer BH37

..

R3,744.00 Ex Tax: R3,255.65

ARF - Seagull - 2000 Glider ARF SEA130

ARF - Seagull - 2000 Glider ARF SEA130

Wingspan: 78.7 in (2000mm)Overall Length: 37.0 in (941mm)Wing Area: 488.3 sq. in. (31.5 sq. dm.)Flyi..

R3,450.00 Ex Tax: R3,000.00

ARF - Seagull - Cessna 152 60-91 ARF SEA174

ARF - Seagull - Cessna 152 60-91 ARF SEA174

Wingspan: 80.0 in (2030mm)Overall Length: 58.5 in (1490mm)Wing Area: 917 sq. in. (59.2 sq. dm.)Flyin..

R5,145.00 Ex Tax: R4,473.91

ARF - Seagull -CHRISTEN EAGLE SIZE 75-91 SEA 104

ARF - Seagull -CHRISTEN EAGLE SIZE 75-91 SEA 104

Wingspan………………………..53.9 in……………137cm.Wing area……………………….922.3sq.in…………59.5sq.dm.Approximate flying w..

R5,145.00 Ex Tax: R4,473.91