Northaero Dragon 2207.5 2650kv

Tested KV: 2640kv
Weight: 32.8g
Stator: 22mm x 7.5mm

Test Environment:

XRotor 40A ESC
Timing: Med-high
Dither: 7
PWM: Damped Light

Venom 60A Power Supply
2Farad Caps x2 in Series

Custom Datalogger

TI TivaC Launchpad
Allegro ACS758-200B
Voltage Divider
EagleTree eRPM Sensor
Custom Thrust Stand w/ HX711
4 ms logging rate

Atmospheric Data (Typical)

Barometric pressure: 29-30 in
Ambient Temperature: 70-74 deg F
Humidity: 50-60%
100% Thrust (g) Current (A) Voltage High RPM Pass Efficiency
Prop Tested: Max(g) Avg Max(g)* Max (A) Avg Max(A)* Avg Min(V)* Max(V) Max Min Avg Max* Watts G/W
HQ 5x4GF1474 1467 194.06 42.22 15.29 16.16 35419 33745 34283 646 2.3
Lumenier 5x4.51557 1550 184.69 45.96 15.23 16.15 35419 32967 33452 700 2.2
GemFan 5x4.5HBN1577 1564 163.15 45.23 15.24 16.15 35419 32967 33632 689 2.3
HQ v1s 5x4x31589 1582 173.16 44.21 15.27 16.15 34843 33482 33912 675 2.3
HQ v1s 5x4x4PC1610 1595 172.40 47.24 15.23 16.16 34843 32715 33236 719 2.2
MyWing 5x4.5x31622 1612 183.30 50.70 15.22 16.16 33879 31512 32185 772 2.1
HQ v1s 5x4.3x3PC1654 1646 176.46 49.24 15.23 16.16 34285 31982 32610 750 2.2
HQ 5x4x3GF1689 1665 202.43 49.72 15.20 16.16 33613 31982 32559 756 2.2
DAL Cyclone 5x4.5x31679 1670 184.82 51.87 15.15 16.16 32840 31282 31763 786 2.1
DAL 5x4.5x3HBN1731 1707 197.23 54.04 15.13 16.16 32223 30612 31302 817 2.1
HQ v1s 5x4.8x31785 1738 207.88 54.23 15.10 16.16 32590 30612 31317 819 2.1
DAL Cyclone 5x4.6x31776 1744 202.69 57.06 15.10 16.16 31168 29970 30461 862 2.0
HQ 5x4x41767 1751 187.99 57.10 15.08 16.16 31397 29761 30409 861 2.0
Lumenier Buttercutter 5x5x31782 1771 171.89 56.04 15.23 16.16 32590 30181 30843 854 2.1
75% Thrust (g) Amps Volts RPMs Watts G/W
HQ 5x4GF92722.7315.75278783582.6
HQ v1s 5x4x3101824.7315.66273593872.6
GemFan 5x4.5HBN101925.2015.65273943942.6
Lumenier 5x4.5103525.4015.65273593972.6
HQ v1s 5x4x4PC106826.9515.62269484212.5
HQ 5x4x3GF108727.2915.64269864272.5
HQ v1s 5x4.3x3PC110327.7215.63267484332.5
DAL Cyclone 5x4.5x3111728.5715.60264684462.5
MyWing 5x4.5x3113229.7315.59261894632.4
DAL 5x4.5x3HBN117230.7015.56259274782.5
Lumenier Buttercutter 5x5x3118630.1815.57261884702.5
HQ v1s 5x4.8x3119230.6015.56260254762.5
DAL Cyclone 5x4.6x3120931.7015.55257984932.5
HQ 5x4x4122032.3215.52255195022.4
50% Thrust (g) Amps Volts RPMs Watts G/W
HQ 5x4GF49010.0515.94203721603.1
Lumenier 5x4.554111.1115.93200221773.1
HQ v1s 5x4x354710.9715.93200591753.1
GemFan 5x4.5HBN54911.1515.93201541783.1
HQ v1s 5x4x4PC58312.0515.92196391923.0
HQ 5x4x3GF59111.9915.93195881913.1
HQ v1s 5x4.3x3PC59212.1615.92195891943.1
DAL Cyclone 5x4.5x359612.3815.92195621973.0
Lumenier Buttercutter 5x5x362012.5715.92192842003.1
DAL 5x4.5x3HBN62813.2015.91190342103.0
HQ v1s 5x4.8x363013.0615.91191262083.0
DAL Cyclone 5x4.6x363613.2515.90191102113.0
MyWing 5x4.5x363913.4915.90188892153.0
HQ 5x4x466313.9915.89187312223.0
25% Thrust (g) Amps Volts RPMs Watts G/W
HQ 5x4GF1673.3516.0711859543.1
HQ v1s 5x4x31813.5616.0811842573.2
Lumenier 5x4.51833.5816.0811831583.2
GemFan 5x4.5HBN1913.6616.0811810593.3
HQ v1s 5x4x4PC2023.8016.0811694613.3
HQ v1s 5x4.3x3PC2023.8716.0811670623.2
DAL Cyclone 5x4.5x32063.8616.0811675623.3
HQ 5x4x3GF2123.8616.0811700623.4
Lumenier Buttercutter 5x5x32123.9516.0811623643.3
DAL 5x4.5x3HBN2234.1516.0811533673.3
DAL Cyclone 5x4.6x32244.1216.0811546663.4
HQ v1s 5x4.8x32244.1816.0811549673.3
MyWing 5x4.5x32374.3916.0811377713.4
HQ 5x4x42474.4116.0811371713.5
IDLE Thrust (g) Amps Volts RPMs Watts G/W
HQ 5x4GF461.3116.116281212.2
HQ v1s 5x4x3461.3016.126283212.2
Lumenier 5x4.5471.3216.126210212.2
GemFan 5x4.5HBN511.3316.126234212.4
HQ v1s 5x4x4PC521.3016.136186212.5
HQ v1s 5x4.3x3PC521.3916.136264222.3
DAL Cyclone 5x4.5x3541.4516.136199232.3
Lumenier Buttercutter 5x5x3541.4516.136216232.3
HQ v1s 5x4.8x3581.5116.136139242.4
HQ 5x4x3GF591.4716.136163242.5
DAL 5x4.5x3HBN591.4716.136176242.5
DAL Cyclone 5x4.6x3591.4416.136187232.5
MyWing 5x4.5x3651.5416.126092252.6
HQ 5x4x4681.5516.136083252.7