VCI HOBBY Spark 1605

VCI HOBBY Spark 1605
Image: racedayquads.com
Stator1605
KV options3650
Weight12.7 g
Shaft1.5mm
Max cells3S
Configuration12S14P
DimensionsØ20.6x17.4 mm
Max thrust571 g
Price (approx.)12.99 USD

At 12.7 g it is 0.6 g lighter than average across the 3 1605-class motors in our database (avg 13.3 g).

Thrust data (VCI HOBBY bench test)

KVPropBatteryThrottleCurrentRPMThrustEfficiency
1800 GF D76-5 6S 30 0.85 A 13377 72 g 3.53 g/W
1800 GF D76-5 6S 40 1.42 A 15546 106 g 3.11 g/W
1800 GF D76-5 6S 50 2.1 A 17704 144 g 2.86 g/W
1800 GF D76-5 6S 60 3.05 A 20052 182 g 2.49 g/W
1800 GF D76-5 6S 70 4.4 A 22632 252 g 2.39 g/W
1800 GF D76-5 6S 80 5.94 A 24959 295 g 2.07 g/W
1800 GF D76-5 6S 90 7.57 A 27015 347 g 1.91 g/W
1800 GF D76-5 6S 100 9.35 A 28433 420 g 1.87 g/W
2050 GF 5125-3 4S 30 0.66 A 9826 72 g 6.82 g/W
2050 GF 5125-3 4S 40 1.12 A 11470 106 g 5.92 g/W
2050 GF 5125-3 4S 50 1.86 A 13140 153 g 5.14 g/W
2050 GF 5125-3 4S 60 2.82 A 15075 203 g 4.5 g/W
2050 GF 5125-3 4S 70 4.09 A 16932 280 g 4.28 g/W
2050 GF 5125-3 4S 80 5.91 A 18561 345 g 3.65 g/W
2050 GF 5125-3 4S 90 8.27 A 19955 445 g 3.36 g/W
2050 GF 5125-3 4S 100 10.04 A 20970 503 g 3.13 g/W
2450 GF D75-3 6S 30 1.36 A 20847 133 g 4.07 g/W
2450 GF D75-3 6S 40 2.48 A 24251 177 g 2.97 g/W
2450 GF D75-3 6S 50 3.55 A 27276 225 g 2.64 g/W
2450 GF D75-3 6S 60 4.81 A 30980 275 g 2.38 g/W
2450 GF D75-3 6S 70 6.27 A 33410 323 g 2.15 g/W
2450 GF D75-3 6S 80 8.28 A 36175 385 g 1.94 g/W
2450 GF D75-3 6S 90 10.37 A 39825 467 g 1.88 g/W
2450 GF D75-3 6S 100 12.46 A 41421 571 g 1.91 g/W
2800 GF D76-5 4S 30 1.25 A 13677 80 g 4.0 g/W
2800 GF D76-5 4S 40 2.2 A 15836 128 g 3.64 g/W
2800 GF D76-5 4S 50 3.35 A 18083 162 g 3.02 g/W
2800 GF D76-5 4S 60 4.62 A 20474 204 g 2.76 g/W
2800 GF D76-5 4S 70 6.61 A 23185 273 g 2.58 g/W
2800 GF D76-5 4S 80 9.68 A 25578 327 g 2.11 g/W
2800 GF D76-5 4S 90 12.31 A 27778 377 g 1.91 g/W
2800 GF D76-5 4S 100 15.3 A 29218 443 g 1.81 g/W
3350 GF 3052-3 4S 30 1.86 A 18143 105 g 3.53 g/W
3350 GF 3052-3 4S 40 2.95 A 20848 136 g 2.88 g/W
3350 GF 3052-3 4S 50 4.48 A 23764 195 g 2.72 g/W
3350 GF 3052-3 4S 60 6.47 A 26012 228 g 2.2 g/W
3350 GF 3052-3 4S 70 8.99 A 28814 273 g 1.9 g/W
3350 GF 3052-3 4S 80 11.66 A 31689 330 g 1.77 g/W
3350 GF 3052-3 4S 90 15.17 A 34407 419 g 1.73 g/W
3350 GF 3052-3 4S 100 19.31 A 36441 493 g 1.6 g/W
3650 GF D75-3 4S 30 2.1 A 19956 111 g 3.3 g/W
3650 GF D75-3 4S 40 3.41 A 23757 178 g 3.26 g/W
3650 GF D75-3 4S 50 5.12 A 26601 220 g 2.69 g/W
3650 GF D75-3 4S 60 7.26 A 29160 258 g 2.22 g/W
3650 GF D75-3 4S 70 9.17 A 32070 317 g 2.16 g/W
3650 GF D75-3 4S 80 11.5 A 35425 376 g 2.04 g/W
3650 GF D75-3 4S 90 14.64 A 39361 471 g 2.01 g/W
3650 GF D75-3 4S 100 18.46 A 42248 545 g 1.85 g/W

Manufacturer bench figures (VCI Hobby bench, 1800 and 2450 KV at 6S (24 V), 2050, 2800, 3350 and 3650 KV at 4S (16 V), one prop and 8 throttle points (30-100%) per winding); real-world thrust varies with ESC, battery sag and prop condition.

Thrust-to-weight with this motor

RPM & prop speed on this motor

Props in this motor's class

PropSizeBladesWeight
Gemfan 4022F 2-Blade 4.0x2.2 2 0.37 g
HQProp T3.5x2.2x2 3.5x2.2 2 1.1 g
HQProp Durable T4x2.5 4.0x2.5 2 1.45 g
HQProp T3.5x2.5x3 3.5x2.5 3 1.55 g
HQProp 3.5x2.2x3 3.5x2.2 3 1.6 g

Where this data comes from

The rows are VCI Hobby's own 'Testing Dates' table, published as an image in the Specifications tab of the motor's product page on vcihobby.com. VCI sells and benches this motor in SIX windings - more than any other sheet in this overlay - and all six tables are here, one prop each; `kv_options` keeps the 3650 KV our retail source sells, so MAX THRUST READS 571 g, WHICH IS THE 2450 KV WINDING on a GF D75-3 at 6S - the 3650 KV's own best is 545 g on the same prop at 4S. Every row reproduces its own run's identities (printed Power = its voltage x printed current, printed Efficiency = Thrust / Power). Five of the six panels' peak current and maximum power land on their own 100% row to the digit; the 2050 KV panel's 240.96 W is 24 V x its own 10.04 A, though that winding was benched at 16 V where the same current gives the 160.64 W its table prints. The panels give a per-winding internal resistance, 435, 300, 225, 180, 130 and 120 mOhm, which is why resistance_mohm stays empty. ONE DISAGREEMENT WITH OUR RETAIL LISTING IS LEFT AS IT STANDS: the listing sells the 3650 KV as a 3S motor and VCI's own panel for that winding states 4S (16 V), which is also the voltage its table was run at; max_cells keeps the listing's figure. Identity is otherwise the 1605 stator (the panels print Ø16*L5 mm) and 12.7 g including cable, which is the 3650 KV panel's own weight.

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