Top speed test with the Alien 5S [HQ 5x4x4] [Emax 2600kv] [ImpulseRC]00:51

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[EDIT: Hit 102mph — 165kmh — with the new HQ S5x4x3 (see]
Top speed test, with the ImpulseRC Alien, with a 5S batt, 5x4x4 props, and 2600kv motors.
My objective was not max speed with the best 2/3 bladed prop, but the max speed with the 5x4x4 I daily use. I tried as well the Racekraft 5x4x4 (transparent blend) on a similar run, but had to stop midway, as the propellers couldn’t handle the power, flattening and resonating/producing a very loud, disturbing screaming sound, slowing down/shaking the craft. Interesting.


Gratz to the crew!

– ImpulseRC Alien 5″
– Betaflight 3.0
– 5x4x4 HQ props (skitzo blue and black blend)
– Emax RS2205 2600kv
– FVT LittleBee 30A (BLHeli 14.6 — medium high)
– MotoLab Cyclone FC @2Khz
– HS 1177 Fpv camera with 2.8mm lens (40°)
– TBS Core PNP50
– Multirotorparts 5S 1300mah 65-130C
– ImmersionRC 600mw Raceband Vtx
– ImmersionRC Spironet V2 antenna
– TBS Crossfire micro receiver
– Gopro 4 Session
– CreativeDex GP Session 40° mounting
– AUW: 687g

Ground setup:
– Fatshark Dominator v3
– ImmersionRC diversity receiver v4.1 (Raceband)
– TBS Triumph antenna
– ImmersionRC 8Dbi patch antenna
– FrSky Taranis
– TBS Crossfire receiver

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