RCU Forums - View Single Post - Hacker A30-12L vs Turnigy SK3 3542-1000Kv -Head to Head PERFORMANCE TEST

04-10-2013 | 09:17 PM

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DrMotor

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From: M, S, NEW ZEALAND

RE: Hacker A30-12L vs Turnigy SK3 3542-1000Kv -Head to Head PERFORMANCE TEST

CONT:
9. SO: WHAT IS A "GOOD" OR "BEST" PROP TO USE FOR THIS 150g 1000Kv MOTOR ?
a. The results of this test suggest that on 3S LiPo, a 12x8 or a 13x6.5 prop might well be best for this motor. On 3S LiPo, the 12x8 gave 1.72kg (=1720g) of Thrust for 38.2A; The 13x6.5 prop also gave 1.72kg of Thrust, but for 39.5A.

b. On 4S LiPo, the 13x6.5 looks the best. It gave 3.015 kg of Thrust for 69.2A, whilst the 14x85 prop gave hardly any more Thrust, but required 77.2A.

c. On 4S LiPo, the 15x8 prop gave less Thrust than the 13x6.5, for about the same current draw.

10. APPLICATIONS OF THIS MOTOR:
AeroModel state: "The New A30 V2 series motors are designed for Larger Parkflyers, 3D-Aerobatic, Scale models and Helicopters using 2 to 5 series LiPoly batteries " - https://www.aero-model.com/8_66/Moto...30-Series.html

a.. AEROBATIC PLANES:
A 150g motor like this Hacker A30-12 L would typically be used in Sebart 30-size planes (~1.3m wingspan) which have a 1.4kg flying weight - http://www.sebart.it/30E-class.html
Similar planes to this are 3D Hobby Shop 48” wingspan planes - http://www.3dhobbyshop.com/3D-Aircraft_c_189-1-1.html
or: Extreme Flight Vanquish, Precision Aerobatics 50” wingspan planes which have a flying weight 1.2kg to 1.4kg.
In planes like this, this Hacker motor on 4S LiPo will give these planes a 2:1 Thrust to Weight ratio. -Now, that is fun ...

b. SLOWER FLYING PLANES and SAILPLANES
This 150g 1000Kv motor can be used in slower flying planes and scale-type planes -probably up to ~1.6kg with 3S LiPo, and up to ~2.5kg with 4S LiPo.
For sailplanes: Esprit Models make some recommendations - http://www.espritmodel.com/hacker-a30-12l-motor-v2.aspx -and suggest that this motor might be suitable for a 2m sailplane like the Great Planes “Spirit ARF” which has a flying weight of ~1.2kg. They suggest a 12x6 folding prop.

BEST PROPS for this motor:
12x8 on 3S LiPo
13x6.5 on 3S LiPo
13x6.5 on 4S LiPo

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