|Jun 03, 2014, 07:59 AM|
Joined Mar 2014
AERONAUT Classic motor!
Im building a Aeronaut Classic but I don't know which motor I will use, any suggestions?
I want it to be from Hobbyking and brushless and last but not least I want it to be powerful enough.
hope someone can help!
|Jun 03, 2014, 11:35 AM|
Joined May 2004
'Powerful enough' is relative, if you want the boat to run at scale speed like this:
This is sufficient:
Roxxy BL 3529-20
Roxxy BL Control 930
Graupner 2318.37,5k prop
HK will have an equivalent motor and ESC, just compare the roxxy data.
|Jun 03, 2014, 03:55 PM|
Joined May 2004
That's a matter of calculus; 7,4V x 1500Kv = 11100 rpm unloaded, which is about 9000 rpm under load.
If you want to go faster, either take a bigger prop (if the motor can turn it), keep the prop and go for a 1600Kv, or 1800Kv motor with slightly more Watt, or both.
(This motor is way overkill and will turn a 40 - 42 twoblade, high pitch prop that will overturn the boat when full throttle is applied from a standstill.)
Another option is to go to 3S and select a lower Kv motor with sufficient power to tuern a bigger prop more efficiently (higher Voltage equals lower Ampdraw).
Still overkill, but easier on the Ampdraw.
To get an idea what overkill will do to a 110 cm boat, check out 800Kv on 4S on a Ø58 mm prop:
Not something a Classic hull was designed for!
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