Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length.

[gliggsy]

got my first boat, a fairey huntsman 31" part built and am looking for some ideas for a power set up, now I have retrieved a brushed 12 volt motor from a cordless drill and coupled it to a Graupner navy V40-60 esc which i happened to have in my spares box, tried to run it using a servo tester but can only get it to run one way, does it need to be controlled via Tx to get reverse? It does seem to have, what I would consider a decent speed range but then I am only guessing, what prop size and speed should I be looking at for a model this size? Motor is about 36mmx56mm with a 1/8" shaft just to give some perspective. I know I could just plunge my hand in my pocket and buy me a decent set-up but then I'm from Yorkshire and summat from nowt feels much more satisfying .....G    Ps why is it so difficult to post on this site,,,,, 6 attempts, verification code impossible to see and shortcut u/s   !!!!!!!!

[bj]

Go back to a post by CAPTAIN FLACK on June 11th 2012. There is a chart of motors/hulls/props that will give you an indication of what you need for your hull.

[SailorGreg]

Go back to a post by CAPTAIN FLACK on June 11th 2012. There is a chart of motors/hulls/props that will give you an indication of what you need for your hull.

Got a link, or a clue to which thread this was in?

[Stavros]

gliggsey the verification code thingy will disappear after 10 posts this is to make sure you are a human being ha ha.
 
Firstly welcome to the madhouse so to speak there is a wealth of knowledge on this site.
 
Regarding the esc/motor YES I think you will need to couple to a tx to get reverse BUUT I will stand corrected on that statement.As regarding your motor Personally I think you will find it CURRENT hungry....what I mean with this is that you will get short run times.
 
Prop size with that motor...usually in drills they are an 850 series motor(unless I am wrong)....the max prop that I would recommend would be a 55mm 2 bladed plastic prop........in your case I would suggest around the 40-50,, range,this will allow the motor to spin up to it's max rpm which I would guess would be around 9000rpm.
 
Now being a yorkshireman and knowing what you guys are like !!!!! Do a search on hte forum for Huntsman builds and you will find a host of info on what motors the guys are running and go from there
 
 
Dave

[Shipmate60]

Dave,
I got a brutal 550 out of a cordless drill.
Sent a Perkassa on plane but was very power hungry.


Bob

[bj]

Got a link, or a clue to which thread this was in?

Ipads are not friendly for displaying links but PC are, see
 [size=78%]http://www.modelboatmayhem.co.uk/forum/index.php/topic,37609.msg377048.html#msg377048[/size]


 and if the link does not work then copy and paste......

[SailorGreg]

Thanks bj - link works fine.