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Author Topic: Fairy Huntsman 47ins  (Read 12856 times)

HS93 (RIP)

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Re: Fairy Huntsman 47ins
« Reply #50 on: March 12, 2012, 11:06:47 AM »

that looks great have you done a video yet? run time can be a problem because of the power needed to get a big weight up on the plane, playing with props can help a lot in both speed and duration, have you got access to any GPS equipment to get an idea of speed ? we found it was the only way to get a true reading, if you look around the net there are plenty of pictures of Huntsman 28s that you can look at until you find one you want to model it after it may be handy not to have to much in the way of fine fittings until finish playing with the set up,
But you have got it well out of the water , are you sharing batteries between motors or have they got there own packs if they haven't that will double your run time straight away plus will give you a bit more speed Boats of that size can take the weight if you watch where you put the weight.

Peter
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me3

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Re: Fairy Huntsman 47ins
« Reply #51 on: March 12, 2012, 06:05:18 PM »

Very nice model. I am from Upton which is near Poole. Where do you sail your models? I have a boat and sail my model boats off my boat but I am looking for somerwhere else to sail my models!

Regards Reece ;)
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Norseman

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Re: Fairy Huntsman 47ins
« Reply #52 on: March 12, 2012, 06:15:00 PM »

Hi Reece
http://www.pryc.co.uk/ nearby?  :-)
Dave
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me3

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Re: Fairy Huntsman 47ins
« Reply #53 on: March 12, 2012, 08:07:26 PM »

Thanks. Yes that is nearby. I was wrongly informed by a friend that the lake was only for sailing boats

Reecee
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chombo

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Re: Fairy Huntsman 47ins
« Reply #54 on: March 13, 2012, 01:37:30 PM »

Hi Peter the set up for the boat at the moment.

 MOTOR TORNADO THUMPER V2 4250/06 800KV BRUSHLESS OUTRUNNER
BATTERY  GENS ACE 5500MAH 3SELL 25C LIPO
ESC SEAKING 60A BURST 120A INPUT 2-6CELLS LIPO
PROPS GRAUPNER 455.6a 45MM  M5   PITCH 38
SEPARET BEC BATTERY 6v

I have one battery per motor 2 esc, will be trying different props see
how it goes and get a gps.
Hi Reece I run my boats in the new forest and Poole park you can sail and run electric in Poole park.
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HS93 (RIP)

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Re: Fairy Huntsman 47ins
« Reply #55 on: March 13, 2012, 06:39:35 PM »

Looking at the Overlander chart you can go to 7 cells if you want per motor , so there is room to up the speed dramaticaly if you want, but that will not give you run time.

Peter
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me3

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Re: Fairy Huntsman 47ins
« Reply #56 on: March 13, 2012, 07:43:38 PM »

Thank you very much for your help

Reece
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pompebled

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Re: Fairy Huntsman 47ins
« Reply #57 on: March 24, 2012, 10:53:38 PM »

Hi Chombo,

Congrats on your maiden run!

Regarding the runtime; my guess is the props are too large (or to coarse in pitch), try smaller ones.

When I take your guesstimate of five minutes full throttle, I get an average ampdraw of 66A...
(capacity in A x 60, divided by the runtime in minutes)
That's on the max of the specs of those motors.

Did you check the temperature of the components?
Was things warmer than they should?

Regards, Jan.
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