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Author Topic: Loft Find from 17 years ago - Sonic 500  (Read 410 times)

Offline htiek

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Loft Find from 17 years ago - Sonic 500
« on: August 26, 2020, 07:51:20 PM »
Found this bad-boy lurking in the loft from two house-moves ago, the Motors and Rotors invoice is dated May 2003.
I suppose it is about time I put it together!
What are the thoughts on making it leccy? Looks like there is room for a 3s or similar lipo in there...

Is there a rule of thumb of watts per kilo or similar for something that's meant to be a pylon racer?
Keith Murray
Returning Aeromodeller!

Offline Mike Deans

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #1 on: August 27, 2020, 07:32:35 AM »
Hi,
     Yes there are guidelines to assist you in choosing a suitable power train, I googled " Watts per Pound for RC planes and came up with a few sites I.e. 
https://www.rc-airplane-world.com/watts-per-pound.html

https://www.modelairplanenews.com/electric-back-to-basics/


Mike
« Last Edit: August 27, 2020, 07:37:50 AM by Mike Deans »
Happiness is flying and landing in one piece

Offline IanF

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #2 on: August 27, 2020, 07:45:49 AM »
Iíd use George at 4max for suggestions. Post piccies of the kit and a piccy of the specs on the box. Also how you intend to fly it ( fast , sporty etc)

Personally Iíd use a https://www.4-max.co.uk/po-3541-1270.html. With a10 x 5 on 3s or 8x8 on 4s (faster) .

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Offline htiek

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #3 on: August 27, 2020, 07:38:51 PM »
Thanks for the links chaps, interesting reading!
I've sent off the specs to 4-max as suggested and will see what is suggested, probably exactly what Mr Forrest has already sussed!
Cheers,
Keith
Keith Murray
Returning Aeromodeller!

Offline IanF

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #4 on: August 27, 2020, 09:48:43 PM »
He likes to discuss things with you so may ask you to call. He uses Motocalc to help him
http://www.motocalc.com/

Iíve tried to use it but find my ageing mind goes into overload
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Offline htiek

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #5 on: August 28, 2020, 07:31:43 PM »
You were pretty close to George's recommendation Ian.
He suggests PO-3541-1270 but he recommends 8x6 prop on 4s 2200mAh, 40C LiPo. He reckons 8x8 will overload both the motor and battery.
I'll have to invest in some 4s, all I have are 3s.

Hmmm, I wonder how the Timber and Visionaire would be on 4s >:D

Cheers,
Keith
Keith Murray
Returning Aeromodeller!

Offline IanF

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #6 on: August 28, 2020, 08:34:39 PM »
Well there you go, I checked the prop on my motor again, and the 8x8 is actually an 8x6 ( I need new glasses!) 🙂

Are you buying the motor/speedo?
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Offline htiek

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #7 on: August 28, 2020, 08:45:17 PM »
Yes, I was just putting a shopping list together with 4-max. They seem to have all the bits in stock including some consumables I will need, snakes and so forth.
Keith Murray
Returning Aeromodeller!

Offline IanF

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Re: Loft Find from 17 years ago - Sonic 500
« Reply #8 on: August 29, 2020, 08:18:55 AM »
Iíll test crash fly it for you when itís done 😀
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