Aberdeen Aeromodellers Flying Club

AAMFC => Fixed Wing => Topic started by: htiek on August 26, 2020, 07:51:20 PM

Title: Loft Find from 17 years ago - Sonic 500
Post by: htiek 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?
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: Mike Deans 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
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: IanF on August 27, 2020, 07:45:49 AM
I’d 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 I’d use a https://www.4-max.co.uk/po-3541-1270.html. With a10 x 5 on 3s or 8x8 on 4s (faster) .

Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek 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
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: IanF 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/

I’ve tried to use it but find my ageing mind goes into overload
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek 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
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: IanF 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?
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek 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.
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: IanF on August 29, 2020, 08:18:55 AM
I’ll test crash fly it for you when it’s done 😀
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: Dave Wilshere on November 03, 2020, 04:18:44 PM
Dammn not been here for a while...I still have my i/C Sonic 500 and would have paid good money for a kit!
Its an awesome aeroplane, I have one with a Q500 racing motor...too noisy for anywahere! and a G51 on a Zimmermann pipe that has a 10 x 10 prop and is whisper quiet and super fast!

Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek on June 12, 2021, 02:26:04 PM
Finally just about there, I'm not the fastest builder!
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: Mike Deans on June 13, 2021, 06:49:32 PM
Nice! when can can expect its maiden?

Mike
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek on June 14, 2021, 08:36:00 PM
Thanks Mike. Maiden will have to wait until time off work and weather eventually coincide!
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek on June 19, 2021, 04:04:07 PM
Successful maiden flight today   :D
No real drama, a bit of trim and she was flying very well. Might add a bit of expo, a wee bit twitchy but I guess it's meant for bank and yank pylon turns!
Landings were a wee bit fast but I'll get the message eventually. Looking forward to getting to know this model better.
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: Mike Deans on June 19, 2021, 06:05:20 PM
Sorry I missed that but was busily engaged transporting self South to Ambleside.

Mike
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: IanF on June 19, 2021, 08:12:40 PM
Sorry I missed that but was busily engaged transporting self South to Ambleside.

Mike
Big queue of cars with caravans behind you? 😀
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: Mike Deans on June 19, 2021, 08:38:11 PM
What an insult, I only saw six or seven and they easily passed me!

Mike  >:D
Title: Re: Loft Find from 17 years ago - Sonic 500
Post by: htiek on August 09, 2021, 07:43:41 PM
Ordered some 4s batteries as I currently only own two. Went for 55C only to find that they will not fit through the hatch that I had cunningly devised for my 40c batteries!  :-[
Ah well, out with the razor saw, some new balsa sheet and a bit of left over lurid green covering...