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Lindsay Todd's Fred - RCM&E April 2017

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Former Member18/03/2017 21:07:58
8090 forum posts

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Former Member19/03/2017 07:45:06
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denis parkinson19/03/2017 13:58:48
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145 forum posts
66 photos

I just bought the wing joining tube this week from Slec. Just used it in the centre section, and one wing so far, and it works a treat

denis parkinson19/03/2017 14:03:27
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145 forum posts
66 photos

As for the motor, I went for the Turnigy Aerodrive SK3 - 2830-920kv, from HK, as it showed up as a replacement for the speed 400

Former Member19/03/2017 15:38:25
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denis parkinson19/03/2017 16:30:16
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I was going from a result thrown up from Google about the Turnigy motor being a replacement.

If its not man enough for the job, its an easy job to change the motor in Fred.

I spent a couple of days scanning, printing and cutting out the parts. I already had lots of lite ply etc, so it cost me nothing apart from some paper and a glue stick.

Former Member19/03/2017 20:48:37
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denis parkinson20/03/2017 13:09:05
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I found another motor in my drawer that is more than up to the job, and is rated at 400 watt.

I'm just over the 100 watts per pound (assuming the model will weigh around 3 pound when finished), but I do have a throttle.dsc01818.jpg

Edited By denis parkinson on 20/03/2017 13:10:14

Former Member20/03/2017 21:38:56
8090 forum posts

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denis parkinson27/03/2017 19:33:21
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A few decals to add,plus a go faster stripe, and she's ready for the maidenfred.jpg

Former Member27/03/2017 20:50:31
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Lindsay Todd28/03/2017 13:27:58
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1764 forum posts
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Blimey that's quick, super job. I'll check the spec again on my motor, its pulling just under 300watts as I recall, fly's fine but not much reserve to play with. Linds

Mowerman28/03/2017 16:22:07
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1565 forum posts
105 photos

Denis P, don't forget the engine and pilot.

denis parkinson28/03/2017 22:17:10
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Posted by Mowerman on 28/03/2017 16:22:07:

Denis P, don't forget the engine and pilot.

Pilot has just been delivered from HK

denis parkinson28/03/2017 22:20:14
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145 forum posts
66 photos
Posted by Lindsay Todd on 28/03/2017 13:27:58:

Blimey that's quick, super job. I'll check the spec again on my motor, its pulling just under 300watts as I recall, fly's fine but not much reserve to play with. Linds

Thanks Linds..The superb plans and your build diary helped..

I have just been through my wood collection, and I have enough to make another one...Very tempted.lol

denis parkinson31/03/2017 09:53:28
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145 forum posts
66 photos

Linds, if your still about, I have a question regarding weight..Can you tell me what the all up weight of your Fred was please?

Mine weighs in at exactly 4 pounds.

Lindsay Todd31/03/2017 10:42:27
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1764 forum posts
1826 photos

For the first couple of flights she came in at 3.2lb without the battery, I have since added a few bits and pieces so probably close to 4lb with battery so that would sound about right. We have the benefit of nice short grass or tarmac so if your around 300 watts let her build up speed and don't pull her off to soon or steeply. Have fun. Will have mine at Wrexham fly in tomorrow.

Linds

denis parkinson31/03/2017 11:53:42
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145 forum posts
66 photos

Cheers for that Linds..

I'm running mine with a 3s 2.2 and a 9x6 prop, and on the watt meter, its pushing out just shy of 300 watts.

I have however found out, that the motor I'm using will happily turn a 11x7 prop, so I have one on order.

The c.o.g however is out, and she is tail heavy..I tried putting the battery directly behind the motor, and she balances perfectly, so today, I'm going to try and take out the original battery tray, and make a new one to fit inside the cowl cover..Its a nice empty space, so I may as well make use of it..Added advantage, is that I only have to remove the cover, and the battery comes out with it.

Anthony Hodder07/05/2017 21:02:15
6 forum posts

Hi Denis

I am building a Fred at the moment. Please can you tell me what you used for covering the hatch and rear decking and also what size Phenolic tubing you used for the wing ?

Thanks Tony

Former Member08/05/2017 20:58:28
8090 forum posts

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