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TN Concorde

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Martin McIntosh27/12/2019 21:59:41
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3151 forum posts
1133 photos

I after many hours and unsuccessful googling I managed to persuade the plotter s/w to do what I wanted by a very roundabout route and have cut the doors. Here is the result of my efforts.

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I hope that the vinyl stays on the model because I know of nothing which they could be coated with that would go over polyester covering.

Martin McIntosh31/12/2019 10:08:29
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3151 forum posts
1133 photos

Just had a reply from TN. The elevator travel should be 15mm. He says it is on the plan somewhere but I could not find it.

Martin McIntosh01/01/2020 18:21:22
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3151 forum posts
1133 photos

A couple of quick snaps now that I think it is finished. Last minute jobs included fitting the fin, rudder servo, Rx and battery velcro. The cg was checked and found to be a little rearward so I added 80gm as far forward as possible. If I had been using 4s then the pack would have been 120gm heavier anyway. AUW is a bit more than that stated.

Ran the fans again but they do not all seem to come on song together. Despite the esc`s being programmed the same it takes a few seconds. I would need to dig out the Rx, reconnect three of the positive wires and run them individually somehow to check this, but plenty of time for that.

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I have had the Hunter plan blown up to 133% to fit that 64mm unit sent in error so will start a blog on it when I get going.

Gary Manuel01/01/2020 18:38:01
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2191 forum posts
1540 photos

That looks like a thing of beauty Martin. Well done. yes

PeterF01/01/2020 18:54:19
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489 forum posts
675 photos

Excellent, look forward to hearing how it flies. A chap has one at our club under build. I had a 4 fan plane at one time, the fans all started up at different throttle settings if I opened the throttle very slowly, but once running they all seemed to be in sync.

Martin McIntosh01/01/2020 19:59:55
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3151 forum posts
1133 photos

Thanks guys, but don`t look too closely since I do not think it is quite up to my usual standard. I found most aspects of it challenging. Now, how do I store it other than flat on the floor? It may have to hang on a wall by the noseleg.

Chris Freeman 302/01/2020 06:14:50
328 forum posts
473 photos

I struggled with the 2 motors on a pancake trying to get them in sync and a forum member advised that you must turn on the tx, connect all the batteries and only then turn on the rx. All the ESC's will then arm at the same time and the motors will all start at the same time. This is the way I start all my multi engine electrics.

Martin McIntosh02/01/2020 09:45:27
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3151 forum posts
1133 photos

Hi Chris,

I am a bit puzzled by this since I do not have the problem on my Vulcan or o/d Lanc.

My esc`s are connected to the Rx via a multi connector as used to set up quads, so I cannot power it up afterwards without a complex switch arrangement. Not bothered about take off but don`t want asymmetric thrust when changing power when airborne.

I cannot really see what difference your suggestion would make since all four sing their tunes simultaneously.

May try rigging the model to some electronic scales to see if there is a significant increase in thrust over time.

Craig Carr12/01/2020 07:35:55
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692 forum posts
457 photos

Hello Martin,

ive progressed one of these kits over the xmas break. It’s quite challenging in places Keeping everything true and straight but I’m almost there. Just the nacelles to make next then the control surfaces, fin and rudder.

Craig

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Craig Carr12/01/2020 07:47:33
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692 forum posts
457 photos

Re the graphics, I got in touch with Callie graphics and they sent across some scaled graphics in the final 98-2003 scheme that I particularly wanted.

I would highly recommend them, yes

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Martin McIntosh12/01/2020 09:27:13
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3151 forum posts
1133 photos

Coming along well. What power set up will you use? There is a huge amount of wiring to cram into there.

When covering, I found that the sheer length and awkward shape made it difficult to handle. I ironed on some 8mm wide strips to the fus. and wing where they join before the main pieces. This paid off.

Craig Carr16/02/2020 17:16:02
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692 forum posts
457 photos

Hello Martin.

ive started on my nacelles today. The FMS units are a loose fit. I need to order some acetate.

not sure if that will take up the slack but some 64th ply does do the job nicely of taking up the excess width in the ply formers. I just wondered if there would be any reason not to go down the route of using 64th to make the thrust tubes  (other than a weight penalty)   The tubes aren’t that long on the plan

also does anyone know the best way to keep the inlet ring on the fan unit?. Picture below. It just keeps dropping off. I was wondering about a drop of zap goo ?

craig

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Edited By Craig Carr on 16/02/2020 17:17:56

Martin McIntosh16/02/2020 18:14:15
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3151 forum posts
1133 photos

Hi Craig.

I am surprised that the FMS units are loose. I see that you used the cnc pack so I cannot speak for that. I used Powerfun fans which require a larger hole than that shown on the plan anyway. The bits between the ridges on these needed packing with 1/64th ply to get everything to fit. You could try thin card for the tubes. It is easier to work with.

My FMS unit has arrived for the Gnat and fits the hole I cut to the plan perfectly. The Powerfun ones come with the bell mouth sellotaped to them so try this. The FMS one I have hot glued to the former whilst fitting the fan.

Craig Carr23/03/2020 18:50:02
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692 forum posts
457 photos

Hi Martin,

Got the fans and nacelles fettled. Thank you.

I have started the control surfaces today. On the plan he has split the eleven (as below). I did this on his small vulcan and it works but I’m just wondering is it absolutely necessary ? Could the control surface just be made as one piece?

craig

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Martin McIntosh23/03/2020 19:50:44
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3151 forum posts
1133 photos

You will find that it is necessary because of the change in the wing shape. Not too difficult.

Craig Carr25/03/2020 12:36:19
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692 forum posts
457 photos

Hi Martin. Thanks for the reply. Yes of course, the wing shapeblush

Just made the port set but still need to add the torque rod

craig

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Martin McIntosh25/03/2020 12:52:08
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3151 forum posts
1133 photos

Just took some more pics now that the sun is out. Alas this will be its last outing for a while due to field closure.

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Dad_flyer25/03/2020 19:25:50
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213 forum posts
245 photos

yes

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