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New- 2018 CONCORDE for 4x50mm EDF

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Tony Nijhuis05/03/2018 23:18:36
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601 forum posts
225 photos

So this one self indulgent and something i have always wanted to design and build.....help along by the recent telly programmes..

Almost ready to test fly. 30" wing span, 72" Long, AUW 4.5lbs (I hope) 4x50mm EDF units, 2x3200mah 4S lipo, retracts and articulating nose (well it has to)

More info to follow.....if successful a plan will be avaialble

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Simon Chaddock06/03/2018 00:04:22
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5486 forum posts
2885 photos

Very impressive.

A few liberties required with the shape of the engine nacelles for the EDFs? wink 2

Concorde Speedbird06/03/2018 07:19:26
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2719 forum posts
631 photos

Oh yes! I love the move-able nose on the CAD model too!

The grain of the wing sheeting is interesting, I guess that because the wing is much longer in chord than in span that the moment across the span is fairly manageable and spread across several spars as the CAD model shows? Not a hugely dissimilar internal design to the full size.

I do hope it is successful and a plan could become available because I am very interested in this.

Jacob

Tony Nijhuis06/03/2018 19:46:49
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601 forum posts
225 photos

Yes you are right about liberties Simon.....I would have loved to make them scale but it would have meant 30mm fans and that simply wasn't going to work....I'm planning on using 4x 10-bladed Dr Mad 50mm edf units....should give loads of power.....

Your note about the wing sheeting Jacob is correct....the tapering leading edge suited the sheeting running in that direction....underneath, it run cross way as you would expect so the wings are strong in +G....

Simon Chaddock06/03/2018 21:32:21
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5486 forum posts
2885 photos

Tony

I build a bit lighter (Depron) than you so my slightly larger Concorde uses 40 mm EDFs in scale nacelles but then it has no undercarriage, just 3 micro servos and a single 3000 mAh 2s.

Tony Nijhuis06/03/2018 22:34:54
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601 forum posts
225 photos

Thats the great thing about Depron...you really can save significant weight. I dare say if I can make it work in Balsa and satisfy the balas bashers, the 'Depron Boys' will have a field day...

Ray Wood 414/03/2018 13:33:57
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93 forum posts
10 photos

Hi Tony

We must have been watching the same programmes, I thought it fascinating that the engine intakes were the key to the Super Cruise above the speed of sound without burners on relied upon the intakes slowing the air to the engines to 350mph, above that they wouldn't run. Hope it flies OK I will build one a true classic, even if I hav'nt got the bottle to fly it

Regards Ray

Trevor Crook14/03/2018 14:14:37
874 forum posts
65 photos

Look forward to seeing it Tony. After the Harrier it should be a piece of cake!

Tony Nijhuis14/03/2018 22:10:16
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601 forum posts
225 photos

Thanks Ray, one more for the Loft hey!.....you'll be please Red October is done for the Model Boat Special.cheeky

Yes Trevor....anything would be easier than the Harrier but the Concorde will need a little help from some gyros I think

Robert Parker19/03/2018 20:59:29
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916 forum posts
1175 photos

Very interested in this one Tony.

Regards

Robert

Steve Adams20/03/2018 21:17:19
187 forum posts
I am so glad to hear that you are doing this Concorde Tony. This aircraft in particular has a strong family connection as I mentioned before, my grandad helped to build this great plane(among others) and has always been a family favourite of ours. If anyone can do Concorde justice in model aircraft form it's you Tony. I look forward to seeing your progress on this fine feat of Anglo French engineering excellence. Kindest Regards Steve

Edited By Steve Adams on 20/03/2018 21:17:59

Tony Nijhuis02/07/2018 20:07:53
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601 forum posts
225 photos

Well been a bit quite on this one as i was waiting for flying strip the dry out and grass to be cut....and then forgot all about the model!!!

So had a couple of attempts but suffer grass cutting inhalation which stalled the fans and the undercarriage being too short, she couldn't rotate enough. Made a few other mods and a week later.....success!!!!

She needed a good head wind and full up elevator to rotate but once she was sitting on the back wheel she took off beautifully....a little dutch roll as you might expect but apart from that, an absolute diamond to fly......this was one model i really didn't think was going to work but yet again I was wrong.....

I ended up using the 4S Hobbyking 50mm 12 bladed ali unit all connected to a 4S 4500mah single pack. It needed all the power to take off mainly because the small 1-3/4" wheel and the long grass (yes grass had not been cut at the flying field) really caused quite a resistance....it needed almost full throttle to move her, but once away i was really surprised at how she tore down the runway even though i could hardly push the model along the ground!!!..... once away she would cruise around on 1/2 throttle. got around 3.5min fly time but had 30% in the pack so a little more testing i think.

Now working on the articulating nose and added a double boggy main U/C......definitely a plan in the offering soon.

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Gary Manuel02/07/2018 21:14:52
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1985 forum posts
1514 photos

Beautiful job.

Unmistakable a Concorde, even with the slightly oversized engine boxes.

Well done Tony.

Concorde Speedbird02/07/2018 22:36:03
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2719 forum posts
631 photos

Very very nice and I am delighted there will be a plan- it would be cool to have the colour scheme of one of the prototypes, maybe G-AXDN due to the visor.

Jacob

Simon Chaddock03/07/2018 00:06:28
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5486 forum posts
2885 photos

Tony

Very impressive indeed, well done!

Final all up weight?

Stuart Z03/07/2018 06:07:36
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382 forum posts

Very nice!

S

Tony Nijhuis03/07/2018 11:01:21
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601 forum posts
225 photos

Thank guys for your kind comments....AUW is 4lbs 5oz at the moment but will end up at around 5lb with detail and covering...I have no doubt I will build a bigger version as the model is very scalable

Tony Bennett03/07/2018 12:46:24
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5080 forum posts
129 photos

lovely design and work as usual sir.

reasonably light as well.

Tony B

Tony Nijhuis04/07/2018 13:12:57
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601 forum posts
225 photos

A few more pictures from the first test flight

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Steve Adams02/12/2018 12:35:55
187 forum posts

Absolutely fantastic Tony,

I look forward to seeing it covered...next year's special eh? cheekylaugh

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