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Topflite GS P47 Build

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Harrier Mate13/09/2020 20:07:57
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208 forum posts
74 photos

OK... so I know we are really meant to focus on one build at once but I can't wait any longer to set about a Topflite GS P47 Thunderbolt that I picked up years ago at the BMFA Nationals from TJD Model for a bargain price as a discontinued kit.

Its been sitting in the attic ever since and a recent house move made me sell lots on eBay... but couldn't part with the Jug!

So in parallel with my Flair Fokker DVII, Here goes!

Harrier Mate13/09/2020 20:08:48
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208 forum posts
74 photos

img_4898.jpg

Harrier Mate13/09/2020 20:09:44
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208 forum posts
74 photos

Thats a lot of wood..... this is the original kit and not the ARF that followed!img_4899.jpg

Harrier Mate13/09/2020 20:12:32
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208 forum posts
74 photos

I decided that I want to build the razorback version and have been waiting patiently (weeks!!!) for the canopy and fibreglass cowlings from Fibreglass Specialities in US, together with the robart retracts from Tower Hobbies.

According to USPS Tracking, they have cleared UK customs and will be delivered early next week. It feels like waiting for Christmas!!

Harrier Mate13/09/2020 20:15:06
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208 forum posts
74 photos

In the interim, Ive dug out my definitive reference material.... 3 volumes of the Kagero books detail the P47 from its inception through to the N model. Beautiful line drawings and colour schemes.... even free decals for 1;48 and 1:72 scale models.... just got to choose the scheme now.....img_4881.jpg

Harrier Mate13/09/2020 20:20:22
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208 forum posts
74 photos

img_4895.jpgScaled up the line drawings to 1:5.75, the exact scale of the model to review the models outline in comparison to the real profile.... Topflite has done a pretty good job as the attached photos of the fin/rudder and tailplane/elevator show. Ive already decided on self adhesive aluminium foil to make the layered reinforcement of leading edge skin for elevator and rudder.

img_4896.jpg

Harrier Mate13/09/2020 20:32:50
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208 forum posts
74 photos

Hmmmmm! Not sure why the last few photos have rotated themselves!surprise

Jon - Laser Engines13/09/2020 22:14:12
5627 forum posts
271 photos

P47's always fly well but in the case of a big one like this moving the fuselage can be a bit like trying to move a beached whale!

Dont know what power plant you are looking at but i have sold a bunch of 300s and 360v's for these over the years with very positive reviews from customers so any equivalent 45-60cc class power plant will do the job nicely.

Dont get too worried by the weight. Clearly you dont want it to be a total porker, but 20-22lbs will be no bother at all.

I would use 6.5kg servos on all primary controls (perhaps 9kg if using a single elevator servo) but make sure you use 9kg or so on the barn doors that call themselves flaps.

Should be awesome once done.

Gary Clark 113/09/2020 22:41:26
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288 forum posts
153 photos

Good luck with the build! I always wanted one of these and was gutted when they stopped producing kits. Maybe I'll get my hands on one of them one day!

Gary

Nick Somerville14/09/2020 08:33:04
148 forum posts
85 photos

Can't say I always wanted one of these, but when I decided at the beginning of lockdown to build my first warbird and asked here for advice, the P47 was highly recommended. Being intimidated by the plans route, the TF GS P47 was what I tried to find, but alas not one anywhere to be had. I had a real hankering for a Laser twin and so the model also met my desire on that front too. All the best with your build and I look forward to following your journey.

Harrier Mate17/09/2020 20:32:52
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208 forum posts
74 photos

Well..... first hiccup! Having waited a month for delivery of the ‘Fiberglass Specialities’ glass fibre cowl from the States, it arrived massively distorted in a half crushed thin cardboard box!!! Not sure whether application of heat whilst bracing it to the correct shape will work. The rep from Fiberglass Specialities simply said ‘let me know how you get on’!!!

anyone know of any reputable glass fibre cowl manufacturers here in UK?????

on a positive note.... the robart retracts arrived, well packed and Undamaged!

kevin b17/09/2020 20:59:28
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1925 forum posts
152 photos

I'm finishing off one of its little brothers at the moment (1/7 scale). I am currently the third owner of the "part finished" kit. I was given it because the second owner hadn't realised what a mess the original owner had made of it ! Needless to say it is now a "semi scale" model.

With regards to your squashed cowl. I would advise bracing it in its correct shape and gently warming it to about 80 degrees C and then let it cool down slowly (after you have cooked the roast). As it is a relatively fresh moulding you should be in with a chance, but don't use excessive, or localised heat on it. this will distort it even more.

Edited By kevin b on 17/09/2020 20:59:47

Harrier Mate17/09/2020 21:30:09
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208 forum posts
74 photos

Thanks Kevin.... I was thinking just that.... with a hairdryer first to see if that even starts to cure the problem... and if that fails, using a wallpaper stripping hot air gun, whilst carefully ensuring I don’t generate any local heat spots. If that doesn’t work, the only solution is probably to make up the cheap and nasty ABS plastic cowl provided!

Tim Flyer18/09/2020 07:48:25
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1336 forum posts
239 photos

Depending how crushed it is there shouldn’t be much trouble bracing it out . If the inside is “raw” and not finished glass as I would expect . You could give it a good coat of epoxy and possibly add a bit of very light glass matting then cover with cling film and brace it . It will then harden in the correct shape.

Edited By Tim Flyer on 18/09/2020 07:48:55

kevin b18/09/2020 21:50:25
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1925 forum posts
152 photos
Posted by Harrier Mate on 17/09/2020 21:30:09:

Thanks Kevin.... I was thinking just that.... with a hairdryer first to see if that even starts to cure the problem... and if that fails, using a wallpaper stripping hot air gun, whilst carefully ensuring I don’t generate any local heat spots. If that doesn’t work, the only solution is probably to make up the cheap and nasty ABS plastic cowl provided!

I used the supplied cowl. If you decide to use that you will need to do some filling. I used a fine automotive 2 pack stopper as it is reasonably flexible and doesn't shrink like acrylic. do it in layers, rather than in one lump.

Harrier Mate19/09/2020 18:18:18
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208 forum posts
74 photos

Thanks for the info reference the ABS cowl... I had heard all sorts of horror stories about it. What did you use to glue it together?????

All credit to ‘Fiberglass Specialities’. I sent them some photos of how the cowl arrived and the packaging.... and they immediately said they will make and send another, appropriately packaged. Can’t complain at that.

but having the abs version too will be useful as a spare and to practise the likely chequerboard paint scheme!

Harrier Mate07/10/2020 17:08:20
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208 forum posts
74 photos

working between 2 homes at the moment so I've decided to build a portable building board, large enough at least for the tailplane and fin to be built on..... otherwise I'm never going to get started.

I really will have some photos of the build on here soon!

Harrier Mate10/10/2020 12:11:16
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208 forum posts
74 photos

accf5a46-e1fa-46d6-a068-80cb5b21d909.jpege6d2ac06-1812-4f13-86e8-f7981dac3225.jpeg0fe2bf7e-85c1-4e09-91b5-2722ad5fcfeb.jpegWheeeeeee! Looked what just arrived in the post from Fiberglass Specialities in the US. Craig Schmidt has been an absolute star. The first cowl I ordered arrived squashed and distorted due to damage in transit. Despite my best efforts I could not re-shape it to its original shape. Craig immediately made another and posted it out within 48 hours.

it arrived this morning in pristine condition. Absolutely delighted with the quality and detail. Great level of service and customer care! I would highly recommend the quality of their products and the value for money.

now I can properly get on with building!

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