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Jet Provost 1.5metre Andy Blackburn PSS Plan

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Jez Billington08/11/2019 09:15:04
9 forum posts

Canopy looks good Phil. Keep up the good work.

Bravo for your build Pete - looks great.

I’m bogged down with wing construction having decided to add flaps and mav lights. Will put the weight up somewhat

Peter Garsden20/11/2019 21:21:17
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1626 forum posts
1204 photos

Well the pilots have arrived from Real Model Pilots. The detail is really good and they are very light. Problem is that they don't fit into the cockpit. To be fair, I need to cut away some more of the former, but I think I will have to shave off some elbow where it isn't seen. I am sure they are the correct scale, I have just not allowed enough depth with the floor on top of the battery box. It would need a complete redesign with the battery box on the floor I think.

Actually, I sneaked into the shed and found them tucking into salted caramel ice cream and chips. They have just ballooned. I told them they are on weight watchers but they just laughed and told me that they haven't had any exercise since someone cut their legs off - as if?

15742812251881802092232.jpg

Phil Cooke24/11/2019 20:43:35
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2280 forum posts
1547 photos

I hope you're able to trim down those pilots Pete!

The canopy plug is finally finished... Having shaped it on the model, I've since been adding framework and then building up a base from which it can be vac-formed. I've then been chasing my tail for what seems like an age on surface finish - my P38 mixing always seems to produce air bubbles which appear in the surface as you final sand! Anyway all done - It's on its way to Steve Davis at Vortex Vacforms tomorrow morning so knowing Steve we should have the first pulls in no-time!

finished plug 1 forum.jpg

finished plug 2 forum.jpg

Alan Gorham_24/11/2019 20:48:14
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1069 forum posts
129 photos

Have you got a spray gun Phil? I mean a full-size job not an airbrush or touch up gun. U-pol make a great spray on filler which looks and smells just P38 but can be built up in a few coats through the gun. It gives a great finish.

Phil Cooke24/11/2019 21:43:20
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2280 forum posts
1547 photos

Hi Al - that sounds like a useful media! - although I don't have a decent sized spray gun - and I have to ask - if its a P38 'simulant' what do you use to clean the line and gun after use as P38 in the line would be horrendous!?? Sounds like a better way of smoothly building up the layers as I've done here bit by bit by hand.

Mark Kettle 125/11/2019 08:43:46
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2470 forum posts
1492 photos

Hi Phil, you could use Holts Cataloy 'Knifing Putty' available from Halfords. It's ready mixed so you won't introduce air whilst mixing a two pack type filler. It's that fine it fills surface scratches and gives a extra smooth finish especially prior to painting or for your application Phil. Great canopy mould by the way.

Holts Cataloy

 

Edited By Mark Kettle 1 on 25/11/2019 08:45:25

Alan Gorham_25/11/2019 09:36:06
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1069 forum posts
129 photos
Posted by Phil Cooke on 24/11/2019 21:43:20:

Hi Al - that sounds like a useful media! - although I don't have a decent sized spray gun - and I have to ask - if its a P38 'simulant' what do you use to clean the line and gun after use as P38 in the line would be horrendous!?? Sounds like a better way of smoothly building up the layers as I've done here bit by bit by hand.

It's called U-POL reface - couldn't remember the name yesterday.

You thin it with Cellulose Thinners to get it through the spray gun which helps to slow the curing time - as you know P38 doesn't hang around when it starts to go off.

Once the Reface has been sprayed, the thinners evaporates and the filler starts to cure on the workpiece but stays liquid in the gun.

Basically, once you've put a coat of filler on, then you get straight on with cleaning the gun. It probably leaves you around 10 minutes to clean up so it is usable without too much panic!

Mark, the advantage to Reface over something like Knifing putty is that it is self-levelling so it takes less time to get to a good finish.

I have used it on plugs before and it is good.

McG 696925/11/2019 09:52:52
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2706 forum posts
1015 photos

Superb quality plug, Phil. yes

Are you going to start your Sabre build soon now?

Cheers

Chris

Phil Cooke25/11/2019 13:16:09
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2280 forum posts
1547 photos

Thanks Chris - the plug has been delivered to Vortex this morning.

Yes, I will be making a start on my Sabre now, finishing the Jet Provost build in parallel - that’s the plan.

Mark Kettle 125/11/2019 15:21:36
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2470 forum posts
1492 photos

Al, Reface sounds good, I have to get some.

Andy Meade25/11/2019 15:27:42
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2671 forum posts
681 photos

It's good for plugs and mold, just don't spray it on an airframe, it's heavy as hell.

Alan Gorham_25/11/2019 15:34:05
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1069 forum posts
129 photos

Absolutely, it is far too heavy for flying things. I think it's a car refinishing material so lightweight isn't in it's job spec.

Peter Garsden25/11/2019 16:57:18
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1626 forum posts
1204 photos

Great work Phil, and v interesting filler discussion. I find flour and water washes away and is not gluten free, better for sticking paper.

Anyway George and Arthur were looking a bit grey, so I brightened up their life with a bit of colour. George seems to have a bad stigmatism, and Arthur appears 'armless enough but only because I had to sand him down to get him into the cockpit. I also had to cut down the triangular sticking out to about 3/16" to flow into the fuselage. Much more former had to go courtesy of a Dremmel and tiny Tamiya Saw.

157469304025784481694.jpg

Gangrene set in below the knee

1574693197042-1668463910.jpg

All tucked up awaiting canopy

Phil Cooke25/11/2019 19:49:30
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2280 forum posts
1547 photos

They look the business Pete - very nicely painted and detailed!

Your boys shouldn't have too long to wait for their windshield - Steve at Vortex kindly sent me this picture of the very first vacform this afternoon!

first pull.jpg

Alan Gorham_25/11/2019 21:05:48
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1069 forum posts
129 photos

yes

Mark Kettle 125/11/2019 22:49:06
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2470 forum posts
1492 photos

I've just sent Steve an email requesting a canopy.

Danny Fenton25/11/2019 23:03:55
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9282 forum posts
4112 photos

Looking good, just to harp back to the UPOL P88. I thin it and spray it with a touch up full size gun, with the BIG compressor, and once thinned its nice stuff. Just like thick cellulose primer filler, which funnily enough is exactly what it is With models we tend to sand much of it off, and indeed that is what I do. Its not a polyester base its cellulose. And no heavier than conventional primer just thicker!

408.jpg

Cheers

Danny

Jez Billington01/12/2019 20:35:29
9 forum posts

You guys are way ahead of me on the JP 1.5 build.

The wings are done and waiting to be hinged.

Started the fuselage build a few days ago. To make the assembly a little easier, formers F3,4 &5 can be glued to one fuselage side while it’s flat on the board. The fuz sides within this area are parallel when viewed from above. This means you can check each former is perfectly upright and longitudinally square when gluing. Like Pete, I had fun and games clamping the nose section whilst gluing and ensuring squareness. Not easy, but the small steam cleaner I borrowed from ‘er indoors’ helped persuade the sides into position.
The only mod to the fuz so far has been the enlargement of the battery box to take a 3A LiPo. This is to power the airborne Blackpool illuminations - nav lights (wingtips, nose and rear fuz).
Next step is the addition of balsa block - much of which I predict will end up as shavings!

Jez Billington01/12/2019 20:41:00
9 forum posts

Chris Barlow02/12/2019 01:03:08
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1858 forum posts
1266 photos

Nice work painting the pilots Pete, they look very cosy in the cockpit!

Can't wait to see it with a canopy over them. yes

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