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Member postings for Ron Gray

Here is a list of all the postings Ron Gray has made in our forums. Click on a thread name to jump to the thread.

Thread: Who Else Wants a 63" Lavochkin La7 kit?
31/05/2020 22:28:43

Thanks John. Topcoat paints should be here by the middle of the week so hopefully have it all painted by the end of the week.

Wildflower meadow is great as I can use the paths through it as an fpv course for my quads!

31/05/2020 21:49:12

I've been asked about why I'm using the aluminium tape. Well the main reason is that when I weather the finish in some areas, like the hub blisters, the underbelly radiator and the canopy I will rub through to the base and I want it to look a bit like metal. The other reason is that it is easier to make impressions in it to look like fixings, as can be seen on a couple of the photos above of the fuselage service panel.

Of course the whole thing may end up looking like a dog's dinner, we shall see!

31/05/2020 20:33:54

Some progress!

The fuse got covered in laminating film, the most difficult bits being the concave curves on the wing fillets.

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I decided that the under belly radiator / air intake as shown on the plans and the moulded mouth piece provided were a little on the large side so over to the 3D printer. The advantage of doing it this way was that I could incorporate the wing fixing bolts which otherwise would have got in the way.

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Then covered with aluminium tape (will be primed and painted).

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Following on from the aluminium tape applied to the wings to simulate the access panels, I did the same thing for the fuse, before starting the priming works.

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'scuse the crocs in some of these photos!

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A close look at the fuse service panel.

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I then spent many, many minutes masking the canopy and then priming it.

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Other jobs completed, no photos, the wing has been primed and rubbed down. The fuse has had the aluminium tape treatment to the forward section (the full size had metal panels forward of the cockpit) and new gun blisters were 3D printed as I felt that the ones supplied were a little on the large side.

The problem I now have is that the finish is too good! Now that I have rubbed down the primer the surface is silky smooth so I've got to think of a way to 'distress' it a bit, to make it look like it has been in many battles.

The primer has also helped me locate areas where the laminating film was not fully shrunk / ironed down. Whilst I really do like using the laminating film, being clear and very glossy it is sometimes difficult to see wrinkles, but the primer makes them stick out! Fortunately there were very few and were easily got rid of with the sealing iron.

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During a break in proceedings I took this shot of our wild flower meadow which we planted in place of some of our lawn last year.

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Edited By Ron Gray on 31/05/2020 20:36:37

Thread: Paid-for flying lessons
31/05/2020 13:58:07

Chris, in what part of Norfolk do you reside?

Thread: Top Flite P51 - 65" span
31/05/2020 07:03:16

Peter, for your throttle pushrod tried Bowden cable instead as you can route that round obstacles.

Thread: Warbirds Replicas P51 Mustang
31/05/2020 07:00:31

Look at Danny Fenton’s thread, Hawker Nimrod, to see what he tried on that build (including Flite Metal).Here

Edited By Ron Gray on 31/05/2020 07:20:14

Thread: Different shades of white, Oracover (Profilm)
30/05/2020 06:45:24

Not quite any colour, I tried various stores to get some American WW2 dark blue to match that on my Bearcat and they couldn’t do it.

On the different coloured film, sunlight can have an effect, so older rolls may have faded.

Edited By Ron Gray on 30/05/2020 06:46:45

Thread: Who Else Wants a 63" Lavochkin La7 kit?
28/05/2020 20:20:56

First job today was to finish the wing covering off, covering always seems to take me ages!

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But then I did do other things like fit the wheel wells and then onto some 'scale' detail, the silver you can see in the next photo is aluminium tape representing the two service panels in the wing. I also sprayed some red primer onto the wing tips to see how obvious the film join is (not too bad as it turns out).

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Mustn't forget the root LE air intakes.

I have been pondering over the tailwheel. I certainly wasn't going to add too much weight by making it retractable but I do like steerable tailwheels, so that was the plan. But like all good plans they can be changed and at the last moment I did just that and made it into a semi casting one; semi in that the wheel can rotate through about 15 degrees. Not tried one before but thought that it may give a bit of ground handling unlike a fixed one.

I cut through the balsa undersheeting and let in the ply base.

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And this was sanded in situ before fitting the tailwheel assembly. I used a piece of nylon tube as a bearing for the wheel.

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Assembled and glued in place.

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And some final balsa sculpting to finish off the underside of the fuse.

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Whilst looking at photos of the full size I realised that there is a fillet between the fin and tailplane so I've stuck in some triangle strip which will be sanded to a concave profile tomorrow.

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So, with a bit of luck I will cover the fuse tomorrow and then some more detailing (not too much as this is only a sport scale model). But the paint phase is rapidly approaching so I better hurry up and decide on the colour scheme. I can probably get on with priming it using Halford or similar rattle cans as I can get some delivered to me (I'm still in lockdown mode).

Thread: Peter Miller asks what next?
28/05/2020 19:57:57

Or 1 1/2 times and a nice Laser!

28/05/2020 12:51:30

Oh yeah!

Thread: Who Else Wants a 63" Lavochkin La7 kit?
28/05/2020 07:17:47

@Peter - very pleased with the way it turned out!

@Tony - I got mine from Wordcraft, sales@wordcraft.co.uk. I use it with 3D printed parts for measuring, amongst other things, wing incidences.

27/05/2020 22:18:20

The tailplane was checked for level using my Smart Angle and it only needed a couple of passes with the sandpaper to get it spot on.

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The rudder was next and that completed all of the major parts assembly.

More balsa infill pieces, this time to the fin / fuse junction as well as more to the wing.

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I also sprayed some primer onto the cowl moulding to get a better idea on the finish

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And the obligatory trial fit.

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And finally, the first piece of laminating film goes onto the wing. My roll of film is only 300mm wide so there has to be a join which will be feathered so hopefully won't be that obvious.

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Edited By Ron Gray on 27/05/2020 22:27:23

Thread: FrSky Major Update for most TX and RX
26/05/2020 19:48:00

Nice work Tim, thank you.

Thread: Boulton & Paul Defiant
26/05/2020 15:21:22

Funnily enough the pilot could fire the turret guns and they could face forwards albeit at a lowest angle of 19 degrees. The guns would fire either side of the cockpit and were designed to be fired ‘zero deflection’ via a trigger in the cockpit. Trouble was this technique wasn’t taught!

Thread: Who Else Wants a 63" Lavochkin La7 kit?
26/05/2020 11:05:58

Balsa blocks were stuck to the cowl using Gorilla Glue with the wing in place (masking tape to prevent sticking to the wrong parts!) then sculpted using permagrit block then final curves using sandpaper around various sized bits of dowel and final sanding with very fine sandpaper on finger tips (can feel the edges).

Thread: HK Paramotor
25/05/2020 19:57:19

Hi Matty, I bought one last year and there is certainly a technique to launching. The main thing is to get the canopy 'inflated' which can be achieved with a sharp tug on the lines but watch out for throttle control as over enthusiastic use can lead to some 'interesting' things happening. Not my everyday use model but good for a laugh and relaxing flying.

Thread: Who Else Wants a 63" Lavochkin La7 kit?
25/05/2020 19:52:01

Have gone ahead with the balsa stuck to cowl approach, needs final sanding and then glassing.

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Thread: Weston Capiche 140 Refurb
25/05/2020 15:01:52

Good reactions and recovery Adrian, looks like a relatively simple repair job.

Thread: Who Else Wants a 63" Lavochkin La7 kit?
25/05/2020 11:35:20

Thanks for your input to Bob, much appreciated as you guys have already gone through the process. I'm still waiting for eta glue to set on mine before I decide if sticking to the cowl is the way to go! I did also think about 3D printing that section instead of balsa but it's quite a complex shape so probably a tad advanced for my basic 3D design skills!

25/05/2020 11:02:53

Thanks Tim. With the blocks stuck to the wing is there a problem when fitting the wing as that has to go in at an angle? I don't think I should have a problem with wiggle room as the cowl will be fitted before the wing. Still not 100% that I've done this the best way but I can always cut it off later.

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