DH Vampire 1/5th Scale prototype - Kit

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Mon Jun 20, 2016 2:52 pm

Progress with the canopy. At least all the parts I've made will be able to be used with my next, much improved unit. I've done some tests with 560 Adhesive and I think it will be an alternative for joining around the base.
Canopy Tail Cone.JPG

Canopy Tail cone and Rack painted..JPG

I added the canopy tail cone and the rack that is exposed on the starboard side when the canopy is open. Its nice to have the unit looking pretty much as it should.
Canopy Profile.JPG

One thing that has become obvious is the variation in canopy shape in full size, something I can not explain, so I have what I have.
IMG_2196 (Small).JPG

I have also been playing around with some rudder pedals but they are not complete and I have started a seat as well.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Wed Jun 22, 2016 6:34 pm

Things Ive done over the last couple of days. All a little disjointed but all have to be done.
The seat is a Vampire style seat as opposed to an absolute replica and of course very little of it will be seen, but it’s all part of the fun. Finishing yet to be done and its made from 0.4mm ply, 3.0mm Balsa and some writing paper.
The tyre mould is is shown here set up for the first half pour of Silcone. It's bedded in Klean Clay and has a clear plastic border band. See the completed mould below - with the seat.
Tyre Mould part A.JPG

IMG_2220 (Small).JPG

The mould for the Nose Wheel Tyre is now completed and curing. I may try vacuum filling so as to avoid air trapping. I will be using a solid but flexible Urethane partly due to its ease of use and partly due to the trailing link style nose leg taking most of the landing and at-rest loads. It will also be useful nose weight.
I’m taking a break from it over the next few days so it’s nice to have this much done.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Fri Jul 08, 2016 3:50 pm

We’ve been away for a while but back on deck, however I came home from Australia with a nasty cold and then the good news that my Rotator Cuff shoulder surgery is scheduled for July 26th which is just peachy as it will put me out of action for some time. So now I have to see how much I can cram in before the event.
Nose wheel tyre 1.JPG

So first off I have moulded my nose wheel tyre as a result and after a couple of false starts with filling and venting I have two working examples. I turned up the Acetal hub inserts and tried initially dispensing the urethane by gravity which was a fail, then via a large squeeze bottle which was okay and finally by using three 60ml Syringes which worked best.
Nose wheel tyre detail (Small).JPG

Nose wheel tyre detail 2.JPG

The product needs to post cure for around 7 days to get past it’s 80 per cent initial cure state. So far, so good.
IMG_2508 (Small).JPG

I have also done a little more on the seat and adjuster, however I will leave all this detail stuff and get on with painting wings etc. The details can be attended to whilst I am in recovery mode.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Thu Jul 14, 2016 8:13 pm

I finally got to making the hub for the nose wheel tyre. The detail is different from one side to the other as you see.
2 part Hub.JPG

The port side has two reverse dome cavities. The tyre valve can be one or the other it seems. The starboard side is a complete mystery to me. It seems to have been a three piece item and there is some sort of clip engaging the outer rim to the centre portion of the hub.
Wheel complete Port side.JPG

Wheel complete Starboard.JPG

The brakes were on the main wheels so it is not related to brakes in any way.
Three wheels at last..JPG

Nice to have it on three wheels after all this time.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Wed Aug 17, 2016 11:00 am

Another month and not as much done as I would have liked as I spent some time with much needed maintenance on my 12 year old Miles. All for the good and that is now back in the air.

However to the Vampire and I have been working away at getting the wings ready for paint and have at least achieved that. I’m pretty pleased with the way the detail has come up and am looking to get a “hint” of rivets as opposed to them being very obvious. De Havillands made an exceptionally good job of flushing and filling the wing skins. Most of the detail is on the underside.
IMG_1651 (Small).JPG

IMG_1653 (Small).JPG

IMG_1652 (Small).JPG

Also making progress with the seat.
IMG_1658 (Small).JPG
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Wed Aug 24, 2016 9:02 pm

Some progress on the underside of the wings with the silver patches to take the New Zealand Serial. As detailed before the aircraft had the RAF serials crudely painted over and the NZ numbers applied via spray through stencils.
IMG_1660 (Small).JPG

IMG_1667 (Small).JPG

On taking a closer look all the numbers are somewhat erratic and my guess is that the guys in charge back in 1956 cut their own to size and to a degree to their own style. So, I have now cut the card spray masks for the lower wing surface.
However, the version already applied to the booms is going to be adjusted as there is a pretty stark difference between the “point perfect” version I have applied and the real thing. The joys of it all!
IMG_1663 (Small).JPG
IMG_1665 (Small).JPG

I’ve added the fuel filler caps and also positioned the small fairings over the inboard speed brake hinges. Don’t ask me why there is no fairing on the outboard hinges, but all Vampire versions are the same.
IMG_1670 (Small).JPG
IMG_1672 (Small).JPG

I also progressed to the Dark Sea Grey and will be making the masks and spraying the Dark Green tomorrow. I do believe I can see the end.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Mon Aug 29, 2016 9:17 pm

So, as you see the Dark Green is all done and a lot more as well. I kind of held my breath over the stencils and had to juggle them a little but according to the available photographs I have its pretty much on the button. I have other various small stencils to apply and I have to take the inner doors off the main legs to complete the number 2, the last digit of the serial.
IMG_1693 (Small).JPG
IMG_1691 (Small).JPG

IMG_1694 (Small).JPG
IMG_1695 (Small).JPG

There is still some way to go but I’m pleased enough to be happy with a glass of wine in my hand tonight – and its only Monday night!
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Tue Sep 06, 2016 1:41 pm

Steady progress with some stencil work. I just love the instruction to go around the other side of the wreckage to release the pilot! However, that is not all. There is more to come.

IMG_1707 (Small).JPG
IMG_1708 (Small).JPG


Inner doors done.
IMG_1706 (Small).JPG
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Sun Sep 18, 2016 3:18 pm

I have been plugging away at some detail work that needs attention. I fitted the inner door after painting the Serial number. No retract test for fitting done yet and they may have to be packed out a little as per the full size. Time will tell. I have also secure the brake line connector via its purpose made bracket.
Inner door detail.JPG

With the wings painted I had no other choice that to fit the nav light lenses.
Nav Light lens masking 1.JPG

Nav Light lens masking 2.JPG

Nav Light Lens fitted.JPG

After a bit of fiddling they look OK. Tricky little sods to mask as the black is painted on the inside and they are a flush fit with the wing skin – well they are supposed to be! Some touch up work to be done in that area yet.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Sat Sep 24, 2016 2:41 pm

First time with the wings on painted and on it's wheels. There is hope yet and now I have to deal with the (silver) touched up leading edges, for some peculiar reason only on the Grey areas and on the undersides.
IMG_1730.JPG
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Sun Sep 25, 2016 9:27 pm

A long time ago I made a mould for making the hangers that were used to hold and hinge the cannon bay access panels in place along their top edges. The slots have been cut in the fuselage forever and today I found I had four little mouldings made. All that was required was to check the fit and paint then set them in place. I also completed the gun troughs in the lower front panels by adding some 4mm ID tube for the barrels.
Cannon Bay Hanger.JPG


Gun troughs and Cannons.JPG

As part of all this I had to strip out the tanks to get access and make sure all was clean and tidy ...and it needed a vacuum.. and in the process I found that I could relocate a "C" size 5 Cell battery from just ahead of the CG cg to right up at the front under the nose cap. The battery is for the hydraulic retract system and this is good news for the CG situation as a couple of people I've spoken to who have built single seat Vampires have had to add 8 oz or more of ballast to the nose. It really is a stubby little snout! I regret I'll be struggling keeping it under 15 KG which was a target and being just a little over is no consolation. If I took the time to make epoxy booms and fins it would probably reduce the all up weight by a reasonable margin. That's a fall back position for another day!
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Tue Oct 04, 2016 8:26 pm

I’ve spent some time over the last few days on some final fitting of the various parts around the nose leg and the door assembly. I have ended up with an understanding of the frustration of the ground staff in setting up the same full size assembly! Almost everything that is adjusted has impact in some way on something else and miniaturising it has compounded accessibility issues. Patience is a virtue so they say.
IMG_1742.JPG

The hydraulic system has tested fine after a long rest, apart from a little heart flutter at first as I finally realised that by reducing the throw of the servo operating the spool valve, that “pulse” value (or what ever you call it) had been reduced via the end point adjustment on the TX to the point that it wouldn’t trigger the little magic box controller. After re-jigging the servo horn set up all works fine. The system is very robust and the testing of the hydraulics over the last couple of the days has been very encouraging.
IMG_1743.JPG

On the way I found I could relocate the hydraulics battery right to the front end. Any way you look at it, the model needs as much useful weight up the front so the more useful the better.
IMG_1744.JPG

Good progress
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Wed Oct 26, 2016 9:15 pm

It's been a frustrating few days as I rubbed back all the boom markings and put them in the right place and with some very non-standard font as per the pics I have.
Boom markings final.JPG

I also fitted the nose door properly, so step by step it's getting there. I have also finally completed all the spray through stencils.
Vampire Nose door final fit.JPG

Lower Fuse Stencil Starter.JPG

Lower Fuse Stencil Fuel Drain.JPG

Some parts arrived via the Polar route from Germany for my trusty Behtoec J-66. I bench tested it today so now I have a dilemma as I have a lovely 120 size Turbine from my friend in Australia, Neil Giggins. He makes a quality product, the downside of this one is that it's 500 grams heavier that the 66 but of course it has around 50% more available power. They both fit which allows me the luxury of mixing and matching. I've pretty much come to the conclusion that it's final weight will have it fall just outside the F4C Rules, which is a shame.
On a lighter note, my daughter was scouring though boxes of family photographs and came up the the B & W image of your's truly peering into a Vampire cockpit at a 1956 "Airforce Day", Whenuapai Airbase, which is in Auckland for those who will not know.
Vampire Airforce Day 1955 or 56 (Medium).jpg

Quite prophetic in it's own way and I guess you could say I've been building it all that time! Note the P51 in the background.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Thu Oct 27, 2016 2:05 pm

I thought those interested in the Stencil process might like to see these pics so here are some images of the system The un-used "PULL AND TURN" mask gives an idea of the laser cut card. This font is 2.5mm high.
Pull out and Turn.JPG
Pull out and Turn.JPG (106.81 KiB) Viewed 7651 times


Below, the "PLUMB BOB " Stencil was applied to the Leading edge of the Tailplane and is shown here being applied to the nose of the Port wing root air intake.
Plumb Bob painted.JPG

You can see how little over-spray there is on the paper masking tape, an indication of how little paint was applied.
Plumb Bob Final.JPG
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Thu Oct 27, 2016 2:18 pm

I made the fixing plates for the Boom rubbers. The rubbers are cast in urethane and done a long time ago. The bumpers are screwed to contoured plates, then the plates screwed to the underside of the boom. I used 1.0mm screws from opticians supplies and filed the heads down.
Boom Bumper Rubber 1.JPG

Boom Bumper Rubber Final.JPG

On the port boom I also fitted the tailcone complete with light fitting and the rudder trim tab. The tab needs it’s “NO HAND” stencil sprayed but I’ll wait until the starboard tailcone is done … tomorrow.
Port Boom tail end complete.JPG
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Mon Dec 12, 2016 9:01 pm

Two and a half weeks before I can get out of my sling ..rotator cuff surgery ..... but at least I can do a little with both hands now so I managed to make a couple of antennas - one for the port wing tip underside and one for the port boom. They plug in to silicon seats so can be removed and so not get the way or get broken off.
IMG_1793.JPG

IMG_1789.JPG

IMG_1795.JPG

I also decided to try and finish a little Doug McHard designed ME109 rubber scale model. Really nice to work with balsa in this simple form and things happen pretty quickly . Time will tell how it flies ...maybe at the Nationals, maybe not.
IMG_1796.JPG
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Thu Dec 15, 2016 5:24 pm

Starting to fill up a black hole with details painted black. Not a lot of this will be seen, particularly with the pilot in situ! Never mind, its all part of the game really.
IMG_1798.JPG

IMG_1804.JPG

IMG_1805.JPG

The lowest image is what you will see from the cockpit sill, however instrument panel block out the middle section.
I have not a clue what the heel boards were made of but they do not look metallic in any of the pics I have, so plywood they are. There are some cables to be run - dummy of course. Then on to the control column.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Thu Dec 15, 2016 5:24 pm

Starting to fill up a black hole with details painted black. Not a lot of this will be seen, particularly with the pilot in situ! Never mind, its all part of the game really.
IMG_1798.JPG

IMG_1804.JPG

IMG_1805.JPG

The lowest image is what you will see from the cockpit sill, however instrument panel block out the middle section.
I have not a clue what the heel boards were made of but they do not look metallic in any of the pics I have, so plywood they are. There are some cables to be run - dummy of course. Then on to the control column.
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Wed Dec 28, 2016 3:21 pm

I went some way to completing the pilots seat before going on a break down country. I have yet to attach the lap belt.
IMG_2909.JPG

Still more dark coloured items in a black hole.
IMG_2906.JPG

Not too much will be done now until after our National Championships are done and dusted. I've chosen not to compete in R/C Scale due to my less that fully functioning left arm after shoulder surgery but I get to be Contest Director and most likely a judge. Lucky me!
DH100
 

Re: DH Vampire 1/5th Scale prototype - Kit

Postby DH100 » Sat Jan 14, 2017 8:58 pm

Back on the job with a one arm handicap. It would have been oh so nice to have had a simple pole with a handgrip, but such is not the case as you can see. There is still some tidying up to do and the brake lever to add as well as cables and wiring from the yoke.
Control column base - Copy.JPG
Control column base - Copy.JPG (80.28 KiB) Viewed 4439 times

Control column basic assy.JPG

Control column yoke - Copy.JPG

IMG_1850 - Copy.JPG

Control column without brake lever.JPG

All the rest of the cockpit is such a jumble of bits and pieces and there is so much of it it’s become a little daunting. I’m still about 6 weeks away from any major lifting.
DH100
 

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