The J69 rocket plane

Man of Honour
Man of Honour
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3 May 2004
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Kapitalist Republik of Surrey
Well the deliberately misleading title got you in here; I will now break the news that it's not a real rocket plane, but a model :D

Background: So the history of this stems back to university days. I'd built a prototype jet engine in my final year and part of my end-of-year display included all sorts of jet and rocket bits including my jet scooter and one of those little finger-sized scooters fitted with a Jetex rocket. After university I still had the rocket engine and spotted a flying model kit of a WW2 Messerschmitt Me 163 rocket plane that could be fitted with a Jetex. Perfect. So I built it in about 2003, it sat in bare tissue for a couple of years and as I started to rebuild my Ford Anglia I decided to build the rocket plane in matching livery of bright red plastered with 69's. I sprayed it red but never completely finished it. This is where it was at up until a few nights ago, minus the dust:

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As with a lot of these balsa frame and tissue kits, they are quite close to the original aeroplane and all of them claim to be able to fly. Coupled with the fact that the original plane was not stable and that these kits are quite fragile if they hit anything, I ended up breaking it when I went out for a test flight and it sustained some damage on the wing. I repaired the strut and patched in some fresh tissue:

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My original plan for the 69's was to print them out on photo paper and Spraymount them on. I'd been debating for ages how best to cut them out, but I used a compass cutter in the end, with a wad of card under the point so as not to puncture the 69:

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This gave me my 69's, which I printed out on gloss decal paper:

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The plan was one on each wing and one on each side of the tail fin:

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So far I've glued the nose on and stuck down the decals:

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Next up is to do something with the cockpit. I'd thought about a Lego man in there, but I think it'll work better with a printed cockpit glued in. The front end also doesn't quite look right at the moment, so once the cockpit is sorted I'll have a look at maybe some white stripes around the nose cone to break the lines up.

Sadly, the Jetex rocket is long lost, so to make this fly I'll have to weight it with something. I'm not sure if I'll buy another Jetex because they never really worked properly. You were never quite sure if it was going to light, badly burn your arm/face or explode in your hand :D
 
What about those build your own rocket kits with solid fuel booster things... ? Or is that the same thing as a Jetex rocket?
 
It needs a 1940s-style, semi-naked pin-up painted near the cockpit.
Plan.
.... and the number of kills under the cockpit.
Plan. Nice one :)

What about those build your own rocket kits with solid fuel booster things... ? Or is that the same thing as a Jetex rocket?
I think you mean the ones made by Estes and the like. They would probably be ideal. Jetex were reusable metal rocket engines that you could buy in the 50's. I managed to score one in the late 80's from a local chain of model shops, which must have been old stock because it was an original one. You used to load it up with solid fuel pellets, poke a bit of fuse wire down the hole, light it and *hope*. I only had it run a couple of times and it was completely unpredictable. Sometimes it would light, other times not, then it would shoot hot smoke down your arm or in your face and the whole thing was over in a few seconds.

Seems to be a basic Wikipedia page about them:

http://en.wikipedia.org/wiki/Jetex_engine
 
I seem to remember the solid fuel engines for model rocketry having electric ignition which depending on your launching method might be awkward.

Also NEEDS SOME YELLOW!!!!!
 
They do, but Jetex engines have a bit of fuse wire that you light :D

Yellow could be the way forward. Maybe yellow wing tips.
 
Now you need a weather baloon and a gps tracker. Then you can launch it into space and let it fly down and take pictures.

Ah my territory. I believe the glider is not allowed in the UK from such altitude, and even if it is sadly the North Sea may make retrieval rather tricky. As even on a very calm low gulf stream activity day when launching from Cambridge you can end up very near the coast with a parachute. A UK group did go to Spain to do this though.

This thread also reminds me I have a tin somewhere with a Jetex, some fuel pellets and a few Estes rocket motors. Might have to dig it out :D

Sadly I don't have any Rapiers left. Which were like Jetex, but were single use and in a cardboard tube. Slightly better though I think. They were made in the Czech Republic, and I believe were stopped being produced in 2010 due to their new classification as fireworks.
 
Ah my territory. I believe the glider is not allowed in the UK from such altitude, and even if it is sadly the North Sea may make retrieval rather tricky. As even on a very calm low gulf stream activity day when launching from Cambridge you can end up very near the coast with a parachute. A UK group did go to Spain to do this though.

This thread also reminds me I have a tin somewhere with a Jetex, some fuel pellets and a few Estes rocket motors. Might have to dig it out :D

Sadly I don't have any Rapiers left. Which were like Jetex, but were single use and in a cardboard tube. Slightly better though I think. They were made in the Czech Republic, and I believe were stopped being produced in 2010 due to their new classification as fireworks.

Damn it, Spain isn't that far though. He should give it a try :P.
 
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