Mini Javelin (oz11799)

About this Plan

Mini Javelin. Radio control funt-scale model, based on the Gloster Javelin interceptor. For twin IC ducted fans, and 2 channels.

Note article includes full details of how to build your own ducted fan units, from scratch.

Quote: "Follow Chris Golds' 57 steps to twin Cox .020 ducted fan fun!

Conventions:

1. HWC - Hot Wire Cut (Mine-is 10 year old MFA 39 inch and still on the original wire!)

2. Foam Block - Blue foam approx 4 inches thick for soft insulation from builders merchants. White foam, usually 2inches thick, very much softer and lighter than blue. Ask for damaged panels - they are usually much cheaper than sound ones.

3. Cut Block - foam marked out and FIWC (or sawn and sanded) to exact size- ready for pattern cut-work.

4, Epoxy - 5 min, variety and used very thinly: keep the bottles hot on radiators and they will mix easier, spread thinner & cure quicker.

5. PVA - ordinary Eve-stick Resin-W type, water based wood glue,

6. Paste - 65% INA. 35% tap water-plus some red food dye lie show you where you have covered and how thickly(

7. Balsa - that strange. soft light wood from South America - someone gave me some once! KEEP IT SOFT - whatever thickness.

8. For Block Cutting - make yourself ha, vertical posts from some aluminium channeling (like used for removeable_shell brackets) and ply, with metal brackets to allow you to screw onto worktop.

9. lb pin/nail patterns to cut blocks use 2 'Itch nails had clean. Drill each pattern to accept pattern nails (PN).

10. BP - Brown Paper, medium light for wrapping parcels: shiny side and matt side. nal shiny both sides! Paste only matt

11. To BP - to apply Brown Paper, cut M panel size and paste matt side: allow at least 30 seconds for paper to expand. That paste foam and stick paper on. NB: Keep your lingers dry and dean or you will 'pick-tip' the paper. When all of a panel is done, paste-alt over. BEWARE shrinking and ability to warp. Hang up to dry so that all sides dry together.

Fuselage:

1. Cut block to WXYZ in 4 in thickness, mark C/L all round.

2. Make patterns C and D from scrap 1/16 or thereabouts) ply. Pattern nail to block and HWC out the duct halves. NB: blue foam. Use a heavy narrow weight to keep block from moving. (W)

3. Next, HWC the outside cut and you have a hoftom half. Mark it!

4. Turn block over and repeat to achieve a top half. Mark it!

5. Make patterns A and B and cut a suitable piece of Blue Foam 4 x 4 x 7 in long. Mount patterns on block ends. Cut notch in A down to 1/4 in from foam surface.

6. HWC out the conical centre of half nose block by resting wire in notch and cutting inside of B.

7. HWC outside of A and B, you now have: [see drawing]

8. Repeat for other hall of nose.

9. Lightly epoxy halves together.

10. Sandpaper (medium, then fine) to the Correct symmetrical Section as per plan..."

Quote: "Mary, Another plan and an article that may be of interest: Mini Javelin by Chris Golds - 25 in ducted fan model for two Cox TD 020s but would work well with today's EDF outfits. One of Chris' famous foam and brown paper models, this one with step by step instructions from May 1992 Radio Modeller. I've included a better version of the main image as the paper was so faded the one embedded in the article ended up a bit washed out during the clean up process! All the best,"

Direct submission to Outerzone.

Supplementary file notes

Article.

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