Ruter-Ess (oz2602)


Ruter-Ess - plan thumbnail image

About this Plan

Ruteress - Ace of Diamonds. Control line combat model. Swedish design.

Quote: "Staffan Larsson's RUTER-ESS.

WHILST VISITING the Southern Gala at RAF Odiham this year, we noticed a relatively new shape to be seen in the Combat circles. Retaining a 'standard' Combat wing the tailplane was mounted on a curved trailing edge extension as opposed to a true flying wing or the popular flying elevator type. The example examined was being flown by Richard Wilkens who showed a really tight turning capability, in fact one of the tightest yet seen. This Swedish model was apparently a 'secret weapon' as the flyer was rather loath to give much detail, apart from the engine (obvious) and name 'Ruter-ess' (on the model).

Not only to ourselves was this combateer impressive, as since Odiham we have received a steady flow of enquiries for plans. The design comes originally from Staffan Larsson and Roger Holmberg of Sweden and was imported during a tour of this country. Ruter-ess (meaning 'Ace of Diamonds') is a development of the earlier 'Spader Kung II' (Second King of Spades) and has proved extremely successful in Sweden throughout 1967 and, of course, in this country since introduction.

After much research and correspondence we now have the plan for those who have patiently waited. Although fairly conventional in areas, to knowledgeable eyes the construction is anything but usual, the wing being based on a 1/16 in sheet full depth spar and box leading edge. Giving extreme lightness this kind of construction, when carefully carried out, is deceptively strong; but probably not quite up to Dominator (oz2605) or Warlord standards. Using carefully selected materials the original models turned the scales at 12-13 oz all-up, which for a 2.5 cc size model makes for the crisp performance delivered.

Construction. Select the grades of wood shown and cut out wing ribs and full depth spar ensuring accurate joints for strength. Assemble ribs to spar, split trailing edge pieces and 3/16 in square leading edge. It is suggested that a PVA or similar adhesive is used so that there is time to make the wing absolutely straight. Whilst this is drying, the engine bearer assembly can be made up.

Note cut out and hole for bellcrank retaining dowel. The leading edge sheeting can now be attached pinning in position. Care here will reward with great strength. Note also that this sheeting is best made continuous from tip to tip (not as shown on the plan)..."

Direct submission to Outerzone.

Update 31/12/2016: added article, thanks to RFJ.

Supplementary file notes



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Ruter-Ess - completed model photo

  • (oz2602)
    by Staffan Larsson
    from Aeromodeller
    December 1968 
    35in span
    Tags: IC C/L
    all formers complete :)
    got article :)
  • Submitted: 17/03/2012
    Filesize: 1232KB
    Format: • PDFbitmap
    Credit*: MikeNelson

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