Ziz (oz15270)

About this Plan

Ziz. Free flight sport model. Parasol wing layout. Wingspan 50 in.

Note this is a low resolution plan. Greyscale 80 dpi.

Quote: "Fancy a stable F/F job, suitable for R/C conversion? Build Peter Fisher's 50inch sportster and go fun flying.

WHAT'S A ZIZ? we asked. All we could think of is what happens when one's feet are put up after Sunday lunch (assuming no model flying is in the offing, that is) and eyes are allowed to shut, but this did not seem right.

The Ziz, replied Peter, is of course named after the gigantic bird of Hebrew myth. It was the King of all birds, and was said to be a distant relative of the better known Roc, which in legend was said to feed on young elephants. Truly a most formidable fowl!

Despite this ancestry, the Ziz offered here is rather more docile. Peter's original, powered by a Micron 0.9 cc diesel (rather a nice engine, we thought) first caught our attention at a Chobham flying meeting a while ago. A parasol wing with plenty of area, and generally straightforward construction make it an ideal sport model, perfectly suitable for conversion to R/C if you've a mind to. By the way, Peter's original is equipped with a couple of rather special pilots. Perhaps we'd better let him explain:

The miniature mice pilots are both ladies and are 1 inch in overall length, excluding their tails. They are both fully dressed for Old Warden Air Displays, and one has goggles. They were made for me by Mrs Bader, who at one time ran a small model and craft shop in Wellingborough. Usually she made only very superior, large scale (about 10 times full size), fully dressed mice. The pilots in the Ziz have always done an excellent job of piloting this machine!

The Mrs Bader referred to is, of course, the wife of Group Captain Sir Douglas Bader. We regret that we cannot offer plans of her handiwork - but the Ziz is here, with Peter's instructions below. To further speed you on your way to the flying field, we are able to offer full size component pattern sheets on self-adhesive paper ready to stick onto the balsa, thus to avoid the chore of marking out. These are available for £1.10 inclusive of postage. Quote number PAM 1521 when ordering. But let's get on with the construction. Over to Peter again:

Down to business: The Ziz has been designed for the model aeronautical connoisseur who appreciates traditional constructional techniques, applied to a carefully designed and extensively tested semi-scale vintage style sports F/F or R/C model.

The airframe has been stressed so that engines up to a maximum capacity of .19cu. in. can be used; but excellent F/F or lightweight R/C characteristics are obtained with good 0.9 cc or larger engines. The special aerofoil gives excellent penetration for R/C while retaining suitable characteristics for F/F.

Fuselage: Cover the plan with a piece of wax paper, thus preventing the parts from sticking to it. Pin the 3/16 x 3/16 longerons in place followed by 3/16 x 3/16in. uprights, 3/16 x 1/8 diagonals and formers F1, F12, F13, F14 and F15. Build the second side over the first. When dry, remove from the plan and sandpaper to ensure identity; then separate with a double-edge razor blade. Assemble the sides over the plan elevation starting with the parallel section F2-F8 composed of formers on the top and 3/16in. x 3/16 spacers below.

Draw in the tail and cement to a scrap shaped upright. Check alignment frequently. Fit F10, followed by F9 and F11 with complimentary lower spacers; finally the rear 3/16 x 3/16 spacers. Cement the 1/8 x 1/8 stringers and the cabin floor in place..."

Direct submission to Outerzone.

Quote: "Hi Mary/Steve, Please see attached an article and plan for the 50" wingspan Ziz, that appeared in Aeromodeller, August 1986. This is another interesting design by O.F.W. (Peter) Fisher. The plan I scanned from the Aeromodeller article which I increased in size, so that it can be printed at 100% and I cleaned it up. Although the plan is not perfect, it is totally adequate for anyone wanting to build the model. I know of no other source for this plan. All the best,
Mark"

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