Clarion (oz16459)

About this Plan

Scientific Clarion. Free flight sport rubber model. Wingspan 30 in.

Planfile includes full build instructions.

Quote: "Before you begin the actual construction of any model you should study the plan carefully. Read the instructions and check them with the plan so you will understand thoroughly just how to go about constructing the various parts. The printed pieces should be cut out as called for with a Scientific Model Knife or a razor blade which has been broken to a pointed tip. If you use a double-edged blade be sure you protect your fingers by putting adhesive tape or something similar over the top and bottom edges where you hold the blade with your fingers.

You should have a flat surface such as a drawing board to pin the plan to, as all the parts are made directly over the plan with waxed paper in between the plan and the work to prevent them from sticking together. The wood is held in place with straight pins until the cement is thoroughly dry. Never pin through the wood but place the pins at convenient intervals along both sides of the members.

The fuselage is generally made first by constructing two identical sides as shown on the side view and then joining them together with crosspieces as shown on the top view. Pin the longerons in place first and then cut the vertical and diagonal members. You can cut them two at a time for accuracy. Be sure the ends are square and cement the members in place. Allow the cement plenty of time to dry before you remove the work from the plan. It is usually more accurate to assemble the fuselage sides by first inserting the crosspieces in the center or widest portion of the fuselage when referring to the top view. Be sure everything is square before the cement sets.

Join the rear and front ends together and then the remaining crosspieces. Cut out the bulkheads or formers and cement them in place. Add the stringers. The rear hook should be fastened to the bulkhead before it is cemented in place. The nose block should be shaped approximately to size and then cemented to the front of the model and finished off. Bend the landing gear wire and attatch it to the model.

The propeller should be shaped according to the pattern on the plan and the photos. Sandpaper the blades smooth and balance it. Sandpaper the heavy blade until both are equal. Slide the nose plug, two washers, and then the propeller on the propeller shaft. Bend it over as shown and cement it in place.

The tail surfaces are very simply made the same as the fuselage sides. Place waxed paper over the plan and pin and cement the parts in place. Allow the cement to dry thoroughly then remove from the plan and sandpaper the edges round.

The wing is built the same as the tail parts. Do not forget to elevate the wing tips to the required height before you cement the top front spar in the center. Keep Rib 11 pinned to the table when you do this and use blocks or books to elevate the tips while the cement is drying. The dihedral is put in after the two wing panels are completed except for the top spar... "

Direct submission to Outerzone.

Quote: "Steve, Mary, Here's the plan, printwood and images of the kit contents and box for Scientific's 'Clarion', scanned from an original kit. 30" span, rubber free flight, designed by Donald Garofalow, dated 1940. This kit used wartime materials including cardboard formers and hardwood strip stock. Thanks again for all you do to keep these plans available. Cheers, Mike Kelly."

Supplementary file notes

Printwood.

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