Zyphyr (oz3882)

About this Plan

Zyphyr. Rubber sport model. High wing lightweight cabin model. AKA Commercial. 30in wingspan. Published in MAN November 1957. Great choice for Small Rubber events.

Quote: "The Zyphyr, by Sherman Gillespie.

Paw called the fuselage job a 'commercial.' But stick-and-paper rubber models did really fly. Build this one and check up on the old boy.

The Zyphyr is an inexpensive sport model that is easy to build and simple to adjust. It is a consistent flier that can do up to 40 seconds handwound in cold air. Times of over one minute are common in warm air with fine flights of 2:33, 3:14, and 3:17 recorded. Best time during tests was a beauti-ful 11:23 out-of-sight. When last seen the ship was soaring high in a thermal accompanied by six curious seagulls! (The seagulls were not recovered.)

Study the plans, photos and instructions thoroughly. Careful selection of materials and good workmanship are important in keeping the weight down. Weight of the model ready to fly should not exceed 2.5 ounces for best performance.

Fuselage. Cover the plans with wax paper to protect them from cement. Choose hard, straight grained 3/32 balsa for the fuselage. Build the sides separately. Cut and pin the longerons in place..."

Note: This plan was published in MAN 1937 with the title spelling "Zyphyr". So that is the spelling we will continue to use here on Outerzone. Rather than the traditional English usage spelling of Zephyr, the editor of MAN decided to go with Zyphyr. That is a fact of history. Yes, feel free to continue sending me corrections because you think I can't spell. But I will not be changing this listing. We just write up the history, here. That's how this works. Steve.

Supplementary file notes

Plan file includes article.

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