Spinner oz10779

 

Spinner - plan thumbnail image

Spinner - completed model photo

Submitted to Outerzone: 31/12/2018
Outerzone planID: oz10779 | Filesize: 389KB | Format: • PDFbitmap | Credit*: theshadow

   

About this Plan

Spinner. Hand launch glider. Class B record breaker.

Plan shows parts to make both a Class A (12in span) and a class B (18in span) model.

Quote: "Here's a glider with an enviable contest record - yet it is so easy to build that you won't even have to enlarge the plans. Spinner, by Bill Fletcher.

The Spinner is, in our opinion, the ultimate in hand-launch glider design. It lists among its achieve-ments seven official national AMA records, held during a five-year period: 1943 to 1948. Scaled to four different sizes, it has performed well in each. As a 23 square inch Class A model, flown by Warren Fletcher, it won twelve consecutive times in contests sponsored by our club, the Prop Spinners of Elmhurst, Long Island. The Class B version flies best, averaging 40 to 50 seconds. The records held by Warren Fletcher (3 :50 in the Junior class) and Lenny Kendy (8 :52 in the Senior class) attest to this fact. Best unofficial time was 11 minutes, made by Bob Hatschek. Bob Horak set a record with a Class C Spinner version of 100 square inches. His best recorded time was 2:50. Bob also set another record of 7 :01, with a Class D version of the Spinner, of 150 square inches. Three more Class D Spinner records were set by Warren Fletcher, Dick Knauss and myself.

CONSTRUCTION: The plans are drawn to the convenient scale of 1/2 in to 1 in. All you need do is to mark off the wood to the dimensions indicated and cut out. It is not necessary to enlarge the plans. How-to-build data given here is for the Class B Spinner - the Class A version is made in similar fashion, as indicated on the plans.

The wing should be made from 3 in Jasco tapered stock. If this is not available, lay out wing dimensions on 3/16 x 3 x 18 inch medium soft sheet balsa. Cut tip taper with a razor blade and finish rough airfoil with a wood rasp or rough sandpaper. Thin out the tips to 1/8. Finish off the airfoil with progressively finer sandpaper to 10/0.

Block the wing tips up to 1-1/2 in; then trim the dihedral joint to a flush fit. Cement both tips to the center panels. When completely dry, join the panels at the center dihedral break in the same fashion. Block up 3/4 in on both sides.

The stabilizer is very simple. Cut it from 1/16 medium sheet balsa and sand smooth. Work in a reverse airfoil, by sanding the bottom of the stabilizer leading and trailing edges but not the top. Cut half-way through at the center and crack for anhedral. A small ainount of cement will suffice until the stab is ready for attachment to the fuselage. The rudder requires a little more work..."

Direct submission to Outerzone.

Update 07/01/2019: Added article, thanks to RFJ.

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oz10779 datafile

Spinner  
by Frank Koditek, Bill Fletcher
from Flying Models
April 1949 
18in span
Tags: Glider F/F
all formers complete :)
got article :)

 

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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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