DMAA SPORTSMAN GOODYEAR RACING 1996

Objective: Sportsman Goodyear Racing is intended to be a low-key sport

racing event which can be enjoyed by both novices and experienced racers.

By disallowing expensive, high performance racing engines, both cost

and performance are kept down to a level which all modelers can manage.

This event is similar to Class II Goodyear, which is flown in several

other cities, except the engine restrictions are more relaxed, allowing

a wider variety of engines to be used.

Applicability: All AMA general and safety rules, the AMA Unified Control

Line Racing Rules, and rules from event 317, Control Line Scale Racing,

shall apply unless modified, appended, or specified below.

Entries

Once a contestant has used an aircraft or engine in the event, that

aircraft or engine may not be used by another contestant during the

same event.

Model Specifications: Per Control Line Scale Racing. The builder of

the model rule shall not apply.

Only one fuel tank is allowed, with a maximum capacity of one fluid

ounce. The fill, vent and pickup tubes shall have a maximum outside

diameter of 1/8". Fuel shutoffs are permissible but not mandatory.

Hot glove or hot thumb electrical contacts shall not be permitted.

Engine Specifications: Non-schnuerle ported engines may employ crankshaft

ball bearings or plain bearings. Schnuerle ported engines must be of

plain bearing construction only. Plain bearing conversions of ball

bearing engines are specifically prohibited. However, the Fox 15BB

Schneurle ported engine may also be used. The following major components

of the engine must have been produced by the original manufacturer for

the specific engine in quantities of at least 1000: the complete crankcase

including front and rear ends, or upper and lower portions as applicable,

the crankshaft, cylinder and piston. Engine parts may be modified by

removing material only, except that cylinder plating is permissible.

Non-stock cylinder heads or head buttons may be employed, however glow

engines must use a 1/4-32 thread glow plug if the stock cylinder head

or glow head is not used. In the case of a dispute, the event director

shall have the final decision regarding legality of specific engines.

Control Line Specifications: Models must employ a two line control system.

Control lines will be .012" minimum dia. for solid lines, and .015"

minimum diameter for multi-strand lines. Line length shall be 52'6",

6", measured from the grip portion of the control handle to the center

line of the fuselage.

Races: Heat races Shall be 80 laps. A minimum of one pitstop is required.

Final races shall be 160 laps. A minimum of two pitstops is required.

Field Layout: The Inner circle shall be 58' radius. The outer circle

shall be 68' radius.