Viewing page 156 of 521

This transcription has been completed. Contact us with corrections.

(4) A plane overtaking a slower plane shall never attempt to pass between that plane and any pylon.
(5) After crossing the finish line, all planes shall continue on their course until they have attained an altitude of 1,000 feet, then they may turn and return to the airport and land in that part of the field assigned for landing and in so doing, shall not cross the course of the finish line.
(6) Pilot shall pass all turning points in plain view of the observing officials, stationed at each turning point, and at an altitude of not over 500 feet.

FOULING MARK: "Any competitor who has failed to turn a pylon properly, may validly continue on the circuit provided he makes a complete turn of the said pylon, and then continues his course in the proper direction."

E - FINISH OF THE RACE

(1) The finish of all Closed Course Events will be made by passing over the finish line in front of and at right angles to the grandstand, after completing the required number of laps allowed in the Closed Course or other prescribed course.

F - WINNER OF THE RACE

(1) The winner of the first place, in any event, where speed is the determining factor, shall be the pilot who has completed a full course in the shortest elapsed time, and of second place, the second best time, etc., provided the pilot is not disqualified.

SPECIAL STRAIGHT-AWAY SPEED EVENTS

All Cubic Inch Classifications
Course--One Mile

Individual Trophies to be Presented to Winner
of Each Special Event

The 1931 National Air Races inaugurate a series of straight-away speed dashes over a certified course directly in front of the grandstand. The fasted speed obtained in the individual free-for-all groups during the period of this year's races will be set up as American National Air Race records in individual cubic inch classes and will be contested from year to year. The timing for these events will be simultaneous with the qualifying dashes for all free-for-all entries. The speed trials will be effected in straight-away flight at an altitude of not more than 150 feet. An approach by diving is prohibited and will disqualify the contestant. The contestants will be permitted to make several attempts during the period of the Races, during the periods on the program assigned for qualifying and speed dashes, subject to approval of the Contest Committee. One speed dash will be made in each direction to overcome wind variance and the net speed will be an average of the speed in both directions. Entrants will fly in straight line level flight one-half mile prior to crossing the starting line and continue one-half mile prior to crossing the starting line and continue, one-half mile in straight line level flight, after crossing the finish line.

Special Event No. 101-- 175 cubic inch displacement or less (men pilots).
Special Event No. 102-- 350 cubic inch displacement or less (men pilots).
Special Event No. 103-- 510 cubic inch displacement or less (men pilots).
Special Event No. 104-- 650 cubic inch displacement or less (men pilots).
Special Event No. 105-- 800 cubic inch displacement or less (men pilots).
Special Event No. 106--1000 cubic inch displacement or less (men pilots).
Special Event No. 107--1875 cubic inch displacement or less (men pilots).
Special Event No. 108--Free-for-all (THOMPSON TROPHY QUALIFICATIONS), (men pilots).
Special Event No. 109-- 510 cubic inch displacement or less (women pilots).
Special Event No. 110-- 8000 cubic inch displacement or less (women pilots).
Special Event No. 111--Free-for-all (AEROL TROPHY. QUALIFICATIONS), (women pilots).

CLOSED COURSE EVENTS

EVENT NO. 1
FREE-FOR-ALL - Men Pilots Only
Total Purse $1,000

(1) Open to any type airplane powered with an engine having not more than 175 cubic inch piston displacement.
(2) Three laps of a ten-mile course.
(3) First prize $500.00, second prize $300.00; third prize $200.00.
(4) Required qualifying speed 75 miles per hours. (See Special Event No. 101.)

Event No. 2
Men Pilots Only
Total Purse $600

(1) Open to any type airplane powered with an engine not more that 175 cubic inch piston displacement.
(2) Three laps of a ten-mile course.
(3) First prize $300.00, second prize $180.00, third prize $120.00.

Event No. 3
FREE-FOR-ALL - Men Pilots Only
Total Purse $1200

(1) Open to any type airplane powered with an engine of not more than 350 cubic inch piston displacement.
(2) Three laps of a ten-mile course.
(3) First prize $600.00, second prize $360.00, third prize $240.00.
(4) Required qualifying speed 100 miles per hour. (See Special Event. No. 102.)