2017 Kansas Science Olympiad

Transcription

1 2017 Kansas Science Olympiad WRIGHT STUFF Division B Charles Le Event Supervisor cmle@cox.net

2 MONOPLANE Photo:

3 CONSTRUCTION PARAMETERS DESIGN MATERIALS MASS DESIGN CRITERIA PROPELLER RUBBER MOTOR LABELING

4 DESIGN Published plan(s) (3.a.) * Commercial kits (3.a.) Student s design (3.a.) * Kits must not contain any pre-glued joints or precovered surface

5 MATERIALS Any materials EXCEPT Boron filaments (3.b.) Metal objects at Event Supervisor s discretion to approve or reject due to safety issues

6 TIPS for wing and stabilizer Japanese color tissue paper (5.b. Scoring) Plastic film covering (wing and stabilizer) Excellent video: How to cover with OS Film

7 MASS Mass of the airplane including the propeller assembly, and without the rubber motor, must be 7.5 g or more (3.c.) Rubber motor may include any attachment such as O-rings and not to exceed a mass of 1.5 g (3.f.) Hints: Mass is measured in grams NOT grains

8 Total mass of the airplane throughout the flight, excluding the rubber motor! 7.5 grams or more! = 7.5 grams! (A penny has a mass of 2.50 g)

9 DESIGN CRITERIA

10 Commercial available kit: TIPS

11 PROPELLER The propeller assembly may be built by the competitor(s) (3.e.) Or purchased pre-assembled (3.e.) Or modified (3.e.) Must be a single two-bladed propeller (3.e.) Maximum diameter of 14.0 cm (3.e.) No variable-pitch blades (3.e.) Bushings may be used (3.e)

12 Propeller Construction Tips Propeller may be purchased pre-assembled Commercially available thrust bearings may be used

13 Additional Accessories

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15 Method of attaching functional components Tape Thread Music wire Malleable wire Paper Metal or plastic tube

16 POWER (Rubber Motor) Rubber motor must be 1.5 grams or less Including any attachments such as O-rings May be lubricate before or after check-in Motors must be removable from the airplane Motors will be massed at check-in Only qualified motors may be used for official flights

17 TIPS Bring more than two rubber motors! Do not lubricate the rubber motors before check-in Find Rubber Lube at F.A.I. Model Supply

18 TIPS How to tie knots in the rubber loop!

19 COMPETITION Room dimensions (Approx.. length, width and ceiling height) will be announced before the tournament, be prepared to adjust the flight controls to the ceiling height and room size. Cordoned off area will be available for practice and trim flights No supports or assistance from outside cordoned off area. (4.b.) 8 minutes for two (2) official flights No impound Safety glasses are not required but highly encouraged Must present a flight log (4.c.)

20 LABELING The airplane must be labeled (3.g.) Such as school name, team number At least one non-horizontal surface of the airplane must be covered in a nontransparent, non-white material (3.g.)

21 FLIGHT LOG Data must include 6 or more parameters (3 required and at least 3 additional) (4.c.) Ten or more flights (4.c.) Three required parameters: 1. Motor size before wind up 2. Number of turns on the motor at launch 3. Flight time

22 FLIGHT LOG (cont.) Team must choose 3 additional parameters (4.c.) Such as: 1. Turns remaining after landing 2. Estimated/recorded peak flight height 3. Motor torque at launch

23 SCORING

24 Common mistakes to avoid! Rubber motors exceed weight limit No backup rubber motors O-ring failure during winding Lack of visual label for identification (Reference section 3g) Forgot the flight log! Accidental damage from handling!

25 Charles Le Wright Stuff Event Supervisor