ryerson rocket comp 2009-spot landing · 2021. 1. 11. · rocket motors will be made available from...
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Department of Aerospace Engineering
ROCKET COMPETITIONSPOT LANDING
May 14, 2009
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Acknowledgements
We would like to acknowledge all the members of the rocket committee Dr. Paul Walsh, Dr. David Greatrix, Dr. Donald McTavish, Mr. Peter Bradley and Mr. Jerry Karpynczyk for planning/organizing this event. Further, the Department of Aerospace Engineering would like to thank Dr. David Greatrix and Mr. Jerry Karpynczyk for designing, writing the terms of reference for this competition and preparing this document.
We would also like to extend our special thanks to President Sheldon Levy and the Department
Chairmen Dr. Kamran Behdinan for their continuous support.
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Table of Contents
Acknowledgements ....................................................................................................................................... 2 1. ABOUT THE RYERSON ROCKETRY COMPETITION ................................................................................. 5
1.1 Purpose: ........................................................................................................................................ 5
2. GENERAL ............................................................................................................................................... 5
2.1 Safety Requirements ..................................................................................................................... 5 2.2 Scheduled Events .......................................................................................................................... 5
3. SPOT LANDING MODEL ROCKET SPECIFICATIONS ................................................................................ 6
3.1 Compliance ................................................................................................................................... 6 3.2 Gross Launch Mass ........................................................................................................................ 6 3.3 Propellant ...................................................................................................................................... 6 3.4 Reusability ..................................................................................................................................... 6 3.5 Materials ....................................................................................................................................... 6 3.6 Stability ......................................................................................................................................... 6
4. SPOT LANDING MODEL ROCKET MOTOR STANDARDS ......................................................................... 7
4.1 Definition ...................................................................................................................................... 7 4.2 Certification ................................................................................................................................... 7 4.3 Alterations ..................................................................................................................................... 7 4.4 Classification ................................................................................................................................. 7 4.5 Published Values ........................................................................................................................... 7 4.6 Contest Approval .......................................................................................................................... 8
5. ROCKET DESIGN SPECIFICATIONS ......................................................................................................... 8 6. SPOT LANDING LAUNCHING REQUIREMENTS ...................................................................................... 8
6.1. Flying Field .................................................................................................................................... 8 6.2. Safety Check .................................................................................................................................. 8 6.3. Launching Device .......................................................................................................................... 9
7. CONTESTANTS ....................................................................................................................................... 9 8. SPOT LANDING COMPETITION ............................................................................................................ 10
8.1 Scope ........................................................................................................................................... 10 8.2 Control ........................................................................................................................................ 10 8.3 Separation ................................................................................................................................... 10 8.4 Number of Flights ........................................................................................................................ 10 8.5 Scoring ......................................................................................................................................... 10
Appendix A ‐ MODEL AERONAUTICS ASSOCIATION OF CANADA SAFETY CODE—SPACE MODELING ....... 11 Appendix B ‐ Tri‐F‐O Detail Drawing ........................................................................................................... 13 Appendix C ‐ Tri‐F‐O General Arrangement Drawing ................................................................................. 14 Appendix D ‐ Resources .............................................................................................................................. 15
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Figure 1: Tri‐F‐O Detail Drawing ................................................................................................................. 13 Figure 2: Tri‐F‐O General Arrangement Drawing ........................................................................................ 14
Table 1: Launch Site Dimensions ................................................................................................................ 12
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1. ABOUT THE RYERSON ROCKETRY COMPETITION The Department of Aerospace Engineering has selected model rocketry as one of a number of multi‐disciplinary areas in which to promote the broad spectrum of Aerospace‐orientated activities that emphasizes education, mathematics, design, safety and a hands‐on approach in Aerospace Engineering. This activity will provide students from High Schools and opportunity to develop applied engineering skills to an assigned problem with respect to design constraints, fabrication, techniques & requirements, project planning, and team work, while encouraging creativity and innovation. Ryerson University’s Department of Aerospace Engineering is leading a programme to encourage students to participate in engineering problem solving, and promote student involvement in Aerospace initiatives.
1.1 Purpose:
The purpose of this event is to foster a general understanding of the fundamentals of model rocketry, and demonstrate aspects of one of a number of disciplines in the field of Aerospace Engineering.
2. GENERAL
2.1 Safety Requirements
The Model Aeronautics Association of Canada Safety Code (MAAC) shall govern the design, construction, and operation of all model rockets and model rocket motors used in conjunction with the sanctioned Ryerson University, Department of Aerospace Engineering competition.
2.2 Scheduled Events
The sanctioned event will be held on May 14th, 2009 at Ryerson University. The location will be in the Kerr Hall Building’s main outdoor Quad area between 10:00 am – 3:00 pm. The address is 40/50 Gould St or 60 Gould St campus entrances.
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3. SPOT LANDING MODEL ROCKET SPECIFICATIONS
3.1 Compliance
The model rocket must comply with all specifications in this section and the Model Aeronautics Association of Canada Safety Code before, during, and after each flight. The type specific rocket at this competition will be the Tri‐F‐O scratch build rocket model; drawings are located in appendices B and C.
3.2 Gross Launch Mass The gross launching mass of a model rocket, including the model rocket motor, shall in no event
exceed the maximum over vehicle gross weight of 100 grams as per specified by the Ryerson Aerospace Engineering Contest Board (RAECB).
3.3 Propellant
No more than a total of 12.5 grams of solid propellant material shall be contained in this type specific rocket model at the moment of launch. The maximum solid rocket motor which can be used in this competition will therefore be a C type engine.
3.4 Reusability
A model rocket shall be so constructed as to be capable of more than a single flight.
3.5 Materials The model rocket will use only lightweight materials such as paper, wood, plastics, G10 or rubber, without any metal airframe components. The type specific rocket can use a solid rocket motor metal retainer if so required.
3.6 Stability
Due to the selected design of the type specific rocket, when fabricated the rocket model will have an inherent built‐in stability and restoring force necessary to maintain a substantially true and predictable flight path. If required by the safety officers or judges, the builder of the model must present data demonstrating that their model meets this requirement.
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4. SPOT LANDING MODEL ROCKET MOTOR STANDARDS
4.1 Definition Model rocket motors shall meet the requirements of the Explosives Regulatory Division Natural Resources Canada for model rocketry. Limits
A single solid propellant model rocket motor shall contain no more than 12.5 grams of propellant, and shall produce no more than 10.0 Newton‐seconds of total impulse. Rocket motors will be made available from an approved supplier during the sanctioned Ryerson University, Department of Aerospace Engineering competition.
4.2 Certification
All motors used in a model rocket in the sanctioned Ryerson University competition must be motors approved by Explosives Regulatory Division Natural Resources Canada for model rocketry.
4.3 Alterations
A model rocket motor shall not be altered in any manner that changes its dimensions and/or its performance characteristics. No material shall be affixed to the motor in a permanent fashion (e.g., via glues or epoxies).
4.4 Classification
The Explosives Regulatory Division Natural Resources Canada for model rocketry type motor classification are based on its mean sea level total impulse at a temperature of 20 degrees Celsius as determined in static tests conducted by the Standards and Testing Committee. Certified model rocket motor classifications are as follows:
Motor Class Total Impulse (N‐sec) B 2.51 – 5.00 C 5.01 – 10.00
Note: All motor classes listed above continue to be recognized for certification purposes independent of current commercial availability considerations.
4.5 Published Values The total impulse values measured and published by the Explosives Regulatory Division Natural Resources Canada for model rocketry Standards and Testing Committee shall be the values used.
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4.6 Contest Approval Ryerson Contest Officials will supply rocket motors approved by Explosives Regulatory Division Natural Resources Canada for all of the model rockets at the competition. These rocket motors are currently and readily available commercially, and meet all safety requirements. The teams can select the type of rocket engine to meet the competition requirements by advance planning firing requirements Contest Use All Contest Approved rocket motors shall be issued under the direct/control and supervision of the RAECB in this sanctioned competition, for which the total impulse of the motor has been selected for this event and in is compliance with local laws.
5. ROCKET DESIGN SPECIFICATIONS
The design specifications for the type specific rocket, dimensions, suggested materials and details are given on the supplied drawings in Appendix B and Appendix C.
6. SPOT LANDING LAUNCHING REQUIREMENTS
6.1. Flying Field The flying field shall have a ground area whose shortest dimension is no less than one‐fourth (1/4) the anticipated maximum altitude of the rockets to be flown. The flying field should not contain or be adjacent to high voltage lines, major highways, or other obstacles. The launching location shall be no closer than 10 meters to the boundaries of the flying field. A flying field location will be located in the Greater Toronto Area and all Contestants will be notified two months prior to the competition of the location of the field.
6.2. Safety Check All flight model rockets presented at this competition will be inspected for their construction integrity, details, and a general safety inspection prior to its first proof flight operation. The flying field shall be permitted or denied by the Range Safety Officer or their duly authorized deputy on the basis of his/her considered judgment with respect to safety.
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6.3. Launching Device A launching device or mechanism must be used that shall restrict the horizontal motion of the model until sufficient flight velocity is attained for reasonably safe, predictable flight. A launch rod composed of approximately one meter of 1/8" diameter rod is suggested for light models and models using less than 20 Newton‐seconds of impulse. For heavier or higher powered models, a launch rod composed of approximately one meter of 3/16" or 1/4" diameter rod is recommended. A launching angle of less than thirty degrees from the vertical must be used. Ryerson University, Department of Aerospace Engineering will provide all launching equipment and systems during the competition.
7. CONTESTANTS
7.1. Entering Competition This event is open to the media and it is more than likely that individuals and groups of individuals will be photographed and/or videotaped as they participate. Ryerson University and the Department of Aerospace Engineering may wish to use such images in future promotional literature. Therefore, participants in the Ryerson University Rocket Competition are asked to sign a consent form allowing the use of their image in such literature.
7.2. Teams One, but no more than two teams are permitted from each school for each event. Teams must be registered with the Department of Aerospace Engineering at Ryerson University each year. Once registered, members of a team cannot be changed. Such a change must be registered as a different team and therefore must reapply.
7.3. Ryerson Contest Number
a. Each entry shall carry, legibly displayed upon its exterior surface as the model rocket appears in flight readiness, the Ryerson Flight Number. In the case of a team entry, the entry shall carry the team name and Ryerson Flight Number.
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8. SPOT LANDING COMPETITION
8.1 Scope The Spot Landing Competition is open to the type specific rocket vehicle selected which is the Tri‐F‐O. This rocket is considered to be scratch build model configuration and only single staged engines will be used. The purpose of this competition is to land the entry so that the vehicle is closest to a predetermined spot on the ground.
8.2 Control The entry may not be remotely controlled or remotely guided.
8.3 Separation An entry must not separate into two or more unattached pieces and the rocket motor engine must remain in the rocket.
8.4 Number of Flights
Each entry shall be allowed a minimum of two official flights during the event with only one target site practice flight. All contestants will be required to fly one unofficial flight proof test prior to entering the competition event.
8.5 Scoring Spot Landing Competition shall be scored as follows: the distance from the rocket motor nozzle of the model to the target spot shall be measured by the officials. If the rocket motor nozzle lands more than 50 meters from the target spot, the model shall not place. The contestant achieving the smallest separation distance from the target spot shall be the winner.
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Appendix A MODEL AERONAUTICS ASSOCIATION OF CANADA SAFETY CODE—SPACE MODELING
Pertinent to the Ryerson event, the following information comes directly from the MAAC model safety code1:
A.1 CONSTRUCTION: I will always build my model rocket using only lightweight materials such
as paper, wood, plastics or rubber without any metal airframe components. My model will include aerodynamic surfaces or a mechanism to assure a safe, stable flight.
A.2 MOTORS: I will use only commercially available model rocket motors approved by Explosives Regulatory Division Natural Resources Canada for model rocketry. I will never subject these engines to excessive shock, extremes of temperature, nor will I ever attempt their refilling or alteration. I shall always employ recommended manufacturer handling and ignition procedures.
A.3 IGNITION: I will only install igniters at the launch site immediately prior to launching my model rocket. If using an onboard electrical system to ignite additional motors in a staged and or clustered model rocket, I will provide a safety system consisting of a removable pin or key that disengages the onboard electrical system of the model until such time as the key or pin is removed. I will remove this pin only after the model has been properly placed on the launch system. Upon recovery, or after an aborted launch, I will reinsert the pin or safety key until such time as any remaining motors are removed from the model and the firing systems is discharged. I will affix to the safety pin or key a length of streamer with the words "REMOVE BEFORE FLIGHT" printed legibly on the streamer.
A.4 RECOVERY: My model rocket will always use a recovery system to return it safely to the ground so that my model rocket may be re‐flown. I shall prepare the recovery system with due care to assure that it will properly deploy.
A.5 WEIGHT & IMPULSE LIMITS: My model rocket will not weight more than 1500 grams at lift‐off, and the model rocket engine(s) will contain no more than 125 grams of propellant and produce no more than 160 N‐s combined total‐impulse.
A.6 FIRING SYSTEM: I will always use a remote electrical system to ignite the model rocket engine(s). My firing system will include an ignition switch that returns to "off" when released and a safety interlock to prevent accidental ignition. I will never leave the safety interlock key in my firing system between launches.
A.7 LAUNCH SYSTEM: My model rocket will always be launched from a stable platform having a device to initially guide its motion. My launcher will have a jet deflector to prevent motor exhaust from directly contacting the ground. To protect others and myself from eye injury, I will position the launch rod or rail so that the upper end is above eye level, or else I will place a large guard on the upper end between launches.
A.8 LAUNCH SITE: I will never launch my model rockets near buildings, powers lines or near air traffic. Whenever possible, I will launch from locations 9 km or more from any airport. The minimum distance across the launch field in any direction shall be a minimum of ¼ of the highest altitude to be flown. A minimum distance of 1/3 is recommended. The area immediately around the launch system will be cleared of any flammable materials. I will
1 Ref: The Model Aeronautics Association of Canada (MAAC) Safety Code, Version 005, Space Modeling, pgs 16 to 17, www.maac.ca .
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always obtain the permission of the launch site owner prior to using the launch site for my model rocket activities.
A.9 LAUNCH CONDITIONS: I will never launch model rockets in winds greater than 35 km/h. I will never launch my rockets in conditions of low visibility or clouds, which may impair the observation of the entire flight of my model rocket. I will never launch my model rockets in a direction below 30 degrees from the vertical.
A.10 LAUNCH SAFETY: I will remain at least 5 meters away from any model about to be launched. I will always announce to persons within the launch site that I am about to launch my model rocket and I shall give a loud countdown for at least 5 seconds duration. I will never launch a model rocket while any low flying aircraft are visibly approaching my launch location. I shall immediately remove the safety interlock key from my firing system after the launch of my model rocket.
A.11 MISFIRES: In the event of an ignition misfire, I shall not immediately approach my model rocket, but remove the safety interlock key and remain back for a safe period until assured that no ignition will occur.
A.12 ANIMAL PAYLOADS: I will never endanger live animals by launching them in my model rocket.
A.13 TARGETS: I will never launch my rocket so that it will fall on, or strike, ground or air targets. Nor will I include any explosive or incendiary payload.
A.14 HAZARDOUS RECOVERY: I will never attempt to recover my model rocket from a power line, high place, a tree or other dangerous location.
A.15 PRE‐FLIGHT TESTS: Whenever possible, I will always test the stability, operation and reliability of my model rocket designs prior to flight. I will launch unproven designs in complete isolation from other persons.
A.16 PERSONAL CONDUCT: I will always conduct myself in a responsible manner, conscious that the maintenance of safety for others and myself rests with my ability to design and construct sound working models and to enthusiastically abide by the MAAC Model Rocket Safety Code. I will abide by the decisions and follow any instructions of any designated Range Safety Officers (RSO) and any person designated by the RSO such as a Launch Control Officer (LCO) that may be supervising a launch.
LAUNCH SITE DIMENSIONS
Installed Total Impulse (N‐sec) Equivalent Motor Type Minimum Site Dimensions (m)
0.00 – 1.25 1/4A, 1/2A 15 1.25 – 2.50 A 30 2.51 – 5.00 B 60 5.01 – 10.00 C 120 10.01 – 20.00 D 150
Table 1: Launch Site Dimensions
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Figure 2: Tr
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Appendix D Resources Advanced Rocketry Group Ltd – (Parts & Materials) 977 Pantera Dr. Unit 5 Mississauga, Ontario L4W 2W6 Mr. Taras Tataryn Telephone (905)501‐1425 Facsimile (905)272‐3163 Email [email protected] http://www.argrockets.com Membership Application http://www.maac.ca/docs/forms/form_membership.pdf Competition Web Site http://www.ryerson.ca/rocketcompetition Rocket competition E‐Mail [email protected]