Contest #2: Random Fun
Your goal is to design one rocket using OpenRocket to do 2 things:
Entries:
Design Requirements:
Body Tubes
Flight Conditions:
Disqualifications:
Scoring:
Points will be awarded according to finish rank in each event:
1st Place: +100 points
2nd Place: +80 points
3rd Place: +50 points
4th Place: +30 points
5th Place and lower: +10 points
DQ: 0 points
- Achieve a random altitude between 300' and 600'
- Achieve a random duration between 30 s and 60 s
- Random altitude and duration is different for each competitor
- Competitors will not know their altitude or duration goal until after submitting their rocket design and motor selections
Entries:
- 1 OpenRocket (.ork) file
- 3 motor choiices and launch rod angles
- Entries must be received by February 11, 2018
Design Requirements:
Body Tubes
- All body tubes must come from the OpenRocket database
- Body tubes must not be longer than their default lengths
- Sections must be joined by realistic couplers, bulkheads, or transitions (with realistic shoulders)
- We will be launching from a 36” rod so at least one 1” x ⅛” launch lug is necessary.
- There must be a minimum of 3 fins (tube fins are not allowed)
- Minimum thickness is 1/16”
- Standard parachute/streamer materials available in OpenRocket must be used
- Only 24 mm engines from the OpenRocket database may be used
- Motor overhang must be 0.5 inches
- Clusters and staging are not allowed
- Materials must be standard weights and thicknesses
- Rockets must have at least 1.0 caliber of stability when loaded with engines
Flight Conditions:
- 3’ rod
- 12.6 km/h wind (10% variation)
- 5°C and 1013 mbar pressure
- Launching from Chatham, ON
Disqualifications:
- Landing speed higher than 20 feet/second
- Speed at the end of the launch rod less than 50 feet/second
Scoring:
Points will be awarded according to finish rank in each event:
1st Place: +100 points
2nd Place: +80 points
3rd Place: +50 points
4th Place: +30 points
5th Place and lower: +10 points
DQ: 0 points
- +50 bonus points if the same flight qualifies for both altitude and duration (ie: if one of your motor choices provides your best altitude flight and your best duration flight).
- +30 bonus points for a static photo of an actual physical build of your design
- +30 bonus points for a launch photo of an actual physical build of your design
- Early bird bonus points of +9, +8, +7.....+1 for complete entries received prior to February 4, 2018.