On July 15, 2004, we flew three (3) Estes Snapshot rockets as part of a summer science camp for elementary school children. Previously, I requested suggestions from this group for improving our success rate. I had planned to update the parachutes and shock cords, but my supplier was late in delivering our requested nylon parachutes and kevlar cord. Therefore, we used the Snapshot unmodified (except for tape over the film door).
Having never used an Estes camera kit, I can't compare this model to older Estes camera rocket kits. The shock cord was connected internall to the launch lug. The shutter release consisted of a button that extends out, tripping the shutter, when the nosecone leaves the body tube.
The weather was partly cloudy with little wind. We used only the recommended C6-5 engines. I had developed "checklists" for the students (and for myself). The prepartion checklist was particulary useful. We prepared the camera correctly on each attempt (wound the camera, set the release mechanism, and unlocked the shutter).
First round of launches
Rocket #1 no malfunctions, parachute fully deployed, recovered undamaged Rocket #2 no malfunctions, parachute fully deployed, recovered undamaged Rocket #3 no malfunctions, parachute fully deployed, broke fin on asphalt
Second round of launches
Rocket #1 no malfunctions, parachute fully deployed, recovered undamaged Rocket #2 no malfunctions, parachute fully deployed, recovered undamaged
Third round of launches
Rocket #1 no malfunctions, parachute fully deployed, recovered undamaged Rocket #2 no malfunctions, parachute fully deployed, recovered undamaged
Fourth round of launches
Rocket #1 no malfunctions, parachute fully deployed, landed in tree, I cut shock cord to recover camera, no damage visible in body. Rocket #2 no malfunctions, parachute fully deployed, recovered undamaged
Results:
Nine photos taken. Only two photos were ground shots. One ground shot was extremely blurry. One good photo!
I have published our results at
Daniel Cervantes