Pirogue Payload

     Pirogue (cajun french for a small boat) is a second generation payload designed to fly on sounding balloons. It is named pirogue after its predecessor, HABITAT (High Altitude BIological Testing of the Atmosphere), landed in the water several after multiple flights. A small pirogue was attached to the payload "in case of water landing" as a joke giving it its name. Pirogue's purpose is to collect microorganisms as it passes through the atmosphere and obtain a detectible signal. The results will be compared to its predecessor to confirm the effectiveness of the capture method works.

     Pirogue contains two chambers, an active sampler chamber and a control chamber. Each chamber uses 20 Rotorods coated with a thin layer of silicone grease to capture microorganisms. The rods are held in a custom aluminum bracket and placed inside a Poly Vinyl Chloride (PVC) tube. Each end of the tube has an O-ring that creates a seal against the copper plated doors. Both doors are actuated with a single servo when the payload reaches the target altitude. The two chambers are placed side by side with a single latch locking both doors down.

     The entire system is then placed within a foam box. This box helps to protect the mechanical system as well as house the electronics.