Pilot & Ceiling Balloons
This
balloon was developed in the 1940's and is made from a natural latex compound
which is highly elastic and tear resistant. Physical properties are retained
at extremely low temperatures and the latex compound contains additives which
contribute to its resistance to oxidation and ozone. The robustness of the rubber
film allows the fully inflated balloon to maintain its spherical shape making
it particularly suitable for severe weather launches.
| Reference | KCI 10 | KCI 20 | KCI 30 | KCI 100 |
| Color | red | red or uncolored | ||
| Average Weight (gr) | 10 | 20 | 30 | 100 |
| Neck Diameter (cm) | 2.3 +- 0.3 | 1.4 +- 0.3 | 1.4 +-0.3 | 1.4 +- 0.3 |
| Neck Length (cm) | 5.0 +- 1.0 | 8.0 +-2.0 | 8.0 +-2.0 | 8.0 +- 2.0 |
| Flaccid Body Length (cm) | 13 | 24 | 28 | 53 |
| Barely Inflated Diameter (cm) | 8 | 15 | 18 | 34 |
| Payload (gr) | 0 | 0 | 0 | 0 |
| Recommended Free Lift (gr) | 4.4 | 29.8 | 59 | 294 |
| Nozzle Lift (gr) | 4.4 | 29.8 | 59 | 294 |
| Gross Lift (gr) | 14.4 | 49.8 | 89 | 394 |
| Diameter at Release (cm) | 29 | 44 | 53 | 87 |
| Volume at Release (cu. m) | 0.01 | 0.04 | 0.08 | 0.34 |
| Rate of Ascent (m/min) | 60 | 120 | 150 | 250 |
| Diameter at Burst (cm) | 45 | 70 | 88 | 196 |
| Bursting Altitude (km) | 11.8 | 12.4 | 13.1 | 18.8 |
| Bursting Pressure (hPa) | 199.5 | 181.5 | 162.5 | 66.2 |