UBSEDS6
UBSEDS6 was our first launch using a 36” Qualatex Balloon. Despite a bumpy ascent over Bristol the balloon super-pressured and floated at about 8.6km. Favourable winds carried the balloon to Latvia before the tracker failed 14 hours into the flight.
Pre-stretching
The balloon was “pre-stretched” before flight but pumping air into the balloon using a slightly modified Omron M2 Blood Pressure Monitor. While in flight the balloon experiences about 2kPa of internal super-pressure at 8.5km float (this figure is a vague guess) the balloon was inflated to a pressure of 4.7kPa on the ground (measured as 35mmHg on the Omron M2).
Gif of the balloon inflating from 2.7kPa to 4.7KPa. This takes about 2 hours.
The difference between the balloon at the start and end of the process is very noticable. One of the slides below shows an un-modified balloon on the left and a pre-stretched envelope on the right.
Float
During the day the balloon entered a very stable float at about 8.6km altitude and dropped to a similarly stable float at 8.2km during the night.
Tracker
No major changes since last launch. The cause of tracker failure is unknown, but possibly due to cold (-30ºC).
Map
Plots
Statistics
- Total distance traveled:
1746.9km - Great circle distance:
1721.1km - Maximum altitude:
8.7km - Countries passed through:
Resources
Listeners
Thank you to all listeners who tracked this flight!
| Callsign | Telemetry Lines Received | Longest Path |
| PE2G
|
603 | 373.9km |
| PE2BZ
|
573 | 346.2km |
| MH
|
518 | 359.0km |
| G8KNN
|
502 | 357.4km |
F5APQ
|
492 | 395.4km |
| M0UPU
|
389 | 407.5km |
| G1DYQ
|
360 | 287.0km |
| G8DHE
|
338 | 240.8km |
| PE1ANS | 336 | 401.0km |
| PB0AHX
|
327 | 382.1km |
| SM7DSE
|
325 | 309.2km |
| M0ZBU
|
323 | 340.0km |
| 0x17
|
304 | 322.0km |
| ROS
|
274 | 330.5km |
| G0WXI
|
264 | 242.6km |
| PE1RQM
|
246 | 276.1km |
| NLincs
|
244 | 369.1km |
| G8FJG_2
|
228 | 326.8km |
| PD5TON/A | 221 | 282.1km |
| G8FJG_1
|
210 | 288.4km |
| OZ1SKY
|
193 | 373.4km |
| SA6BSS
|
174 | 1267.9km |
| G4AIU
|
166 | 257.4km |
| M0SBU
|
149 | 355.0km |
| GOS
|
122 | 234.2km |
| YL3CT
|
118 | 354.9km |
| G8ZBJ
|
106 | 163.4km |
| VA1DWR | 98 | 4867.6km |
| g0nzo
|
98 | 283.2km |
| G8JNJ
|
91 | 253.7km |
| M0CJM
|
90 | 119.6km |
| SWL014
|
80 | 370.2km |
| PD3T
|
68 | 348.7km |
| 2E1FOV
|
66 | 292.1km |
| x-f | 61 | |
SP1TMN
|
56 | 372.6km |
| DUTCH
|
40 | 178.9km |
| Northants
|
28 | 114.3km |
| AlgidSpace
|
23 | 176.9km |
| YL2CP
|
22 | 268.6km |
| SP3MCY
|
20 | 1177.9km |
| PB5A
|
15 | 140.3km |
| G4YHE
|
11 | 186.8km |
| G7SVI
|
8 | 132.8km |
| G8IMN
|
4 | 136.9km |
| m6dnu | 2 |
