Dave VE3KCL was the first person to use QRP Labs kits based on the Ultimate3S kit for high altitude "floater" balloon tracking. These flights use a special firmware version which carries additional telemetry over the WSPR network. The Flight S-4 page has a full explanation of this. 

Flight listing

Click the flight name in this table to go to the flight's page. 

Operator Launch
Duration Altitude Distance Comments
STELLA4 Daniel DL6OW Pending       Planned launch date 26-Dec-2016
STELLA3 Daniel DL6OW 16-Nov-2016 4.5 hours 9,020m 96km  
S-20 Dave VE3KCL 06-Nov-2016 12 hours 10,660m 781km  
STELLA2 Daniel DL6OW 29-Oct-2016 4 hours  6,080m 194km  
U3S-4 Jim N2NXZ 19-Oct-2016 7 days  Unknown    
S-19 Dave VE3KCL 10-Oct-2016 Unknown >10,000m Unknown Lost due to GPS fault
S-18 Dave VE3KCL 07-Oct-2016 27 days 11,080m 46,502km Second VE3KCL circumnavigation!
Brick Jim N2NXZ 22-Sep-2016 3 days 9,500m N/A Transatlantic flight by Jim N2NXZ
S-17 Dave VE3KCL 19-Sep-2016 6 days 11,560m 11,187km  
S-16 Dave VE3KCL 02-Aug-2016 1 day 10,340m 940km  
STELLA1 Daniel DL6OW 30-Jul-2016 7 hours 8,700m 181km First DL6OW flight!
S-15 Dave VE3KCL 19-Jul-2016 9 days ~9,500m 11,615km  
S-14 Dave VE3KCL 11-Jul-2016 2 days ~9,500m 3,634km  
S-13 Dave VE3KCL 04-Jul-2016 6 days ~10,000m 12,732km  
S-12 Dave VE3KCL 21-Jun-2016 9 days ~10,000m 15,114km  
S-11 Dave VE3KCL 14-Jun-2016 24 days >10,000m 38,092km First VE3KCL circumnavigation!
S-10 Dave VE3KCL 09-May-2016 10 days ~10,000m 9,372km  
S-9 Dave VE3KCL 10-Apr-2016 18 days ~10,000m 51,711km Epic flight! Almost back to the start line.
S-8 Dave VE3KCL 30-Mar-2016 10 hours 13,180m 783km Highest VE3KCL flight. Used homemade balloon
S-7 Dave VE3KCL  11-Mar-2016 1d 9hrs ~7,500m 4,975km  
S-6 Dave VE3KCL  24-Sep-2015 3 days ~8,000m 4,300km  
S-5 Dave VE3KCL  04-Sep-2015 5 hours 11,040m   Latex balloon (not mylar floater)
S-4 Dave VE3KCL  24-Jul-2015 6 days ~8,300m 10,288km First transatlantic VE3KCL flight
S-3 Dave VE3KCL 28-Jul-2015 5 days ~8,000m 4,335km 16mW received 23,500km away by ZL1RS
S-2 Dave VE3KCL 22-Jul-2015 2 hours 4,120m 91km  
S-1 Dave VE3KCL 03-Jun-2015 2.5 hours  4,333m 68km First U3S flight!