Flight #33 - 2018a

Release of Flight #31's flight string.

Central Christian School has requested a flight demonstration in conjunction with their 8th grade science class. The flight will be conducted on a school morning in the prescence of students and facilty.

 

 

 

 

 

 

 

 

 

 

 

 

Flight Parameters

 

Launch Date/Time Wednesday May 2nd at 8:45am (13:45Z).  Plan on meeting at 7:30am to prepare.  
Alternative Date Friday May 4th at 8:45am (13:45Z)  
Launch Site Central Christian School (38.0883N, -97.8878W)  

Capsule 1 (Track)

144.39MHz

ArduinoTrack with Radio Shack HTX-200 HT transmitter and Ublox M8Q GPS, signing W0ZC-11.

Beaconing is altitude-based delay:
20 second delays below 4,000m, 20 second delays above 25,000m.  Otherwise 45 second delays.

Path is disabled above 2,000m MSL.

Canon A570IS camera running CHDK and GoPro camera pointed up.

1.10kg

Capsule 2 (Track)

144.39MHz

ArduinoTrack (Combined) with RadioMetrix 300mW transmitter and Ublox M8Q GPS, signing W0ZC-12.

Beaconing is simple time delay:
55 second delays through entire flight.

Path is disabled above 2,000m MSL.

0.31kg

Capsule 3 (Track)

144.39MHz

ArduinoTrack Flex with RadioMetrix 300mW transmitter and Ublox M8Q GPS, signing W0ZC-13.

Beaconing is simple time delay:
100 second delays through entire flight.

Path is disabled above 2,000m MSL.

0.49kg
Recovery / Misc
Parachute and misc rigging. 0.31kg
Total Flight Weight Total neck weight on the balloon. 2.21kg
Balloon / Gas 1200g Kaymont with 5.4cu meters (190cu ft) Helium. Neck lift (4.3kg) / Net lift (2.1kg)  
Estimated Burst Altitude 29,939m MSL (98,225')  
Estimated Ascent Rate 6.1 m/s (1200'/min)  
Estimated Descent Rate 6.6 m/s (1300'/min)  
Chase Frequencies 446.100MHz  

 

Flight Results

Launch Date/Time Wednesday, May 2nd at 8:45am (13:45Z)
Launch Site Central Christian School (38.0883N, -97.8878W)
Burst Altitude 28,939m MSL (94,946') 
Average Ascent Rate x.xm/s (x'/min) 
Measured Descent Rate x.xm/s (x'/min) measured at x' MSL. 
Touchdown Site 38.6593N, -96.5720W
Touchdown Time Wednesday, May 2nd at 10:41am (15:41Z)
Recovery Time Wednesday, May 2nd at 11:29pm (16:29Z)
Distance Traveled 131km (81mi)
Total Flight Time 1 hour, 56 minutes 
Downloads W0ZC-11 Log, Flight Path (KML), Winds Aloft Forecast

 

Tracking Predictions

1 May 2018

The flight track is almost identical to yesterday.  All indications show that storms should hold off until well after noon.  A quick recovery will be very important.

 

Flight prediction May 1st

 

30 April 2018

Surface weather is calling for isolated thunderstorms in the morning, which could cause us problems.   We're continuing to watch that.  Winds upstairs seem to be cooperating more and more each day.

Flight predictions for April 30th.

 

29 April 2018

The track is stabilizing, and zeroing in on the small town of Alma, about half way between Topeka and Junction City.  Surface forecasts are continuing the call for "PM" storms, although the Topeka forecast is calling for a lesser chance of "scattered" storms this morning.  That may suggest that the storms will be fizziling through central Kansas, or not going as far north as I-70.

 

Flight forecast for April 29th.

 

28 April 2018

This is a very similar track to Friday the 27th.  Still overing in the mid-80 knots around 40k feet for a top speed.  Surface forecasts are now calling for "PM" thunderstorms and moderate surface winds.  At this point we're still a go for Wednesday.

Flight predictions for April 28

 

27 April 2018

Similar tracks, although it appears that a chance of rain or thunderstorms has now picked up.  

Flight predictions for April 27th.

 

25 April 2018

Track is still showing the same general north-northeast track, only somewhat shorter than Monday's prediction.  Surface weather still looks good for launch on May 2nd.

Flight predictions for April 25th

23 April 2018

Initial predictions for Monday the 23rd, show a typical north-northeast flight up to the Junction City area.  Maximum speed is a moderate 83kts.  Surface weather looks promising with only a slight chance of rain Wednesday.

Flight predictions for April 23rd