[Canberrauav] Sunday flying recap Stephen Dade stephen_dade at hotmail.com Sun Jul 15 23:26:28 EST 2012 Hi everyone We managed to get a fair amount of flying done today, despite the strong winds. The highlights were: -The Mugin copes exceptionally well in strong winds. The wind was westerly at ~6-10 m/s for most of the day. -The fixed ailerons worked very well. Next on the maintenance list are the elevons and tail assembly. -The "Engine stopping at 45min" problem still baffles us. Our first test was to put in 1.3L (the amount of remaining fuel at the 45min mark), takeoff and see what happens. The Mugin flew for about 15-20min before the engine cut out again. The members at CMAC provided a number of potential theories and solutions for us. Jack will look at implementing some of these in the coming weeks. -The new image detection algorithm worked quite well at detecting the Joe in the orange vest (an issue for the previous version of the code) -15 min into our second (third?) flight, the 5.8 GHz link started acting up. Since this is a potential warning sign of a flat avionics battery, we landed immediately. One on the ground the battery was found to be quite low. Before next weekend, we will fit a voltage/current sensor to the battery for the APM to monitor in flight. -None of the avionics/antenna/power cables came loose during flight! Apparently we're using enough sticky tape now. See you all at MHV on Tuesday night. -Stephen
[Canberrauav] Sunday flying recap Jack Pittar jpittar at bigpond.net.au Sun Jul 15 23:57:41 EST 2012 There were 3 flights. The second was half an hour. The wind was strong and gusty, mostly NNW and NW, so after 10:30 or so we had the field to ourselves. Jack. -----Original Message----- From: canberrauav-bounces at canberrauav.com [mailto:canberrauav-bounces at canberrauav.com]On Behalf Of Stephen Dade Sent: Sunday, 15 July 2012 11:26 PM To: canberrauav Subject: [Canberrauav] Sunday flying recap Hi everyone We managed to get a fair amount of flying done today, despite the strong winds. The highlights were: -The Mugin copes exceptionally well in strong winds. The wind was westerly at ~6-10 m/s for most of the day. -The fixed ailerons worked very well. Next on the maintenance list are the elevons and tail assembly. -The "Engine stopping at 45min" problem still baffles us. Our first test was to put in 1.3L (the amount of remaining fuel at the 45min mark), takeoff and see what happens. The Mugin flew for about 15-20min before the engine cut out again. The members at CMAC provided a number of potential theories and solutions for us. Jack will look at implementing some of these in the coming weeks. -The new image detection algorithm worked quite well at detecting the Joe in the orange vest (an issue for the previous version of the code) -15 min into our second (third?) flight, the 5.8 GHz link started acting up. Since this is a potential warning sign of a flat avionics battery, we landed immediately. One on the ground the battery was found to be quite low. Before next weekend, we will fit a voltage/current sensor to the battery for the APM to monitor in flight. -None of the avionics/antenna/power cables came loose during flight! Apparently we're using enough sticky tape now. See you all at MHV on Tuesday night. -Stephen
[Canberrauav] Sunday flying recap Stephen Dade stephen_dade at hotmail.com Mon Jul 16 20:44:57 EST 2012 I missed a few things from my initial report: -We tried using the airspeed (pitot tube) sensor for our velocity rather than GPS. This did not go well. It looks like the pitot tube needs more work/calibration. -I've put together a video of Sunday's events here: http://youtu.be/UFCzeDZASPQ Thanks Stephen From: canberrauav-bounces at canberrauav.com [mailto:canberrauav-bounces at canberrauav.com] On Behalf Of Stephen Dade Sent: Sunday, 15 July 2012 11:26 PM To: canberrauav Subject: [Canberrauav] Sunday flying recap Hi everyone We managed to get a fair amount of flying done today, despite the strong winds. The highlights were: -The Mugin copes exceptionally well in strong winds. The wind was westerly at ~6-10 m/s for most of the day. -The fixed ailerons worked very well. Next on the maintenance list are the elevons and tail assembly. -The "Engine stopping at 45min" problem still baffles us. Our first test was to put in 1.3L (the amount of remaining fuel at the 45min mark), takeoff and see what happens. The Mugin flew for about 15-20min before the engine cut out again. The members at CMAC provided a number of potential theories and solutions for us. Jack will look at implementing some of these in the coming weeks. -The new image detection algorithm worked quite well at detecting the Joe in the orange vest (an issue for the previous version of the code) -15 min into our second (third?) flight, the 5.8 GHz link started acting up. Since this is a potential warning sign of a flat avionics battery, we landed immediately. One on the ground the battery was found to be quite low. Before next weekend, we will fit a voltage/current sensor to the battery for the APM to monitor in flight. -None of the avionics/antenna/power cables came loose during flight! Apparently we're using enough sticky tape now. See you all at MHV on Tuesday night. -Stephen
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