Project Home Seven members (Teams 13198 and 13200) and several adults traveled to the Virginia launch site on Saturday, March 17. It was a beautiful day, with wind under 5 mph. We used the 7ft launch rail for all the launches. We had some very nice launches and all rockets were recovered. Each team did three launches including one TARC qualification launch. We have one more final qualification launch in March. Objectives Teams 13198 and 13200 complete at least one qualification launch. Team 13200 will use the new altimeter. Lessons We angled the rail just a few degrees with the wind, with changes as the wind diminished . The flights were very straight. On the second test, Team 13198 switched to a thin 18" chute to reduce weight. On their third (qualification) test, Team 13198 switched out their shock cords because they were getting tangled and frayed. Good move. The other teams need to continually check rocket elements and repair if suspicious.. On their third test, Team 13200 had the parachute melt a little and not deploy correctly. They need to better protect their chute from the ejection sparks On their second  test, Team 13200 had the bottom egg crack. It was a qualification flight so they were DQed. They need to protect the bottom egg better. They lost the top egg on their third test because of the near free fall of the cargo unit. Team 13198 had several Quest igniter failures and switched to using copperheads. We used up most of the Quest igniters. Both teams used the new altimeters. Both had serious spikes at ejection and at landing. We need to think about this issue. We weighed our motors and eggs. The motors were all very close in weight. The eggs varied between 58 and 62 grams. The teams used this difference to adjust total rocket weight. While weighting the motors and eggs may not have made much difference, attention to detail is always a good thing. We still need a stool for the 7ft launch rail, although Team 13200 overcame their deficiency in height. We need to be very careful in weighting our rockets (or anything) and do it two or three times with Tare in between. When you make adjustments due to weight, you need to have accurate data.     Team 13200 Team 13198

Launches

Rocket		Engine	Cargo	Cargo Recovery	Booster Recovery	Weight	Results	Comments
	Black test 1 video	E30-7T	2 eggs, altimeter M	18" chute	connected	380g	778ft, 50sec	Nice flight Score 31
	Black test 2 video	E30-7T	2 eggs, altimeter M	18" chute thin	connected	375g	782ft, 41sec	Nice flight Score 24
	Black test 3 video	E30-7T	2 eggs, altimeter M	18" chute thin	connected	375g	812ft, 43.57sec	Nice flight Qualification Score 12.00
	Blue test 1 no video	E30-7T	2 eggs, altimeter N	24" X-chute	connected	380g	731ft, 43sec	Nice flight, but too low
	Blue test 2 video	E30-7T	2 eggs, altimeter N	24" X-chute	connected	370g	851ft, 55sec	Looked like a nice flight, but too high and one egg cracked Qualification Score DQ
	Blue test 3 video	E30-7T	2 eggs, altimeter N	24" X-chute	connected	375g	854ft, 29sec	Looked like a nice flight, but chute did not deploy correctly, slightly melted.

Altimeter Data New Altimeters (Excel format)