|Ignition of the Gnome's motor (Click to enlarge).||Apogee Apprentice clears the rod on a B6-4|
(Click to enlarge).
Which is more than I can say for those of mine and Duane...
First up was the rocket Duane had flown at the Geezer TARC launch on September 14, this time loaded with an Aerotech reloadable E28-7. I had passed along a tip based on data I collected at the Geezer TARC launch, which was to lighten the rocket down from 447 grams and consider a different motor. He listened, as the rocket weighed in 19 grams lighter and the E28 had 6 more newton seconds total impulse. This made all the difference in the world - peak altitude was 815 feet, very close to the 800 foot goal. Quite a difference from the dismal 665 feet apogee from the previous Saturday. Unfortunately, the shock cord attachment pulled loose, causing the sustainer to tumble to the ground and the payload section to slowly descend under the parachute. It took about 10 minutes for Duane to locate the sustainer in the weeds; fortunately, there was no damage.
|Duane's rocket clears the rail (Click to enlarge).|
|Oeuf under composite cluster power! (Click to enlarge).|
The final flight of the morning was Duane's unflown entry. It too was loaded with an Aerotech E28, and had the best altitude of all the flights - 793 feet, just 7 feet off the mark. This time the recovery system worked perfectly, making for a nice end to our hour long launch.
|Duane's 2nd rocket starts its journey (Click to enlarge).|
Here's the result:
|Simple Geezer TARC altitude analysis (Click to enlarge).|
I'm glad something useful came out of that rainy day and those broken eggs.