December 8, 2024 @ 1:00PM to 2:30PM
After the first launch, we weren't sure whether the problem was really that the motor wasn't strong enough or the sputtering just lowered the performance.
- At least 2mph wind. Gusts sometimes up to 5mph.
- Overcast.
- 51°F.
- 75% humidity. It had been raining a lot lately.
- 30.2" pressure.
- Eggs: 60g & 59g.
- 582g with motor & eggs.
- We attached an extra pipe to our rail this time so the usable length on the rail would be better.
- First flight: F41-5W from the same pack of two we used last time.
- Second flight: F41-5W from a different package, but bought from the same order. We were thinking the package used for the first two flight might have been bad because they kept sputtering.
Results:
- Both flights kind of curved over in the same direction, Dave said likely just because of the wind.
- First flight: unfortuntely this motor stuttered again. Not terribly, but still suboptimal and we want this to be as consistent as possible.
- First flight: 638' apogee.
- First flight: The sections separated but only the smaller pink parachute opened up. Somehow with just one 12" parachute for the entire rocket both eggs survived and nothing else broke, even with the Pnut saying we came down at 32ft/s!
- First flight: 26 seconds.
- Second flight: The motor from the other package luckily didn't stutter.
- Second flight: 688' apogee.
- Second flight: Both eggs survived of course.
- Second flight: 42½ seconds.
We determined that even without the motors sputtering, they're just not powerful enough to get us to our goal of 790'. Part of the problem is the OpenRocket model I made said 510g even when I weighed out everything used to contruct the rocket but for some reason it's actually at about 580g which is reducing our apogee significantly.
2.pf2, 3.pf2, actually like that.ork
