n3tjm
Papa Elf
It took 2 tries to get my L2. It also took me 2 tries to get my L3.
My first L2 failure was with a bad CTI J285. Motor immediately catoed. Shortly after they had a huge recall. I still have a 6 grain load from those bad batches that a vendor gave me. The rocket was repaired and I then planned to try again with an Aerotech J350. But then there was issues with J350's coating. So Aerotech enlarged the cores to prevent catos. I had no way to get my grains back to my vendor, so I bought 2 inert I161 reloads from Aerotech and they sent me the replacement J350 grains, and I used the old J350 grains I had to make two I161 loads. Second attempt with the J350 was a sucess.
My first L3 try was with an AMW M1350. I used two different altimeters for deployment. A G-wiz and Pico. Turns out that the G-wiz did not work in dual deployment mode when using just one battery so it never fired its main charge. The Pico also didn't fire off its main charge, and it was discovered that after a certain number of samples the Pico stopped working. That problem was fixed with a firmware update afterwards.
Second attempt was with different rocket with an CTI N1800 and it was a success.
My first L2 failure was with a bad CTI J285. Motor immediately catoed. Shortly after they had a huge recall. I still have a 6 grain load from those bad batches that a vendor gave me. The rocket was repaired and I then planned to try again with an Aerotech J350. But then there was issues with J350's coating. So Aerotech enlarged the cores to prevent catos. I had no way to get my grains back to my vendor, so I bought 2 inert I161 reloads from Aerotech and they sent me the replacement J350 grains, and I used the old J350 grains I had to make two I161 loads. Second attempt with the J350 was a sucess.
My first L3 try was with an AMW M1350. I used two different altimeters for deployment. A G-wiz and Pico. Turns out that the G-wiz did not work in dual deployment mode when using just one battery so it never fired its main charge. The Pico also didn't fire off its main charge, and it was discovered that after a certain number of samples the Pico stopped working. That problem was fixed with a firmware update afterwards.
Second attempt was with different rocket with an CTI N1800 and it was a success.