The A6M1/A6M1C design and its first launch showed some room for improvement in different project areas:
## Rocket Design
- [ ] Print tail units and do not glue them on
- [ ] Use payload module for safe parachute ejection
## Motor selection
- [ ] Use simulation data for engine selection (C6-3 instead of C6-5 motor)
- [ ] Simulate and test D9 engine
## Altimeter
- [ ] Revise altimeter
# A6M2 Rocket Design
The glued-on fins of the first two launch attempts of A6M1 broke off during the hard landings and some were lost. The glueing process proved difficult and not very accurate. A perfect angles of the fins could not be guaranteed. Thus the fins shall be printed together with the booster section. This is the first design:
