Since the weather has not been favorable this week, we have been doing further development in the workshop. We are currently rebuilding the Polaron rocket and adding three external boosters. With a number of static tests earlier this year we noticed that Polaron was able to produce around 7 seconds of thrust when using foam and a 7mm nozzle. Because of the low peak thrust during take-off we are assiting the rocket with three boosters each with a 13mm nozzle.
We also tested a hybrid splice technique for joining bottles.
The full update including pictures are here: