A
2020-11-26 13:00:50 UTCas19921025
cooool
Variable AeroSpike cowl to compensate for chamber pressure and altitude.
You can see how the petals move at https://www.youtube.com/watch?v=I2kJoB0k8mA. The petals in the video was my first attempt. The petals on this model do not have the gaps shown in the video.