The central body tube is a double walled 29mm centered in 38mm so the exposed tube at the booster attachment point is 38mm transitioning to 98mm for the main propulsion unit aft and the payload bay fore... so it's a simple straight path for the ejection charge and didn't require any special precautions. The boosters, on the other hand, had very small space for the 18" drogue shoots and had to be packed tightly.nice! The transition is a great touch. I wonder, did you have do anything internally to protect it from the ejection charge? It looks narrower than a 29mm tube.
Ahhh. I didn’t appreciate the scale.The central body tube is a double walled 29mm centered in 38mm so the exposed tube at the booster attachment point is 38mm transitioning to 98mm for the main propulsion unit aft and the payload bay fore... so it's a simple straight path for the ejection charge and didn't require any special precautions. The boosters, on the other hand, had very small space for the 18" drogue shoots and had to be packed tightly.
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