Hi, I'm new to this forum and I'm not sure if this is the correct area for this post but we will see.
I'm working on the design for a LPR removable cluster mod that adds 2 more 18mm motors. It will friction hold on to the single motor in the body tube and have two side mounted motors that will sit externally between the fins of the rocket. The design is to fit my Estes Baby Bertha (BT-60 body) but if I can fit it on other rockets I won't be upset. It will only work on a 4 fin configuration because a 3 fin will not allow a straight line of motors to fit on. I know it will have additional weight and drag from having something sit outside but the boost from two more motors should be able overcome those for a net gain in altitude. The goal is to keep it single stage but give it a boost in altitude because the Baby Bertha is a tad bulky and I am topping out at about 500'.
[o]|x|[o] is a basic sketch of the design. [] represents a motor mount attached to the plywood that sits outside the body tube o is the motor in the mount. || represents the body tube of the rocket itself with x being the main motor in the body tube that the mod fits on to.
I am just getting back in to the hobby slowly after 15 years and getting my step daughter interested. I have never done scratch building and want the opinions of more seasoned builders on this. To see what will and won't work and what I need to change about my plan to make it work. Thank you!
I'm working on the design for a LPR removable cluster mod that adds 2 more 18mm motors. It will friction hold on to the single motor in the body tube and have two side mounted motors that will sit externally between the fins of the rocket. The design is to fit my Estes Baby Bertha (BT-60 body) but if I can fit it on other rockets I won't be upset. It will only work on a 4 fin configuration because a 3 fin will not allow a straight line of motors to fit on. I know it will have additional weight and drag from having something sit outside but the boost from two more motors should be able overcome those for a net gain in altitude. The goal is to keep it single stage but give it a boost in altitude because the Baby Bertha is a tad bulky and I am topping out at about 500'.
[o]|x|[o] is a basic sketch of the design. [] represents a motor mount attached to the plywood that sits outside the body tube o is the motor in the mount. || represents the body tube of the rocket itself with x being the main motor in the body tube that the mod fits on to.
I am just getting back in to the hobby slowly after 15 years and getting my step daughter interested. I have never done scratch building and want the opinions of more seasoned builders on this. To see what will and won't work and what I need to change about my plan to make it work. Thank you!