Bug #13489
Adding more than 2 Kickback boosters does not produce additional thrust
0%
Description
After building a launch vehicle (without boosters) I figured that I would need additional Kickback boosters for my required dv. After adding only 2 Kickback booster I had a reasonable amount of lift-off thrust. However, I felt I was cutting it fine on the dv and decided to add 2 additional Kickback boosters (now 4 in total) to my launch vehicle. I kept all thrust limits for all parts exactly the same and, on paper, this vehicle should have more than enough thrust-to-weight ratio and dv for my needs. However, the lift-off thrust was way WORSE than the 2x Kickback booster-only vehicle. Either I am horrible with calculations, or extra boosters breaks gravity/thrust.
I've attached the craft files for both the 2x Booster and 4x Booster version where the rest of the vehicle was identical for both files.
History
#1
Updated by bewing almost 7 years ago
Updated by - Status changed from New to Not a Bug
- % Done changed from 0 to 100
The thrust from your extra two kickbacks is being obstructed by the engines for your twin boar. This cancels their thrust. So you are lifting the mass of the extra two kickbacks with no extra thrust.
You need to place your kickbacks so that their thrust is not obstructed by parts below them.