The most energy intensive stage of the launch is getting up in the air and gaining speed. Having it go off first decreases the time it takes to get up to speed and increases the flight range. Hauling the extra weight of the chemical booster could reduce the overall flight speed and range of the drone.
Having a booster rocket that is jettisoned adds a certain amount of inherent risk and complication. It needs to detach cleanly when it is finished every time. It also need to reliably remain attached during transport and launching.
The weight of the rocket equipment portion probably doesn’t add up to much and can be compensated for with a slightly smaller warhead.
If I had to guess, it’s likely a larger rocket motor from a common hobby rocket. Something like this or larger.
The most energy intensive stage of the launch is getting up in the air and gaining speed. Having it go off first decreases the time it takes to get up to speed and increases the flight range. Hauling the extra weight of the chemical booster could reduce the overall flight speed and range of the drone.
Having a booster rocket that is jettisoned adds a certain amount of inherent risk and complication. It needs to detach cleanly when it is finished every time. It also need to reliably remain attached during transport and launching.
The weight of the rocket equipment portion probably doesn’t add up to much and can be compensated for with a slightly smaller warhead.
If I had to guess, it’s likely a larger rocket motor from a common hobby rocket. Something like this or larger.
https://www.apogeerockets.com/Rocket_Motors/54mm_Motors
Plentiful, easy to source, and relatively cheap.