whats better screw drive or hydraulic?

[cosworth34677]

i was wondering which one is better for a dump/tipper truck? i was just thinking because again i'm working on my hydraulic dump truck. and after watching about a hour of rc dump truck on youtube got wondering why there is so many screw drive dump trucks on the web?

[egronvold]

Screw drives are way cheaper, and in most cases more powerful. Hydraulics are more scale.

[Izzy]

S-Drives are way less cost, Hydraulics are easier to install since it's just the cylinder to mount within the linkage and the pump, reservoir and valve are remote.