Max. liftoff weight

[Raais]

Hello everyone!

My question is what should happend if for some reason the rocket exceeds the max. liftoff weight for 50g or 100g? I'm planning to use an AeroTech G74-6W but my model weihts a few more.

By the way, why the motor delay reduces the max liftoff weigth?

Thank you!

 

[Nytrunner]

If your rocket exceeds the max liftoff weight, it may not reach sufficient speed to be stable in flight. It could arc over severely and A) not reach as high an altitude or B) fly horizontally (danger)

A longer delay means longer time between burnout and ejection charge.

A heavier rocket has a shorter coast time to apogee and a long delay will lead to it arcing over and heading towards the ground before the parachute is ejected. This leads to body tube damage, broken chock cords, or other problems.

 

[Raais]

Oh, thank you!

So you wouldn't recomend to exceed the maximun liftoff weight, right?

 

[Nytrunner]

As a new rocketeer, it is safe to stay with the liftoff weights.

However, I highly recommend using thrustcurve.org or downloading OpenRocket and simulating your rockets to learn more about the flights and choose motors wisely.

 

[Raais]

Thank you for helping me a bit, I appreciate it.