When the chart specifies the Est. Max. Lift Wt., does that mean the weight of the rocket without the engine - or the weight of the rocket with the engine?
Accepting that as gospel per Estes, and you have a model that is slightly over the limit - such as a 4.10 oz model launching on an Estes motor with a 4.0 limit - is that estimate mitigated by factors such as an extra-long launch rod, or by anything else?This showed up below your question.
https://www.rocketryforum.com/threads/how-to-interpret-the-max-liftoff-wgt-on-packaging.178912/
Accepting that as gospel per Estes, and you have a model that is slightly over the limit - such as a 4.10 oz model launching on an Estes motor with a 4.0 limit - is that estimate mitigated by factors such as an extra-long launch rod, or by anything else?
Do atmospheric conditions make a difference?Take that max lift off weight data with a healthy grain of salt - it’s more a rule of thumb than empirical data. A simulation run in RocSim or Open Rocket or even on Thrustcurve is going to give you a better picture of any given rocket’s performance on any given motor.
Of course. Ever see a rocket weathercock in the wind? Slow, heavy rockets are the worst!Do atmospheric conditions make a difference?
Got it. But I'm thinking of barometric pressure, humidity and temperature also.Of course. Ever see a rocket weathercock in the wind? Slow, heavy rockets are the worst!
Got it. But I'm thinking of barometric pressure, humidity and temperature also.
Got it. I can take it from here.Then use a Sim you can change those items on. most of those above effect light fast rockets not heavy ones.
Barometric pressure definitely has an effect. I haven't noticed major differences in swings of like 5-10 mb at ground level, maybe a difference of a few meters in apogee. you would certainly see differences when comparing a launch at sea level vs a launch at 1000ft elevation though. In general, less dense air means there's less for the rocket to punch through, but also make the fins less effective.Got it. But I'm thinking of barometric pressure, humidity and temperature also.
Estimated Maximum Liftof Weight means "Climbing up the Launch Rod, with FIRE coming out of its behind" !When the chart specifies the Est. Max. Lift Wt., does that mean the weight of the rocket without the engine - or the weight of the rocket with the engine?
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