Hey guys im somewhat new to the model rocket setting and i was wondering if anyone knew of a chart of some sort that goes more into depth about model rocket engines. Im looking to find out how many pounds for example a model G rocket engine could lift. https://www.hobbylinc.com/htm/aro/aro77704.htm is what i need help understanding because after googling as much as i could im still uncertain about the answers im trying to attain.
Specifications
Impulse energy- G
Average thrust in Newtons- 77N (17.3 lbs) ======================================= Does this mean it can lift something up thats 17 pounds?
Delay in seconds between propellant burn-out and activiation of the ejection charge- 4 seconds=======Does this mean the thrust lasts for around 4 seconds before its alttitude starts to deminish?
Propellant type- Redline
For use in- 29mm Composite Motor Rockets
Primary use- Single Stage
Motor diameter- 1.125" 29 mm
Assembled weight- 4.5 oz. 128 g
Maximium liftoff weight- 52 oz. 1474 g======================================== 52oz is about 3.25 pounds does this mean it is what it can lift in wieght?
Aerotech Product Number: 77704
Thrust is given a number in newtons, is this number always attained from the rocket launching from a hard surface? Im assuming that the ammount a rocket can thrust will vary if its launching further from the ground or a hard surface rather than pressed against it, if so is their some kind of calculation i can use to adjust it?
Im re-creating a movie scene from the movie iron man and id like to make a hollow sculpture/mannequin and id like to use a few model rocket engines to launch it as high as i can to get a more real life feel to the shot. Im just trying to calculate how many rocket engines (if at all) i would need to do so. If the maximium liftoff wieght is the correct number for me to launch from the ground then for something that was persay 50lbs according to these properties i would need atleast 15 to 16 engines to even get the thing off the ground. At which point does the 255-272 pounds of thrust mean it will keep the 50 pound object increasing its alttitude for 4 seconds until the engine cuts out?
I will be having 8 points(and how ever many rocket engines attached to each point) of lift off on the movie prop, 4 on the back, 1 on each wrist, and 1 on each ankle. This is important because i was asking about if the engines attached to the back/wrists will get the same thrust as the ones attached to the ankle because of the distance from the ground.
Specifications
Impulse energy- G
Average thrust in Newtons- 77N (17.3 lbs) ======================================= Does this mean it can lift something up thats 17 pounds?
Delay in seconds between propellant burn-out and activiation of the ejection charge- 4 seconds=======Does this mean the thrust lasts for around 4 seconds before its alttitude starts to deminish?
Propellant type- Redline
For use in- 29mm Composite Motor Rockets
Primary use- Single Stage
Motor diameter- 1.125" 29 mm
Assembled weight- 4.5 oz. 128 g
Maximium liftoff weight- 52 oz. 1474 g======================================== 52oz is about 3.25 pounds does this mean it is what it can lift in wieght?
Aerotech Product Number: 77704
Thrust is given a number in newtons, is this number always attained from the rocket launching from a hard surface? Im assuming that the ammount a rocket can thrust will vary if its launching further from the ground or a hard surface rather than pressed against it, if so is their some kind of calculation i can use to adjust it?
Im re-creating a movie scene from the movie iron man and id like to make a hollow sculpture/mannequin and id like to use a few model rocket engines to launch it as high as i can to get a more real life feel to the shot. Im just trying to calculate how many rocket engines (if at all) i would need to do so. If the maximium liftoff wieght is the correct number for me to launch from the ground then for something that was persay 50lbs according to these properties i would need atleast 15 to 16 engines to even get the thing off the ground. At which point does the 255-272 pounds of thrust mean it will keep the 50 pound object increasing its alttitude for 4 seconds until the engine cuts out?
I will be having 8 points(and how ever many rocket engines attached to each point) of lift off on the movie prop, 4 on the back, 1 on each wrist, and 1 on each ankle. This is important because i was asking about if the engines attached to the back/wrists will get the same thrust as the ones attached to the ankle because of the distance from the ground.
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