For this I'm in a group with Kailee and Handy, We were watching different video's on YouTube about motors and then we found one that was called Rocket Candy(66% PotassiumN Nitrate, 34% Sorbitol and 1% Iron Oxide) it is red and very very sticky, it is not at powerful as the other motors. I believe most of the other motors got 1200+ thrust and we only got 600 Thrust but our burn time was a little over twice their burn time. Our estimated peak altitude is about 730 feet in the air but to achieve that number we will need to make the rocket out of balsa wood which is very light, but if it doesn't come down nice it will most likely be in a thousand pieces when it hits the floor.
LOOKING BACK: WHAT HAPPEN?
Well we tested our motor about 10 times, At the beginning it was very very bad, It was only about 300 thrust, then we made 3 more motors, tried different stuff each time at first we started off with a end burner but then we switched to a full core which worked a lot better but then we tested it out and the thrust was barely around 450g. We wanted more thrust so we decided to make the core smaller so the final core was 3/16 which is really small, so small it has a chance at exploding almost everytime, thank god that never happen to us.
LOOKING BEYOND:
Well the first time I seen this motor on youtube it looked really cool to me, I think I liked it so much because it produced a lot of smoke but then on the video the person was putting it in was a over sized Lego and I was wonder if it had a lot of thrust or if it was even going to lift the rocket in the air?
LOOKING INWARD:
I think as a group we did really good, because we each had to do a lot of stuff for this motor, we constantly talked to JP and Andrew about our motor, so that was a lot of running back and forward of just trying to get this motor where it at right now, Not a one part of the class were we sitting down, we were always trying new stuff on this motor, like other groups only tried their motor like 3 times, we did it 10 TIMES!
LOOKING OUTWARD:
I worked with Kailee and Handy( Mano) like I said before we r=did really really good as a group for this part of the project, we all worked equally, most of the time I cleaned the drill bits but yeah we worked good all together.
LOOKING FORWARD:
Well the only thing I would change to get better results is try to put more iron oxide in the motor. I think that will help a lot but the motor will 99% explode. Other than do that I wouldn't change nothing at all, Everything went perfectly fine for this part of the rocket/project.
For the next experiment in this class I will try to stay in the same group because I feel like I work better and they help me a lot on staying on topic and actually working inn class instead of fooling around and or leaving the class all the time and not doing any work at all.
Rocket Body Radius (m) = 0.02
Rocket Body Cross sectional area (m) = 0.001256637061
Fill in the boxes below to have a peak altitude for your rocket be calculated.
Motor Average Thrust(N) = 3.2 this is determined from the thrust curve data
Rocket Mass(kg) = 0.015 this is a variable, depending on how massive you want your rocket to be 1000
Rocket Body Cross Sectional Area(m^2) = 0.0013 A = πr^2; again depending on how big you want your rocket to be 9.803921569
Burntime(s) = 3.5 determined from the thrust curve also
Motor Mass (kg) = 0.08 These values are assumed
Motor Dry Mass (kg) = 0.055 The dry mass is a motor without fuel
Rocket Peak Altitude Prediction = 215.4176492 meters
706.7508401 feet
LOOKING BACK: WHAT HAPPEN?
Well we tested our motor about 10 times, At the beginning it was very very bad, It was only about 300 thrust, then we made 3 more motors, tried different stuff each time at first we started off with a end burner but then we switched to a full core which worked a lot better but then we tested it out and the thrust was barely around 450g. We wanted more thrust so we decided to make the core smaller so the final core was 3/16 which is really small, so small it has a chance at exploding almost everytime, thank god that never happen to us.
LOOKING BEYOND:
Well the first time I seen this motor on youtube it looked really cool to me, I think I liked it so much because it produced a lot of smoke but then on the video the person was putting it in was a over sized Lego and I was wonder if it had a lot of thrust or if it was even going to lift the rocket in the air?
LOOKING INWARD:
I think as a group we did really good, because we each had to do a lot of stuff for this motor, we constantly talked to JP and Andrew about our motor, so that was a lot of running back and forward of just trying to get this motor where it at right now, Not a one part of the class were we sitting down, we were always trying new stuff on this motor, like other groups only tried their motor like 3 times, we did it 10 TIMES!
LOOKING OUTWARD:
I worked with Kailee and Handy( Mano) like I said before we r=did really really good as a group for this part of the project, we all worked equally, most of the time I cleaned the drill bits but yeah we worked good all together.
LOOKING FORWARD:
Well the only thing I would change to get better results is try to put more iron oxide in the motor. I think that will help a lot but the motor will 99% explode. Other than do that I wouldn't change nothing at all, Everything went perfectly fine for this part of the rocket/project.
For the next experiment in this class I will try to stay in the same group because I feel like I work better and they help me a lot on staying on topic and actually working inn class instead of fooling around and or leaving the class all the time and not doing any work at all.
Rocket Body Radius (m) = 0.02
Rocket Body Cross sectional area (m) = 0.001256637061
Fill in the boxes below to have a peak altitude for your rocket be calculated.
Motor Average Thrust(N) = 3.2 this is determined from the thrust curve data
Rocket Mass(kg) = 0.015 this is a variable, depending on how massive you want your rocket to be 1000
Rocket Body Cross Sectional Area(m^2) = 0.0013 A = πr^2; again depending on how big you want your rocket to be 9.803921569
Burntime(s) = 3.5 determined from the thrust curve also
Motor Mass (kg) = 0.08 These values are assumed
Motor Dry Mass (kg) = 0.055 The dry mass is a motor without fuel
Rocket Peak Altitude Prediction = 215.4176492 meters
706.7508401 feet