Wednesday, July 23, 2008

Day 16: Physics Camp

Launched balloons from 4th floor at Physics Camp students. Only one balloon's distance was approximately measured.

Test 14

  • Balloon Weight: 51 g
  • Balloon Name: Sue
  • Balloon Launcher: Adam
  • CW Prop Angle: 180
  • Appx. Distance: ~43 m
Record Breaker!

Tuesday, July 22, 2008

Day 15

Test 1
  • Balloon Weight: 173 g
  • CW Prop Angle: 180
  • Distance to Rail: 19.1 m
  • Distance from Building: 5.95 m
  • Total Distance: 25.05 m

Wednesday, July 16, 2008

Day 14: A Contest

Today we had a contest to determine who could launch a balloon the farthest.

Distance to rail: 19.1 m

Test 1
  • Balloon Weight: 164
  • Balloon Name: Gracie
  • Balloon Launcher: Rick
  • CW Prop Angle: 160
  • Distance from Building: 4.64 m
  • Total Distance: 23.74 m
Test 2
  • Balloon Weight: 167
  • Balloon Name: Monti
  • Balloon Launcher: Rosa
  • CW Prop Angle: 180
  • Distance from Building: 6.15 m
  • Total Distance: 25.25 m
Test 3
  • Tennis Ball Weight: 56 g
  • Tennis Ball Name: Wilson
  • Balloon Launcher: Adam
  • CW Prop Angle: 180
  • Distance from Building: 9.3 m
  • Total Distance: 28.4 m
Winner in the Balloon Category: Rosa
Winner Overall Today: Adam

No one beat Rosa's All Time Record of 36.9 m


Planned Future Modifications:
  • Change the pouch.
  • Modify overall slinging apparatus.
  • Build a second trebuchet with metal throwing arm.

Tuesday, July 15, 2008

Day 13: Frozen Donuts

Tossed donuts frozen in liquid nitrogen

Test 1
  • CW Prop Angle: 180
  • Distance: 22.69 m
Test 2
  • CW Prop Angle: 180
  • Distance: 26.81 m
Test 3
  • CW Prop Angle: 180
  • Distance: 35.95 m
Test 4
  • Launched two donuts frozen together
  • CW Prop Angle: 180
  • Didn't measure

Monday, July 14, 2008

Day 12: Round 2

Test 15
  • Balloon Weight: 270 g
  • Balloon Name: Cookie
  • CW Prop Angle: 180
  • Distance: 13.15 m
Test 16
  • Balloon Weight: 177 g
  • Balloon Name: Champ
  • CW Prop Angle: 180
  • Distance: 26.75
Test 17
  • Balloon Weight: 226 g
  • Balloon Name: Monster
  • CW Prop Angle: 180
  • Distance: 17.5
Test 18
  • Balloon Weight: 321 g
  • Balloon Name: Py
  • CW Prop Angle: 180
  • Distance: ~ 3.5 m
Test 19
  • Balloon Weight: 191g
  • Balloon Name: Dirty Ho
  • CW Prop Angle: 170
  • Distance: 26.25 m
  • Michelle's Theory: Pink balloons go farther.
Test 20
  • Balloon Weight: 320 g
  • Balloon Name: Victor
  • CW Prop Angle: 170
  • Distance: ~ -.5 m
Test 21
  • Balloon Weight: 202 g
  • Balloon Name: Ernie
  • CW Prop Angle: 180
  • Distance: 19.35 m
Test 22
  • Balloon Weight: 222 g
  • Balloon Name: Steve
  • CW Prop Angle: 175
  • Distance: 19.65m
Test 23
  • Balloon Weight: 291 g
  • Balloon Name: Lennie
  • CW Prop Angle: 165
  • Distance: ~ -1.5 m
  • Hit the table
  • Scared Michelle and got her wet.
Test 24
  • Propped track on base
  • Balloon Weight: 220 g
  • Balloon Name: Elmo
  • CW Prop Angle: 180
  • Distance: 18.6 m
Test 25
  • Replaces track in former position
  • Balloon Weight: 168 g
  • Balloon Name: Bruce
  • CW Prop Angle: 175
  • Distance: 25.55
Test 26
  • Balloon Weight: 184 g
  • Balloon Name: Mig
  • CW Prop Angle: 180
  • Distance: 22.05 m
Test 27
  • Balloon Weight: 242 g
  • Balloon Name: Bert
  • CW Prop Angle: 175
  • Distance: 19.15 m
Test 28
  • Balloon Weight: 192 g
  • Balloon Name: Awesomeness
  • CW Prop Angle: 175
  • Distance: 25.62
Test 29
  • Balloon Weight: 1114 g
  • Balloon Name: Big Bird
  • CW Prop Angle: 175
  • Rolled backwards out of pouch and popped
Test 30
  • Tennis Ball Weight: 56
  • Tennis Ball Name: Wilson
  • CW Prop Angle: 175
  • Distance: 27 m
Test 31
  • Tennis Ball Weight: 56
  • Tennis Ball Name: Wilson
  • CW Prop Angle: 180
  • Distance: 26.75 m
Test 32
  • Tennis Ball Weight: 56
  • Tennis Ball Name: Wilson
  • CW Prop Angle: 175
  • Distance: 18.75 m

Day 12

Launched from the 4th floor
Distance to 4th Floor Rail: 5.3 m

Test 1
  • Balloon Weight: 435 g
  • Balloon Name: Fatter Bastard
  • CW Prop Angle:180
  • String got caught in pin holding eye rings.
  • Balloon didn't pop.
Test 2
  • Fixed string
  • Balloon Weight: 435 g
  • Balloon Name: Fatter Bastard (take 2)
  • CW Prop Angle: 180
  • Went straight up.
  • Adam got a little wet.
  • Distance: ~1.5 m
Test 3
  • Balloon Weight: 391 g
  • Balloon Name:Fat Bastard
  • CW Prop Angle: 180
  • Ring slipped off.
  • Balloon didn't pop.
Test 4

  • Balloon Weight: 391 g
  • Balloon Name: Fat Bastard (take 2)
  • CW Prop Angle: 160
  • Distance: 7.3 m
Test 5
  • Balloon Weight: 228 g
  • Balloon Name: Verde
  • CW Prop Angle: 180
  • Distance: 19.55 m
Test 6
  • Balloon Weight: 163 g
  • Balloon Name: Azul
  • CW Prop Angle: 180
  • Distance from building to rail (2nd floor) : 18 m
  • Distance from building: 8.9 m
  • Total Distance: 33.5 m
Test 7
  • Balloon Weight: 134 g
  • Balloon Name: Pepto
  • CW Prop Angle: 180
  • Distance from building: 7 m
  • Distance: 31.5
Test 8
  • Balloon Weight: 46 g
  • Balloon Name: It
  • CW Prop Angle: 180
  • Distance from building to rail (2nd floor): 15.85 m
  • Distance from building: 6 m
  • Total Distance: 28.35
  • Balloon Didn't pop

Test 9
  • Balloon Weight: 46 g
  • Balloon Name: It (take 2)
  • CW Prop Angle: 180
  • Didn't measure distance
Test 10
  • Balloon Weight: 203 g
  • Balloon Name: Green Bomber
  • CW Prop Angle: 180
  • Distance from building: 1m
  • Distance: 23.7 m
Test 11
  • Balloon Weight: 46 g
  • Balloon Name: It (take 3)
  • CW Prop Angle: 180
  • Distance from building: 7 m
  • Distance: 30.7 m
Test 12
  • Balloon Weight: 660 g
  • Balloon Name: Fattest Bastard
  • CW Prop Angle: 180
  • Distance: ~ -3.5 m
  • Height hit on building: ~ 2 m
  • Went backwards and hit building
  • Balloon was too heavy
Test 13
  • Balloon Weight: 266 g
  • Balloon Name: Red Baron
  • CW Prop Angle: 180
  • Distance: 13.0 m
Test 14
  • Balloon Weight: 165 g
  • Balloon Name: Woodstock
  • CW Prop Angle: 180
  • Distance: 31.1 m
Conclusion: Balloons heavier than 391 g don't fly.


Wednesday, July 9, 2008

Day 11

Modifications:
  • Added new CW hanging bars (13")

Test 1

  • Balloon Weight: 167 g
  • CW Prop Angle: 175
  • Distance: 36.9

Test 2
  • Tennis Ball Weight: 56 g
  • CW Prop Angle: 180
  • Distance: ~18.5 m

Tuesday, July 8, 2008

Day 10

Schematics for new CW hanging rods given to Bob. Not added to trebuchet yet.

Test 1

  • Balloon weight: 173 g
  • CW Prop Angle: 160
  • Distance: 16.45 m
Test 2
  • Balloon weight: 260 g
  • CW Prop Angle: 180
  • Went backwards and hit building.
Test 3
  • Balloon weight: 324 g
  • CW Prop Angle: 135
  • Distance: 9.3 m
Test 4
  • Launched a tennis ball instead
  • Tennis ball weight: 56 g
  • CW Prop Angle: 175
  • Distance to Rail: 19.10
  • Distance from Building: 7.05
  • Total Distance: 26.15 m

Monday, July 7, 2008

Day 9

No launches today.

  • Rick has a metal pole we can use for a new throwing arm.
  • Plan on using a tennis ball to keep projectile mass constant for testing.
  • New schematics drawn to give to Bob for new CW hanging bars.
  • Plots made of data (will be added later)

Wednesday, July 2, 2008

Day 8

No launches today.

Attempted to do video analysis on previous launches, however the video analysis software did not like the video files in either mpg or mov formats.

Tuesday, July 1, 2008

Day 7

Modifications:
  • Taped lid onto counterweight can.
Test 1
  • Balloon Weight: 94 g
  • CW Prop Angle: 180
  • Distance: 27.68 m (drop in height from building not accounted for)
  • Building Height: 6.45 m
  • Railing Width: 0.43 m
  • Distance to Rail: 18.2 m
  • Distance from Building: 9.05 m
  • Group of people sat around landing spot. Asked to move.
Test 2
  • Balloon filled with ~25% water, ~75% air
  • Balloon Weight: 209 g
  • CW Prop Angle: 180
  • Distance: 17 m
  • Almost hit Adam
Test 3
  • Balloon Weight: 187 g
  • CW Prop Angle: 180
  • Distance: 18.6 m
  • Landed on rail.
Planned Modifications:
  • Replace PVC throwing arm with metal pole.
  • Glue knots in strings.