Tuesday, June 24, 2025

Urrf X Launch

 Friday

Der Big Red Max on a 25 year old Kosdon G75-7  - 1700 feet

One Bad Hawk Steampunk on an AT I-211  - 2300 feet

 

 

Saturday

Scratch Built Tomahawk on an EX K712  - using Kosdon K2 Propellant 


Altitude of 4944 feet

 Below is an estimate of the total thrust using the on board altimeter data 



Starting Mass (Kg)4.6
0.01847826087


Final Mass3.75



Total Burn Time2.25 seconds

Recorded AccelFriction Losses (G)Accel GRocket MassNewtonsTotal Thrust
0.101.14.649.5882.4794
0.301.34.5858.372.918429348
7.608.64.56384.5719.22866522
13.3014.34.54636.8831.84376848
14.2015.24.53674.2133.71029565
130144.51618.4430.92219565
12.70.12513.8254.49608.2130.41049185
12.60.2513.854.47606.8030.34008098
12.60.37513.9754.45609.7530.48737391
12.80.514.34.43621.3431.06690543
12.60.62514.2254.42615.5030.77516902
12.80.7514.554.40626.9331.34655163
12.80.87514.6754.38629.6631.48297935
12.6114.64.36623.8031.18988478
12.61.12514.7254.34626.4731.3235962
12.41.2514.654.32620.6331.03140707
12.51.37514.8754.30627.4731.37331522
12.61.515.14.29634.2231.71114891
12.21.62514.8254.27619.9930.99939728
12.31.7515.054.25626.6731.33360924
12.11.87514.9754.23620.8431.04187283
11.8214.84.21610.9030.5451087
11.92.12515.0254.19617.4730.87343533
11.62.2514.854.18607.5930.3793875
11.32.37514.6754.16597.7729.8885087
11.52.5154.14608.2930.41461957
11.32.62514.9254.12602.5530.12741033
112.7514.754.10592.8129.64060598
11.22.87515.0754.08603.1430.15720978
10.6314.64.06581.5029.07478913
10.13.12514.2254.05563.9828.19920707
103.2514.254.03562.3928.11974185
10.13.37514.4754.01568.6528.43267609
9.73.514.23.99555.2827.76393261
9.23.62513.8253.97538.1126.9055538
8.83.7513.553.95524.9526.24767554
8.63.87513.4753.93519.6125.98038587
8.3413.33.92510.4525.52255543
7.94.12513.0253.90497.5424.87690054
7.74.2512.953.88492.3324.61640163
7.64.37512.9753.86490.9324.54644348
7.14.512.63.84474.4623.72292391
7.14.62512.7253.82476.8623.8430538
6.74.7512.453.81464.3023.21505489
6.64.87512.4753.79462.9723.14871848
4.8510.83.77398.8619.94278696
2.25.1258.3253.75305.9437515.2971875










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