Sonstiges > Die Eisdiele

Numero Trentadue

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raZr:
5mm:

Parameters
Bottle Volume   2800 cc
Diameter   120 mm
Water Fill   900 cc
Launch Pressure   608 Kpa (88 PSI, 6.00 Bar)
Nozzle diameter   5.0 mm
Nozzle viscous losses   0.16
Dry mass   300.0 grams
Coefficient of drag   0.30
Initial Velocity   0.0 m/s
Launch Tube length   0.0 mm
Launch Tube diameter   5.0 mm

Results
Launch and thrust phase
Initial thrust 20.6N
Initial burn acceleration 7.4 m/s2 (0.8G)
Average acceleration 16.5 m/s2 (1.7G)
Burnout
Burnout after 1631 milliseconds
Burnout Velocity 27.0 m/s (97.1 kmh, 60.4mph)
Burnout Altitude 13.7 metres (44.9 feet)
Burnout acceleration 23.6 (2.4G)
Drag force at burnout 0.6 newton (0.1kgf)
Deceleration due to drag 0.2G
Speed increase due to air pulse 7.0m/s
Coast
Drag-free coast 37.1 metres to apogee at 50.8 metres after 4.4 seconds
Actual apogee at 43.56 metres (142.9 feet) after 4.03 seconds
Crashdown
Crashdown speed 25.4 m/s (91.5 kmh, 56.9mph)
Total flight time 7.15 seconds

11mm:
Parameters
Bottle Volume   2800 cc
Diameter   120 mm
Water Fill   900 cc
Launch Pressure   608 Kpa (88 PSI, 6.00 Bar)
Nozzle diameter   11.0 mm
Nozzle viscous losses   0.16
Dry mass   300.0 grams
Coefficient of drag   0.30
Initial Velocity   0.0 m/s
Launch Tube length   0.0 mm
Launch Tube diameter   11.0 mm

Results
Launch and thrust phase
Initial thrust 100.6N
Initial burn acceleration 74.0 m/s2 (7.5G)
Average acceleration 119.0 m/s2 (12.1G)
Burnout
Burnout after 336 milliseconds
Burnout Velocity 40.0 m/s (144.0 kmh, 89.5mph)
Burnout Altitude 5.1 metres (16.7 feet)
Burnout acceleration 156.0 (15.9G)
Drag force at burnout 1.8 newton (0.2kgf)
Deceleration due to drag 0.6G
Speed increase due to air pulse 7.0m/s
Coast
Drag-free coast 81.6 metres to apogee at 86.6 metres after 4.4 seconds
Actual apogee at 59.71 metres (195.9 feet) after 3.48 seconds
Crashdown
Crashdown speed 28.4 m/s (102.1 kmh, 63.4mph)
Total flight time 7.21 seconds

nemon:
ich denke, razr braucht mehr tankvolumen und mehr ladedruck. kannst ja auf 1,5l-flaschen umsteigen. apropos düse, hast du mal überlegt, die jetzige düse aufzubohren? ich denke, etwas mehr innendurchmesser ist bei den teilen durchaus möglich. und was den druck angeht: die flaschen halten mehr aus.

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