DX-1 EE

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Contents

Engine Specification Form (ESF)

Engine Name:DX-EE
Type: Solid
Propellant:KNO3 + Sorbitol
Designers:Mark Uitendaal
Daan Maessen
Flown in rockets:CanSat Launcher V2
CSL V3
Tested?:Yes (two static tests + two instrumental tests
Documentation:Test report

Dimensions engine

Nozzle:
Total length [mm] 62
Length expansion part [mm] 35
Maximum diameter [mm] 70
Length throat [mm]  ??
Diameter throat [mm] 18
Bolt holes diameter [mm] * #4 x 8
Weight [kg]0,896
Casing:
Outer diameter [mm] 70
Length [mm] 770
Weight [kg] 2,452
Aft-closure:
Total length [mm] 54
Maximum diameter [mm] 70
Bolt holes diameter [mm] * #4 x 10
Weight [kg]1,308


Dimensions propellant grains

ComponentsMix-ratioOuter diameterInner diameterLength GrainNet Weightmould weight
[mm][mm][mm][gram][gram]
KNO3 -sorbitol6020100

Performance (as designed)

Maximum thrust [N] 1645
Burn time [s] 2.2
Total Impulse [Ns]2859
Specific Impulse [s] 109
Massa ratio [empty/loaded]2/3
Maximum pressure [N/m2] 5.48*106
Maximum temperature [C˚] 1520


Test data

Most important data of the test performed in august 2006 (reference: test report):

Maximum thrust [N] 1640
Burn time [ms] 2500
Total Impulse [Ns] 2400
Specific Impulse [s] 102
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