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1

Friday, November 27th 2015, 2:47pm

German High Altitude Research Rockets

Repository for data pertaining to the subject.

2

Friday, November 27th 2015, 2:51pm

Höhenforschungsrakete A4

Overall length (height): 14.325 metres
Telemetry apparatus compartment: 2.310 metres
Control apparatus compartment: 1.400 metres
Fuel tank section: 6.225 metres
Tail section: 4.395 metres
Length of fins: 3.935 metres
Diameter of body (centre): 1,650 metres
Diameter across fins: 3.555 metres

Weights

Telemetry apparatus (maximum): 1,048 kg
Control apparatus: 480 kg
Fuel tanks (empty): 742 kg
Rocket motor: 931 kg
Tail section, with fins: 855 kg
Fuels, total: 8,796 kg
Dry weight: 4.056 kg
Take-off weight: 12,853 kg

Performance

Operational range: 290-306 km
Maximum observed range: 354 km
Operational peak altitude: 97 km
Vertical peak altitude: 186.7 km

Rocket Motor

Overall length: 1.725 metres
Diameter, combustion chamber: 0.940 metres
Diameter, throat: 0.405 metres
Diameter, nozzle exit: 0.735 metres
Fuel consumption: 125 kg/second
Duration: 68 seconds
Exhaust velocity (sea level): 2,000 metres/second
Temperature in the chamber: 2,000 C
Pressure in the chamber: 14.5 atmospheres
Thrust (sea level): 27 tonnes
Acceleration (effective g): 1 – 6
Velocity (maximum): 1,700 metres/second

3

Monday, December 7th 2015, 5:32pm

Summary of Launches, Höhenforschungsrakete A4

Date of Launch -:- Launch Mass (kg) -:- Duration (sec) -:- Peak Altitude (km) -:- Comments
18-Apr-44 -:- 12,659 -:- 19.0 -:- 8.06 -:- Destroyed by RSO
26-Aug-44 -:- 12,909 -:- 59.0 -:- 112.90 -:-
3-Oct-44 -:- 12,907 -:- 60.2 -:- 112.90 -:-
22-Oct-44 -:- 13,248 -:- 58.5 -:- 117.74 -:-
6-Nov-44 -:- 12,659 -:- 66.8 -:- 108.06 -:-
21-Nov-44 -:- 13,109 -:- 60.6 -:- 133.87 -:-
12-Dec-44 -:- 13,043 -:- 68.6 -:- 167.74 -:-

28-Mar-45 -:- 13,182 -:- 67.7 -:- 164.52 -:-
16-May-45 -:- 12,727 -:- 59.8 -:- 104.84 -:-
19-May-45 -:- 13,032 -:- 31.0 -:- 8.50 -:- Destroyed by RSO
23-Jul-45 -:- 13,032 -:- 62.5 -:- 100.00 -:-
23-Sep-45 -:- 13,083 -:- 69.0 -:- 167.74 -:-
28-Nov-45 -:- 13,083 -:- 69.6 -:- 186.70 -:-
10-Dec-45 -:- 13,160 -:- 0.0 -:- 0.00 -:- Destroyed by RSO

31-Mar-46 -:- 13,227 -:- 60.0 -:- 116.13 -:-
15-May-46 -:- 12,889 -:- 59.0 -:- 111.29 -:-
2-Jul-46 -:- 13,112 -:- 63.0 -:- 161.29 -:-
15-Aug-46 -:- 13,057 -:- 63.5 -:- 122.58 -:-
25-Sep-46 -:- 13,392 -:- 66.0 -:- 140.32 -:-
9-Nov-46 -:- 12,817 -:- 62.5 -:- 159.68 -:-
19-Dec-46 -:- 13,182 -:- 67.0 -:- 159.68 -:-

4

Monday, December 7th 2015, 9:56pm

Höhenforschungsrakete A9

Overall length (height): 14.90 metres
Telemetry apparatus compartment: 1.99 metres
Control apparatus compartment: 1.44 metres
Oxygen tank section: 3.47 metres
Fuel tank section: 4.56 metres
Tail section: 3.04 metres
Diameter of body (centre): 0.81 metres
Diameter across fins: 2.80 metres

Weights

Payload (maximum): 230 kg
Control apparatus: 163.2 kg
Structure (empty): 420 kg
Rocket motor: 370 kg
Fuels, total: 3,613 kg
Gross mass: 4,500 kg

Performance

Thrust: 93.00 kN
Apogee: 200 km