R. Meyer J. Köhler A. Homburg Explosives

Thrust
Thrust
Schub; poussée
In rocket technology, the recoil force produced by rearward gas discharge.
It is expressed in tons, kiloponds, or newtons, and is one of
the most important characteristic rocket parameters. The initial weight
of a rocket must remain within a certain relation to the thrust. The
launching thrust chosen is usually higher than the cruising thrust; this
can be achieved by the use of W Boosters.
Thrust Determination
Schubmessung; mesurage de la poussée
The determination of the thrust of a rocket motor involves recording
the time diagram of the force (tons, kp, or newtons) during combustion.
The force is allowed to act on a support, with a pick-up element thrust
cell interposed between them. The measurement is carried out by the
aid of a strain gauge element (variation of resistance with pressure) or
of a piezo-quartz element, and the results are recorded on an oscillograph
connected in a compensation circuit. Modern measuring and
computation techniques yield the total thrust time (impulse) immediately.
The same technique is applied for the determination of the pressure in
the combustion chamber. The pressure cell must be attached to the
previously prepared measuring points on the combustion chamber.
W Solid Propellant Rockets and W Specific Impulse.
TNT
2,4,6-trinitrotoluene; Trinitrotoluol;
trinitrotoluene; Trotyl; tolite
pale yellow crystals; if granulated; flakes
empirical formula: C7H5N3O6
molecular weight: 227.1
energy of formation: –52.4 kcal/kg = –219.0 kJ/kg
enthalpy of formation: –70.6 kcal/kg = –295.3 kJ/kg
oxygen balance: –73,9%
nitrogen content: 18.50%
volume of explosion gases: 825 l/kg
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