Table for relative burning rate

The table shows the relative combustion of all propellant powders in the database.

There is no standard for sorting such a table. In the published tables of different powder manufacturers or dealers, it is often very different, depending on the preference of the manufacturer. The most frequently used sorting method is progressivity.

The table therefore allows different sorting according to different factors, which you can select above the table with buttons.

Important Note

The table for the relative burning rate serves only as a rough overview between the different manufacturers. The table makes no statement about how vivacious a powder actually is in the pressure characteristic!

A powder listed in the table at the same level does not therefore mean that it is a 1:1 substitute for a specific powder! It only means that it is probably suitable for a similar application.

Sorts the table by the progressivity factor Bp of a propellant powder. The progressivity factor and its equation is GRT specific and calculated:

Bp = sqrt( (2 * (k - 1)) * pow(Ba * phi(z1) * Qex,2) ) / 10000;

Sorts the table by the (initial) explosive factor Br of a propellant powder. The explosive factor and its equation is GRT-specific and calculated:

Br = sqrt( (2 * (k - 1)) * pow(Ba * Qex,2) ) / 10000;

Sorts the table using the combined Brisance & Progressivity factor Brp of a propellant powder. The combined factor and its equation is GRT specific and is the second absolute moment ¹⁾ of both single factors:

Bp = sqrt( ( pow(Br,2) + pow(Bp,2) ) / 2 );

By combining both factors, a more practicable approximation of the behavior of different propellant powders should be achieved.