Acronym	girpdi
Name	great rhombiprismic disicosatetrachoron
Circumradius	sqrt[8-3 sqrt(2)] = 1.938391
General of army	gipti
Colonel of regiment	gipti
Face vector	576, 1440, 912, 144
External links

As abstract polytope girpdi is isomorphic to sirpdi, thereby replacing octagons by octagrams, resp. replacing the quitco by girco and groh by sroh.

Incidence matrix

576 |   2   2   1 |   2   2   2   2 |  1  2  2
----+-------------+-----------------+---------
  2 | 576   *   * |   1   1   1   0 |  1  1  1
  2 |   * 576   * |   0   1   1   1 |  1  1  1
  2 |   *   * 288 |   2   0   0   2 |  0  2  2
----+-------------+-----------------+---------
  6 |   3   0   3 | 192   *   *   * |  0  1  1
  8 |   4   4   0 |   * 144   *   * |  1  0  1  {8/3}
  4 |   2   2   0 |   *   * 288   * |  1  1  0
  4 |   0   2   2 |   *   *   * 288 |  0  1  1
----+-------------+-----------------+---------
 24 |  24  24   0 |   0   6  12   0 | 24  *  *  (groh)
 12 |   6   6   6 |   2   0   3   3 |  * 96  *  (hip)
 48 |  24  24  24 |   8   6   0  12 |  *  * 24  (quitco)