Quote:
Originally Posted by Team Sergeant
You owe me five bucks. 
FM 7-90
TACTICAL EMPLOYMENT OF MORTARS
B-11. ILLUMINATION
Illumination rounds can be used to disclose enemy formations, to signal, or to mark targets. There are illumination rounds available for all mortars.
a. The 60-mm illumination round available now is the standard cartridge, illuminating, M83A3. This round has a fixed time of delay between firing and start of the illumination. The illumination lasts for about 25 seconds, and it provides moderate light over a square kilometer. The gunner must adjust the elevation to achieve height-of-burst changes for this round. The best results are achieved with practice. The maximum range of the illumination round is 950 meters. This range as well as the minimum range of 725 meters must be taken into account when planning illumination support. |
How about a Guiness instead?