World War I
Aerial artillery spotting in WWI had nothing to do with counterbattery missions. Aircraft-directed artillery in WWI involved a lone gun or small battery firing at a pre-registered position, then the airplane radioed corrections after noting the fall of the first shots.
Uh? The above in totally incorrect, the main role of the corps squadron RFC was to acquire and destroy enemy batteries. Eg see http://nigelef.tripod.com/p_artyint-cb.htm Nfe (talk) 08:39, 27 September 2014 (UTC)