Projector Type M17 - M22 Series (Obsolete)Launcher Type M17A1 - M22A1; M51A1; M52A1; and M17A1B2 - M22A1B1
U.S. EXPLOSIVE ORDNANCE
PART 3 - PYROTECHNICS
Chapter 9 - GROUND PYROTECHNICS
Section 1 - SIGNALS

High-Bursting Range Signal M27

The Range Signal M27 is similar to the projector-type signals, except that it has no tail assembly. It is fired only from the Ground Signal Projector M1A1. The signal explodes at the top of its rise, producing a flash and a puff of smoke.