154. Ground Signal M17 to M22, inclusive, is shown in Figs. 60 and 61. Each signal is for use with Ground Signal Projectors M3 and M4. The signal is nine inches long, including the tail assembly on which the initials indicating the content of the six-inch body are em-bossed. The expelling charge within the body ignites and ejects the pyrotechnic approxi-mately six seconds after it is fired. The signal list and marking for the series is as follows:

(a) Ground Signal M17 produce a parachute-borne WHITE star of 20,000 candlepower for 20 to 30 seconds. The tail vanes are painted WHITE and embossed with the letters "WP", indicating a white star parachute load.

(b) Ground Singal M18 produces five freely falling WHITE stars in cluster, each star of 18,000 candlepower. The cluster burns for five to seven seconds. The tail vanes are painted WHITE and are embossed with the letters "WS", indicating a white star cluster holding.

(c) Ground Signal M19 produces a parachute-borne GREEN star of 5,000 candlepower which burns for 20 to 30 seconds. The tail is painted GREEN and is embossed with the letters "GP", indicating a green star parachute load.

(d) Grond Signal M20 produces five freely falling GREEN stars in cluster, each star bruning for five to seven seconds with 7,000 candlepower. The tail is painted GREEN and embos-sed with the letters "GS", to indicate a GREEN star cluster loading.

(e) Ground Signal M21 produces a parachute-borne AMBER star of 4,000 candlepower for 20 to 30 seconds. The tail is painted YELLOW and embossed with the letters "AP", indi-cating an AMBER parachute load.

(f) Ground Signal M22 produce five free-falling AMBER stars in cluster, each star burning for five to seven seconds with 2,000 candlepower. The tail is painted YELLOW and em-bossed with the letters "AS", to indicate an AMBER star cluster load.

Figure 60. – Signal, Ground, White Star, Parachute, M17

Figure 61. – Signal, Ground, White Star, Parachute, M17A1