\ | TB 9X-94
WAR DEPARTMENT TECHNICAL BULLETIN
P relim in a ry Instructions
FUZE, ROCKET, P.B., T4 & TS
W a r O ep n rd H P u i, W a t ih iii^ n n D, C. * • 28 D ec em b e r 1844
1, GENERAL,
a, F.D. rocket fuzes T4 arid T5 (fig . 1) are VT fuzes for
aircraft firin g of 4* 5-inch Army rocket's listed below. These fuzes
am-approximately 1 second after the rockets are fired and function
automatically on approach to a target.
Fuze
Ifrpe
Use
4,5-inch Rockets^
P.D ., T4
Photoelectric
Plane-to-plane
MB, M8A1, MSA1B1
MSA2, MBA3, T22, T?4
P.D,, T5
Electromagnetic
Plane-to-plane
Plane~tc~ ground
Plane-to-water
MS, MBA3, T22, T74
(MSA1, MBAIB1, H $ A 2 ) w
NOTES *
Fuzes T4 and 15 may be used on the rockets liste d , as issued;
or when modified by 4 .5-inch aircraft rocket kit T23.
^ Fuze T5 can be used, in these; rockets only when the fins hare
been notched (par, 10), or ’when modified by 4.5-inch a ir
craft rocket kit T23.
b. As used in plane-to-plane tactics, P,D, fuzes T4 and T5
function on approach to the enemy plane at a point to in flic t greatest
damage on the target.
c. As used in plane-to-ground or plane-1o-water tactics, P.D,
fuze T5 becomes, in nature of operation, an automatically-set time
fuze, It requires no adjustment, and it produces an airburst at a
height to cause the greatest lethal fragmentation effect against
personnel without top cover, such as gun crews on ship-board and
personnel in foxholes.
d. These fuzes screw directly into a ll standard loaded 4.5-
ineh rockets listed above. They are directly interchangeable with the
F.D,, M4 series rocket fuzes, both physically and b a llistic a lly ,
e. The fuze as issued is not complete. A battery must be
installed prior to use.
..
d e c l a s s i f i e d
Authority s3MHoavivNOii¥N3HiivQ3onaoikS3y
B \ d t C NARA Date
