Allan Buckley

20 Pages·2002·9.57 MB·English

Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Fragmenting Payload
Ammunition
Frap
Allan Buckley & Pierre H. Freymond
Oerlikon Contraves Pyrotec AG
CH-8050 Zurich / Switzerland
[email protected]
Folie 1 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 16119 BB
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Frap (Fragmenting Payload) Definition
Frap defines a KE ammunition with an inert payload designed to
fragment and release its energy after target penetration, thereby
creating devastating in-depth secondary effects and significantly
augmenting the lethality of the round against a wide range of targets.
Folie 2 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15952 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Frap Phenomenon
Steel Ball Projectile, a) soft annealed: b) hardened:
This discovery was made by the AFB (Abteilung Für Ballistik/Germany)
early 70’s.
Folie 3 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15953 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Frap Development at Oerlikon
• In the late 70’s Oerlikon discovered that heavy metal subcaliber
penetrators with an axial front cavity (empty or filled with various
materials) created the Frap-effect after target penetration.
• In the 80’s specially treated heavy metal technology was developed to
complete the full scale development of an FAPDS subcaliber ammo
family: 23, 25, 30 & 35mm.
• By the end of the 90’s this technology was also adapted to meet the
very stringent requirements of full caliber 20mmx102 aircraft ammo.
• Currently 27mm x 145 aircraft ammunition with a Frap concept based
on a pre-fragmented payload technology is in development.
Folie 4 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15955 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Current Frap Payload Designs
• Frangible - Specially treated heavy metal
• Subprojectiles - Prefragmented heavy metal
Folie 5 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15956 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Lethal Area of Various Ammunition Types in
Soft Target
Lethality Area:
Ammo Type:
HEI w/PD Fuze
t
n
e
t
a
HEI / SAPHEI
P
w/Base Fuze
n
o
k
i
l
r
e
O

y
l Frap
r
a
E
> 5R
Folie 6 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15957 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Frangible Material Frap:
Full & Subcaliber
35mm FAPDS
Target
Frap
Projectile
Fragment
Trajectories
in a Plate Array Target
Typical Fragment Cloud
(Cascade Model by TNO) of a Frangible Projectile
Folie 7 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15538 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
Frangible Material Effect
Aircraft Target Simulation S1
QT 15436
Frangible Video Clip
Frangible Video Clip
TNO / OCP
TNO / OCP
Folie 8 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15540 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
25mm x 137 Frangible Ammunition FAPDS-T
Effectiveness against BMP 2 at 1200 m
FAPDS-T
Firing Video with
QT 15535 FAPDS-T Ammo
HQETI 1-5T534
FAPDS-T: full penetration
FAPDS-T
HEI-T: no penetration
Folie 9 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 16000 BC
Frap Technology - NDIA 37th Gun & Ammo Syposium - April 15-18, 2002 - Panama City, FL
25mm x 137 Frangible Ammunition FAPDS-T
Effectiveness against Helicopter
Firing Video Target after Firing
M1 15966BA
3 Round Burst at 1200 m Range
Folie 10 P2 16119 BA, P-VP/FD/21, © 2002 Oerlikon Contraves Pyrotec AG, Zürich/Switzerland F2 15547 BC