Mk81 is intended for use against soft, fragment sensitive targets such as troops, POL depots (petroleum, oil and lubricants), and radar installations. Principal Data Mk81Length1252 mmLength (assembled)1940 mmDiameter225 mmMass Total (nominal)127 KgMass Explosive (nominal)45 Kg Tritonal or H6 or TNTMass Warhead (nominal)81 KgCentre of Gravity (from nose)960 mmSuspension Lugs14 inch (355.6 mm) Standard NATOPacking / Packaging6 ea warheads / steel crate + 6 ea CFA / st.crConical Fin Assembly (CFA)MAU-94/BCFA Span320 mmCFA Cord269 mmCFA Mass10 Kg Ballistic Performance & Launch Parameters Mk81Air Speed150 KTAS to 600 KTASAltitude15000 ftG Load1.2g to 5gAngle Dive45 degAngle Toss60 degRoll165 deg/sRange Slant (max)4750 m Lethality Effects Mk81 (depend on HE charge type)FRAGMENTATION CRATER Grains3 to 300Diameter1.85 m to 4.6 mVelocity670 m/s to 2286 m/sDepth0.61 m to 3.67 mBLAST PENETRATION Pressure at 50 ft (16 m)10 psiSteel Armor Plate25 mmPressure at 100 ft (31 m)3.5 psiConcrete 3000 psi (beton)397 mm