AVIATION ORDNANCE STUDY GUIDE 2026 QUESTIONS
AND SOLUTIONS SCORED A+
✔✔MK-122 MOD 0 - ✔✔arming safety switch that connects the fuze control circuits of
the aircraft to the fuze circuits of the bomb.
✔✔DSU-33 - ✔✔Doppler Sensing Unit- battery powered, Doppler radar. Found in the
nose, used with FMU-139.
✔✔Components of a DSU-33 - ✔✔Radome, Sensor body, and Observation window.
✔✔What is a nose plug? - ✔✔Used to plug nose of the bomb on bombs with tail fuzing
delivered on hard targets.
✔✔Types of Nose Plugs - ✔✔Ogive(pointy) and MXU735A/B(rounded)
✔✔Purpose of Fin Assemblies - ✔✔provide stability to the bomb and cause it to fall in a
smooth definite curve.
✔✔Characteristics of a Conical Fin Assembly - ✔✔Non-retarded, provide the capability
of high-altitude bombing.
✔✔How many conical fin assemblies are there? - ✔✔Five: MK-82, BSU-33, MAU-93/B,
MK-83, and MK-84.
✔✔BSU-86 and BSU-85 - ✔✔Snakeye(BSU-86), both can be used as a conical fin.
Allows to the pilot to drop in a retarded & non-retarded mode.
✔✔GBU - ✔✔Guided Bomb Units: primarily for precision bombing of strategic and
tactical targets.
✔✔Components of a GBU - ✔✔Computer control group, warhead, fuze, and Airfoil
Group(AFG)
✔✔Guided Bomb Units: - ✔✔GBU-12,16,10, and 24.
✔✔Joint Direct Attack Munitions: - ✔✔GBU-38,32, and 31
✔✔Laser Joint Direct Attack Muntions and Dual Mode Laser Guided Bombs: - ✔✔GBU-
52 and 54
✔✔GBU-12 - ✔✔MK-82 or BLU-111 body, FMU-139 Fuze, Laser guided, CCG/AFG
✔✔GBU-16 - ✔✔MK-83 or BLU-110 body, FMU-139 Fuze, Laser Guided, CCG/AFG
, ✔✔GBU-10 - ✔✔MK-84 or BLU-117 body, FMU-139 Fuze, Laser Guided, CCG/AFG
✔✔GBU-24 - ✔✔BLU-109 or BLU-116, FMU-143 Fuze, Laser Guided, CCG/AFG
✔✔GBU-38 - ✔✔MK-82 or BLU-111, FMU-139 Fuze, GPS Guided, DSU-
33/OGIVE/MXU-735
✔✔GBU-32 - ✔✔MK-83 or BLU-110, FMU-139, GPS Guided, DSU-33/OGIVE/MXU-735
✔✔GBU-31 - ✔✔MK-84 or BLU-117/109, FMU-139 or 143 Fuze, GPS Guided, DUS-
33/OGIVE/MXU-735
✔✔GBU-52 - ✔✔MK-82 or BLU-111/126, FMU-139 Fuze, Laser & GPS Guided,
CCG/AFG
✔✔GBU-54 - ✔✔MK-82 or BLU-111/126, FMU-139 Fuze, Laser & GPS Guided, DSU-
38
✔✔Practice Bombs - ✔✔(inert bombs) designed to simulate the ballistic performance
and characteristics of service weapons.
✔✔#1 Problem When Handling Practice bombs - ✔✔Proven to be one of the most
hazardous pieces of ordnance items to be handled daily due to complacency.
✔✔How are Practice bombs delivered? - ✔✔Both high and low altitude.
✔✔Practice Bomb Signal Cartridges - ✔✔Used for day and night operations as a visual
indication of bomb impact. 3 types.
✔✔MK-4 Signal Cartridge - ✔✔"Mark in the dark"- used for night operations. Filled with
red phosphorous. Produces a 2,500F flame up to 20ft long.
✔✔CXU-3A/B Signal Cartridge - ✔✔Long and Cylindrical. Day time use. Filled with 1oz
of titanium tetra chloride and produces dense white smoke.
✔✔CXU-4A/B - ✔✔"spotting charge". Short and round. Filled with titanium tetrachloride
and produces a dense white smoke.
✔✔Types of Practice Bombs - ✔✔6 Total. MK-76 MOD 5, BDU-33, BDU-48, BDU-45,
MK-80/BLU-100, and Laser-Guided Training Rounds.
✔✔MK-76 MOD 5 - ✔✔25lb bomb, uses both the MK-4 and CXU-3
AND SOLUTIONS SCORED A+
✔✔MK-122 MOD 0 - ✔✔arming safety switch that connects the fuze control circuits of
the aircraft to the fuze circuits of the bomb.
✔✔DSU-33 - ✔✔Doppler Sensing Unit- battery powered, Doppler radar. Found in the
nose, used with FMU-139.
✔✔Components of a DSU-33 - ✔✔Radome, Sensor body, and Observation window.
✔✔What is a nose plug? - ✔✔Used to plug nose of the bomb on bombs with tail fuzing
delivered on hard targets.
✔✔Types of Nose Plugs - ✔✔Ogive(pointy) and MXU735A/B(rounded)
✔✔Purpose of Fin Assemblies - ✔✔provide stability to the bomb and cause it to fall in a
smooth definite curve.
✔✔Characteristics of a Conical Fin Assembly - ✔✔Non-retarded, provide the capability
of high-altitude bombing.
✔✔How many conical fin assemblies are there? - ✔✔Five: MK-82, BSU-33, MAU-93/B,
MK-83, and MK-84.
✔✔BSU-86 and BSU-85 - ✔✔Snakeye(BSU-86), both can be used as a conical fin.
Allows to the pilot to drop in a retarded & non-retarded mode.
✔✔GBU - ✔✔Guided Bomb Units: primarily for precision bombing of strategic and
tactical targets.
✔✔Components of a GBU - ✔✔Computer control group, warhead, fuze, and Airfoil
Group(AFG)
✔✔Guided Bomb Units: - ✔✔GBU-12,16,10, and 24.
✔✔Joint Direct Attack Munitions: - ✔✔GBU-38,32, and 31
✔✔Laser Joint Direct Attack Muntions and Dual Mode Laser Guided Bombs: - ✔✔GBU-
52 and 54
✔✔GBU-12 - ✔✔MK-82 or BLU-111 body, FMU-139 Fuze, Laser guided, CCG/AFG
✔✔GBU-16 - ✔✔MK-83 or BLU-110 body, FMU-139 Fuze, Laser Guided, CCG/AFG
, ✔✔GBU-10 - ✔✔MK-84 or BLU-117 body, FMU-139 Fuze, Laser Guided, CCG/AFG
✔✔GBU-24 - ✔✔BLU-109 or BLU-116, FMU-143 Fuze, Laser Guided, CCG/AFG
✔✔GBU-38 - ✔✔MK-82 or BLU-111, FMU-139 Fuze, GPS Guided, DSU-
33/OGIVE/MXU-735
✔✔GBU-32 - ✔✔MK-83 or BLU-110, FMU-139, GPS Guided, DSU-33/OGIVE/MXU-735
✔✔GBU-31 - ✔✔MK-84 or BLU-117/109, FMU-139 or 143 Fuze, GPS Guided, DUS-
33/OGIVE/MXU-735
✔✔GBU-52 - ✔✔MK-82 or BLU-111/126, FMU-139 Fuze, Laser & GPS Guided,
CCG/AFG
✔✔GBU-54 - ✔✔MK-82 or BLU-111/126, FMU-139 Fuze, Laser & GPS Guided, DSU-
38
✔✔Practice Bombs - ✔✔(inert bombs) designed to simulate the ballistic performance
and characteristics of service weapons.
✔✔#1 Problem When Handling Practice bombs - ✔✔Proven to be one of the most
hazardous pieces of ordnance items to be handled daily due to complacency.
✔✔How are Practice bombs delivered? - ✔✔Both high and low altitude.
✔✔Practice Bomb Signal Cartridges - ✔✔Used for day and night operations as a visual
indication of bomb impact. 3 types.
✔✔MK-4 Signal Cartridge - ✔✔"Mark in the dark"- used for night operations. Filled with
red phosphorous. Produces a 2,500F flame up to 20ft long.
✔✔CXU-3A/B Signal Cartridge - ✔✔Long and Cylindrical. Day time use. Filled with 1oz
of titanium tetra chloride and produces dense white smoke.
✔✔CXU-4A/B - ✔✔"spotting charge". Short and round. Filled with titanium tetrachloride
and produces a dense white smoke.
✔✔Types of Practice Bombs - ✔✔6 Total. MK-76 MOD 5, BDU-33, BDU-48, BDU-45,
MK-80/BLU-100, and Laser-Guided Training Rounds.
✔✔MK-76 MOD 5 - ✔✔25lb bomb, uses both the MK-4 and CXU-3
