.a. Flashcards
Elements of Bombing Theory
Aerodynamic Properties
Drag - opposes inertia
Lift - opposes gravity
Physical Properties
Inertia
Gravity
IP
Timing Starts
Switch from Nav steering to Bomb steering
TTG in seconds
TTG = TTI – TOF
PP to BRP
Time Over Target (TOT) in Seconds
TOT = TTG + TOF
Actual Range (AR)
Ballistic distance to target
AR = Whole Range – L (bomb trail)
Bomb Trail
Aircraft separation from weapon at impact
Virtual Impact Pt
Aircraft position at Target Impact
Whole Range Math
Whole Range (WR distance) = TOF x (B-2A) GS x 1.6878 WR = BRP to VIP
.Crosstrail
The term for the lateral displacement is called cross trail.
Wind effects bomb flight
Must drop upwind
Desired Point of Impact (DPI) Desired Mean Point of Impact (DMPI) Initial Point (IP)
, the IP is where the B-2 navigation switches from the INS to the SMP
What impacts delivery
NAV System
Radar Aiming
CDI Deflection
Aircrew
MK-82
MK-83
MK-84
500lb
1000lb
2000lb
Takes 100% of buffer from IP to TGT
Full Scale Deflection is 3040’
Greater than 3000 will not release
Fuze Explosive Train
primer sets off main explosive
provides safe storage
primer…optional delay..detonator..booster.. and main charge
Fuze Detonator out of Line
Fuze Safety Block arrangement
Fuze Electrical Safing
One element is out of line with other element
block insterted between the striker and the explosive train
Electrical power is solated
Mission Independent Files
Ballistics
Zonal Winds
C Constants
Wpns Charact
Msn Dependent
Weapons Inventory
Target Sequence
Target Data
Wpns doors Synchronized by Power Drive Controller
Door Operating Limits
Single weapon from RLA doors open - 65°
Rack weapons require both doors open - 90°
Operating Doors Affects Pitch and Airspeed
Release is inhibited if doors are opened to less than the required position
Fast acting - 3.5 sec / 65 degrees - 5 sec / 90 degrees
Can’t rotate from station 8 to station 1 due to a mechanical stop because the umbilical’s have reached their limit.
(A) BRA can hold 20x 500lb class
(B) and 9 each for larger
70 seconds for WIU to integrate
2 Racks, Fore and Aft, in Each Weapons Bay
Can Be Loaded With a Mix of Weapons
Cannot mix guided with unguided
. What type of malfunction will trigger an MMS DEGRD Advisory?
MMS System Malf
What switches are located on the consent panels?
CONV REL ENBL, UNLK ENBL, and PA ENBL