PART V - ARMAMENT EQUIPMENT

                 91.  Bombs

                 (i)   A removable bomb rack can be fitted under each wing
                       and each rack will carry single bombs from 100 to 1,000
                       lb., bomb clusters up to 500 lb., a chemical tank or a
                       fragmentation bomb rack assembly.
                 (ii)  The demolition bomb SINGLE/ALL switch (125) on the
                       armament panel provides for releasing bombs (except
                       fragmentation bombs) or chemical tanks singly or
                       simultaneously when the bomb/rocket release button (75)
                       on the control column is pressed.  With the switch at
                       ALL, both bomb racks are released simultaneously; with
                       the switch at SINGLE the left bomb rack is tripped as
                       the release button is actuated, and the right rack releases
                       when the button is pressed a second time.  This switch
                       may also be used for jettisoning the wing drop tanks and
                       should be in the ALL position so that the tanks are
                       released together when the release button (75) is
                       pressed.
                 (iii) All bombs (except fragmentation bombs) are fused by
                       means of a switch (124) on the armament panel marked
                       TAIL ONLY and NOSE & TAIL.
                 (iv)  A two-position bomb release selector switch (126) on the
                       armament panel provides for either MANUAL
                       RELEASE or AUTO RELEASE.  At MANUAL
                       RELEASE the bombs are dropped when the release
                       pushbutton (75) is pressed.  At AUTO with the release
                       pushbutton held in, the bomb is released automatically
                       by the A-4 sight at the correct point.  During both bomb
                       release conditions, the correct bomb release point is
                       indicated by automatic extinction of the sight graticule
                       image circle.
                 (v)   The fragmentation bomb selector switch (114) is on the
                       armament panel.  Placing the switch at SINGLE TRAIN
                       results in release of the bombs in a train, from the left
                       rack and from the right, as long as the bomb release
                       button is pressed.  When placed at ALL TRAIN, the
                       bombs are released in a train, from both racks simul-
                       taneously.  The indicator (112) beside the fragmentation
                       bomb selector comes on with the selector at either
                       SINGLE TRAIN or ALL TRAIN and goes out when
                       the last bomb is released.  When fragmentation bombs
                       are to be released the demolition bomb selector switch
                       (126) must be at MANUAL RELEASE.

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