B Alcohol...........................................................................8-2 Alternate pressure application......................................7-32 Alternating current (AC) introduction ...........................9-9 Definitions ..................................................................9-9 Cycle .....................................................................9-10 Effective..................................................................9-9 Frequency .............................................................9-10 Instantaneous ..........................................................9-9 Peak.........................................................................9-9 Period ....................................................................9-11 Phase relationships................................................9-11 Values of AC ..........................................................9-9 Wavelength ...........................................................9-11 Alternator drive............................................................9-42 Alternator voltage regulators .......................................9-40 Altimeter and static system inspections.......................2-62 Aluminum alloys..........................................................4-30 Aluminum soldering ....................................................5-21 Aluminum welding ......................................................5-18 Amorphous thermoplastics ............................................7-8 Amphibious aircraft .....................................................1-36 Angle adapters .............................................................4-16 Angle of attack...............................................................2-6 Angle of incidence .........................................................2-5 Annual and 100-hour inspections ...................... 2-60, 2-63 Anti-chafe tape...............................................................3-5 Antiservo tabs ..............................................................1-34 Antitorque pedals .........................................................2-30 Antitorque system ........................................................1-45 Application of cement..................................................7-56 Applying the finish ......................................................8-11 Applying the glue/adhesive..........................................6-11 Approval of repair........................................................4-94 Aramid (kevlar®) fiber-reinforced plastics .................7-52 Arc welding procedures ...............................................5-25 Argon .............................................................................5-7 Assessment of damage.................................................4-92 Atmosphere ....................................................................2-2 Atmospheric pressure.....................................................2-2 Audible sonic testing (coin tapping) ............................7-16 Autoclave .....................................................................7-23 Autogyro ......................................................................2-17 Automated tap test .......................................................7-16 Automatic center punch .................................................4-6 Autorotation .................................................................2-27 Auxiliary control surfaces............................................1-28 Auxiliary lift devices....................................................2-12 Axes of an aircraft..........................................................2-9 Balance panels .............................................................1-33 Balsa wood...................................................................7-13 Band saw......................................................................4-11 Bar folding machine.....................................................4-21 Base measurement .......................................................4-59 Bead weld.....................................................................5-28 Bearing...........................................................................4-3 Bell stabilizer bar system .............................................2-30 Belt drive clutch...........................................................2-36 Bend allowance (BA)...................................................4-59 Bending .........................................................................,1-7 Bending a U-channel....................................................4-61 Bend radius ..................................................................4-59 Bend tangent line (BL).................................................4-59 Benzene..........................................................................8-2 Bernoulli’s Principle ......................................................2-4 Bias ................................................................................3-3 Bidirectional (fabric)......................................................7-3 Biplane assembly and rigging......................................2-55 Bismaleimides (BMI).....................................................7-8 Blanket method ............................................................3-12 Bleeder ply ...................................................................7-21 Bleedout technique.......................................................7-29 Bleriot, Louis .................................................................1-3 Blind bolts.......................................................... 4-53, 7-48 Blind fasteners .............................................................7-47 Nnonstructural ..........................................................4-56 Blind rivets...................................................................4-47 Blushing .......................................................................8-13 Bolt and bushing holes.................................................6-19 Bolted repairs ...............................................................7-44 Bonded flush patch repairs...........................................7-37 Boron..............................................................................7-6 Boundary layer...............................................................2-7 Box and pan brake (finger brake) ................................4-22 Box beam ........................................................... 1-12, 1-13 Brazing and soldering ..................................................5-19 Breather material..........................................................7-21 Brinelling .....................................................................4-90 Brushing.........................................................................8-5 Bucking bar..................................................................4-36 Bumping.......................................................................4-58 Burnishing....................................................................4-90 Burr ..............................................................................4-90 Burring tool..................................................................4-14 Butt joints.....................................................................5-30 Buttock line..................................................................1-39  I-2