27 Variable bleed-valve (VBV)fuel-actuated 43 7th-slage primary and 11th-stage 5 Mid-span shroud actuators and push-pull rods (both sides) 75 Hub heating air scoop 6 38 bolts attach fan to booster spool (retains secondary compressor bleed air to high- 28 VBV unison ring and bellcrank...