I've been reading the 1991 ST:TNG technical manual along with reviewing the 1996 Enterprise D boxed set blueprints and I've found mistakes. Let me know what you think. Also, I've only gotten in a dozen pages so far, so I'll likely find many more mistakes and I'm halfway through reviewing the blueprints. So... The manual says there are three structural Integrity Field generators or SIF on deck 11 and two on deck 32. If my examination of the blueprints is accurate, there are two on deck 11 and one on deck 32. According to the manual, you need at least two SIF running at all times to protect the hull from bending, sagging, stretching and separating. Manual says there four Inertial Damping system generators or IDF on deck 11 and two on deck 33. The IDF prevents the ship and crew from getting crushed in its massive acceleration/decelerations or sharp turns. They can get by on running just one if there’s no combat, no evasive manuevers, no high warp speeds. Similar to a vacation cruise speed. Again, if my examination of the blueprints is accurate, there are two IDF on deck 11 and only one on deck 33.