My largest fire as a firefighter, company officer or chief officer was on January 23rd, 1985. I had the City Wide Command Chief (CWCC) duties for that night tour. During my time at 1700 hours a staff chief, usually a Deputy Assistant Chief, had the CWCC duties. The CWCC had the responsibilities to respond to 3rd alarm or higher fires/emergencies, 3 or more 10-45 code 1 incidents, any incident which could bring discredit to the department or as directed by the Fire Commissioner or Chief of Department. At that time we were quartered in the Command Center which was in the basement of Police Headquarters. Quarters had a kitchen, office and 3 or 4 small bedrooms. The center was manned by 4 light duty firefighters working 24 on and 72 off tours. We had just finished the evening meal around 1900 hours when a 2nd alarm came in for a commercial building fire on West 42rd street in Manhattan. It seemed like one minute later a 3rd was transmitted, we responded, I was car 12B. While responding a 4th was transmitted. On my arrival I found the fire building to be a 9 or 10 story mill constructed commercial factory building, fire was showing, venting, from every window on every floor of the building threatening to extend to all exposures. Exposure 4 was Rescue Company 1's quarters. I transmitted a 5th alarm. The fire building ran street (43rd street) to street (42nd street). I sectored the fire off having the 3rd Division Chief, DC Hovsepian command the 42nd street side of the fire, to special call units as he saw fit. I was told that all of our members were out of the building. One of the beauties of being a FDNY chief is I could say to the boro dispatcher "special call an additional 10 engine companies to the fire," and 20 minutes later or so 10 additional engines would have arrived. We couldn't set up outside streams (tower ladders, engine stangs) in front of the fire building on the 43rd street side as we knew that the fire building would eventually collapse. Directly across the street was a 9 or 10 story commercial building. We had 10 or so engine companies stretch into this building with 2 1/2" hand lines and attack the fire from the buildings windows. Chief of Department John O'Rourke (RIP) arrived and assumed command. We did position one tower ladder, L14, far back on 43rd street in front to the fire building eventually. The main concern was exposure 4A, a 6 story residential building. The fire was threatening and extending to several floors in this building. I assigned DC Matty Murtaugh, D5 (RIP) to take command of the firefighting in exposure 4A. In all 10 engines operated in exposure 4A extinguishing fire in a dozen or more apartments throughout the fire. The next day the tenants of this building hung a large sheet out of several windows writing on it "God Bless the FDNY," was appreciated by the guys. L14 operated about 20 minutes, was doing nothing really when we had them lower the bucket, bring the men out and leave the truck where it was (was a spare). Twenty minutes or so later the building collapsed, L14 was untouched. 14 was raised again and the lines from the building across the street continued to hit the now rubble for several more hours. Rescue's quarters were destroyed by the collapse, but that was the only exposure heavily damaged by the fire. Fire was 10 alarms. I don't know how many engines and trucks operated but 40 to 50 engines and 20 to 25 trucks may be a good guess. As always, the guys did a great job.