Chicago Truck 18 shown here with their 1970 Ward LaFrance/Grove 100' rear mount aerial. Bill Friedrich photo Truck 12 also had one of the 100-foot Grove aerials with a Ward LaFrance Ambassador cab and chassis. As shown here, the booster reel has been removed. Larry Shapiro photo Chicago Truck 7 at the fire academy when it was ready to go in service. The booster reel is visible above the ground ladders. Jack Connors photo Truck 34 during a fire prevention week parade on State Street. Jack Connors photo Truck 21's apparatus (E-185) was later assigned to Truck 39. Jack Connors photo Truck 21’s unit was later reassigned to Truck 39, and Truck 7’s unit was reassigned to Truck 61. Truck Company 61 was assigned the unit that was previously Truck 7. Jack Connors photo This unit (Shop #E-185) was given to Truck 39 after it saw service as Truck 21. The booster reel as seen in the image of Truck 21 was removed prior to the re-assignment to Truck 39. Jack Connors photo  High Density Polyethylene Pipe,Hot Fusion Ppr Plastic Pipe,Marine Ppr Plastic Pipe For Accommodation,Marine Ppr Plastic Pipe For Water Supply Jingjiang Haihong Plastic & Rubeer Science -Technology Co.,Ltd , https://www.marineplasticpipe.com
Part 2 in the series on CFD Ward LaFrance apparatus in Chicago discusses the Grove aerials. Bill Friedrich submitted the following information:
There were a total of (5) WLF P80/Grove 100-foot rear-mount aerials ordered. Companies that received these were Truck 12 (E-183), Truck 34 (E-184), Truck 21 (E-185), Truck 18 (E-186), and Truck 7 (E-187). These were delivered with booster reels that were removed from Trucks 12 & 18.