> “We had to redesign all the sections of the airplane three times,” Isaacs recalls, “and we had to lighten [the airframe] and get the weight down to accommodat

> “We had to redesign all the sections of the airplane three times,” Isaacs recalls, “and we had to lighten [the airframe] and get the weight down to accommodate the engines. Consequently, it made the airplane have a bunch of problems. That engine is the downfall of the C-133.” Immediately reminded me of the current problems and workarounds in the 737 Max 10. The changes and kludges were in part to compensate for its larger engine's effects on the 737's flight characteristics, warped by Boeing's need to not require crew retraining.