Improved FMU-68/B Fuze
Abstract
An improved FMU-68/B mechanical fuze, designated as FMU-68A/B modified fuze, was designed and tested during a twelve-month period. The design objective was to provide additional safety features to the fuze which eliminate hazards encountered during upload and download of fuzed bombs. The fuze fits into the well of an AN-M23A1 igniter which is compatible with BLU-27B/B and BLU- 32A/B firebombs. The fuze has a built-in timer with a predetermined arming delay of 0.30 to 0.50 second which provides safe separation from the aircraft. The uploaded FMU-68A/B modified fuze can be restored to preflight condition by replacement of the safety cap and installation of a new safety wire if the arming wire (lanyard) has not been extracted from the fuze during the flight. Environmental tests were performed and test results formulated. One hundred twnety-five FMU-68A/B modified fuzes were shipped to Eglin Air Force Base for evaluation. It was concluded from the program effort that the FMU-68A/B modified fuze represents a significant increase in safety over the FMU-68/B fuze and that the improved fuze functions well within specification.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1972
- Accession Number
- AD0905236
Entities
People
- Richard C. Carter