Two course and distance computors (prototype)
Librascope D-R. Computor
Track and ground speed computor (prototype)
Mechanical computor, for navigation vector triangle
Square-Search Compoutor
Star L.H.A. Computor. Defective
Distance time computor
Loop-bearing computor, R.A.F. Form 1288
Armitage computor for variation setting
Course and Distance computor, Mk.IIA
Simmonds-Goudime computor
Simmonds-Goudime computor
Two distance time computors
Computor Unit MkIII
1942