![](https://coimages.sciencemuseumgroup.org.uk/375/636/large_thumbnail_1928_0920__0001_.jpg)
Interference hologram of Rolls Royce turbine blades RB211 rotor fan
- manufacturer:
- Eve Ritscher Associates
interferogram of RB211 rotor fan, interference hologram of Rolls Royce turbine blades, one metre square, c. 1983
Hologram, one metre square showing an exact ½ scale model of a turbine rotor. Produced by Rolls Royce, they use similar interference holograms to test for faults in their turbine blades and rotors during manufacture.