File titled 'Rigid mooring gear' consisting of notes, reports and correspondence on Vickers patent landing and mooring gear and mooring experiments, housed in original file. Includes:

- Postcard depicting colour image of R.23

- Notes on trials carried out with the Vickers patent landing and mooring gear, held in July 1919

- Original pencil drawing and resulting printed depiction of lift and trim of R.24

- Three photographs of R.24, moored

- Schedule of tests and trials to be carried out on R.24 and R.34

- Scale drawing of the masthead of the Vickers patent mooring gear for rigid airships

- Barnes Wallis’ calculations for the strength of the rigid mooring mast