| Year | 1925 |
| Date | 09-Apr |
| Volume | 52 |
| Issue | 1,250 |
| Page | 395 |
| Category | Aeronautical |
| Part | |
| Title | Water Tests on Airship Models |
| Author | Capt. P.H.Sumner |
| Notes | Small airship buckling through loss of gas pressure, experimental apparatus for testing the envelopes of model airships, Parseval airship, envelope construction, lift diagram, rigging used on "Blimps", tragectory bands of rigging system |