R.A.F. TYPE R.E.5. An "R.E. Portable" Tent Pole is shown used as Derrick for dismounting Engine
F. W. Lanchester
1916
<a class="external free" href="https://en.wikisource.org/wiki/Page:Aircraft_in_Warfare_(1916).djvu/117">https://en.wikisource.org/wiki/Page:Aircraft_in_Warfare_(1916).djvu/117</a>