Churchill Great Eastern Ramp. From top left: three-quarters view, deployed in anti-tank ditch, over wall and against sea wall. Key: Rear ramp, Projected ramp, Front sprag, Distance indicator, Fixed ramp. (en)
As Professor Lindemann told you in the strictest confidence, experiments are in hand on somewhat similar lines and as soon as results are available, so that we can tell whether your ideas can be applied, you will be informed. A great deal depends upon the type of soil and the conditions in which the machine will have to be used, but, in certain circumstances, which may well occur, the method you propose might be applicable. (en)
The first rough experiments will tell us whether this line of development is promising, but until they have been carried out, it is difficult for us to go any further. I am hoping that it will not be a very long time before we are able to communicate with you again. (en)