Aerial photos and historic maps

RAF 617 (Dambusters) Squadron went on to do pinpoint drops from high altitude of Tall Boy and Grand Slam ground-penetrating earthquake bombs, which were more effective at collapsing bridge piers.

Sure, but that wasn't the norm for allied bombing and 'pinpoint' wasn't and still isn't. As a model railway parallel, operating precise prototype scale wheel and track standards in N scale is done, but not by Dapol or Graham Farish.

=8^)

Greg.P.

This sort of thing is exactly what tinyurl was made for.

Try

The only two narrow gauge railways in Seaford I can find reference to are a 3' 6" steam / freight only line which was less than 1/4 mile long owned by a George Young which operated for a couple of years at the end of the 1890's plus a 24" line at Seaford Head used in WWII by the Canadian Army or Air Force as a target practice line. Ran from South Hill Barn about 1 mile in length. Some "cuttings" remain. Try "Barrack to Bunkers" by Peter Longstaff-Tyrrell Sutton Publishing 2002