INFORMATION:
A good view showing the different size of windows.
History :
Feb. 1944 an advance party from IXth USAF move in to begin trials on a wire mesh covering over original runway surface in preparation for the invasion of Europe. P-38's used intensively to test new surface and frequent repairs were needed.

RAF Christchurch had terrible trouble with P38's using PSP planking on a rough surface, bombs would rattle loose on takeoff and fall around the perimeter.