Made some great progress following the MACR link above.
The "Calais" Liberator(s) turned out to belong to 328th Service Group, 36 Bomb Detachment on Clandestine Ops delivering supplies to the French Resistance. Two a/c being shot down on successive nights near Doullens, crashing within 5km of each other.
QUESTION #1 - The aircraft were described as B-24DSA. Can anyone detail the electronics fit and any modifications for supply dropping to the resistance?
QUESTION #2.Can anyone detail the 482BG Pathfinder Liberator B-24HSH electronics fit?
Anyone able to help?