[Lang]

Here is a photo of a Spitfire in a crate being unloaded at Cocos Island about the same period our mystery Spitfires were being unloaded in Burma.

We are not looking for a hole dug by pick and shovel, it must have taken some serious equipment to bury 20 ( or 140) of these.

Just the dirt pile would be huge. Quite apart from the dirt required to put back on top of the buried box they would have to remove about 100 cubic metres (the rough box volume). Let's say we overload a CMP tipper with 5 metres of dirt that is 20 loads per box to take it "somewhere" - 400 truck loads for 20 boxes or 2,800 truck loads for 140 boxes. If they just pushed the spoil up in a pile, Everest would only be the second highest mountain in the world and we would not need ground penetrating radar to find them.