Making the Sea Duck

[loupgarou]

US-Airfix artworks, very different from the original UK ones, were quite truculent and, in my taste, dreadful.

[NARSES2]

Consolation prize: perhaps the near miss on the uboat was enough to do it in!

Probably close enough to cause substantial damage to the pressure hull, although it may actually be a direct hit on the water line. Most subs were sunk by the action of the pressure wave rather than a direct hit by either aircraft or ships.

The front gunner's Lewis still seems to be trailing smoke, so he obviously had a pop on the way past.

[Scotaidh]

Consolation prize: perhaps the near miss on the uboat was enough to do it in!

Probably close enough to cause substantial damage to the pressure hull, although it may actually be a direct hit on the water line. Most subs were sunk by the action of the pressure wave rather than a direct hit by either aircraft or ships.

The front gunner's Lewis still seems to be trailing smoke, so he obviously had a pop on the way past.

An explosion, underwater, causes a hole in the water - a hole filled with water vapour.  Water pressure then causes the hole to collapse, violently, which then 'rebounds', causing the hole to re-form (albeit a bit smaller due to lesser energy available), and so on until the available energy is exhausted. The duration of this cycle is measured in micro-seconds. 

When the explosion-hole is formed near a solid object such a a ship's hull, the hole will actually migrate to that object, where the collapsing and reforming of the hole causes a series of unspeakably violent blows to the object, for the duration of the collapse-reform cycle.  This usually causes a ship's hull to fail, and is why a near-miss is usually more effective than a direct hit - except in Battleships. 

[TheChronicOne]

US-Airfix artworks, very different from the original UK ones, were quite truculent and, in my taste, dreadful.

All of (or most of?) mine aren't even art work, rather a picture of the finished model. Quite boring indeed! As a stand alone, they look nice all stacked up, but can't hold a candle to the old art work when it comes to actually looking at the covers.

[Old Wombat]

Looks like a cover for a Commando (For Action and Adventure) or War Picture Library comic (used to buy them religiously as a youngster).

[NARSES2]

An explosion, underwater, causes a hole in the water - a hole filled with water vapour.  Water pressure then causes the hole to collapse, violently, which then 'rebounds', causing the hole to re-form (albeit a bit smaller due to lesser energy available), and so on until the available energy is exhausted. The duration of this cycle is measured in micro-seconds. 

When the explosion-hole is formed near a solid object such a a ship's hull, the hole will actually migrate to that object, where the collapsing and reforming of the hole causes a series of unspeakably violent blows to the object, for the duration of the collapse-reform cycle.  This usually causes a ship's hull to fail, and is why a near-miss is usually more effective than a direct hit - except in Battleships. 

Oh thanks for that  Far more complicated then I thought. Shame the "old man" isn't around otherwise I could have blinded him with the science of what was actually happening when they dropped all those depth charges back on the Atlantic Convoy runs 

I now understand why some depth charges were fired from the ship but it does make me wonder what effect the ones that were rolled over the stern had on the ship it'self ? Or was the delay such that the ship was out of the danger zone ?

[Old Wombat]

Destroyers & corvettes, especially, had to go into the docks to have their prop shafts replaced quite frequently ... or soldiered (sailored? ) on with uncomfortable shudders at speed & bilge pumps going all the time because of leaking shaft seals.

[NARSES2]

Ties in with some of Dad's stories 

I know he was quite happy when he was sent on a 3 month AAA gunnery course in South Africa. Wasn't quite so happy when he ended up putting that training to use against kamikazes in the BPF