Jonathan_S wrote:
The aircraft example from WWII SNIP... a Golden BB.
(That coolant vulnerability is part of the reason why US destructive testing showed that single engine aircraft with air-cooled radials were several times harder to kill than ones with liquid cooled V-12
The MUCH better example would be Pitch propeller mechanism. A bullet hits that, the aircraft is NOT coming home regardless of engine type. Also, most aircraft in WWII were lost due to mechanical failure, NOT enemy action. Less complex more reliable = get home.
Coolant "BB" problems is also dependent on radiator type and placement. For instance OIL coolers get hit --> Aircraft are NOT coming home in majority of cases. ALL aircraft have oil coolers. True on radials or inline. On inline water cooled engines there is just a MUCH MUCH larger AREA to hit. Though even that is not true. P47's oilcooler was armored, other radial oil coolers(corsair) not so much.
One reason P51 is much faster than its competitors(roughly 7-->10 mph depending on how much sustained HP is being discussed) is due to its VERY compact radiator design. There is a reason no one ever publishes a picture of a spitfire or 109 from the BOTTOM of the aircraft. They are ugly with a capital GHASTLY connotation with GIANT bullet and drag inducing air breathing radiators under BOTH the wings(later models) Early models with lower HP only had 1 under 1 side. So, as war went on Me109's and Spitfires became Twice as vulnerable, prone to being hit in the radiators and crashing. No one bothers to mention this basic fact for why Me109 loss ratios skyrocketed later in the war even as their pilots were at peak experience as very few like discussing aircraft LOSS per sortie ratio or cause of loss. They by and large just chalk it up to inferior aircraft(they weren't until late 44 when USA introduced superior fuel) or inferior pilots(late war is true certainly, but even then not exactly true)
Aircraft like P47 had a loss ratio 6X lower than that of P51 for instance, was produced in larger numbers, fought in ALL theatres, and for far longer, was tasked with ground pounding late in the war, yet still had lower loss ratio. P47 ALSO had a loss ratio 2X lower than that of the P38 with 2, yes 2!!! engines! Corsair, loss ratios are higher but it was flying nearly exclusively over water and it is less likely to be lost than P51. Spitfire was even worse loss ratio(we only have USA sortie ratio in Med theatre when USA flew Spits, not UK numbers-->maybe they exist? But I have never seen them). We do not know loss ratio of Me109 as often they got to land, be repaired and flown again. Just as the Hurricane/Spitfires were able to do so in Battle of Britain.
Yet one more reason no warship should EVER have its structure made out of Aluminum. Fire is most common cause of ship severe damage even in wartime and aluminum loses structural integrity at low temps. US carrier Bohemien Richie a couple years ago was lost due to arson because of this garbage design since its main structure was made from aluminum instead of STEEL! Design matters, not just overall grade school Block drawingsgg
PS: WWII discussion never bother to mention Loss rates between Lancaster and Handley Paige, verses their radial USA/UK counterparts. ALL air cooled radial bomber version had lower loss rates yet Lancaster/Handley Paige Halifax used inline merlin engines and had near identical loss rates.