Naval History Forums

I couldnt find the origin until now.

Just looking at the vertical component of the velocity and the mass of the SD 1400, wrong velocity of fall is independent from mass. But ther is a limit of velocity somewhere dependent on the air resistance of the falling bomb. Where does the knowledge comes from, that a projectile moving supersoni...

Bismarck, in theory, had a functioning radar ranging system capable of generating very accurate ranges and range rates and yet she never landed a single round with the potential to enter PoW's citadel. and thus the range had to be within a few hundreds yds of the range indicated on PoW's track char...

oh sorry I made a write error :oops: 83-85 must be 73-75 degrees case angle = angle of fall from the attached photos you cannot derive the vertical speed of the bomb and also there is no timeframe included, and FX has a starting horizontal flight speed of ~ 83m/s wich should be roughly the same at t...

Does anyone have any documenation on German doctrine in this regard? Was flooding the magazine veiwed as a fairly standard practice when an adjacent turret had suffered a severe hit? Its a standard routine to flood magazines i hope my memory is correct there is a "Schiffsicherungsvorschrift&qu...

the hole looks like base first pentration but possibly the shell passed not through the hole

navigation system is not relevant for case angle FX was a horizontal pentrator whilst HS 293 was a vertical penetrator some calcualation release speed of aircraft was 300 km/h so FX got a horizontal speed of ~83 m/s in case of Roma time until impact was ~40 Sek at around 40 seconds after release FX ...

Performance claims include a glide range of 11 km for a 3,300 ft AGL release,

this belongs to Glidebomb HS 293

but 10 inch = 25 cm I suspect this spacing is not enough to complete decapping for optimal performance some effect of decapping can be found if you compare ballistic performance of 80/240 plate in contact ,320 single plate and 80/240 spaced (plates in lbs) http://www.kbismarck.org/forum/download/fil...

There were british tests in 1937 on a spaced target showing a somewhat lesser ballistic limit velocity for the spaced Vittorio Veneto-arrangment then a single plate against 15" shell spacing of the target was a 6-7 inch "eggbox" http://www.kbismarck.org/photos/VVvertical.jpg (remember...

torpedoed by an obsolescent Swordfish torpedo bomber the swordfish was not the weapon its only the carrier like Submarine, torpedoboat, Destroyer and Aircraft. Only the carried torpedo caused damage to the ship independent from its supporting system, But In general a faster and/or a more maneuverab...

As for the events during Bismarck's last battle, I remember reading the 14" shell that hit Bruno to have glanced off, but the turret lost hydraulic pressure because of the impact shock, and the guns depressed and became un-serviceable. lookin at a scheme drawing of a 38 cm tutrret it seems to ...

Is the film available at youtube?
nominally the achieved ROF is far behind maximum ROF, even if we consider shoot in.
is it custom at what salvo Schneider comands "gut schnell"

It was also the mechanical problems of the quad turrets, which left the ship with only 5 operational guns 15 minutes into the battle. Replace Hood with KGV and I think almost all would agree the outcome would have been far different. Operational report No 5 Chase of Bism states for KGV "...her...

the german protection approach is differentiating between vital and non essential parts for impacts of main battleship caliber shells. in a technical sense ther is almost no IZ for parts above the panzerdeck but probably an IZ of 0-30 km for parts below the panzerdeck. The vital parts like machinery...