Naval History Forums

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Do you think that all this stuff can be acomodated on a battleship size deck?

I know the ship was still going ahead but the flow past the rudder may have been reversed.

The flow was not reversed because the centre screw was stopped, this screw was turbine powered with no reverse turbine built into it.

Maybe the increased wear is acceptable

Yes, I undestand that for the long range machine gun fire the increased wear was accepted. Anyway, a machine gun barrel doesn´t last too much.

Bgile: I found a ballistic table for 30-06 at this site http://www.snipercentral.com/3006.htm. It doesn´t give bullet velocities, but it gives KE at ranges down to 1000 yards. At that distance KE is 530 ft-lb. I made a calculation and that energy for a 168 gr bullet corresponds to a velocity of 1190...

I remember reading that another problem with boat tailed ammo is that the gases pushes between the boat tail and the bore, eroding it more quickly than flat based ammo.

I think that a 30-06 or 308 is already subsonic at that range but let me check. I also disagree that the boat tail is intended to easier loading: for that a less pronounced tail will do.

Yes they do at long range. The boat tailed bullets were originally used in machine guns for this purpose.

I believe the modern 5"/54 cal US naval gun has a boat tailed shell, as do hand loaded sniper rounds. Both are supersonic. Rifle bullets are boat tailed to reduce drag in the subsonic regime. The low maximum elevation of the rifle (compared to a gun) makes the final part of the trajectorie sub...

more aerodynamic windscreen to decrease nose drag, boat tail base to decreased base drag I want to add something to this. The "nose drag" is produced by the supersonic shock wave. There are two types of waves: oblique and transverse. The transverse shock wave forms a little ahead of blunt...

I am surmising as a layman, as I am not a professional artilleryman nor a physics graduate! Neither I am!!! I will explain it shortly for you Robert: Newton´s first law: Acceleration = Force / Mass The mass is the weight of the shell, which is the same as an ordinary charges. The force is the press...

I notice that some of the members of the forum are former professional sailors, but most of us (including me of course, a sailboat amateur) are just interested in reading and learning about ships. Did you ever in your lifes think about becoming a professional sailor? If so, why did you put it down? ...

Would I be right in thinking that a supercharge could affect the velocity of a shell, particulary at shorter ranges, before atmospheric/wind resistance slows the shell.

Robert, if the supercharge wouldn´t increase velocity, how do you think it increases range?

how do you include a ship that is both bombed and torpedoed before it sinks?

You give 0.5 ship sunk to each, like two pilots downing the same plane.

The F4U Corsair must have had some of the same pilot visibility problems. I remember that they didn't initially work very well on carriers, even though they were designed originally with that in mind. I hadn't thought of this before, but it bears some resemblance to the FW190 D9. Odd, since the Cor...

In WWII Germany sank some 4800 enemy ships by joint effort of all her forces. U-Boats (losses 620) sank about 2800+ enemy transports and some 300+ warships. Luftwaffe sank some 800 enemy transports and 400 warships of which the Condor alone sank about 250 enemy ships with few losses of their own. G...