HMHS Britannic

[Skynet12]

(Sorry, but Ive always wondered 'bout this) IN 1917, RMS hospital ship, britannic (Titanics' biug sis) sunk after hitting a mine. All the watertight doors were closed, and yet, when a recent expedition went down, they found that the most important one to be closed was actually open. Why? Titanics were closed, but the water spilt due to 5 being flooded~britannic only had 2 flooded. Why'd she sink?
If any1 can find a good link on this, id be very gratful.
Thanks, Skynet12
http://www.titanicnorden.com/skepp/pics/brit2.jpg

http://www.ecophotoexplorers.com/images/wrecks/b_wreck2_sm.jpg
http://www.encyclopedia-titanica.org/images/res_1079298223_Watertight%20doors.jpg

[Demonskates]

they did a study on the iron used to build the titantic,what they found was that the iron was faulty.when they were making the iron plating and rivets for titantic,technology wasnt all that great,it was hit or miss with ironworks at that time,if too much carbon was added to the iron during smelting,you ran the risk of the iron being weaker,espescialy in the cold waters of the atlantic.The iron became brittle,so when it hit the iceberg,the rivets gave under the strain as well as the iron plating itself.They took samples of the iron and tested its strength,and found that it took relatively little to break the metal in the same relative temperatures in the atlantic.they also looked at the composition of the rivets and plating and found indeed,that there were abnormally high amounts of carbon in the iron.

If this ship was titantics sister ship,i would imagine they were built around the same time,mabey at the same ship yard,and that the iron used to build Britannic's plates and rivets were perhaps made at the same ironworks as titantics,using the same flawed carbon ratios.
if the britannic was in the cold of the atlantic say during fall or winter or in general(the atlantic is damn cold all the time)
when the mine went off the brittle iron wouldnt stand a chance.
so if you can tell me ,where was she made?(same place as titantic?)
when was she made? (around the time of titantic?)
Was the iron made at the same Iron works?(same as titantic's?)
what time of year was it and was she in the atlantic when she struck the mine?

I also see some major differences in pictures of the titanic where she lays on the ocean floor,and how britannic rests on the ocean floor.

When titantic sunk,the two parts of the ship when they rested on bottom were roughly a mile or so apart.
the ship completely broke apart either on the surface or shortly after going under.

That pic you posted of britannic is quite the opposite both pieces are very close togehter,within a few yards it looks,which would indicate that the bow was mostly intact on the way down,and broke off when it struck bottom,(if it had broke off on the surface the two pieces could never be as close as the are in the pic)i feel that the mine must have forced the bow in an upward direction but didnt completely break off,with that hatch being open,i think she took on water very quickly and sunk.(look at the very bottom of the bow,see all the wrinkled metal and damage,it hit the mine head on)

with titantic,she slowly slowly split apart on the surface,due to water and the weight of it.
with the britannic,the whole bow was thrusted up in an instant,breaking the plating on the bottom and either side of the bow,but still held together by the deck.

Have you ever seen footage of a torpedo hitting the midsection of a ship?
its not the hole that sinks it but the shockwave actually lifts the entire midsection while the bow and stern try to remain on the water,it splits the ship apart.

same theory i have for britannic,except it was a mine,and it blew the bow upwards.
also as you said the most important hatch was open,with titanic there was time to try and close the doors,with britannic every thing happend in an instant,i think she went down in a matter of moments.
Heres an illustration,Take a zippo lighter and hold it so the hinge is facing up,now open it slightly but not all the way( the hinge representing the deck holding the bow on,)that is esentially what the britannic looked like right after the mine hit,thats why i feel she went down quick.

[Skynet12]

'so if you can tell me ,where was she made?(same place as titantic?)
when was she made? (around the time of titantic?)
Was the iron made at the same Iron works?(same as titantic's?)
what time of year was it and was she in the atlantic when she struck the mine?'

Southhampton, same place.

1 yr after titanic. She was modernised so the sama scenario as titanic could not happen. The e-deck was ironised.

Im not sure. Probably, because it wAs the wsl.

It was during the world war~I tihnk it was the beginnning fo july 1917.

[Demonskates]

id be interested to see the same test done on the metal as far as strength and composition on the iron used to build Britannic,the re enforeced deck also explains
why she is still partly togethe for most of the way down.

[Skynet12]

She sunk basically same as titanic~weird how she didn't snap. She was hit in the same place, and went down at the same rate. Probs those e-deck alterations helping i guess!