20th century

On oceanlinersblog a thread divided in three posts : https://oceanlinersblog.wordpress.com/2017/10/16/the-ships-that-never-sailed-part-1/ https://oceanlinersblog.wordpress.com/2017/10/22/the-ships-that-never-sailed-part-2/...

View: https://www.youtube.com/watch?v=Eavbt2GLRLg https://en.wikipedia.org/wiki/McKinley_Climatic_Laboratory

I wish to ask, if anybody knows what were the building capacity of the major shipyards of Japan in the 1900-1950 period, eg how long were the drydock facilities and building slips of these shipyards? Ishikawajima Shipyard Uraga Dockyards Kawasaki Dockyards Kure Naval Arsenal Maizurue Naval...

View: https://www.youtube.com/watch?v=qhN-o2ame-4

Amazon - https://www.amazon.com/Narco-Submarines-Covert-Shores-Recognition/dp/B086G11WMM My third book, this time attempting to make sense of the many and varied 'narco submarines' used by drug smugglers. Mostly between Colombia and Mexico, but also in the Atlantic. As well as piecing together...

How many countries converted turreted tanks to Armoured Personnel Carriers? We know about the Canadian "Kangaroos" made from de-frocked M7 Priests and Ram tanks during the summer of 1944. Many Rams were also converted to "Wombat" ammo carriers. Post WW2, Sweden converted a Czech 38T light tanks...

If you follow this thread you will see that not only have they confirmed the existence of the first planet to be discovered in the planetary system, but there is also an indication of a third planet orbiting our nearest star Proxima Centauri. https://arxiv.org/abs/2005.12114

https://cloud.mail.ru/public/9dEX/djuwzbp4V For some time during last year and earlier this year I was visiting Russian State Library, and had an opportunity to make photos of pages of several military-related magazines from 1950s-2010s stored there, such as Interavia's IDR predecessor - five...

Meant to post this a few days ago, but didn't get the chance. From the Times December 24th, 1919:

I am too lazy to start a new thread but here are some phonecaptures from youtub of the Royal Navy in the 1997 Bond Film "Tomorrow Never Dies". First up is HMS Chester. Using her Harpoon launcher to fire a Cruise Missile at some bad guys Next we have HMS Devonshire, which gets sunk by the bad...

San Diego Air and Space Museum archives on Flickr. https://www.flickr.com/photos/sdasmarchives/albums/72157707315437765

I love very much the delightful novel "The two Georges" in which American revolution (and French revolution) never happened,and in a 1995 in many respects very similiar to 1935, British Empire reigns over great part of the world. My question is which can be the more plausible alternate timeline...

Hello all, I'm searching infos regarding real (albeit conceptual only) battleship projects distinguishing themselves for extraordinary caliber of main guns and/or number of main guns and displacement. I'm aware of the following, some yet briefly discussed in other topics: -Tillman maximum...

Given the distinct trend that real world events have taken lately, I thought it was long since time for a dedicated cyberpunk thread. For both real world examples as well as the fictional (e.g. universes such as The Sprawl [Neuromancer], Shadowrun, Cyberpunk 2020, etc.). I'll start off things...

https://arstechnica.com/science/2018/06/russias-proton-rocket-which-predates-apollo-will-finally-stop-flying/

ARCA Space Corporation is a New Mexico-based aerospace company It was founded in 1999 as a non-governmental organization in Romania by Dumitru Popescu That want to build a SSTO that launch 100 kg (220lbs) of payload to low earth orbit. it feature a linear Aerospike engine called "Executor" is...

New book available which may be of tangential interest to SPF members. Automotive history is filled with concepts which never left the drawing board, with early streamlined projects being among the more fascinating. This book presents ten of the most striking and unusual aerodynamic automobile...

Hi, here is some old flying barrel airplanes. http://allenfrostlibrary.blogspot.com.eg/2011/04/flying-barrel.html

Following a heavy reorganization of all Japanese aircraft topics, here is the breakdown of all Yokosuka-related threads this far: Yokosho (Yokosuka) Navy Type 10 Reconnaissance Seaplane Kusho (Yokosuka) Type 96 Carrier Attack (B4Y1) Yokosuka 9-Shi Medium-Sized Flying Boat (H5Y) Yokosuka 12-Shi...