Technical nitpick: Correct the engine uses steam to turn the propellor. A triple reciprocating engine uses the same steam three times - high / medium / low pressure pistons. more torque, cheaper to run, but lower overall power.
Just as a FYI for everyone it is possible to build a Quadruple Expansion steam engine. Ironically this may be one of the few scenarios ever written where they might turn up, as they only seem to have ever really been a thing with long haul British built Liners.

P&O's four "R" class liners on the Bombay run all used them. And were used as Armed Merchant Cruisers.
(Titanic's two outer shafts used them. With enough steam pressure left over to run a steam turbine on the centre shaft.)
 
Just as a FYI for everyone it is possible to build a Quadruple Expansion steam engine
4 cylinder triple expansion were also common ( high and medium as normal but the low pressure was split into 2 cylinders, one at each end of the crankshaft ) as it was a way of reducing vibration.
 
In 1912 Titanic did have quadruple expansion machinery. Her thee propellors were driven by two triple expansion reciprocating engine driving the outer shafts. Exhaust steam from both of these engines then powered the central shaft via a low pressure turbine. Hence four stages of expansion .
 

Fatboy Coxy

Monthly Donor
Just as a FYI for everyone it is possible to build a Quadruple Expansion steam engine. Ironically this may be one of the few scenarios ever written where they might turn up, as they only seem to have ever really been a thing with long haul British built Liners.

P&O's four "R" class liners on the Bombay run all used them. And were used as Armed Merchant Cruisers.
(Titanic's two outer shafts used them. With enough steam pressure left over to run a steam turbine on the centre shaft.)
Hi Edgeworthy, thanks for pointing that out. We might see HMS Ranchi or HMS Ranpura in this TL, but unfortunately both HMS Rawalpindi and HMS Rajputana have already been lost. While we're discussing the search for ever efficient power systems, have a look at Ranchi, who's power plant was slightly different.
 
MWI 41120411 A Very Wet Airfield

Fatboy Coxy

Monthly Donor
1941, Thursday 04 December;

Sergeant Okazaki walked back into his tent, his mind buzzing with the exciting news he’d just been given by his squadron leader. News had come in that the injury to his flight leader was a lot more serious than had first been thought, was in hospital, and he wouldn’t be joining them. Consequently, Okazaki was being given temporary command of the flight, for the foreseeable future.

The 11th Sentai, along with many others, had begun its redeployment from Manchuria in mid-November, the aircraft flying down in stages, along the Chinese coast, and onto Hainan Island, before jumping across to northern Indo-China, and down that coast, finally flying in this morning into Kukan, a small airfield, recently completed by Korean labourers on the island of Phu Quoc, one of two airfields, the other, Duong Dong, being about 3 miles south.

The journey had been quite arduous, and several aircraft and pilots had been involved in accidents along the way, including his flight leader, who had landed heavily on Hainan Island, and flipped his aircraft over. They had pressed on the next day, leaving the flight leader there, who had insisted that he had only suffered minor cuts and bruises, and would be able to catch them up as soon as his aircraft was made serviceable. Well, the examination by a doctor had revealed a broken collarbone, and several cracked ribs, ending his hopes of an early return.

Okazaki gathered a small note book and pencil, and left the tent in search of the new flight replacement, who would be joining him and his friend Sgt Nakazawa. He also had to go see the sergeant in charge of the ground crew assigned to the flight, and establish an understanding of how things would work here. As he walked through a row of tents, he couldn’t help thinking how primitive the whole place was, a sod airstrip, and a tent city arranged around the edges, set in several groupings of tents.

The noise of an aircraft coming into land had him turning his head to watch. It was one of the new type 1 fighters, a Hayabusa, which equipped the 59th Sentai, the other fighter group they shared the airfield with. Her landing gear was down, but could be retracted, something his Type 97 fighter with its fixed landing gear, was incapable of. He’d been told the bigger aircraft was 40 mph faster and had more than twice the range of his plane, while being just as manoeuvrable. Publicly he was proud of his aircraft, but privately he yearned for a Hayabusa.

It was raining again, hard, another shower, and would last for 10 minutes, maybe 30 minutes, and then the sun would be out, steaming out the moisture. Okazaki ran along the tent rows, his feet splashing in the surface water, across a small drainage ditch full of water, bridged by a couple of planks, and into the maintenance section. Despite the noise of the rain, he heard the aircraft’s engine scream in protest as it was pushed to full power, the pilot having misjudged his approach and was now desperately trying to clear the tree line, and go around again. It barely made it, but did, was safe and would be able to make a second attempt, something that a previous aircraft hadn’t been able to do, its wreckage still visible among the jungle tree line.

The last Hayabusa touched down, the 59th had arrived, and with her the redeployment was complete. The 11th and 59th Sentai at Kukan, and the 77th Sentai with the Type 97 and 64th Sentai, again with the new type 1 fighter, up the road at Duong Dong. All of them cramped in with primitive maintenance facilities, poised, ready to support any Japanese invasion of Malaya, Thailand or both.
 
Hi Edgeworthy, thanks for pointing that out. We might see HMS Ranchi or HMS Ranpura in this TL, but unfortunately both HMS Rawalpindi and HMS Rajputana have already been lost. While we're discussing the search for ever efficient power systems, have a look at Ranchi, who's power plant was slightly different.
This was in the time when P&O loved slightly strange power plants. The HMS/RMS Mooltan had quadruple expansion engines and turbo-electric transmission;

RMS Mooltan
 
1941, Thursday 04 December;

Sergeant Okazaki walked back into his tent, his mind buzzing with the exciting news he’d just been given by his squadron leader. News had come in that the injury to his flight leader was a lot more serious than had first been thought, was in hospital, and he wouldn’t be joining them. Consequently, Okazaki was being given temporary command of the flight, for the foreseeable future.

The 11th Sentai, along with many others, had begun its redeployment from Manchuria in mid-November, the aircraft flying down in stages, along the Chinese coast, and onto Hainan Island, before jumping across to northern Indo-China, and down that coast, finally flying in this morning into Kukan, a small airfield, recently completed by Korean labourers on the island of Phu Quoc, one of two airfields, the other, Duong Dong, being about 3 miles south.

The journey had been quite arduous, and several aircraft and pilots had been involved in accidents along the way, including his flight leader, who had landed heavily on Hainan Island, and flipped his aircraft over. They had pressed on the next day, leaving the flight leader there, who had insisted that he had only suffered minor cuts and bruises, and would be able to catch them up as soon as his aircraft was made serviceable. Well, the examination by a doctor had revealed a broken collarbone, and several cracked ribs, ending his hopes of an early return.

Okazaki gathered a small note book and pencil, and left the tent in search of the new flight replacement, who would be joining him and his friend Sgt Nakazawa. He also had to go see the sergeant in charge of the ground crew assigned to the flight, and establish an understanding of how things would work here. As he walked through a row of tents, he couldn’t help thinking how primitive the whole place was, a sod airstrip, and a tent city arranged around the edges, set in several groupings of tents.

The noise of an aircraft coming into land had him turning his head to watch. It was one of the new type 1 fighters, a Hayabusa, which equipped the 59th Sentai, the other fighter group they shared the airfield with. Her landing gear was down, but could be retracted, something his Type 97 fighter with its fixed landing gear, was incapable of. He’d been told the bigger aircraft was 40 mph faster and had more than twice the range of his plane, while being just as manoeuvrable. Publicly he was proud of his aircraft, but privately he yearned for a Hayabusa.

It was raining again, hard, another shower, and would last for 10 minutes, maybe 30 minutes, and then the sun would be out, steaming out the moisture. Okazaki ran along the tent rows, his feet splashing in the surface water, across a small drainage ditch full of water, bridged by a couple of planks, and into the maintenance section. Despite the noise of the rain, he heard the aircraft’s engine scream in protest as it was pushed to full power, the pilot having misjudged his approach and was now desperately trying to clear the tree line, and go around again. It barely made it, but did, was safe and would be able to make a second attempt, something that a previous aircraft hadn’t been able to do, its wreckage still visible among the jungle tree line.

The last Hayabusa touched down, the 59th had arrived, and with her the redeployment was complete. The 11th and 59th Sentai at Kukan, and the 77th Sentai with the Type 97 and 64th Sentai, again with the new type 1 fighter, up the road at Duong Dong. All of them cramped in with primitive maintenance facilities, poised, ready to support any Japanese invasion of Malaya, Thailand or both.
Sounds like there may be no revetments here either…
 

Fatboy Coxy

Monthly Donor
This was in the time when P&O loved slightly strange power plants. The HMS/RMS Mooltan had quadruple expansion engines and turbo-electric transmission;

RMS Mooltan
Hi El Pip, thank you for this, but it's clearly one of those rabbit holes CalBear warns of, and I'll swerve that one. Unfortunately I note, RMS Mooltan was the ship that brought home the 4-1 victorious English Cricket team, regaining the Ashes, overcoming the superstar of the day, Don Bradman and co. Their captain, who devised the controversial bodyline tactics, Douglas Jardine, later served as a Territorial Officer in the Royal Berkshire Regiment, going through Dunkirk, before being posted to India as a staff officer. Spookie enough, I have the 2 Bn Royal Berkshire Regt in Kelantan, oh ho, another rabbit hole emerging!
 
Hi El Pip, thank you for this, but it's clearly one of those rabbit holes CalBear warns of, and I'll swerve that one. Unfortunately I note, RMS Mooltan was the ship that brought home the 4-1 victorious English Cricket team, regaining the Ashes, overcoming the superstar of the day, Don Bradman and co. Their captain, who devised the controversial bodyline tactics, Douglas Jardine, later served as a Territorial Officer in the Royal Berkshire Regiment, going through Dunkirk, before being posted to India as a staff officer. Spookie enough, I have the 2 Bn Royal Berkshire Regt in Kelantan, oh ho, another rabbit hole emerging!
My father as a young man played a game of beach cricket against Jardine and the English team in Adelaide just before the Bodyline test was played at Adelaide Oval. He still had the cricket bat they used. However, the silly old bugger didn't get them to sign it at the time. Unfortunately he is no longer with us, now.
 
I had a teacher whose dad was at Adelaide Oval during that test. Apparently he had to be physically restrained from jumping the fence and trying to punch Jardine - the dad, not the teacher!
 

Fatboy Coxy

Monthly Donor
I wonder if all the Australian anger came after Bert Oldfield's fractured skull, carried off unconscious. Perversely, it came from a non bodyline ball, top edged, Oldfield later admitted it was his error. Then again Bill Woodfull took a ball to the chest, but managed to soldier on, 79 not out!
 
I wonder if all the Australian anger came after Bert Oldfield's fractured skull, carried off unconscious. Perversely, it came from a non bodyline ball, top edged, Oldfield later admitted it was his error. Then again Bill Woodfull took a ball to the chest, but managed to soldier on, 79 not out!
I am not angry at Jardine. He simple proved that the English don't play as sportsmen do but played to win. He demonstrated that the game could be played according to the rules. He was no gentleman. He was a thug.
 

Fatboy Coxy

Monthly Donor
Hi Vetinari, well England might have promoted the tactic of the bounce, but by god we were paid back by those magnificent West Indies bowlers of the 70's and 80s. We reaped what we sowed!

And of course the standout Englishman among Jardine's England team was the Nawab of Pataudi, who, despite scoring a century on his Test debut, was dropped by Jardine, because he refused to move to a leg-side fielding position, (the Bodyline tactic was to bowl to the leg side), Jardine commenting "I see his highness is a conscientious objector".
 
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