#169 1938 · Minsheng Shipping Company (Lu Zuofu) · Wartime industrial logisticssegment-the-bottleneck
With Japanese forces roughly 40 days from a single river chokepoint and a year's worth of shipping still stuck on the docks, Lu Zuofu stopped sending ships end to end and split the route into three so each hull only ever worked the stretch it was built for.
the problem
one bottleneck route has far more to move through it than its capacity allows in the time available
background
In October 1938, with Wuhan already fallen to Japanese forces and an invasion of the river port of Yichang expected within roughly 40 days, China's war effort faced a single chokepoint: virtually all the industrial machinery, munitions equipment and refugees fleeing the war zone had to pass through Yichang and up the Yangtze's Three Gorges to reach the wartime capital, Chongqing, and there was no other route out. Minsheng Shipping's own steamers, and every other vessel available, fell far short of the capacity needed — Chinese planners themselves estimated that clearing everything piled up at Yichang at normal shipping capacity would take about a year, not 40 days.
The straightforward plan — load whichever ship was available, send it the full distance from Yichang to Chongqing, unload, repeat — wasted a boat's most valuable hours on stretches of river it wasn't suited for. Modern steamships were fast in open water but couldn't navigate the shallow, rapid-choked stretches nearer Chongqing that smaller wooden craft handled easily, and every hour a large steamer spent idle at a dock being loaded was an hour it moved nothing at all.
the move
Lu Zuofu split the Yichang-to-Chongqing route into three distinct segments and matched each type of vessel to the segment its hull and engine actually suited, rather than sending every ship the full distance — a method he had already tested during a 1936 drought. He requisitioned roughly 2,000 additional wooden boats from Chongqing and Hubei to cover the segments large steamers couldn't handle, and restructured the schedule so loading and unloading happened at night while ships ran at full speed by day, keeping the fleet in near-continuous motion instead of idling dockside during cargo transfers.
the payoff
Over 40 days from late October to early December 1938, the operation moved more than 30,000 people and over 100,000 tons of equipment and supplies from Yichang to Chongqing, under intermittent Japanese aerial bombardment; Minsheng Company itself lost 16 ships and 116 employees killed, with 61 more disabled, in the effort. The rescued machinery went on to produce hundreds of thousands of grenades, mortar shells and bombs per month for the rest of the war, and by June 1940 the broader wartime relocation effort Lu's methods enabled had moved more than 1.5 million people and over a million tons of cargo upriver in total.
what came after
The 1938 Yichang evacuation is remembered in Chinese industrial history as 'the Dunkirk of Chinese industry,' a phrase credited to the educator Y.C. James Yen, and Lu Zuofu's three-stage segmented-navigation method is cited as the operational core of how China preserved its industrial base to keep fighting after losing its eastern cities — a route-segmentation logic later echoed wherever an operation faces the same shape of problem: one hard bottleneck, mismatched equipment, and a fixed deadline.
filed under
references
- [1]抗战信物·时空对话｜历时40天的救亡奇迹：卢作孚与“宜昌大撤退”中国日报网 (China Daily), 2025cn.chinadaily.com.cn
- [2]Lu ZuofuWikipedia, 2026en.wikipedia.org