A History Lesson on Ramping Up Production of Critical Goods

As companies rush to try to make needed ventilators, it’s worth revisiting efforts to make more airplanes in World War II.

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During this critical moment when there are looming shortages in medical supplies, especially ventilators, policymakers and executives are drawing inspiration from World War II-era wartime production. On Tuesday, the Trump administration invoked the Defense Production Act to speed the procurement of COVID-19 test kits. Auto executives like GM’s Mary Barra and Tesla’s Elon Musk are repurposing their factories to fight the ventilator shortage and reports abound of smaller firms finding ways to pitch in.

For low tech items, the private sector has responded by quickly shifting production from non-essential products, like whiskey and apparel, to essential ones, like hand sanitizer and face masks. But, for more complex medical devices, like ventilators, industry experts warn that policymakers and the public should be cautious in placing too much hope in the hands of companies inexperienced with medical device production. Ventilators are complex, expensive machines that rely on dedicated global supply chains. In normal times, getting regulatory approval for new machines requires years of testing to ensure reliability and safety.

Revisiting the history of airframe production during the early 1940s is instructive in helping us understand what would be required to ramp up ventilator production to levels experts predict could be demanded by the public health crisis. In May 1940, President Franklin D. Roosevelt called for the manufacture of at least 50,000 new planes per year, up from annual production of around 6,000 in 1939. Responding to the president’s call, in January 1941 Ford Motor Company’s Edsel Ford and Charles Sorenson visited the plant of Consolidated Aircraft, the designer of the B-24 bomber, to see how Ford could help. Sorenson concluded, audaciously, that Ford could transform the production of airframes from traditional, craft methods to modern assembly line methods and, in the process, increase the rate of production from one bomber a day to one bomber an hour.

Sorenson’s prediction was eventually proven right. By mid-1944, Ford indeed was producing one B-24 per hour as promised. However, it took nearly 20 months from the time Ford won the military contract in February 1941 until it produced its first plane at its new plant in Willow Run, Michigan. And, even as late as February 1944, manufacturing at Consolidated Vultee—Consolidated Aircraft merged with Vultee Aircraft in 1941—was more efficient than Ford’s assembly line. By the time that the Willow Run plant was operating at peak capacity, wartime demand for new bombers was already on the decline.

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  1. John Cheyney

    Perhaps all for naught.

    https://www.thedrive.com/tech/32771/gm-deal-for-ventilators-pauses-over-cost-white-house-shops-around

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    Earl King

    I will warn using an old trope. Generals are always fighting the last war. The next pandemic could attack the liver and come from food or worse one of those flesh eating bacterias...ugh.
    In a relatively short period of time we have seen, SARS, MERS, SWINE, EBOLA outbreaks in the early part of this century. There is something in the National Response Framework (a plan for how to deal with disasters), the Govt. and HHS and FEMA have modeled and planned for a Pandemic..although you wouldn't know it. Pardon me if I am wrong on this...but I think a large majority of critical medical plastic tubing comes from China...As a medic I hear lots of stories like this. We are inventive...and if we can find tubing that allows two patients to share a ventilator...we have effective doubled the number we have. That is the most American thing I can think of....

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  3. John Cheyney

    I spent the first ten years of my nursing career as a pediatric critical care nurse. The vast majority of our patients were ventilated at some point in their stay. I think this article is absolutely spot-on. Ventilators are complex machines that require massive amounts of testing and training as well as long supply chains to work properly. I haven't seen anything that says current ventilators are inadequate in how they function, just that there are not enough of them. If you are designing a new vent you are taking the chance that it won't even be ready before this is over, much less in clinical usage.

    The lesson I took away from the story of Ford building B-24's was that they didn't design their own bomber. They built Consolidated's aircraft, but they used their knowledge of mass production to make it faster and better. Same with the M1 carbine, the Grumman Avenger, etc.

    There are risks worth taking and there are risks that aren't. I would much rather see GM/Tesla/Dyson/Ford, et al. throw their production weight behind this with proven designs that are already in use.

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      Aylene Wright

      From what I understand, the other problem hospitals are having is shortages of respiratory technicians to manage the ventilators. Modern ones are automated / computerized but still need to have settings adjusted, alarms troubleshooted, etc
      It's not like the mask shortage, where all you need to do is increase the number of masks.

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      1. John Cheyney

        That is completely true. I worked with some great RT’s. I know that nurses and doctors are getting all the press but the RT’s are right in the middle of this also.

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