One of the few existing projects that used a similar concept have.. > a ratio of payload to dead-weight of about 1:1, which is up to three times better than co

One of the few existing projects that used a similar concept have.. > a ratio of payload to dead-weight of about 1:1, which is up to three times better than conventional alternatives. https://en.wikipedia.org/wiki/Atmospheric_railway#Aeromovel https://en.wikipedia.org/wiki/Atmospheric_railway#Aeromovel