underslung

supported from above (especially from the underside of a wing etc)

Adjective

  1. supported from above (especially from the underside of a wing etc)
    • The four-wheel bogies, of the underslung equalising beam type, are steel welded fabrications. - 1960 February 5, “High-Voltage Electric Locomotive for British Railways”, in Railway Magazine, page 125:
    • Fuel tanks for engines and boiler are underslung between the bogies; [...]. - 1961 August, “The English Electric Type 5 3,300 h.p. "Deltic" diesels for British Railways”, in Trains Illustrated, page 484:
  2. having a low center of gravity

Origin

From under- + slung.