MIDD - multiple independent drug drops :-) I was going for a pun on MIRV but didn't quite get there. One of the things is that payload value is linear with volume and delivery platform cost is inverse exponential with size. Seems like the ultralight as a 'platform' hits a sweet spot. The rail gun the navy is looking at should be able to lob a projectile 200 miles so perhaps we can look forward to artillery delivery of drugs into southern AZ.