The Flying Stingaree

The big hand drawn tables would be replaced by a spreadsheet.

Could mail have made it from MD to NJ on the same day?
It's pretty updatable since we still launch rockets from Wallops Island.
But it seems less likely that the customer for the data would think the publicly available data is inaccurate.
Basutoland is now the Kingdom Of Lesotho and is entirely inside South Africa.

I found the ray hunt at the end to be disturbing.
Rick is killing rays just for the fun of shooting them since they made a point of saying the rays were inedible.
What old horror movie might the boys have been watching on TV.
In the Ken Holt reference, did the Megabuck radios show up in one of the Holt books?
There were more than usual references to eating and TV watching.