HP-11C: What is going on with the asking prices?

[Les Bell]

(03-19-2015 12:46 AM)Jlouis Wrote:  Don't be embarassed. At the First time I read it, I googled and found nothing

You should have found "True Air Speed" (as opposed to "Indicated Air Speed"). In fact, I'm pretty sure it can be found in the occasional HP calculator manual.