Commuter Airplane design optimization

[Maximilian Hohmann]

Hello!

(11-12-2020 03:00 PM)SlideRule Wrote:  " 8.5 HAND CALCULATION
With the aid of an HP 25 calculator a hand calculation was done for
airplane C. See Appendix C for a threeview and data. Table 8.3 shows the
results of the calculation. Comparison with the computer-run indicated
perfect agreement. "

Yes. I saw that too. But isn't it the normal way to verify the results of a computer program (unless it is too complex), to check it's results against a manual calculation? I did (and do) that with all programs that I wrote (and write). This can be done with any calculator. The authors of that paper happened to have access to an HP-25, but as much as I like that calculator myself - one of my favorites of all time - this does not specifically contribute to it's merits.

Regards
Max