Search found 11 matches

by AlanW
Thu May 28, 2020 7:28 pm
Forum: DM42
Topic: My DM42 Is lost
Replies: 33
Views: 2328

Re: My DM42 Is lost

And I received today my classic boards from teenix, after a 70 days trip from Australia. :? The teenix website was interesting, particular the Hp-65 board. My Dad brought an HP-65 home from work when I was a youngster. It was awesome, particularly all the magnetic card packs. I remember you ran the...
by AlanW
Thu May 28, 2020 10:58 am
Forum: DM42
Topic: My DM42 Is lost
Replies: 33
Views: 2328

Re: My DM42 Is lost

My new DM42 just arrived in the UK 5 working days after being shipped - the postal service in Europe appears to be recovering ;)

All the keys are working well. Shift key looks a nice solid yellow. S/N 05171. Time to read the manual(s).

Alan
by AlanW
Fri May 22, 2020 4:16 pm
Forum: Firmware updates
Topic: Do not use Firmware V30 for DM1x/41
Replies: 2
Views: 274

Re: Do not use Firmware V30 for DM1x/41

That explains why I have had to replace the battery of my new dm15L after about 2 months, and when powered on the low battery indicator was on and the display blanked shortly after each key press. E+ON gave a battery reading of zero, and shortly afterwards the calculator went into a deep sleep, only...
by AlanW
Thu May 21, 2020 11:10 am
Forum: DM1x/DM1xL
Topic: [DM15] Aeronautical Calculations
Replies: 12
Views: 367

Re: [DM15] Aeronautical Calculations

All errors identified to date have now been corrected in the original post (including the description in the hp15c simulator save file)

Alan
by AlanW
Thu May 21, 2020 6:44 am
Forum: DM1x/DM1xL
Topic: [DM15] Aeronautical Calculations
Replies: 12
Views: 367

Re: [DM15] Aeronautical Calculations

Conversion between True Airspeed, (TAS), Computed Airspeed (CAS) and Mach Number (M) for a given Altitude in .... Although CAS is a computed airspeed, CAS denotes "Calibrated Airspeed". BTW TAS is a computed airspeed also. Günter I agree and will change 'Computed' to 'Calibrated' 'Computed Air Spee...
by AlanW
Tue May 19, 2020 9:46 pm
Forum: DM1x/DM1xL
Topic: [DM15] Aeronautical Calculations
Replies: 12
Views: 367

Re: [DM15] Aeronautical Calculations

Thanks for pointing out that it should be mbar rather than mb.
The licence is based on the BSD License which is from the US, while I'm from the UK.

Alan
by AlanW
Tue May 19, 2020 9:27 pm
Forum: DM1x/DM1xL
Topic: [DM15] Aeronautical Calculations
Replies: 12
Views: 367

Re: [DM15] Aeronautical Calculations

Errata: It's BS2G199:1984 not BS2G100:1984.
by AlanW
Tue May 19, 2020 9:18 pm
Forum: DM1x/DM1xL
Topic: [DM15] Aeronautical Calculations
Replies: 12
Views: 367

[DM15] Aeronautical Calculations

Conversion between True Airspeed, (TAS), Calibrated Airspeed (CAS) and Mach Number (M) for a given Altitude in accordance with BS2G199:1984. 1. Enter Altitude in feet and press A. Static pressure is displayed in millibars (mbar). Static temperature is stored in R6 2. Enter Calibrated Airspeed in kno...
by AlanW
Sun Mar 15, 2020 4:16 pm
Forum: Discuss!
Topic: Questions from a new dm15L owner
Replies: 8
Views: 4062

Re: Questions from a new dm15L owner

Calculators in Software : 1. HP-15c simulator of Torsten Manz (Win,MacOS,Linux,NetBSD,FreeBSD) 2. WP-34s 3. HP-32E emulator of Panamatik (HP-01 and other Woodstock/Classic emulators of his are nifty as well) 4. New kid on the block since Allschwil'18: Virtual HP-41 Release 9 (HP-IL built-in!) Thank...
by AlanW
Sun Mar 08, 2020 8:27 pm
Forum: Discuss!
Topic: Questions from a new dm15L owner
Replies: 8
Views: 4062

Re: Questions from a new dm15L owner

@Walter Thanks for pointing me at the comparison tool. Comparing the Hp-15c, Hp-41CX and Hp-42S confirms that the dm42 is on my wish list. @akaTB I assume there is some friendly rivalry regarding the merits of the different calculators. Hopefully everyone finds the one that meets their needs :) Than...