User Library 02011-41 Engine Trend Monitoring

[fmujica]

Hello

I am an HP-41 owner since 1977, and in early 80s I wrote the program for monitoring PT6A engines and I sent to the HP Users Library, and they published as:

02011-41 Engine Trend Monitoring Program for PT6A-11/21/25/27/28.

I found the detail I enclosed in the HP Users Library Catalog 1989, found in https://literature.hpcalc.org/

Since that time I loose all paperwork for that program, and I would like to know if somebody could have that program I wrote.

Greetings

Fernando Mujica


  02011-41 Program description.pdf (Size: 29.12 KB / Downloads: 15)

[rprosperi]

What company made that engine? I recall seeing (somewhere?) either the program or documentation for a jet (or turboprop?) engine some time in the last year, perhaps that's it, but knowing who the manufacturer was might make it easier to find or for someone to remember.

The 41C came out in late 1979, so you probably got one then, they weren't around in 1977.

[fmujica]

Hello Bob,

Thanks for your reply.

The engine was made by Pratt & Whitney of Canada (P&WC) and this was a turboprop.

My mistake... In 1977 I bought the HP-25, and the HP-41 in 1979.

Greetings

Fernando Mujica

[Ángel Martin]

(04-27-2024 12:37 AM)rprosperi Wrote:  What company made that engine? I recall seeing (somewhere?) either the program or documentation for a jet (or turboprop?) engine some time in the last year, perhaps that's it, but knowing who the manufacturer was might make it easier to find or for someone to remember.

Maybe you were thinking of this one?

[teenix]

(04-27-2024 12:37 AM)rprosperi Wrote:  What company made that engine?

Pratt and Whitney

I flew with that engine doing low level survey in a PAC 750XL aircraft.

I remember once trying to land on an outback sandy strip with an engine oil leak smearing all over the cockpit window. Interesting moment judging the runway center line looking out the side window after touch down. It turned out to be a faulty seal on the prop governor.

cheers

Tony

[rprosperi]

(04-27-2024 05:24 PM)Ángel Martin Wrote:  Maybe you were thinking of this one?

No, the one I saw was related to measuring / managing some kind of turboprop engine, though I think it was a commercial product, perhaps with a ROM or overlay, or maybe a printed manual. It might be among a bunch of 41 stuff I bought in a collection (rather than seeing online or here in the forum, etc.) but impossible to locate at the moment as most of my calculator stuff is in the midst of a storage transition/filing/organizing and I can't check a single place.

I will search when I can and post anything I find.