Comments on: Robinson Helicopter Weight and Balance

By: Steve

Steve — Thu, 10 Mar 2011 20:24:48 +0000

Hi Marcus,

Many thanks for your comments.

You are quite correct. I have made the small modification to the CG limits for the R44 Raven I and uploaded a new version of the spreadsheet.

Thanks!

Steve.

By: Marcus

Marcus — Thu, 10 Mar 2011 18:38:18 +0000

Steve, great job!

For further improvement: Closely looking on the cg limitations according to R44 Raven I POH page 2-4, I see the chart line reaching from (2200 lbs; 92.0 in) towards (2400 lbs; 93.0 in) as opposed to your spreadsheet reaching from (2200 lbs; 92.0 in) via (2300 lbs; 92.0 in) towards (2400 lbs; 92.5 in), providing some extra space for cg limit violations.

I guess this allowed you simplification to have a single spreadsheet for both the Raven I & II, but I would appreciate a respective refinement.

Marcus

By: Steve

Steve — Sun, 04 Jul 2010 14:08:30 +0000

The spreadsheets for both the R22 and R44 have been updated. The layout is now cleaner than ever, with all the lookup tables moved out onto a separate page. The drop-down aircraft-selection list now updates automatically as you add more aircraft to the data table, and there’s no more fiddly locking/unlocking to update the values.

Just directly type in the details of your aircraft, and you’re good to go in seconds!

By: Steve

Steve — Sat, 23 Jan 2010 00:42:32 +0000

Hi Jim,

Many thanks for your interest.

The pressure altitude and temperature boxes are used to calculate the density altitude. Simply enter your current pressure altitude in feet and the ambient temperature in degrees Celsius, and it will tell you your current density altitude. It doesn’t do anything with this figure, it’s just there to give you a heads up regarding performance in case your density altitude is higher than you think!

If you would like a version that does the calculation using degrees Fahrenheit, I’ll make the conversion and get back to you with a new spreadsheet.

Thanks again. If you need any further help, just ask!

Steve.

By: Jim

Jim — Sat, 23 Jan 2010 00:22:14 +0000

This is so well done! I am a Robinson pilot and will donate to your software as well tell other about it.
Can you please tell me how to use the Alt. and temp feature? It gives a 3 digit negative number when I enter
the pressure alt and the outside air temp.

Thank you again,

Jim

By: Johan

Johan — Sun, 08 Nov 2009 06:23:52 +0000

Steve, Neat utility!

By: Bell 206B Helicopter Weight and Balance – Steven Hale Photography

Bell 206B Helicopter Weight and Balance – Steven Hale Photography — Tue, 03 Nov 2009 18:48:48 +0000

[...] the success of my CG calculator for the Robinson R22 and R44, I have now produced a version for the Bell [...]

By: Steve

Steve — Mon, 05 Oct 2009 08:46:14 +0000

Thanks! I don’t have the file here right now, but I’ll email it over to you later today.

By: John

John — Mon, 05 Oct 2009 08:38:25 +0000

Hi Steve
thats so far the best Excel CG sheet I found – congratulations for the good work!
As I’m currently doing/searching one for a JetRanger I would appreciate if you can forward me your Beta Version and we can work out finalizing and testing it together (I’m more than willing to share)…
John

By: Steve

Steve — Wed, 12 Aug 2009 07:29:17 +0000

Hi JT,

I did actually start working on a version for the Jetranger III, but I never fully tested it and so I haven’t put it online.

If you like I can send you the file as far as I got, and you can have a look to see if it is any use to you?