Estimating hrs for docs

[Krishna Mukherjee]

I needed some input on how to plan new and updated documentation. We are in the Semiconductor business, working on user guides, reference manuals, and silicon validation reports. If you feel that this discussion is off-topic, please feel free to send me an email with your suggestion:
knukh at hotmail.com
 
Here is an estimate that I came across the STC website. Is this reasonable? Our documents are in Frame and Word. The final output is in PDF format. 
********************************************************************

Baseline from the STC website:
 
Writing new text 3 - 5 hours per page
 
Revising existing text 1 - 3 hours per page
 
Editing 6 - 8 pages per hour
 
Production preparation 5 percent of all other
activities
 
Consider this preliminary estimate to represent the
number of hours needed if you follow your “normal”
development process and if the project proceeds without
any major problems. 
******************************************************************************
 
 
Thanks,
Krishna
_________________________________________________________________
Express your personality in color! Preview and select themes for Hotmail®. 
http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme