I believe that 'Grand Fleet' was the 1st edition pub by ???, while Mongoose pub a 2nd ed titled 'Sector Fleet'.

It covers the CT era of the TU, but, it wasn't actually published during the 'real-world' time that CT was the official ver of Traveller.

And  that can lead to discrepancies.

----------------------------------------------------------------------------------------------------------------
On Sat, 8/30/14, Andrew Long <andrew.long@mac.com> wrote:

 Subject: Re: [TML] "Appropriate technology" and trade in Classic Traveller
 To: tml@simplelists.com
 Date: Saturday, August 30, 2014, 2:04 PM

 On 30 Aug 2014, at 21:49,
 Thomas Jones-Low wrote:
 > On 8/30/2014
 4:42 PM, Timothy Collinson wrote:
 >>
 What about Grand Fleet?  I can't recall it's
 contents well enough to recall
 >>
 whether it would help, but ISTR that despite it's late
 publication date -
 >> wasn't it
 CT?
 >>
 >
 >     Grand Fleet was technically a T20
 era publication. It is systemless, which means it's
 missing details but may serve as a guide.

 Here's (http://index.rpg.net/display-entry.phtml?mainid=8207)
 what RPG.Net has to say about Grand Fleet:-

 "Grand Fleet deals with
 the Grand Fleet of the Third Imperium – the Imperial Navy.
 It is set in the Official Traveller Universe, in the period
 just after the end of the Fifth Frontier War. As such it is
 compatible with either the official Hard Times – Collapse
 – Recovery – New Era timeline or an alternate wherein
 the assassination of Emperor Strephon does not occur. All
 material is also equally valid for the 993 era of the
 Gateway Domain, with the exception of events that have not
 yet occurred in Imperial history. The information contained
 within this book can also be extrapolated forward into the
 Hard Times, Civil War and Collapse periods and provides a
 starting point when considering the navies of the New Era.
 The fleets of the Regency, the Fourth Imperium, Ziru Sirka
 and Black Imperium are all based on the Grand Fleet’s
 designs and organization."

 Regards, Andy

 --
 Andrew Long
 Andrew dot Long at Mac dot com

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