Back in Sept Henry Clews wrote: Getting back on topic, we too have been looking at cruising powercats in the 34 - 37' range over the past several years. The Endeavour 36 caught our eye early on as we followed the exploits of Don & Ruth Kalen aboard their Odyssey We liked (and still do) the simple one-helm layout. But then we saw the big comfortable Trawlercat 44 and (particularly my wife) fell in love with the walk-around bed and all that SPACE! But reality (read $$$) began to set in and we realized we didn't really need (and couldn't afford) a 44-foot boat for just the two of us. Also, as an engineer, I started looking at the relative efficiency of various models. Powercats offer the potential of great fuel saving at above-displacement speeds. Many allow for relatively economical cruising at speeds in the 12 to 18 knot range. Compared to a monohull which must get up on a plane to reach these speeds, a well-designed powercat consumes about one-third as much fuel as a monohull. At today's fuel prices, that's a big deal! But to get this efficiency, they have to be lightweight and they have to have skinny hulls (L/B better than 10). Of the various designs I compared in this regard, the PDQ ranked #1, Foutaine Pajot #2, and Endeavour #3. __________________________________________ Brian ask: Would you mine expanding on this analysis you made, and how you arrived at the results. What proportions you assigned slenderness ratio, vessel weights, etc?? And where did you obtained the performance figures for the various models with the various engine choices? Henry, I'm not trying to challenge any of your results, just interested in your analysis, that is most likely more through than most folks explore.