Parker Yahoo Group Archived Messages

ID	From	Subject	Date
367	McGuffey, David	RE: I''ll let you know how they work	3/18/2005 14:54:00
Keith, You're right--I couldn't find my old post either. Maybe when Wiley upgraded the site a few months back, some of the old archives didn't make the move. Anyway, I have a Parker 2150 with twin F115s. Bottom line is that the twin F115s add enough weight to the transom that the small OEM tabs don't have enough effect. I believe this set up is a bit more transom heavy and thus should have much larger tabs. The cost of tabs was high compared to the DoelFins. So I went looking for DoelFins. First I did some research and discovered that there were a lot of complaints against the DoelFins (and similar styles) that bolted onto the ends of the anti-ventilation plate. Appears that the constant flexing eventually cracks the plate. The recommendation was for the kind that bolt to the bottom of the anti-ventilation plate, and have full contact with the bottom of that plate. Only two manufacturers meet that--Permatrim and CoBra Marine. Permatrims were much more expensive, and I needed two. So I ordered two CoBra plates from Cabela's. They were much lower cost and worked great. Get the unpainted SS ones--the paint comes off over the long-haul anyway. The plates give the transom much more lift, and I don't have to trim the motors all the way in to get the bow down like I did without the plates. In fact, I can run the motors at almost the neutral position, and the tabs have become much more sensitive/effective. Actually improved my gph burn because the motors were more neutrally trimmed and the tabs weren't plowing furrows in the water like before. The plates are so effective, that If I trim the motors all the way in, I can force the bow down too far, and the ride gets squirrely. So...I'm very happy with the outcome. LTC Dave McGuffey (USA Ret.) aka Skopje on both thehulltruth.com and tidalfish.com -----Original Message----- From: Keith Tsuchiyama [mailto:<a href="/group/parkerboats/post?postID=vWQKsizXxxuxi-2Ur1-MezZkDVST0HMa4ZzpnICObj58i3NHd1MBDNy0rrxjnFyFpwfnyitSECUrITRQyhycq_u4bWRG">ktsuchiyama@...</a>] Sent: Friday, March 18, 2005 2:18 PM To: <a href="/group/parkerboats/post?postID=j3QzuAT5tHr_vd8bb_ysPCsRVXEOPbg843YrSJx6W72izCcW3jUOZfb4g0v3p8G-CPg9MT4mDlxco1-hF5cnp87c">'[email protected]</a>' Subject: RE: [parkerboats] I'll let you know how they work I tried to search for this dissertation, couldn't find it. sorry. -----Original Message----- From: McGuffey, David [mailto:<a href="/group/parkerboats/post?postID=82lwwJ8ABQsZLHkrPE7Um9lI77hq50QhSExDTJodslccQcBH_8G5H6AXtMwbO92OOfJVonFiKWBKgn6pS0llLniuEjM">david.c.mcguffey@...</a>] Sent: Friday, March 18, 2005 11:12 AM To: <a href="/group/parkerboats/post?postID=j3QzuAT5tHr_vd8bb_ysPCsRVXEOPbg843YrSJx6W72izCcW3jUOZfb4g0v3p8G-CPg9MT4mDlxco1-hF5cnp87c">'[email protected]</a>' Subject: RE: [parkerboats] I'll let you know how they work Obviously you didn't do a search on TheHullTruth.com and see my long dissertation on the CoBra plates I mounted on twin F115s on a 2510. -----Original Message----- From: Art Marshall [mailto:<a href="/group/parkerboats/post?postID=D8hddMuPknLWQJZTSYdTIACXWnjVTzW9dtnvqng0bjQ4uRzRSV4A2W6dfxHlUuyy6hkd0GkyA32lOI81RCP3ixCSG_BdLw">thehoseconnection@...</a>] Sent: Wednesday, March 16, 2005 10:04 PM To: <a href="/group/parkerboats/post?postID=9pFAkENLTikR0S9Q6QFgK9ilHlDd3I-U3pZmLB6RZfCfDdVqiPNrKmyFrI0zIaf_CDFtYXG1vfKhQa-wD5y2amvf5Q">[email protected]</a> Subject: [parkerboats] I'll let you know how they work As a means of decreasing my planing speed I have just purchased a set of Permatrims. I have been searching for an answer to the question " what's the best way to reduce planing speed and to hold plane?" I have found absolutely ZERO definite answers. I've seen similar questions on differing sites with responses like, doelfins, 4 blades, bigger tabs but, have yet to read " I did such and such and it works excellent/sucks". So I bit the bullet and will eventually let you guys know how they work. Why Permatrim? My dealer and a friend have had little success going the 4 blade route. Beside the fact $$$$. The dealer suggested doelfins, actually one set for two engines, just mounted to the outsides of either engine. I have heard that 2 sets would cause way too much stern lift and drag, and would adversly affect the ability to trim up. I hate running with the tabs fully tucked down so bigger tabs were never an option. The only choice for me was Perma. Hope it works or I'l have a few holes to fill in the cavitation plates when I remove them! Yahoo! 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