How to secure dinghy

Post here if you want to discuss a topic specific to the MV/32, MV/34, and MV/41.
User avatar
thinwater
admiral
admiral
Posts: 915
Joined: Mon Sep 22, 2008 8:08 am
Contact:

Re: How to secure dinghy

Postby thinwater » Mon Sep 05, 2016 11:43 am

AMCarter3:

a. I'm Drew. Tom Patey is a famous Scottish ice climber with a quote I like. I too have an ice climbing habit.

b. The boat is a PDQ32 sailboat. However, the cris/cross line pattern is universal. I've had tackle fail underway in rough conditions, and it isn't pretty trying to recover the dinghy. I'm not the only one.

Image
Writing full time since 2014.

http://sail-delmarva.blogspot.com/2017/ ... store.html
"Keeping a Cruising Boat for Peanuts"
"Singlehanded Sailing for the Coastal Sailor"
"Faster Cruising for the Coastal Sailor"

duetto
admiral
admiral
Posts: 586
Joined: Wed Jun 15, 2005 11:18 am
Location: ICW (32043)

Re: How to secure dinghy

Postby duetto » Mon Sep 05, 2016 1:30 pm

sorry mac,

boat's in fl, we're in ct.
john & diane cummings
duetto mv34 #23

AlanH
1st mate
1st mate
Posts: 28
Joined: Mon Apr 25, 2016 3:55 pm

Re: How to secure dinghy

Postby AlanH » Mon Sep 05, 2016 2:50 pm

John,

Here are some extra pictures of mine. It looks identical to Mac's to me. When we bought the boat I am almost positive Beth at Rhumb line told me it had the new davit system. See what you think when you get to your boat.

Alan

unnamed.jpg
unnamed-1.jpg
unnamed-2.jpg
AlanH
Catbo
2006 34' Hull #81
75hp engines

John&Ria
skipper
skipper
Posts: 54
Joined: Mon Feb 13, 2012 3:07 am
Location: Vancouver BC (PDQ 34 hull 111)
Contact:

Re: How to secure dinghy

Postby John&Ria » Mon Sep 05, 2016 3:12 pm

Hi Alan,

Yup, from the port side your davit design looks identical to mine. What has me stumped is the second (vertical) stainless steel stanchion that can be seen in the picture of your davit's starboard side. I'm not sure what this second stanchion is for - perhaps something added later to strengthen your davit structure?

We don't have this second stanchion on our boat, which gives us the room to tuck the aft end of our dingy's starboard tube behind the stanchion that is angled away from the stern. Having the ability to do this helps significantly in restricting any lateral movement of the dinghy while underway.

Bottom line, it certainly looks like you have the newer version of the davit system.

John

User avatar
AMCarter3
skipper
skipper
Posts: 84
Joined: Thu Apr 21, 2016 8:32 am
Location: Bellingham, WA
Contact:

Re: How to secure dinghy

Postby AMCarter3 » Mon Sep 05, 2016 3:42 pm

Drew, great graphic of Tom Patey; an excellent analogy! The "devil" is certainly hidden in the details on these boats.

Alan, thanks for the additonal pics!
Mac Carter
2006 34' PDQ PowerCat "All Heart", Bellingham WA

AlanH
1st mate
1st mate
Posts: 28
Joined: Mon Apr 25, 2016 3:55 pm

Re: How to secure dinghy

Postby AlanH » Mon Sep 05, 2016 5:32 pm

John,

I took another picture. I think I know what you are seeing. It is the engine hoist which was added by the last owner. Right now it is just connected to the davit to keep it from swinging around.

Alan


unnamed-3.jpg
AlanH
Catbo
2006 34' Hull #81
75hp engines

John&Ria
skipper
skipper
Posts: 54
Joined: Mon Feb 13, 2012 3:07 am
Location: Vancouver BC (PDQ 34 hull 111)
Contact:

Re: How to secure dinghy

Postby John&Ria » Tue Sep 06, 2016 1:53 am

Alan,

That picture helps explain the mystery. Depending on the diameter of your dinghy's tubes the additional stanchion may make it too tight a fit to duplicate what we do. You should get a better sense of this once I can post some pictures from our own boat.

John

John&Ria
skipper
skipper
Posts: 54
Joined: Mon Feb 13, 2012 3:07 am
Location: Vancouver BC (PDQ 34 hull 111)
Contact:

Re: How to secure dinghy

Postby John&Ria » Tue Sep 06, 2016 9:27 pm

Hi Mac and Allan,

Here are photos of our dinghy secured to His Idea. Hopefully they will be of use to you. In this case pictures are certainly better than words, but let me know if you have any further questions.

Cheers,

John
Attachments
DSC00361.JPG
DSC00360.JPG
DSC00359.JPG
DSC00358.JPG
DSC00357.JPG
DSC00356.JPG

AlanH
1st mate
1st mate
Posts: 28
Joined: Mon Apr 25, 2016 3:55 pm

Re: How to secure dinghy

Postby AlanH » Tue Sep 06, 2016 10:20 pm

John,

Thanks for the pictures. I think I understand how you have it secured. I am going to work with my starboard tube to see if I can get it all the way behind the davit support.

Alan
AlanH
Catbo
2006 34' Hull #81
75hp engines

User avatar
thinwater
admiral
admiral
Posts: 915
Joined: Mon Sep 22, 2008 8:08 am
Contact:

Re: How to secure dinghy

Postby thinwater » Sat Sep 10, 2016 6:02 pm

The thing I like about tricing lines is the redundancy. I have a tender fall twice:

1. The spreader at the front snapped (the PO had made it from something like Starboard--stupid, so I made a new one from aluminum square tube), dropping the front while sailing single handed in a big wind single handed. I grabbed the painter, clipped that to the boat, lowered and then cut the back end loose, and towed it to more sheltered water. No harm done, but there could have been.

2. The webbing on the back chafed through on a hidden sharp spot. This time I had the chute up, so even slowing was nearly out of the question. Dropping it in the water would have been unsafe at speed. I went down the sugar scoop, attached a new line looped over the davit, and winched it back up. A safety tether was required.

Now I always trice it up. Unlike a strap that pulls it in, the tricing lines will hold the dinghy even if any two lines fail. You may never have a line failure... but I bet you will if you sail long enough. All it takes is one loose shackle pin, bit of chafe, or a failed dinghy eye....
Writing full time since 2014.

http://sail-delmarva.blogspot.com/2017/ ... store.html
"Keeping a Cruising Boat for Peanuts"
"Singlehanded Sailing for the Coastal Sailor"
"Faster Cruising for the Coastal Sailor"

PDQ Hull 11
deckhand
deckhand
Posts: 3
Joined: Sat Oct 11, 2014 1:23 pm

Re: How to secure dinghy

Postby PDQ Hull 11 » Wed Sep 14, 2016 5:02 pm

My boat (hull 11) has the original davit design and I carry an 8' 6" Walker Bay RHIB with a 2.3 HP Honda 4 stroke air cooled engine on it. The whole package weighs barely more than 100 pounds. I originally had a Merc 9.9 HP engine on the RHIB but found it too heavy for our boat. I bought my PDQ in southern California and brought it north to the Puget Sound area the summer of 2013. The 1400 nm voyage included a crossing of the Columbia River bar in 14 foot breaking waves. We did not have issues with the stability of our dinghy on the davits during the trip. The approach I used for securing it involved four rachet straps with one from the RHIB bow to the davit riser immediately forward of the bow (it ran parallel to the fore and aft line of the boat). I did the same with the stern of the RHIB. The other two straps I ran diagonally to create and X pattern with one strap going from the outboard RHIB stern to the vertical davit bar that also secured the the bow strap mentioned above. The other strap ran in the opposite direction from the outboard RHIB bow to the vertical davit bar that also secured the stern strap mentioned above. The only disadvantage that I found with this arrangement is that it can take a lot of time to set it up, and also to un do the arrangement. When I cruise on "inside waters" I usually simply use the first set of straps without using the diagonal X straps.

jgonnerman
skipper
skipper
Posts: 59
Joined: Sun Oct 10, 2010 5:04 pm

Re: How to secure dinghy

Postby jgonnerman » Sat Sep 17, 2016 1:00 pm

Hopefully the photo can be opened.

My solution is 2 crossed ratchet straps. One end on bench base, my boat has an eye, passing under dinghy over top at mid dinghy to the opposite bench end. The paired straps keep the boat completely tight against the davit and there is no motion. Straps are cheap from harbor freight. I cut the web ends from a 4 pack and sew them on a the remaining straps to add required length.

As a precaution I will put one or both straps through the oar lock but it doesn't seem to make a difference.

I don't bother which stainless ratchets as the webbing goes before the ratchet.
Attachments
IMG_3891.JPG
John Gonnerman
San Diego Ca
"Westend Express"
2002 34 Hull 20

User avatar
thinwater
admiral
admiral
Posts: 915
Joined: Mon Sep 22, 2008 8:08 am
Contact:

Re: How to secure dinghy

Postby thinwater » Sat Sep 17, 2016 1:16 pm

IF you took the straps up to the outside end of the davit you would have redundant support. That is basically what I did. This way, you still single failure points.
Writing full time since 2014.

http://sail-delmarva.blogspot.com/2017/ ... store.html
"Keeping a Cruising Boat for Peanuts"
"Singlehanded Sailing for the Coastal Sailor"
"Faster Cruising for the Coastal Sailor"


Return to “PDQ Powercat Forum”

Who is online

Users browsing this forum: No registered users and 2 guests