5.09.2009

Stern Arch - Boom Gallows - Westsail 32






The boom gallows, stern arch on Mary Rose was original. It served Mary well for several decades. We felt we needed to replace it so we could create a design that would support new and necessary technological advances in navigation and energy generation. Yes we could very well have pieced together all of the individual items with their own various mountings, brackets and pipes. However we choose to redesign the entire aft stern arch. This allowed us to take advantage of several options that would not be available to us if we had just added on to the original arch. The advantages include, all wiring enclosed within the tubular framework, a hard rail design that allowed for cockpit seating, opening up additional deck space on the aft end of the boat, articulating arms for solar panels and more. We were fortunate to find it a new home on the Sailing Vessel Shaboom for the original boom gallows/arch that was removed. This has become a very nice trend, almost all of the items that have been removed from Mary Rose have found their way to new vessel for an extended life with new owners.

We contracted with Suncoast Specialties, 9161 131st Pl Ste F, Largo, FL 33773,727-584-3252 for this project. Bill (owner) worked closely with us from concept to final welding. The design was a joint effort between Suncoast, Admiral Nelson and myself. Bill took the original measurements and created the base design. We then worked off of some rather crude scale drawings that I did to assist with placement of the items to be hung on the arch. Bill tacked the base design together and delivered it for a test fit on the hull. We made a few modifications and we brought it back again for another test fit. The second test fit proved to be a very good idea. It was still tacked together so we were able to move the angle of the feet on the base so that they fit perfectly on installation.
We welded two inch stubs on the end of each leg so that the base would extend completely through the cap rail on final installation. The stubs were bedded with 3M 5200 and the bases were through bolted with 3/8 SS 316 bolts and fender washers. We were able to reach the back legs for through bolting by removing the hawse pipe flanges. These needed to be re-embedded anyway, so it was no real issue. The front legs were easily accessed through a removable port that was installed by a previous owner to bolt on the wench mounting brackets.
We pulled all of the wiring through the front legs as there is additional welding required on the back legs to accommodate the cockpit rail seating. The front legs have horizontal stubs welded on them to accept the 1 inch tubing for the hard rails going forward. The only wire for lifelines will be at the gates located at the shrouds on both sides of Mary Rose. We feel that the 1 inch hard railing enclosure will add a tremendous amount of safety to staying on board in rough seas with only two crew members aboard.
This was a very large project relative to the work that remained to accomplish prior to departure for our long awaited journey. This was a tough one as it caused us to remain tied to the dock during the process. No Sailing = No Fun!!!!!!!!!!!!! The Admiral and I can hardly wait for another extended sea trial to test all of the systems that were just modified.
Here is a detailed list of the items that are attached, supported by or will be attached to the stern arch when it is complete.

Garmin 18” HD Radome
GPS Antennae
Stern Nav Light
Aft Looking Flood Light
Forward Looking Flood Light
Loud Hailer (auto fog horn!!!!!!!!, we love this feature)
#2 VHF Radio Antennae
One 60 Watt and Two 110 Watt Solar Panels
Ships Bell
Satellite Antennae
Alpenglow Red/White Cockpit light
#2 VHF RAM Mic
Headsail Cleats
Cockpit Seating (3)
Boom Gallows
Pad Eyes For Tiller Ties
Bimini Framework

We will post more photos as we bring this project to completion.

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