DaveH6
Dinette seat panels
Glad to be finally using up the scraps of plywood left after hull, bulkhead and bottom construction. This is work in progress on the dinette seats. I was careful in ensuring that the two panels attached to the topsides are parallel thus when the table is dropped to form a berth, the fit is proper.
Currently overthinking the cabinet that will support the crew's seat. How is it best configured for storage? Any rigidity issues with this narrow and tall cabinet?
* Edit:
A recent posting on a Internet boat building forum reinforced Tom's comment on my unnecessary taping of cabinet seams. The forum poster performed destructive testing on two pieces of wood glued at a 90 degree angle. The testor installed a filet and fiberglass tape on the seam. I don't recall the type of wood nor weight of the fiberglass. Using a hydraulic jack, he busted the seam apart. The testor reported that the fiberglass tape started pulling away from the wood while the filet held its ground well into the test. The testor marvelled over the unexpected strength of the filet.
I had thought that filets were primarily if not soley installed to provide a gentle journey for the fiberglass tape through the 90 degree angle. I now understand the structual value of a filet.
I have been following a debate on the value of applying tape on both sides of a seam for a structual bulkhead. Imagine bending a major bulkhead towards the transom. The fiberglass tape on the bow side of the bulkhead will be in tension which is the direction that fiberglass has its greatest strength thus adding resistance to pulling the seam apart. The tape on the transom side of the seam will be in compression thus the fiberglass not so strong. All this according to a forum poster. I am only qualified to be the messenger. But then again some pundits argue that the filet material is brittle epoxy thus the fiberglass tape in compression helps keep the filet material from crumbling.
Some argue that wood boats were held together via glue seams long before the arrival of fiberglass thus applying this material to a seam is a waste of time and money. Others argue the merits of increased strength from fiberglass seam reinforcement. I find that the time and expense of applying tape on each side of a major bulkhead seam is a minisclue consideration in the overall scheme of things. Consequently, I believe that fiberglass on a bulkhead seam is time well spent to create a stronger attachment. I also subscribe to Devlin's recommendation to use fiberglass with a 45 degree bias thus every strand crosses over the seam on a major bulkhead attachment to a hull. No doubt someone will dispute Devlin's recommendation because Devlin failed to consider the modus of elasticity where the fram-a-stantial widget connects to the ki-nit-nee pin. And who said that building a wooden boat isn't rocket science.
This seam taping debate is another example of the foolishness of aspiring to the quest of building a boat in the prescribed "right" way since this definition is elusive if not non existant. When confused by a debate, I defer to folks like Tom Lathrop who have built and used boats for decades thus know what works.
Dinette seat panels
Glad to be finally using up the scraps of plywood left after hull, bulkhead and bottom construction. This is work in progress on the dinette seats. I was careful in ensuring that the two panels attached to the topsides are parallel thus when the table is dropped to form a berth, the fit is proper.
Currently overthinking the cabinet that will support the crew's seat. How is it best configured for storage? Any rigidity issues with this narrow and tall cabinet?
* Edit:
A recent posting on a Internet boat building forum reinforced Tom's comment on my unnecessary taping of cabinet seams. The forum poster performed destructive testing on two pieces of wood glued at a 90 degree angle. The testor installed a filet and fiberglass tape on the seam. I don't recall the type of wood nor weight of the fiberglass. Using a hydraulic jack, he busted the seam apart. The testor reported that the fiberglass tape started pulling away from the wood while the filet held its ground well into the test. The testor marvelled over the unexpected strength of the filet.
I had thought that filets were primarily if not soley installed to provide a gentle journey for the fiberglass tape through the 90 degree angle. I now understand the structual value of a filet.
I have been following a debate on the value of applying tape on both sides of a seam for a structual bulkhead. Imagine bending a major bulkhead towards the transom. The fiberglass tape on the bow side of the bulkhead will be in tension which is the direction that fiberglass has its greatest strength thus adding resistance to pulling the seam apart. The tape on the transom side of the seam will be in compression thus the fiberglass not so strong. All this according to a forum poster. I am only qualified to be the messenger. But then again some pundits argue that the filet material is brittle epoxy thus the fiberglass tape in compression helps keep the filet material from crumbling.
Some argue that wood boats were held together via glue seams long before the arrival of fiberglass thus applying this material to a seam is a waste of time and money. Others argue the merits of increased strength from fiberglass seam reinforcement. I find that the time and expense of applying tape on each side of a major bulkhead seam is a minisclue consideration in the overall scheme of things. Consequently, I believe that fiberglass on a bulkhead seam is time well spent to create a stronger attachment. I also subscribe to Devlin's recommendation to use fiberglass with a 45 degree bias thus every strand crosses over the seam on a major bulkhead attachment to a hull. No doubt someone will dispute Devlin's recommendation because Devlin failed to consider the modus of elasticity where the fram-a-stantial widget connects to the ki-nit-nee pin. And who said that building a wooden boat isn't rocket science.
This seam taping debate is another example of the foolishness of aspiring to the quest of building a boat in the prescribed "right" way since this definition is elusive if not non existant. When confused by a debate, I defer to folks like Tom Lathrop who have built and used boats for decades thus know what works.