Friday, February 22, 2019

Thursday, February 21, 2019

NC-4 Flying Boat Line Drawings

21 Feb 19:

So now you can build your own!

(Resource Credit: The Curtiss Aeroplane and Motor Corp. National Naval Aviation Museum NC-4 Files. 2019)

Log of NC-4

Tuesday, February 19, 2019

Galloping Horse and Great Spirit Problem Solving Matrix

17 Jan 18:
19 Jan 19:

The Prep Season is upon us, a good time to review the Restoration Problem Solving Matrix. Enjoy the Season! And holler if you need help with a project.

So we have tips that will help you get over a some boat builder worries, 1) Staring at the part that you are working on and trying to decide if it meets someone's arbitrary universal standard, and/or 2) Making a mistake and trying to decide if it needs to be fixed.

Here are the criteria we use.

Gallopping Horse (GH) Criteria:
The Skipper's criteria is "Would you notice it from a galloping horse?" She got this valuable tip from her Grandma. It may be self explanatory, but imagine if you rode by the boat on a galloping horse, would the piece in question be noticeable? If not, then continue on. If so, review the following additional criteria before making a decision.

Great Spirit (GS) Criteria:
So maybe you did notice it when you galloped by. My Native American criteria is that only the Great Spirit can make something perfect, so it is best to leave small mistakes in the work as tribute. Plus if your boat gets stolen and recovered by the authorities, you'll be able to point out all the mistakes to them as proof of buildership. That is of course, unless they point all of them out to you first.

Which leads to our last, final and "ultimate authority" criteria, which shall be the tie breaker if you are stuck after applying the Galloping Horse and/or Great Spirit decision criteria...

If They Don't Like It... (ITDLI):
Capn Jack always says that if someone looks at your finished boat and says they don't like it, then they don't get to go on the boat :)

The ITDLI criteria is helpful for decisions for items that you may not even have had a hand in, for example, the design of our Drascombe Lugger jib furler. We were rigging the Lugger on the ramp one day and some landlubber walked up and said "Roller reefing on that boat is asinine." Skipper abandoned her duties as PIO and walked away. I ignored him. We assigned the ITDLI criteria to the Ramp Ranger and from that point there was no concern about offering to take him sailing.

So we hope these tips become helpful tools in your tool box, they have saved us hours of moaning chair time.

Fair Winds
Skipper and Clark

Gratuitous boat picture


See also Moaning Chair

Wednesday, February 13, 2019

NC-4 Flying Boat Hull Design

13 Feb 19:

"During 1912 Naval Constructor Richardson conducted a series of model basin tests on the planing properties of seaplane floats and hulls which have proved to be perhaps the most important and fruitful research ever undertaken by the Navy. Richardson for the first time showed the effect of the form of the float on its water performance, and from these tests he evolved the lines of United States Navy seaplane floats and hulls which have since that date made them a standard for others to follow. Richardson's tests showed the advantages of Vee bottom, long easy form, spray strips, and single step with sharp rise of after body."





Ref:
-A History of Naval Aviation https://www.history.navy.mil/content/dam/nhhc/research/histories/naval-aviation/pdf/History%20(1).pdf

Log of NC-4 Flying Boat

Saturday, February 9, 2019

Alcort ALC-12 Trailers, Covers, Spar Bags and Price List

09 Feb 19:

Alcort offered trailers for their Sailfish, Sunfish and Catfish in the mid 1960s, an alternative to cartopping.










The design elements can be seen in the SUT-220-S trailer offered by Trailex.

(Image credit: Trailex).

Channel Marker Yard Art Repair

06 Feb 19:

Tropical Storm Lee brought us a channel marker a few years back, we keep it in the back yard, time is taking a toll. So we decided to fix it up a bit, replace the rotting part with 1/2 inch marine grade plywood, then put on a new backer piece of 3/4 inch marine grade plywood fastened with silicone bronze screws and THIXO. Reflective tape is on order and we have to find that strange color pink/orange/red for the panel.


WWI US Corps of Engineer's Pocket Compass

09 Jan 19:

We have been looking for a pocket compass to use on our small boats, and came across the Corps of Engineer's compass from the World War I timeframe. Made by Taylor. Brass case, bar needle, jewel bearing. 1 3/4 inch diameter. Pocketwatch style compass is marked USCE on the outside of the case. These compasses were issued to engineers in WWI and were also available for sale to the public but as unmarked.




1980 Drascombe Lugger ONKAHYE Trail, Launch, Jib Furler and Motor Shim

09 Feb 19:

Here's a few videos we shot last year to show how we trail the Lugger, set up the Lugger for launching, and how we shimmed the motor.







Road Ready:



Motor Shim:



Roller Furling:



Log of ONKAHYE.

Curtiss NC-4 Flying Boat

08 Nov 18:

"The NC-4 was a Curtiss NC flying boat that was the first aircraft to fly across the Atlantic Ocean, albeit not non-stop. The aircraft was designed by Glenn Curtiss and his team, and manufactured by Curtiss Aeroplane and Motor Company, with the hull built by the Herreshoff Manufacturing Corporation in Bristol, Rhode Island. The design requirement emerged during WWI, the US Navy needed anti-submarine aircraft on the Eastern side of the Atlantic and a safe way to get them there, hence the need for an aircraft that could cross the Atlantic on it sown versus being shipped across.
In May 1919, a crew of United States Navy aviators flew the NC-4 from New York State to Lisbon, Portugal, over the course of 19 days. This included time for stops of numerous repairs and for crewmen's rest, with stops along the way in Massachusetts, Nova Scotia (on the mainland), Newfoundland, and twice in the Azores Islands. Then its flight from the Azores to Lisbon completed the first transatlantic flight between North America and Europe, and two more flights from Lisbon to northwestern Spain to Plymouth, England, completed the first flight between North America and Great Britain."


We've been to see her in the Pensacola Naval Aviation Museum and she is in beautiful shape.

(Image Credit: Small Boat Restoration)

From Catalogue Raisonne:
Name: [NC-4 Seaplane Hull]
Type: Navy F-5-L Seaplane
Designed by: Curtiss, Glenn
Contract: 1918
Construction: Wood, Sitka Spruce hull planks, Ash
LOA: 45' (13.72m)
Beam: 10' (3.05m)
Hull Weight: 2,800 lbs
Displ.: 28,00 lbs (1,270 kg)
Propulsion: N/A
Built for: U.S. Navy
Current owner: Smithsonian Institution, on loan to National Naval Aviation Museum, Pensacola, FL (last reported 2018 at age 100)

Trivia bits:
-The designation NC came from the cooperative effort of the Navy (N) and Curtiss (C) to build the aircraft.
-Tow other Nancies (NCs) attempted the flight, but did not complete it. NC-1 was lost at sea, crew rescued. NC-3 was forced to land just outside the Azores and was damaged, the crew sailed her into port through gale force winds and 30-40 foot seas.
-The flight covered 3936 miles with 52 hours 31 minutes of flight time over 19 days.
-Chief Machinist Mate Eugene Rhoads was a pilot as well, but not a designated Naval Aviator. He went on to a fine career as a pilot.
-Herreshoff Manufacturing Company, a builder of the finest ocean crossing boats, built the hull.
-The engines' fuel supply is gravity fed. Little propellers behind the center Liberty V-12 engines are part of a windmill pump system that pumps fuel from the main tanks up to the gravity tank in the upper wing.


-The aircraft had an intercommunications system.
-NC-4 is so cool that she has a march written for her!



From the HMCo Construction records, several flying boat hulls on order as well.


On the bow there is a night landing flare system, with a button inside the Navigator's compartment to fire them. There are several reports of the flares being inadvertently fired during ground service.




(Video Credit: Office of Information, US Naval Photographic Center)

Take a virtual flight in NC-4, through the magic of the game physics sandbox game Garry's Mod.



08 Fe 19:

NC-4 arrived in Plymouth, England on May 31, 1919 and tied up at the Barbican in Sutton Harbour. NC-4's arrival was scheduled as a tribute to the Mayflower voyage, there is a commemorative plaque placed next to the Mayflower Steps, where the Pilgrims set off for the New World in 1620. Our friend Doug E. snapped this photo of the plaque.


If you'd like to own a piece of the wing fabric, contact Mike at Aviation Relic Prints. We just received our square of wing fabric, relic print and historical information, a fantastic piece of flying boat history.

We are gathering information for an article, if you have any stories or photos from folks who built, maintained or flew the aircraft we'd love to hear them and add to the historical record. Leave a note below!

FMI:
HMCo #341p Sea Plane Hull NC-4
HMCo #341p Sea Plane Hull NC-4 (1918, Extant); Navy Seaplane (hull only) designed by Curtiss, Glenn; built for U.S. Navy
Office of Information, US Naval Photographic Center. The Great Flight. 1970.
NC-4 Wikipedia
Silberg and Haas. 2011. Developing the Navy’s NC Flying Boats: Transforming Aeronautical Engineering for
the First Transatlantic Flight

Thursday, February 7, 2019

Alcort Super Sailfish ZSA ZSA 07 Feb 19 Sea Trials

07 Feb 19:

Sea Trials for ZSA ZSA, 100 percent success! Full report this weekend.




Wilcox and Crittenden Boat Hook, Chocks and Bow Handle

07 Feb 19

Rounded up some more Wilcox and Crittenden hardware for use on our boats. We will make another padook with the galvanized boat hook, it feels like the perfect weight. We love the crusty patina.




The tabbed bow handles fit on the wooden Alcort Standard Sailfish, Super Sailfish and Sunfish. We are losing track of how many boats we have, but I think this is a spare :)




I'm not sure what I was more excited about, the box or the chocks inside. The chocks will go on our little Sorg Runabout WILLOW.





1970s Sailboat Built from Plans...What Is It? PETREL!

08 Dec 18:

The Skipper's family found plans in a magazine for a 16 foot sailboat in the early 1970s, they built her over the period of several years and then sailed her for many. Centerboard with a pop up rudder, small cuddy. We think the advertisement to order the plans from CT or Boston was in the back of a boating magazine or Popular Mechanics. No one can remember the name of the design. Does anyone recognize it? If so, please add a comment below.





11 Dec 18:

Builder Notes from Capn Jack
-105 sf main, 49 sf jib.
-Steel centerboard was made from stainless cut from a tank at the junkyard on Leopard. The shape was "enhanced" by a hacksaw, "modified" to suit the purpose. He has no idea how much it weighed, but it twas heavy.
-Mast was solid spruce, "Hell for stout" as Mr. Hazelwood would say.
-Rectangular spruce boom.
-Spruce frames, sawn.
-Spruce splashguard.
-Deck and Hull Douglas Fir plywood, exterior grade.
-She sailed around Corpus Christi, TX and made a trip to Wyanet, IL.

05 Feb 19:

We found it, on youtube of all places. She is a Petrel. A gent in Estonia is building a boat and I came across his video, and thought "that's it!"



He had a link to the plans, re-shared by Boat Builder in 1978, Craft Print Project #106. At first I thought that was too late, the Skipper's family's boat was built early 70s, but further research revealed that the plans were first published in Science and Mechanics magazine or Boat Builder's Annual at an earlier date, Craft Print #106.

"Science and Mechanics magazine published a number of Craft Print designs for boats by the naval architect, William D. Jackson. Plans were published in the Science & Mechanics magazine, Boatcraft, and Boat Builder's Handbook. Reprints from past issues were available as were full-size pattern sets. Many of the designs catered to the outboard boat racer, with design suitable for Class A, B, C or stock outboard marathon racing." (FiberGlassics)








A group in Canada made this nice video about Mr. Jackson, aka "Dadey".
"William D. Jackson made significant contributions to the home boat building industry, yet very little was known about the man himself....until now. Over two years in the making, this is the official film biography on the famous, yet very private person who made the Seaflea a household name. With never-seen-before photographs from his estate and with assistance from his daughter(Joyce Jackson Fletcher), Muskoka Seaflea is proud to present this 24 minute film that takes you behind the scenes of this prolific naval architect." (Muskoka SeaFlea)



05 Feb 19:

Pictures of a completed Petrel appeared in the April 1963 issue of Science and Mechanics, reference a picture found in a genealogy website. So the plans came out before April 1963, the hunt is on to find the original article, it could be in Science and Mechanics, Boatcraft or Boat Builders Handbook. Most likely Science and Mechanics since the picture looks to be posted in a Letters to the Editor section. We know it was republished in Boat Building

(Image Credit: Sarazin Family).

(Image Credit A. M. Sarazin).

06 Feb 18:

Found an older version of the plans, published 1944 in Boat Builder's Annual by Science and Mechanics Publications. The Annual had plans for 15 boats and the article was a little more detailed than the 1978 reprint. (Boat Builder's Annual, 1944. Science and Mechanics Publications)




More pages to follow.

References:
Science and Mechanics Craft Print List on FiberGlassics

Kristo Martin Petrel Build youtube
-Sailboat building timelapse, 16footer, part 1
-Sailboat building timelapse, 16footer, part 2
-Sailboat building timelapse, 16footer, part 3

Svenson's Free Boat Plans