Greg Davis
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About Greg Davis
- Currently Viewing Topic: Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
- Birthday 05/29/1959
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Getting some rigging in place now:
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I need to keep reminding myself that his contraptions were almost always in flux and that he seemed to like having pictures taken with his work no matter the stage of construction. Combine this with him taking parts from one project to put on another and then possibly modifing after in place makes using the photographic evidence so much fun!
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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What is the conical structure behind the pilot seat on the No20? Could that be fuel and the double cone on top just coolant? I like the radiator piping along the wing panels!
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Here's a picture that came from an October 19, 1907 Scientific American article where the intake spider is not in place, but you can see the carburetors. I guess one would need to be reversed to accept fuel from the tank funnel that is between the two carburetors on Santos-Dumont's No 18 set-up.
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AON reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Keith Black reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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iMustBeCrazy reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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You are right - space is tight, but I did include use couple of pieces of aluminum under the spiders to represent the carburetors!
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Keith Black reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Here's what the model looks like with the propeller unit in place: Return piping for the coolant to make it back from the radiators was also added today. I'm waiting on some resin spark plug boots to see if they will make the ignition harness wiring look better than what I could do on my 14bis model. Then some rigging...
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Thanks for sharing - this looks like a later model than was used by Santos-Dumont on the 14bis. Those copper water jackets must have been a joy to produce! Also, quite a different air intake than the 'spider' version!
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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yvesvidal reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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yvesvidal reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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AON reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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More engine work today - added the coolant intake manifolds and the lower coolant pump together with the connections between the two. I'm using one of the castings from the Model Airways engine kit for the magneto and associated gearing. I've drilled 16 holes into the magneto to accept the ignition wires. I also added the lower half-round connection between the radiators. Besides installing the ignition harness and adding some piping from the lower radiator connection going back and up to the engine, I think this will be the end of the propulsion system (short of installing the propeller). I think I'm now at the limit of what I can reasonably do on this part of the model. Some rigging will be coming soon to wrap the project up for now - at least until additional relevant information on the Santos-Dumont No18 Hydroplane surfaces! P.S. Yesterday's requested side project:
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All the exhaust pipes are in place. The next big project will be getting coolant intake piping / etc. in place. As a small diversion I have started building a case for the model. I've cut this trapezoidal piece of wood to serve as a base board / raise the model up a bit. For the final presentation, I am looking for something remininsent of the picture of the No 18 that was taken in Santos-Dumont's workshop:
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Thanks for the encouragement! Definitely going to see this through - the finish is in sight. Half of the remaining exhaust pipes formed and in place:
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Now the coolant can make it into the radiators! The front half of exhaust pipes are made and attached as well. The remaining eight exhaust pipes have a slightly different shape; while the front eight point down, the rear eight have a bend and point aft. They will be a little harder to form. In retrospect, I should have attached the exhaust pipes earlier as now there is a reduced amount of work space and it seems my depth perception has been reduced as well! By the way, I fell back on soldering a short piece of brass tubing to a piece of soft brass wire to form the basis for each exhaust pipe. The wire was bent and cut to shape and black shrink tube was put over the wire to finish.
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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This is really stretching my skill set, and I am learning a lot - so that is good. At the same time, the project is reinforcing my like of ship models from about 1750 to 1850!
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The radiators are now permanently connected to the model as are the copper air / fuel intakes. Next up will be the exhaust pipes. Having them in place will make fitting the front radiator piping easier and is almost necessary before adding the coolant intake manifolds to the exterior of the cylinders.
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The engine block is 3.5" long - nearly 4" if you go to the front of the spinner.
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Greg Davis reacted to a post in a topic:
Santos Dumont No. 18 Hydroplane 1907 by Greg Davis - Scale 1:16
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Last bit of work for the day - the connections from the coolant pipes to the tank. Glad to have these two pieces in place. I had worried about being able to make and install the returns so that they looked similar to those on the boat. I also was worried about drilling holes into the tank and the upper level of the coolant return since they were already in place. Same fear as cutting through planking for gunports!
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