New project; THUNDER an inland tug
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Inland tug; Aligning drive components.
1st photo- 2” diameter steerable Kort nozzle.
2nd photo - Aligning prop shaft as parallel as possible to keel. Probably not that important to minimize prop walk on this build since it is not fast running.
3rd photo - Where I think motor/gearbox will be placed.
Oooops!
A challenge pops up
Initial electrical setup worked. But then it was obvious that rudder operation was being lost. It finally stopped working completely. Let the trouble shooting begin.
Since I was experimenting with a high torque 270 degree servo my first thought was the problem was servo oriented. Switched to a conventional version which still didn’t work.
Hmmm. Maybe the higher voltage requirement for the high torque servo drained the TX battery. Charged the Taranis, plugged in the HT servo, no good. Same for conventional servo.
Okay, since I had tweaked the Taranis program for this particular build I deleted the build program & copied a program I knew worked perfectly for another boat. Same drill with the HT & conventional servo but still no operation.👎
Maybe an RX malfunction. Changed it & tried conventional servo. No luck. ( At this point not worth testing HT version since the conventional servo failed to respond).
Okay, the h___ with it; think it over for awhile!
Next day, a few more variations of combinations of above but only changing one thing at a time. Still nothing!
An AHA,💡, moment. The esc must be the problem even though the motor always spun flawlessly. Changed the esc, tested with a conventional servo & success!👍 Switched to the HT servo & it too worked.
All part of the fun of building.
Photo obviously not the final running gear placement. Motor placement is good.
Bilge work
The deck
1st photo: A template from stiff cardboard. Difficult to bend to install & terrible fit A 1/16” thick basswood sheet would probably be impossible.
2nd photo: A thin cardboard template that could slide into place between the aft bulwarks to form the deck aft of the wheel house.
Hmmm! Tried sliding aft portion of stiff template into place. Seems to be just enough give in the fwd bulwarks that a single piece deck is not out of the question.🤞
Comments, suggestions welcomed.
Leak prevention
Thanks in advance.
Rudder linkage
The servo location as installed would make a push/pull system problematical. I had to offset the position due to lack of freeboard aft. If necessary I could relocate it to the centerline. We’ll see.
Rudder push rod
The aha! moment occurred
The photo shows where the deck is parted. It also has the access to running machinery cut out in the shape of the house base. Those beams will eventually include the coaming for the removable house. Template still needs to be tweaked for the final shape of the 1/16”” thick deck.
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