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  1. I got out Monday for a first flight for my digital flight control system. Overall it was a big success! The one thing I cut corners on to get out there was fully waterproofing the servo. I felt that the likelihood of a turtle capsize was low (my last one was months ago). Of course, what did I do after 90 minutes out there? Turtled the boat and killed the servo--HAHA! But still a great day with lots of learning and successes: 1) Being able to "arm" the system at the press of a button was a major convenience. When the system is "not armed" it is as if the wand is all the way up and
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  2. Hey team, just shot a quick video on my solution to adjusting altitude and some of the other prototype variables. First flight is TODAY!
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  3. Electronics module and servo now fully mounted on spirit and actuating the flap with torque to spare! First flight in mid June is on track! Last steps are some linkage adjustments and test tank time (in my hot tub)!
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  4. Another update from the land of digital flight control systems! Integration I now have all sensors talking to the Grand Central board and the algorithms (PID loop, ultrasonic sensor filter and smoothing, etc.) performing as designed. The wireless remote is also working and allowing the user to adjust PID Parameters, Altitude Setpoint, and Smoothing coefficients. The LCD is putting out status messages and feedback when the user is changing parameters. I am also collecting all the data from accelerometers, gyros, ultrasonic sensor, battery cell voltages, etc. and storing it to an SD ca
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  5. Time for another blog installment of the Digital Flight Control System for my UFO. I have been busy at work on the project and making good progress toward a first flight in early 2020! Also attached is an updated block diagram with details on various subjects below: Data Logging: In my last blog post I mentioned that we needed some sort of data logging to really get into the meat of how well our control and filter algorithms are working. Post processing data after getting off the water will also allow us to see if there is data being generated by sensors that could improve
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  6. Good news! I just received PCBs back from the fab house and all parts fit. This simply means I know how to be very detail-oriented with a pair of calipers and my CAD software. I mentioned in a previous post that mounting all of the modules to a single PCB was easier and more electrically sound than using a "base plate and flying wire" approach. The PCBs are back and everything fits mechanically. As you can see from the photo, I have added 0805 inline footprints on every trace. The idea here is that if the trace is correct, I install a zero-ohm resistor and carry on. If a trace ends
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  7. Ok team, here goes my first blog post. My goal here is to build a Digital Flight Control System (DFCS) for my UFO using a sonar range sensor as opposed to the wand. The design needs to completely mimic the performance of the wand system currently in the boat. The system needs to be fully removable to allow for One Design Racing if desired. A few design guidelines... Improvements to current control system: 1) Sensing wave terrain out ahead of the boat 2) Not engaging the mainfoil flap until the boatspeed hits 7 knots to reduce drag while floating 3) Toggle settings
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  8. So, Saturday marked the final day of the Western Circuit, steering the Rekerring Dream, Ker32. Pretty decent showing for inaugural regatta - 5/2/3/3/2/3 in a fleet of 9 well sailed boats. The Esses were harder to beat on the first (lighter), weekend but we had the measure of them last Sat. Bill Bremner's Foxy was on fine form- scoring a string of firsts with Sarab Singh's Windsikher only getting Bill once as far as I remember. It was nice to take a few races off Windsikher actually, since that boat (S40IRC) is moded for the light stuff and has 8ft more hull than us. Our starting was re
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  9. Source: 65- by 32-foot catamaran 3200sqft of living space
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  10. I’m learning how to sail, taking lessons from a local yacht club on a river. Class meets three evenings a week, for four weeks. When I got there, I had trouble finding where the lessons were being held. Two other people were also wandering around. We found a woman by the pool who told us where to go. The class (14 students in all) was practicing tying knots. I was given a length of rope and shown how to tie a bowline and a figure-eight. We were told to take the rope home to practice with. There are four instructors, most of whom are volunteers. Instruction is somewhat informal.
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  11. I'm a sailor at 19 years. i have been sailing for 10 years. before I started sailing i was playing football. when i was playing football there was an sailor in my class, that I and the other football-players was bullying. but a day when i said to him, that it not was hard to sail and it was really like shit to be a sailor, He sayed; "what do you know about sailing, and I was blank. so I started sailing and then it was fun and I keepped on sailing. AND I LOVE IT!!, but now i'm beeing bullyied. Bullying is the use of force or coercion to abuse or intimidate others. The behavior can be habit
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  12. http://www.merriam-w...ictionary/ennui Somtimes I thick this runnes ranpante amoungue poesteres heare on SA. Mabey we cane worke tegether and minimixe ist affecte. Exspecialley withe the Hollidays appon us, wich is a sorse of troubelle foure manny. Heare our somtippes I fonde, notte siure they worke butte ist worth a try. what do we halve to loose??? Shaire any tippes you halve. Lettes alle try to be happiere! 1. Start each day with expectation. If there's any big truth about life, it's that it usually lives up to (or down to) your expectations. Therefore, when you rise from
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