Model Recovered from Davey Jones Locker
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Model Recovered from Davey Jones Locker
To prevent runaways it is possible to fit a servo fail safe. This will give a predetermined pulse output to a servo or motor control in the event of a loss of radio signal.
I've seen these advertised between $20 ~ $30
Google "Servo fail safe"
It's possible to build one for about $5, 2 integrated circuits, 3 diodes, 3 resistors, 3 capacitors and one preset.
I'll look for the schematic and post it when I find it. If I can't find the schematic I'll trace out a schematic from the unit.
I built one in the 1970s to kill the engine on a glow plug powered model.
Back in the 70's my fast electric used a servo and micro switches to control the motor (power FETs were not available back then). The fail safe would move the servo to the stop position.
I've seen these advertised between $20 ~ $30
Google "Servo fail safe"
It's possible to build one for about $5, 2 integrated circuits, 3 diodes, 3 resistors, 3 capacitors and one preset.
I'll look for the schematic and post it when I find it. If I can't find the schematic I'll trace out a schematic from the unit.
I built one in the 1970s to kill the engine on a glow plug powered model.
Back in the 70's my fast electric used a servo and micro switches to control the motor (power FETs were not available back then). The fail safe would move the servo to the stop position.
Liked by RodC and SimpleSailor and
Model Recovered from Davey Jones Locker
What a fabulous story. Will you totally restore the boat or only part of it?
Liked by chugalone100
Model Recovered from Davey Jones Locker
Ronald,
It’s always great to hear a story with a good ending. I’m glad you were able to bring her back to life after all that.
Now she has an even better role—what a perfect centerpiece for your grandson’s bedroom. I’m sure it’s something he’s really proud of, especially sitting there alongside his Lego builds.
😎
It’s always great to hear a story with a good ending. I’m glad you were able to bring her back to life after all that.
Now she has an even better role—what a perfect centerpiece for your grandson’s bedroom. I’m sure it’s something he’s really proud of, especially sitting there alongside his Lego builds.
😎
Liked by Hsailer and AlessandroSPQR
Model Recovered from Davey Jones Locker
Well I hope it never happens again. It’s been said “live and learn”, and I did just on that day. I didn’t know the wheelhouse cover had drifted off as the hull sank. A man found it on the far side of the pond a couple days later and returned it to me.
After stripping the guts from the hull and resting them in containers of Rice, most of the gear was restored after a couple months.
The tugboat did sail again but it was retired from service to be a lamp in my grandson’s bedroom on a shelf along with his Lego prizes.
After stripping the guts from the hull and resting them in containers of Rice, most of the gear was restored after a couple months.
The tugboat did sail again but it was retired from service to be a lamp in my grandson’s bedroom on a shelf along with his Lego prizes.
Liked by Chum444 and AlessandroSPQR and
Model Recovered from Davey Jones Locker
Glad that you got your boat back.
The motor controllers that I have designed and built go to motor stop in the event of loss of transmitter signal. The motor control described is an accident waiting to happen. If the boat went out of range it would go to full astern.
Newer radios can set default positions for each channel for loss of signal.
I usually use builders spray foam to fill space so that the model will stay afloat even if full of water.
The motor controllers that I have designed and built go to motor stop in the event of loss of transmitter signal. The motor control described is an accident waiting to happen. If the boat went out of range it would go to full astern.
Newer radios can set default positions for each channel for loss of signal.
I usually use builders spray foam to fill space so that the model will stay afloat even if full of water.
Liked by chugalone100 and Hsailer and
Model Recovered from Davey Jones Locker
This incident was 10 years ago, but maybe you didn’t read that correctly.
I quickly learned the rules and have had no further issues with a boat capsizing.
That tugboat is now a lamp in my grandson Michael’s bedroom. He helped me to build and paint it, back then too when he was 5 years old. He is turning 16 on Friday this week!
I quickly learned the rules and have had no further issues with a boat capsizing.
That tugboat is now a lamp in my grandson Michael’s bedroom. He helped me to build and paint it, back then too when he was 5 years old. He is turning 16 on Friday this week!
Model Recovered from Davey Jones Locker
Incredible weathering! The ghouls are amazing😁😁.
Very glad that you recovered her and yes, your sequencing in correct. If in doubt, do not turn off your x-mitter until your boat is out of the water, safely cradled,and shut down.
Very glad that you recovered her and yes, your sequencing in correct. If in doubt, do not turn off your x-mitter until your boat is out of the water, safely cradled,and shut down.
Model Recovered from Davey Jones Locker
Nooooooooooo!!!!!!! But, a very worthy recovery all the same Ronald!
It's like the old saying from my flying days...
"Do you want to see a grown man cry?"
"C'mon down to the local flying field."
😜😂
It's like the old saying from my flying days...
"Do you want to see a grown man cry?"
"C'mon down to the local flying field."
😜😂
Liked by hermank and AlessandroSPQR and
Model Recovered from Davey Jones Locker
Ron, I hav at least 5 vessels on the bottom of the lagoon at Bluffers. I joined MMM 4yr ago, Spring, and haven't lost a boat since then. The cluster of guys that I sail with are very talented when it comes to rescues.
Fortunately 1:1 boaters, kayakers, canoeists, paddle-boaders, outboarders, etc hav all come to my rescue not to mention fellow MMM members very adept at using those aluminum "J-poles" on the lifesaving stands.
Yes, hav witnessed that several times where relatively-inexperienced modellers will for example flip one of the servo-reverse switches on their TX and totally lose control over their vessel. Or snag their throttle stick with the lanyard around their neck and send the model crashing into a wall, corner of a pool, or other vessel
Fortunately 1:1 boaters, kayakers, canoeists, paddle-boaders, outboarders, etc hav all come to my rescue not to mention fellow MMM members very adept at using those aluminum "J-poles" on the lifesaving stands.
Yes, hav witnessed that several times where relatively-inexperienced modellers will for example flip one of the servo-reverse switches on their TX and totally lose control over their vessel. Or snag their throttle stick with the lanyard around their neck and send the model crashing into a wall, corner of a pool, or other vessel
VA3ROD
Liked by pressonreguardless and AlessandroSPQR and
Model Recovered from Davey Jones Locker
10 years ago, my first RC tugboat was retrieved from the bottom of a local pond after more than week of being submerged.
It went under the waves only because, as a new person to this hobby, just before taking the model out of the water, I switched off the transmitter! Off she sailed in reverse at full speed sending water over the stern and swamping the hull. In no time, it was descending to the bottom of the pond.
It took me and a friendly neighbour who had a small 2 person boat, a fish finder and a bit of luck to locate it. Marking the location, I used a weighted big triple hook tied to a line and was able to snag it.
Moral of the story, remove your model boat from the water before turning off the transmitter. Better yet follow this sequence: 1) Power/On transmitter 2) Power/On boat
Now go sail.
3) Power/Off boat, 4) Power/Off transmitter.
It went under the waves only because, as a new person to this hobby, just before taking the model out of the water, I switched off the transmitter! Off she sailed in reverse at full speed sending water over the stern and swamping the hull. In no time, it was descending to the bottom of the pond.
It took me and a friendly neighbour who had a small 2 person boat, a fish finder and a bit of luck to locate it. Marking the location, I used a weighted big triple hook tied to a line and was able to snag it.
Moral of the story, remove your model boat from the water before turning off the transmitter. Better yet follow this sequence: 1) Power/On transmitter 2) Power/On boat
Now go sail.
3) Power/Off boat, 4) Power/Off transmitter.
Liked by Mike Stoney and Hsailer and
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