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Lieutenant Commander)
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Commodore)
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Admiral)
Liked Three Springers at the SSMBC meet. 5 days ago
United States
Recent Posts
💬 Re: Aerokits Sea Commander. Strange Handling ?
24 hours ago by 🇺🇸 Chum444 (
Captain)
Captain)✧ 13 Views · 1 Like
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Re latest post by Chris F. When you slow down in a real boat the bow is pushed downward by the remnants of the boat’s wake. Happens when the wake, which is now faster than the hull’s speed, catches up to the stern. The flatter the hull’s deadrise is in the stern the more the bow will be forced downward. Analogous to slow running in a following sea.
Same thing happens with model boats.
Same thing happens with model boats.
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Colin H
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💬 Re: Aerokits Sea Commander. Strange Handling ?
1 day ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 16 Views · 1 Like
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From your post after the prop shipping cost post it’s beginning to sound like there might be a problem with the hull design. Hopefully not.
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hermank
💬 Re: Aerokits Sea Commander. Strange Handling ?
2 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 26 Views · 2 Likes
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You might find this article & it’s reference to other similar articles useful.
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hermank
zooma
📝 Some progress
6 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 9 Views · 3 Likes
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Well, it’s been tack glue, marking fit pieces to fit, remove, cut, re-tack glue to check fit, & repeat! For next scratch build I need to improve cutting accuracy for bulkheads, gunnel support, etc. Same for applying epoxy sealer in hull interior. Kind of slopped epoxy blobs onto gluing surfaces. *#*”#!
Photos
Sprayed cockpit sides with ammonia based
window cleaner, clamped to gunnel, & left to sit
overnight. Will reduce tensile stress on joints
when finally glued in place.
Motor box fabricated. Servo will be hidden by
removable aft seat.
Owner is anxious for a boat ride but yard
schedule indicates that is in the distance.
Photos
Sprayed cockpit sides with ammonia based
window cleaner, clamped to gunnel, & left to sit
overnight. Will reduce tensile stress on joints
when finally glued in place.
Motor box fabricated. Servo will be hidden by
removable aft seat.
Owner is anxious for a boat ride but yard
schedule indicates that is in the distance.
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LeeA
thadlietz
hermank
📝 Falkirk Wheel
15 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 20 Views · 2 Likes
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Very informative. Thanks to all who provided information & videos.
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Steves-s
hermank
📝 Falkirk Wheel
16 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 43 Views · 2 Likes
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What is the Falkirk Wheel?
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hermank
RodC
📝 Historic ships on the Baltic coast.
18 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 30 Views · 2 Likes
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Thank you for posting these photos Wolle. Provides an encyclopedia of details for anyone building or contemplating building a similar vessel.
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hermank
Wolle
📝 Windscreen
22 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 23 Views · 7 Likes · 2 Comments
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Finally can see the light at the end of the tunnel! So far, excluding the windows, the windscreen required 34 pieces to construct. Maybe one more sanding with 500 grit paper & one more coat of gloss clear. Then the windows & figuring out how to attach the screen to the hull in a way that is removable with the trunk cabin.
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thadlietz
hermank
Ronald
EdW
AlessandroSPQR
Commodore-H
jumpugly
💬 Re: Aerokits Sea Commander. Strange Handling ?
27 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 111 Views · 3 Likes
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Another thought(like noses everyone has one) when you slow down just before the first wave the boat’s stern wake might be lifting the stern & pushing the bow down. Try slowing down a bit earlier before taking on head waves.
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hermank
zooma
jumpugly
💬 Re: Aerokits Sea Commander. Strange Handling ?
27 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 111 Views · 5 Likes
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Only as a trial you might try taping a bit more ballast weight after in the stern. It looks to me from the bow wave that she’s heavy in the bow. But that’s merely my thinking. Of course you should try it at speed with the temp ballast to be certain she still planes properly.
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hermank
IanL1
jumpugly
mjbb1951
EdW
💬 Re: Aerokits Sea Commander. Strange Handling ?
27 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 112 Views · 3 Likes
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Some things to consider.
- At rest in calm water how does the boat sit?
Does it appear to be bow down even slightly?
- Are all of your components in the bilge tightly
secured, particularly the battery.
Might be a ballast issue or an issue of weight shifting in the bilge when underway. After hitting the first wave it sounds like the boat starts to porpoise.is the CG too far forward?
One last thought after absorbing one or two waves on the bow is there water in the bilge?
- At rest in calm water how does the boat sit?
Does it appear to be bow down even slightly?
- Are all of your components in the bilge tightly
secured, particularly the battery.
Might be a ballast issue or an issue of weight shifting in the bilge when underway. After hitting the first wave it sounds like the boat starts to porpoise.is the CG too far forward?
One last thought after absorbing one or two waves on the bow is there water in the bilge?
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hermank
jumpugly
thadlietz
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📝 Windscreen
28 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 29 Views · 5 Likes
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So far a week’s work on the windscreen. Fiddly work with 18 individual pieces & more to come. Gaining on it!
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hermank
Commodore-H
EdW
jumpugly
thadlietz
💬 Re: The Real Deal
30 days ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 44 Views · 3 Likes
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Superb job on the sportfish Jump!
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AlessandroSPQR
hermank
jumpugly
💬 Re: Windscreen fabrication
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 32 Views · 2 Likes
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Phil,
Fortunately the pieces I am using are small in cross section so they can be bent (carefully) after a quick soaking in ammonia based window cleaner. The two side pieces are the main challenge.
The next issue is how to attach it to the hull so it is has some structural integrity to prevent it from being easily knocked off. The glazing will provide some rigidity but not to the degree that satisfies me. Haven’t thought this one through as yet.
Fortunately the pieces I am using are small in cross section so they can be bent (carefully) after a quick soaking in ammonia based window cleaner. The two side pieces are the main challenge.
The next issue is how to attach it to the hull so it is has some structural integrity to prevent it from being easily knocked off. The glazing will provide some rigidity but not to the degree that satisfies me. Haven’t thought this one through as yet.
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hermank
AlessandroSPQR
📝 Windscreen fabrication
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 37 Views · 7 Likes · 2 Comments
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The next gating item in my modified build sequence is the windscreen. Its exact size, shape, & location determines how I fabricate the trunk cabin roof. Specifically how much of it can be made removable to access the motor, ESC, the drive coupling. The more course mahogany grain renders it much less flexible than basswood for bending.
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hermank
Commodore-H
jumpugly
ChrisF
PhilH
thadlietz
AlessandroSPQR
📝 Kort nozzle/ prop alignment
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 23 Views · 1 Like
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Having recently poked the stick in the cage about Kort nozzles. I want to ask, how those who use them & maybe someone who has converted to using Korts a question. What techniques do you use to align the drive shaft, prop, & nozzle?
I’ve used a technique as shown in the photo. The metal disc diameter same as Kort internal diameter (where the prop will be located in nozzle) with the shaft in the center of the disc. Works pretty well but I find I still end up eye balling the final alignment. So, I have to say my various methods are not all that great.
How are you other folks accomplishing alignment given there is so little clearance between the prop & Kort?
I’ve used a technique as shown in the photo. The metal disc diameter same as Kort internal diameter (where the prop will be located in nozzle) with the shaft in the center of the disc. Works pretty well but I find I still end up eye balling the final alignment. So, I have to say my various methods are not all that great.
How are you other folks accomplishing alignment given there is so little clearance between the prop & Kort?
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hermank
💬 Re: Chris Craft 63' Connie
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 14 Views · 1 Like
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Superb!
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hermank
💬 Re: Another Springer tug!!
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 65 Views · 3 Likes
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Sounds like this is going to be a real tank Cash! Very strong indeed! I’m a devotee to single steerable Korts on tugs so I applaud your choice for propulsion. What is your alignment technique for the prop inside the Kort. I generally use a shaft centered in a plate whose diameter matches the Kort’s. I find even then I have to “eyeball” the final position.
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RodC
Cashrc
hermank
💬 Re: The Real Deal
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 52 Views · 1 Like
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Whoa! What’s that sportfisherman in the background?
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hermank
📝 No maiden voyage as yet.
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 41 Views · 5 Likes
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Since I don’t want to get kicked off the property that has my test pond I have to wait until the residents have mostly finished their use of the beach. That has gotten me out of sync with my usual build sequence.
I’ve been working toward cockpit templates for future construction. Photo shows a bit of how the finished cockpit will look. Cutting card stock much easier than wood or styrene. One thing becomes apparent; the engine cover box mock-up is oversized.
I’ve been working toward cockpit templates for future construction. Photo shows a bit of how the finished cockpit will look. Cutting card stock much easier than wood or styrene. One thing becomes apparent; the engine cover box mock-up is oversized.
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EdW
thadlietz
AlessandroSPQR
hermank
jumpugly
💬 Re: Powered Hopper Barge
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 39 Views · 4 Likes
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I was wondering if you had made any progress. Looks very good & is a very interesting subject. I always appreciate someone making the effort to do something out of the ordinary.
I’ll be watching for your Kort nozzle test results.👍👍
I’ll be watching for your Kort nozzle test results.👍👍
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SimpleSailor
RNinMunich
hermank
AlessandroSPQR
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💬 Re: Primer?
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 63 Views · 3 Likes
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Unfortunately I think you will find that paint doesn’t hide defects; it magnifies them particularly when you apply the gloss coat.
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ChrisF
hermank
Len1
💬 Re: Ballast and leak check...
1 month ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 71 Views · 5 Likes
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Jump, I had a leak I absolutely could not find while building THUNDER. Somewhat in desperation I decided to fill the hull with water so I could see where it ran out! Worked like a charm.
Hmmm. Read the latest thread knucklehead! Sorry Jump I posted this before I saw you had found the leak. My Bad!
Hmmm. Read the latest thread knucklehead! Sorry Jump I posted this before I saw you had found the leak. My Bad!
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Len1
hermank
EdW
Cashrc
jumpugly
💬 Re: Steering ahead
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 45 Views · 1 Like
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Thanks Ronald. That is good advice. If weeds become a constant problem I’ll have to go to that.
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hermank
📝 Steering ahead
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 48 Views · 5 Likes · 2 Comments
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Rudder post tack glued in place. Needs gussets or other strength members.
Rudder & skeg in place. Some tight clearances so weedy venues may be problematical.🤞
Rudder & skeg in place. Some tight clearances so weedy venues may be problematical.🤞
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AlessandroSPQR
thadlietz
EdW
hermank
jumpugly
📝 Spam
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 35 Views · 1 Like
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Thanks Stephen. What is the best way to report spam. This last one was arrogantly egregious.
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Len1
💬 Re: Test Sailing of RMAS Ixworth After A Long Refit 06 August 2025
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 37 Views · 2 Likes
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Was this a kit or scratch built. I’m certain everyone would like to know more of the details.
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Len1
jumpugly
💬 Re: Test Sailing of RMAS Ixworth After A Long Refit 06 August 2025
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 45 Views · 4 Likes
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Now the vid works on my iPad. Looks good in the water.
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Len1
AlessandroSPQR
SouthportPat
hermank
💬 Re: Test Sailing of RMAS Ixworth After A Long Refit 06 August 2025
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 45 Views · 3 Likes
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Video not working for me but the two photos I
can see look intriguing. Any pics during the build process?
can see look intriguing. Any pics during the build process?
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Len1
SouthportPat
hermank
📝 Leak testing & ballasting
2 months ago by 🇺🇸 Chum444 ( Captain)
Captain)✧ 52 Views · 10 Likes · 1 Comment
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Well, the first time in the water not exactly a success. A serious leak immediately appeared at the point where the keel penetrates the hull. So, let the hull dry & added quite a bit more epoxy to where I thought I had already sealed.
Operation was a success; no leaks after the weighted hull sat in the water for almost two hours.
Then on to placement of ballast. Didn’t do a weight calculation just added lead fishing weights until things looked correct. 28 oz looks like it will suffice.
The test supervisor, who flew in from Baltimore nodded his approval.
Operation was a success; no leaks after the weighted hull sat in the water for almost two hours.
Then on to placement of ballast. Didn’t do a weight calculation just added lead fishing weights until things looked correct. 28 oz looks like it will suffice.
The test supervisor, who flew in from Baltimore nodded his approval.
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peterd
Len1
EdW
RNinMunich
thadlietz
PhilH
AlessandroSPQR
ChrisF
jumpugly
hermank
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