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Bronco Type XXIII build

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Re: Bronco Type XXIII build

Postby Bigdave » Wed Jul 24, 2013 4:08 pm

One more shot with a UNI 2.5 sitting in front for size.
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Re: Bronco Type XXIII build

Postby salmon » Wed Jul 24, 2013 4:12 pm

Very cool! It is your boat, paint it any way you want. Look forward to the water footage - these are exciting times with kits like this.
Peace,
Tom
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Re: Bronco Type XXIII build

Postby JWLaRue » Wed Jul 24, 2013 7:33 pm

Love to color scheme! :D

-Jeff
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Re: Bronco Type XXIII build

Postby redboat219 » Thu Jul 25, 2013 1:50 am

Merriman's having trouble with his Type 23 going into an uncontrolled dive during submerged running. Any problem with yours?
"Make it simple, make it strong-and make it work!" - Mikhail Mil
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Re: Bronco Type XXIII build

Postby Bigdave » Thu Jul 25, 2013 8:15 am

Not much stick time yet.
But I guess I will find out soon enough. BD.
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Re: Bronco Type XXIII build

Postby Thor » Thu Jul 25, 2013 1:24 pm

Mine is not painted yet, and I'm still trimming it out for submerged operations but I've not had any issues with its behavior other than having to tweak the rudder throw to improve the turning radius. It behaves very similarly to my old 32nd Parallel Type XXIII.
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Re: Bronco Type XXIII build

Postby sam reichart » Thu Jul 25, 2013 2:43 pm

Thor wrote:Mine is not painted yet, and I'm still trimming it out for submerged operations but I've not had any issues with its behavior other than having to tweak the rudder throw to improve the turning radius. It behaves very similarly to my old 32nd Parallel Type XXIII.


Matt- what are you using for your ballast system?
what were once vices are now habits
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Re: Bronco Type XXIII build

Postby Bigdave » Thu Jul 25, 2013 2:59 pm

You know Matt I noticed the same thing on my limited run time about turning radius. :roll:
I figured with the rudder behind the prop it would turn better but it did not seem to.
I just figured it was me and just lack of stick time.
I did end up with decent throw too using basically the same system the real one used.
Push pull rods.
But be that as it may the 23 is still one 8) 8) looking sub. :mrgreen: BD.
David Welch
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Re: Bronco Type XXIII build

Postby JWLaRue » Thu Jul 25, 2013 3:01 pm

redboat219 wrote:Merriman's having trouble with his Type 23 going into an uncontrolled dive during submerged running. Any problem with yours?

Very odd and interesting. The larger version (1/25th scale) has a tendency to slightly nose up when running submerged....

I wonder if there is some small hull shape differences between the two. Also a comparison of where the c.g.'s and c.b.'s are may be useful.

-Jeff
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Re: Bronco Type XXIII build

Postby Thor » Thu Jul 25, 2013 3:54 pm

Sam,

I'm using a simple home brew centrifugal pump ballast system(flood down-pump out) in a 2.5" cylinder. I am using one of SubTech's old propel backup failsafe systems to keep me out of trouble. Very inexpensive to build and seems to work flawlessly...so far...


Dave,

I was surprised by the poor turning radius, but with some additional throw and a pick up in forward speed it is acceptable for now. I really don't want to have to resort to a non-scale rudder, but you are right, it is one slick looking sub! I like that red anti-fouling.....it really has me wanting to go that route.

Jeff,

Other than the turning radius I have not witnessed any bad behavior at all, but I am using an old Subtech APC-3 to keep her level. She runs at scope depth hands off at 1/4 throttle. The trim does change at higher speeds and it does take a bit more forward pressure on the stick to keep her down where she is supposed to be. I guess that might be that bow up tendency you mentioned?

Anyway, a very nice little kit that makes up a pretty little U-boat in a super handy size!

Matt
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Re: Bronco Type XXIII build

Postby Thor » Thu Jul 25, 2013 5:02 pm

If you are looking for a great source to purchase this kit at a most reasonable price take a look at the link below. I purchased mine from these guys earlier this year. They are located in Kansas City and they are a great to deal with.

Free shipping is included with an $81.00 price tag.

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 1245249740
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Re: Bronco Type XXIII build

Postby JWLaRue » Thu Jul 25, 2013 5:27 pm

Matt,

...yup, sounds like your behaves like my OTW version. Pretty much hands off at scope depth and as the speed increases, a bit more down angle on the bow planes is called for.

-Jeff
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Re: Bronco Type XXIII build

Postby wlambing » Thu Jul 25, 2013 7:00 pm

Guys,

Tony G's. OTW XXIII would drop like a rock, bow first, on diving for a good while before he got her dead nuts trimmed out. He still had to develop "the touch" after trimming to get her to behave. The drag from the sail is the cause of the tendency to go bow upward as you increase speed a bit. I'm told that the Marlin has a similar issue. The XXIII may have it more so as that sail is not a streamlined as Marlin's and presents much more "blunt" surface area to the water flow. If you compare the leading edges of the two sails, you can see how the XXIII could develop this drag.

Take care,

B^)
"If you ignore the problem long enough, it will go away. Even flooding stops eventually!"
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Re: Bronco Type XXIII build

Postby Bigdave » Thu Jul 25, 2013 7:49 pm

You are so smucken fart Bill.
That has got to be it. 8)
Who Knew! :mrgreen: :mrgreen:

And that is one big sail too. :shock:
One thing I like about the 23, the Skipjack, and the Walrus class.
Big sails are just too cool. BD.
David Welch
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Re: Bronco Type XXIII build

Postby JWLaRue » Thu Jul 25, 2013 8:05 pm

It's always good to have a few farts around....I think the SubRon6 guys may have the market cornered because of their monthly road kill buffets. :mrgreen:

-Jeff
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