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operating front planes?

R/C Submarine modelers

operating front planes?

Postby U-33 » Sat Jan 03, 2009 9:11 am

OK guys, an honest opinion please…

Is it really worth having operational front planes? Do they do much to help the boat dive, or could I rely on the rear planes only? The hull is a teardrop shaped one, by the way, similar to an Albacore, and the planes are bow (not sail) mounted.

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Postby Wayne Frey » Sat Jan 03, 2009 9:33 am

Depends on the size of the boat.
Smaller ones, similar to the thor alfa, it is not a big deal. However, on a larger hull, like a 1/32 scale, it would matter. Especially a bow mounted plane. The boat will react more to that than a sail mounted plane.
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Postby U-33 » Sat Jan 03, 2009 9:59 am

The boat is just about 900mm overall length Wayne...I guess I could always mount the planes in a raised position?

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Postby Sub culture » Sat Jan 03, 2009 10:04 am

A seawolf does not need front vanes, although they can sometimes add a degree of subtlety to the boats control. The rear vanes are very responsive, being large in size and sited behind the wash of the propeller.

I'd recommend the fitting of a leveller though.

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Postby U-33 » Sat Jan 03, 2009 11:13 am

Sub culture wrote:A seawolf...........???

Andy


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Postby Sub culture » Sat Jan 03, 2009 11:54 am

What's the look of surprise all about. It is a Robbe Seawolf you're working on isn't it?
'Why are you staring at an empty pond?'

Want to dive your boat in crystal clear water? Then you had better Dive-in- http://www.diveintomodelsubmarines.co.uk
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Postby U-33 » Sat Jan 03, 2009 12:30 pm

And what makes you think that Andy?


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(ok, it is...but you'll not recognise it as such...)
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Postby Sub culture » Sat Jan 03, 2009 12:36 pm

The pictures you posted up on Facebook, but which were removed not long after. they looked to me like a Robbe Seawolf with a different conning tower/sail attached.
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Postby U-33 » Sat Jan 03, 2009 12:59 pm

Naff...I didn't think anyone had time to see them!
Oh well...the cat's out of the bag then, as they say...it's a Robbe Sea Wolf V2 with a new sail, new bow planes, and much more deck/hull detail. It's based upon a cold war Russian sub that was actually never built(it never left the design table)which gives me plenty of 'artistic licence'.
So far it has four channel radio, the static dive system is almost done and the bodywork is in the late stages of completion.

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Postby Sub culture » Sat Jan 03, 2009 7:19 pm

They look very small. i wouldn't bother making them operational.

Sail looks a bit out of proportion with the rest of the sub. May cause you some roll problems on turns.

I'd cut it down a bit i.e.-

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Postby U-33 » Sun Jan 04, 2009 4:25 am

Point taken about the sail and agreed with Andy, but there is a good reason for this,,,,the sail and the front planes are borrowed from the Blueback and when that boat becomes operational they will be going back on her, so I don’t want to start hacking and chopping the sail around. I guess the sail is about ¾” too high, but I can live with that.

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Postby aquadeep » Sun Jan 04, 2009 1:11 pm

I would make them operational ,they arent that small ,I have an Scale Ships AkulaII and that sub has small scale bow planes.

I ran her both with and without and the best periscope keeping and depth changing manuevers was with dive planes on the bow,well worth the effort.

Dave :D

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Postby U-33 » Sun Jan 04, 2009 5:20 pm

Point taken Dave...I've made the front planes operational, that way I can use them if needs be, or if I don't need to I can just leave the tx stick alone.

Nice Akula, by the way...I like those boats, evil looking things aren't they?

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Postby Vanguard UK » Mon Jan 05, 2009 12:12 pm

I'd go with working as well, had them working on my Trafalgar & they were very small, but had them set up as a trimming aid when dived & it made for a very stable boat, I've only got small ones on the Vanguard but I'll be wiring them up.
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Postby bob_eissler » Mon Jan 05, 2009 4:28 pm

Skip had an article in an early SCR on an easy way to make the planes operational. Don't remember which one, I think you have a spring on one end so the servo inside just pushes against it.
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