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  • July 17, 2018, 06:38:50 PM

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Author Topic: .25 or .36 for ARF Nobler  (Read 994 times)

Online mike londke

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.25 or .36 for ARF Nobler
« on: April 12, 2018, 04:07:46 PM »
Assembling an ARF Nobler for Sam. Choices are Thunder Tiger .36 or a Royal .25. The Royal is a dual ball bearing ABC schnuerle ported engine weighing 9.2 oz with a Randy needle/venturi.  The TT weighs 10.3. I know the TT.36 has plenty of power, the question is will the Royal .25 do the job and with what prop? I've read that most Nobler ARFs are nose heavy unless you use a Fox .35 so I'd like to save on weight by using the Royal. The up side is the mounting holes are virtually the same so I could swap between engines if needed. Anyone run one of these Royals? Will it produce the power I need? Thx.
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Offline David Ruff

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Re: .25 or .36 for ARF Nobler
« Reply #1 on: April 12, 2018, 05:55:12 PM »
Trick question.
None of the above.
Fox .35 😁
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Online peabody

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Re: .25 or .36 for ARF Nobler
« Reply #2 on: April 12, 2018, 06:44:56 PM »
Hi Mike....either is good...I would prefer the 25.....lighter, hopefully less fuel needed....
Have fun

Offline john e. holliday

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Re: .25 or .36 for ARF Nobler
« Reply #3 on: April 13, 2018, 11:10:43 AM »
Yes, go with the 25.   Then play with props and line length.   
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Offline Charles Meeks

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Re: .25 or .36 for ARF Nobler
« Reply #4 on: May 01, 2018, 07:49:01 PM »
Mike, I read in a post where Randy Smith said that an O.S. .25 FSR would make a great Nobler engine with a 10-4 prop.  The FSR is a dualBB engine that is schnurle ported.  They make lots of power.  I think the Royal is a clone of the FSR.  Randy Smith will know.  I researched this looking for info on my FSR and now plan to use it in my ARF Nobler. 
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Offline Matt Spencer

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Re: .25 or .36 for ARF Nobler
« Reply #5 on: May 19, 2018, 08:25:42 PM »
I found a OS 25 FSR pulled a 47 Oz thingo quite well , IF you flew it smoothly . In fact it taught smooth operation & the pitfalls of corse usage .

10 x 6 T F polyfloppy prop @ 9 1/2 with rounded fr of tip good , 9 x 6 or 9 x 4 if blowing .Black ones ( didnt break one , tho the poly got bent a few times ) .

Used 55 ft .018 lines , so about 58 ft radius . But flown on 67 Ft .016 solids ones , pulled itself thru with slack / bow in lines . But kept moving . Full schedule .

So the TT would be my choice . Ball Race .FSR Clone ( I assume ) . 

Offline Al Ferraro

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Re: .25 or .36 for ARF Nobler
« Reply #6 on: July 10, 2018, 05:55:38 PM »
Brodak 40 would be the best engine if you could pick one up.
Al

Online Tim Wescott

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Re: .25 or .36 for ARF Nobler
« Reply #7 on: July 10, 2018, 06:38:36 PM »
So did you get it flying?  What engine did you use?  How'd it go?
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Online mike londke

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Re: .25 or .36 for ARF Nobler
« Reply #8 on: July 15, 2018, 05:04:48 PM »
I put the .36 in it but never really got to fly it much. Controls started binding. I have to open it up. :(
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Online Tim Wescott

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Re: .25 or .36 for ARF Nobler
« Reply #9 on: Yesterday at 02:00:24 PM »
I put the .36 in it but never really got to fly it much. Controls started binding. I have to open it up. :(

I have the remains of an ARF Nobler that I got from a friend when it was still whole.  The controls started binding on that one, too -- at the top of an outside loop, which is why I only have remains, now!
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The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.


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