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Author Topic: SV 11 ARF  (Read 6358 times)

Offline Ron Hess Sr

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SV 11 ARF
« on: October 06, 2010, 05:29:55 PM »
could someone tell what PA motor rear ex with header muffler would be a drop in with no mods just mount and go??

Offline Norvaldo

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Re: SV 11 ARF
« Reply #1 on: October 07, 2010, 12:34:44 PM »
Hi.
The motor mounts are 34mm (1.34") apart on the inside.

My PA .61 is 36,1 mm , the Pa .75 is 37 mm.. , Rojett .67 36 mm..
Stalkers .61-.76 are 36 mm.


So for most engines in the .51 to .75 size range, you need to shave off 1-2 mm on the inside of the motor mounts.
This is really not a big problem since they are already generously sized.

The aluminum pads will still fit.


I use the Brodak Variable motor mount.


Norvald



Norvald Olsvold

Offline Jeff Prosser

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Re: SV 11 ARF
« Reply #2 on: December 02, 2010, 02:45:58 AM »
Hi Ron
It's been a while since you enquired about fitting a motor to your SV11.  I am curious to know which motor you chose and how well it fitted as I am thinking of buying an ARF or ARC.
What did you think of the ARC version as regards quality etc.   I assume it flys pretty well.

Jeff

Offline David Shad

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Re: SV 11 ARF
« Reply #3 on: December 04, 2010, 07:25:11 PM »
Although I am not Ron...I am just starting a SV-11 ARF and I am putting a PA.75 in it...a little shave on the motor mounts and it drops right
in...the header is a 1.5 inch drop and I just got the quiet pipe from Randy for it to complete the power train.
Big Dave AMA 80235

Offline Jeff Prosser

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Re: SV 11 ARF
« Reply #4 on: January 27, 2011, 04:24:46 AM »
Hi Dave
Thanks for relying to my post.   Sorry I took so long to read your reply.   I have since bought a 60" stunter from a fellow club member (Adelaide Aeromodellers in South Australia) which is a design of his.  Coincidently it has a PA75 in it, so I'm glad to get your reply and find that I can fit the PA into an SV11.  Did you buy a kit or ARF or ARC.  I suppose I should look at doing something as I believe they may become scarce in the near future.

Jeff

Offline David Shad

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Re: SV 11 ARF
« Reply #5 on: January 27, 2011, 05:03:55 AM »
Too late Jeff...the big PA engines are out of stock for awhile...Randy is working on the problem to fill
the need so there is hope in the future.  Randy does have the Enya .61 in side and rear exhaust versions
and the Rojett is still being made in large sizes.  If you should know of an available PA .65 or .75 I have
a plane ready with no engine and would be interested in it.  Thanks.

Oh...to your original question...I have the ARF SV-11...Randy had one in his garage and I picked it up
during a visit...He just lives an hour or so north of me.
Big Dave AMA 80235

Offline Brian Hampton

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Re: SV 11 ARF
« Reply #6 on: January 29, 2011, 07:47:36 AM »
G'day Jeff,
I think you know I picked up the ARC kit of the SV-11 from Russell and have made a little progress at building it. Any mods that I'm doing can be done with the ARF as well and at only about a $10 difference I'd go for the ARF to save all the hassles of covering unless you want one to look a bit different. I was going to use my Stalker 61RE but changed my mind and am now in the process of ordering an Enya 61RE from Randy.

Offline Jeff Prosser

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Re: SV 11 ARF
« Reply #7 on: February 02, 2011, 04:29:18 PM »
Hi Brian
Why did you decide to go for the Enya 61 ?

Jeff

Offline Jeff Prosser

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Re: SV 11 ARF
« Reply #8 on: February 02, 2011, 04:38:28 PM »
Hi Dave
I expect that you are happy with the ARF version or you would not have bought it.  I expect Randy would have recommended you to use the PA75, so it should be a good combination.
Are you making any changes to the ARF; controls etc. ?

Jeff

Offline Brian Hampton

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Re: SV 11 ARF
« Reply #9 on: February 02, 2011, 09:12:45 PM »
Hi Brian
Why did you decide to go for the Enya 61 ?
Hi Jeff
Because both my Irvine and OS RE61's are too heavy? :)
Truthfully though, I prefer RE engines and have always liked Enyas and seeing they're so much cheaper than any other RE engine for stunt use I knew I'd get one some day. The day has arrived :). Hopefully this'll also curb my compulsion to buy engines unless I can find a Dooling 61 for less than $100 :).

Offline David Shad

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Re: SV 11 ARF
« Reply #10 on: February 03, 2011, 05:09:57 AM »
The only concern I had with the control system was the crimped leadouts...the wire was ok but I have
alwasy used the wrap method to finish the ends...so I replaced those and all is good now.   I must say
that the heat shrink covering on these newer ARF's from Brodak is much improved and the trim is well
done...also my wing is straight as an arrow as are the other bits and pieces....I hope it's the same for
the planes you received.

As a side note...I changed my mind on the PA .75 and put in my PA .61RE w/pipe...only because the 61
was already broken in and needed a home and the 75 is still un-run.  The all up with powertrain is a very
decent 62.5 ounces...I still have to fuel proof the nose but otherwise that should be it.
Big Dave AMA 80235

Offline Jeff Prosser

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Re: SV 11 ARF
« Reply #11 on: February 03, 2011, 07:36:18 PM »
Thanks for the info Dave. I'll have a look at the leadouts.  62.5 oz is certainly very respectable.
Jeff

Offline Brian Hampton

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Re: SV 11 ARF
« Reply #12 on: February 03, 2011, 08:57:51 PM »
The control system is what's given me the most headaches so far but I've finally settled on what suits my needs as best as possible. First up was bellcrank travel which gives the distinct possibility of so much movement the flaps/elevators will bind at their maximum travel of about 40 degrees so I fitted bellcrank stops in the outer wing panel to limit leadout travel to 55mm between neutral and full up/down which is almost exactly the same travel as on my 2 other stunters. Bellcrank rotation is now 35 degrees either side from neutral. With both the flap and elevator pushrods connected to the top hole in the flap horn the 35 degrees of the bellcrank translates to a max of 25 for the flaps and minimum 34 degrees for the elevator.

I've kept the crimped leadout arrangement but didn't like the arrangement of the brass tubing through the bellcrank arms because the wire suddenly bends around the sharp end of the tubing to the crimp. I put a close fitting drill between the tubing and the bellcrank then squeeezed the ends together and now it's a straight run as the photos show. OK, one side bent more than the other but the result is the same :).

Offline Noel Corney

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Re: SV 11 ARF
« Reply #13 on: February 03, 2011, 11:34:11 PM »
Brian and anybody else doing ARF's ,If you are going to go with the original leadouts check that the crimps have not been over squashed, every one I have seen has shown cracking or at the very least fatigue marks on the crimps,When the crimps are removed I have been finding damaged cable,I just replace for my own peace of mind. Not much work to have a more reliable(SAFE) set up. Regards ,Noel.

Offline Doug Moisuk

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Re: SV 11 ARF
« Reply #14 on: March 25, 2016, 07:16:48 PM »
The only concern I had with the control system was the crimped leadouts...the wire was ok but I have
alwasy used the wrap method to finish the ends...so I replaced those and all is good now.   I must say
that the heat shrink covering on these newer ARF's from Brodak is much improved and the trim is well
done...also my wing is straight as an arrow as are the other bits and pieces....I hope it's the same for
the planes you received.

As a side note...I changed my mind on the PA .75 and put in my PA .61RE w/pipe...only because the 61
was already broken in and needed a home and the 75 is still un-run.  The all up with powertrain is a very
decent 62.5 ounces...I still have to fuel proof the nose but otherwise that should be it.

Do you still have the PA 75?  Want to sell it?
Pleessee!
Doug Moisuk
MAAC 3360L


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