Balancing the SIG Four Star 60 ARF
05-29-2006, 06:27 PM
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Balancing the SIG Four Star 60 ARF
I was at the hobby shop yesterday and they had a 4*60 ARF on the shelf. These have been unavailable, most places, for a while so I was surprised they still had one. I couldn't resist, so it's now spread out in my hobby room.
I have seen suggestions to replace the nylon pushrods with #4 solid wire rods; I can do that easily enough.
I have read a few comments about the model being tail heavy. I'll most likely be using a Magnum 91 four stroke, and plan to use a 4.8v 1650mah AA nimh battery pack. I know the solid pushrods will add tail weight, and a Sullivan tail wheel bracket might add a little more.
I do not plan to build larger control surfaces; I plan to assemble the ARF pretty much the way SIG intended.
Any guess how much nose weight this thing is likely to need?
I have seen suggestions to replace the nylon pushrods with #4 solid wire rods; I can do that easily enough.
I have read a few comments about the model being tail heavy. I'll most likely be using a Magnum 91 four stroke, and plan to use a 4.8v 1650mah AA nimh battery pack. I know the solid pushrods will add tail weight, and a Sullivan tail wheel bracket might add a little more.
I do not plan to build larger control surfaces; I plan to assemble the ARF pretty much the way SIG intended.
Any guess how much nose weight this thing is likely to need?
05-29-2006, 08:00 PM
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RE: Balancing the SIG Four Star 60 ARF
I had a 4*60 kit with a magnum 75 on the nose. I didn't need any weight to balance the plane. Flew that thing just about weekly for 3 years; until the wing folded on me.
Enjoy
Enjoy
05-29-2006, 08:59 PM
#4
RE: Balancing the SIG Four Star 60 ARF
Carrell, I'm running a .91 Saito on my 4Ûž60. I had to fab some little steel flatbar extension rails to balance in the middle of the range. This was with everything moved as far forward as possible. I think with a .91 Maggie, you might be fine with it on the very end of the rails on the provided mount.
05-30-2006, 09:01 AM
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RE: Balancing the SIG Four Star 60 ARF
My guess is you won't have to add any tail weight at all. Mine balances perfectly with a TT.91RFS and with the battery underneath the fuel tank. You're going to love the plane.
good luck,,
good luck,,
05-30-2006, 01:39 PM
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RE: Balancing the SIG Four Star 60 ARF
Thanks guys. I haven't started assembly yet. I inventoried everything and looked over the assemblies. It appears that they did a good job on this one. I will say it is a LOT of yellow. It will probably glow in the air. I'm thinking about getting 4 big stars (black) cut for the bottom of each wing to make it easier to tell top from bottom.
05-31-2006, 12:59 PM
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RE: Balancing the SIG Four Star 60 ARF
carrellh,funny i just picked one up too.i got the wing done already and this will be my first arf.i just dont have the time to build now,i have a 0s 91 im putting in mine,and i have read they come out tail heavy too
i was thinking of some white or yellow stripes under mine on the bottom of the wing
i was thinking of some white or yellow stripes under mine on the bottom of the wing
