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Sig Four-Star 60

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Old 11-06-2005, 11:11 PM
  #1
Darklotus
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Default Sig Four-Star 60

Hello everyone,

I'm looking into starting a new kit, and was looking at the Four-Star 60. Just have a few questions about this plane.

Q1: Does it have a single servo ailerons setup? Or is it a 2 servo setup?

Q2: I have a Satio 100, (that was on a ultra-stick that I lost last week) will that motor work well in it?

Q3: How is the construction of the plane? Any mods or fixes that need to be done?

Q4: How does it fly?

Thanks much,

James
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Old 11-06-2005, 11:19 PM
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Default RE: Sig Four-Star 60

Darklotus, mine is an ARF but I think the kit is much the same except being lighter and not tail-heavy. Each aileron has a wing mounted servo. The 100 would be perfect. I have a .91 Saito in mine, and it runs out of steam headed straight up. It flies very steady with no surprises. It's one of my planes I take out when I just want to relax.
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Old 11-07-2005, 12:27 AM
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Default RE: Sig Four-Star 60

1 It has two servos for the ailerons
2 yes the saito 100 will be fine
3 I added wheel pants from a venture 60 and a 60 size Klett tailwheel assembly can't remember changing or modifying anything else. Correction on that. The rudder and elevator servo pushrods are nylon in a tube. and they expanded and contracted so much during the temperatures changes during the day. the trim had to be changed as the weather changed. So i used 4-40 metal rods thru the stock outer tubes and got rid of that problem. any other questions just ask.
4It is an excellent flyer
Dennis
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Old 11-07-2005, 12:52 AM
  #4
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Default RE: Sig Four-Star 60

James,

Had a four star as a second plane. I sheeted the leading edge with 1/16 because I just like the look better. Also sheeted the rear turtle deck and carved a balsa cowl. I like the four star just wanted to be a little different.

Kit is great without modifications however do change the pushrods. They really grow with the temp and it is fustrating to deal wiith the trim changes when temp changes. The temp change from morning to afternoon in the summer is about 1/3 my trim adjustment.
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Old 11-07-2005, 09:05 PM
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Default RE: Sig Four-Star 60


Quote:
ORIGINAL: badger5964

James,

Had a four star as a second plane. I sheeted the leading edge with 1/16 because I just like the look better. Also sheeted the rear turtle deck and carved a balsa cowl. I like the four star just wanted to be a little different.

Kit is great without modifications however do change the pushrods. They really grow with the temp and it is fustrating to deal wiith the trim changes when temp changes. The temp change from morning to afternoon in the summer is about 1/3 my trim adjustment.

Just pull the plastic pushrods out and install Great Planes music wire pushrods. End of the growing problem and less chance for flutter. Worked for me.
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Old 11-08-2005, 07:40 PM
  #6
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Default RE: Sig Four-Star 60

Sweet! Can't wait to get this plane in my hanger. I'll do the push rods for sure. Thanks for all the help.



James
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Old 11-08-2005, 08:06 PM
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Default RE: Sig Four-Star 60

Just flew my dad's 4*60 today. Was a pleasure to fly something you didn't have to be right on top of. The ST 60 pulls it very well. No reason why a 90 to 100 four stroke would n't do as well or better. He had flown it maybe three times before pulling the carb off the ST 60 to put on a ST2500. The plane then sat for over two years! Took me 45 minutes of alcohol and windex to get the cigarette tar off it. Just wish he had broken in the motor as it tends to quit easily.
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Old 12-13-2005, 08:13 PM
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Default RE: Sig Four-Star 60

James,
I've done several 4 stars 60's and 120's. They are great as kitted, but the last one that I did (120) I modified by adding semi-eliptical wing tips, and did the tail feathers kinda-sorta like an extra 300 (bigger and lotsa throw) While it didn't turn the 120 into a 3-d plane, it sure did wake it up for aerobatics. It is still flying in the Nashville TN area. The pushrod suggestion is well worth the effort.
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Old 12-23-2005, 08:25 PM
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Default RE: Sig Four-Star 60

Waht's the lightest but stongest motor to put on a four star 60 without making thnose to heavy???
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Old 12-24-2005, 12:06 PM
  #10
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Default RE: Sig Four-Star 60

.90 size engine in a .60 size case. OS, ST and others make .90 size engines in .60 size cases.
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Old 12-24-2005, 04:45 PM
  #11
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Default RE: Sig Four-Star 60

thank's
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Old 12-28-2005, 01:08 PM
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Default RE: Sig Four-Star 60


Quote:
ORIGINAL: Darklotus
Q1: Does it have a single servo ailerons setup? Or is it a 2 servo setup?
Q2: I have a Satio 100, (that was on a ultra-stick that I lost last week) will that motor work well in it?
Q3: How is the construction of the plane? Any mods or fixes that need to be done?
Q4: How does it fly?
A1: It's a kit... you can build it with 4 aileron servos if you wish.
A2: Saito 100 is IMHO too nice of an engine for the 4*60. Better save it for some hotdog aerobat that needs a lightweight powerhouse. Saito 65 up to Saito 91 would work just fine.
A3: "Needs to be done?", maybe reinforcing the main landing gear block.
A4: Like a 4*. That is to say, it flies just docile and forgiving as a sport low-wing entry-level aerobatic plane should.
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Old 12-28-2005, 01:18 PM
  #13
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Default RE: Sig Four-Star 60

I had a problem with my Tiger 60 and need to replace the low wing, preferrably with an ARF. Anyone you know might have one?

I have written Goldberg twice and NO response.

Thanks for any help.
Bob, Yuma, AZ.
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Old 12-29-2005, 10:17 PM
  #14
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Default RE: Sig Four-Star 60

The Sig Four Star 60 will fly well with a broad range of engines. Saito's 65, 80, 91, & 100. Os/Magnum 70/91.

As you can see, the Saito 100 will have a lot of unneeded power.

I used a OS 91 in mine. It performed very well.

Enjoy,

Jim
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Old 01-08-2006, 12:36 AM
  #15
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Default RE: Sig Four-Star 60

hello, I have a 4 star 60. I have a magnum 91 4 stroke in it. flyies very well!! I also modified the ailerons and cut them in half so i could have flaps on it as well. I also added a tow hook release for towing gliders. I love the plane!
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Old 01-17-2006, 01:38 PM
  #16
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Default RE: Sig Four-Star 60

My Four Star 60 is the ARF version. Power is the Magnum .91 4 stroke turning a 14x6 prop. I built a new rudder that is 1.5 inches bigger, replaced the stock pushrods with carbon fiber rods, and used titanium prolinks and ball ends on the aileron linkages. With the power of the 4 stroke and the larger rudder, it will sustain knife edge flight with ease, and it really improved other aerobatics as well.
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Old 01-17-2006, 01:55 PM
  #17
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Default RE: Sig Four-Star 60

On my ARF those original control rods took more power to push than than the load on the control surfaces. I changed them out.

Enjoy,

Jim
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Old 01-17-2006, 07:48 PM
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Default RE: Sig Four-Star 60

I too have thought of putting a Saito 100 on mine. I have the kit all framed up and ready to cover,
its been that way for about 4 months and cant find time to finish it. But a $200-$300 motor on an
airplane like this seems wrong. I will put a S.T. .75 and save the money for a Saito to put on a
more scale airplane.

It builds easy, frames up nice. Dual ail. and is going to be a very nice airplane to fly. There is a
guy at our field that just uses it as a relaxing slow flying plane! Very very nice easy airplane to
fly!!
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Old 01-17-2006, 11:04 PM
  #19
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Default RE: Sig Four-Star 60

More on the pushrods.
I've put together two of the arf 60s. If you glue the pushrod tube that comes with a pushrod set inside of the already installed pushrod tube, you will end up with a little less slack in the system, and it will still be smooth. Throw away the nylon pushrods so you're not tempted to use them.

I've flown the 4*60 with a 61 two stroke, OS70 four stroke, both Saito and OS 91 four strokes, and a YS 91AC.

The 61 was too noisy and slimy, but it flew well.
The 70 FS makes a nice flier, but you don't get much vertical.
Both the OS and Saito 91 engines seem about perfect.
The YS 91AC was excessive for the plane. With enough prop to keep the engine happy, you really had to have the idle down to get it to land.

An aftermarket tailwheel is a good idea. The stock one tends to break from fatigue.

Larry
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Old 01-18-2006, 12:16 AM
  #20
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Default RE: Sig Four-Star 60

Yup, a Sullivan tailwheel is a must! As far as the engines are concerned, IMHO, for the money you cannot beat the Magnum .91 if you wanta 4 stroke on the nose. This engine has run flawlessly since the day I put it on. Not one deadstick in three gallons of fuel. Throttle response is crisp, and there is PLENTY of power for this aircraft.
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Old 01-18-2006, 01:14 AM
  #21
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Default RE: Sig Four-Star 60

Yea, I used the blue/yellow nyrods inside the existing outer sheath and it worked well.

I had a OS 91 Surpass on the plane. I thought the power was about perfect.

I'm sure the Magnum would be the same way. The engines look almost alike.

Enjoy,

Jim
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Old 01-20-2006, 12:49 PM
  #22
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Default RE: Sig Four-Star 60

how do all you fellas feel about the factory hinges(.91 saito is what im using)
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Old 01-20-2006, 01:33 PM
  #23
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Default RE: Sig Four-Star 60

I used the factory hinges and never had any problems. I had a OS 91 Surpass.

Enjoy,

Jim
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Old 01-20-2006, 01:55 PM
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Default RE: Sig Four-Star 60

thanks jim i have always switched to pin hinges,but i will try stock ones(3-4 drops of thin ca should do it)?trying to clean up the stock wrinkles(LOTS).Im in Cloverdale B.C the moist air should help that abit
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Old 01-20-2006, 03:18 PM
  #25
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Default RE: Sig Four-Star 60

My bad experiences with CA hinges has been the result of having CA all over the flex part of the hinge.

The hinges tend to break at the tip or at the horn.

Enjoy,

Jim
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