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SIG Mini Plane (Bipe)

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Old 01-28-2005 | 10:45 PM
  #1  
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Default SIG Mini Plane (Bipe)

Howdy -

Finally got the nerve to build a plane - haven't done so since Arf's showed up- sorry.

Feels good to cut balsa, and the smell of 30 minute epoxy fresh from the microwave can't be beat - except for a warmed Krispy Kreme. Anyway - sorry to ramble on.

Need some help with the powerhouse for this plane. Plans show a .45 Enya 2 stroke - plenty of speed, but I am a Saito Fan and would like to know if a Saito 40 is enuf - need to be mindful of wieght - lite plane - less than 5 pounds fully fitted - not looking for lightning speed as much as I am for low speed torque. Might also consider an old OPEN ROCKER OS.

Also - when it comes to laying in the Turtle Deck - any tricks would be welcome.

I will probably post more questions as I start building wings and such.

Oh, and if you have one of these - what are the flying characteristics?

Thanks -
Old 01-29-2005 | 02:16 PM
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Default RE: SIG Mini Plane (Bipe)

remember that bipes have a lot of drag. doesn't saito make a 52? that's the smith miniplane right?
Old 01-29-2005 | 06:26 PM
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Default RE: SIG Mini Plane (Bipe)

If that's the Smith Mini A four stroke is what it should have. I tried A couple of 46s and the plane was still too tail heavy. I stuffed one of the older OS 70s up front and that took care of the problem. A good 52 four stroke Sato would be just about perfect for that little squirl.
Old 01-30-2005 | 02:28 AM
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Default RE: SIG Mini Plane (Bipe)

Although I found the recommended c.g. position too tail heavy, with it moved forward to the lower wing leading edge, mine was a real joy to fly. Easy on and off the ground, good low-speed handling, and really yet very snappy.
I hope it's not your first kit! Also, those epoxy fumes are at least as toxic as the donut fumes, beware!
Old 01-31-2005 | 12:12 AM
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Default RE: SIG Mini Plane (Bipe)

Built the Sig Miniplane years ago. Hope this isn't your 1st kit. If it's your 1st bi-plane, one of the most important aspects is wing incidence. Makes all the difference between a nice easy flyer and a handful with lots of constant triming! Those cabane struts can be a little tricky to get the correct upper wing incidence angle.
As I recall, mine was powered with an old Fox .45 schnuerle. Very snappy aerobatic performer. Easy flyer though. Mine was a little heavy. Covered with silk and dope and painted with K&B Superpoxy. I guess that shows my age! Seems to me, it did require a couple ounces of weight in the nose.
One thing I do remember was I couldn't keep the wheel pants on. Also the fairing on the landing gear kept cracking. Finally did away with both. Nice little bipe though. Good Luck!

John
Old 01-31-2005 | 12:23 AM
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Default RE: SIG Mini Plane (Bipe)

I didn't do the fairing of the landing gear. Harry Higley's BIPLANES book uses the Smith as one of his projects, he details a good way to set up the cabane assembly. The book's well worth having anyway. Mine was in Monokote and applying the red sunburst over the white base was a huge hassle, I think Ultracote would be much easier.
I just loved this model, the way it looked and how well it flew! Wishing you the best with yours.
Here it is flying along the Continental Divide near Salmon, Idaho.
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Old 02-19-2005 | 10:50 AM
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Default RE: SIG Mini Plane (Bipe)

From the looks of those mountains, doesn't appear that the drought is over in Idaho. [&o]

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