SIG Mini Plane (Bipe)
#1
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From: Alexandria, MN
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 -
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 -
#3

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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.
#4
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!
I hope it's not your first kit! Also, those epoxy fumes are at least as toxic as the donut fumes, beware!
#5

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From: lima,
OH
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
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
#6
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.
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.



