rainedav’s build thread http://www.rcuniverse.com/forum/m_3691626/tm.htm on his Kaos 42 reminded me how much fun miniature pattern aircraft are. Midwest upsized Phil Kraft’s Flea Fli to the Flea Fli + 10 and I have one of the kits that is in the pipeline for building along with a Tower Kaos 40 kit. The miniatures can be flown in small airspace and short runways. Because they are so small you tend to fly them close in and place your pattern right over the runway in front of you.

I have a 10 and 25 size pattern aircraft that I designed and built in the mid 70s and still enjoy flying them very much. The 25 has a 15% laminar flow airfoil and the 10 has a semi-symmetrical airfoil. The laminar flow airfoil has the thickest part of the airfoil back around 40% and has a fairly sharp leading edge. Both of the old original OS FP engines were replaced about 10 years ago when OS came out with the Schnuerle ported FPs. The new engines gave them a lot more zing! The 25 is all wood and the original 10 was all wood. The 10 shown is the second in the series and has a fiberglass fuselage and a built up wing and tail. The fiberglass work was done by a friend to my original design shape but with much rounder shapes. They were both built when I was in my silver, red, white and blue days! The 25 weighs 2 lbs 13 oz and the 10 is 2 lbs 5 oz.

Views of the 25 and the 10.