This is one of those iconic airplanes that everybody should have in their collection of Sport aircraft.  I bought mine from Porkeez here in Sonoma County, and instead of using all of the recommended Eflite parts I switched it up a bit. 

I used a Scorpion SII-3014, 1040kv motor instead of the recommended Power 10.  Scorpion motors have a very high quality look and feel to them, and they tend to be slightly higher performance, and less expensive than E-Flite motors in many cases.   In addition, I’ve had nothing but good experiences with the NA distributor, Innov8tive Designs.  They publish a handy Motor comparison chart that makes it easy to match up their motor with another recommendation.  In addition, they publish extensive propeller data charts that are very helpful.

I coupled the Scorpion motor with a Castle Thunderbird 54, Hitec HS-65HB servos, and a JR R790 receiver.

The build was a very routine E-Flite ARF experience.  I give it high marks for fit and finish, and a few negative ones in that the hardware looks a little cheap.  Be very careful with the wing fillet.  It’s plastic that has been painted on the backside, and before the bottom wing is installed, it is prone to damage.

I used the E-flite recommended throws, which are about maximum on high rates and very close to that on low rates.  I found the thing a little twitchy on low rates with the recommended 25% expo, so I bumped the aileron travel down a few millimeters, and set the expo to 30%.  It feels better to me, set up that way.

The model rolls out fast and takes off immediately- This took me by surprise a bit on the first flight.  The light wing loading is immediately apparent, and you will see in the maiden video that I needed to use more right rudder on takeoff. 

Once up, it tracks clean and fast.  Turns look coordinated even when you do not use the rudder, and it rolls in and out of 3D with a grace that I have not experienced thus far.  Aileron rolls are fast, crisp, and clean.  The model flies as well inverted as it does right side up, almost hands off. 

Landing was pretty easy, as well.  It slows down nicely, and while it’s going to take a little practice to stop wagging the wings, it’s not a hard airplane to set down accurately. I used 1500mah out of a Turnigy 2200 in 5:30 of flight, mostly WOT. Peak draw was 46 amps on takeoff, and for most of the flight I was drawing 20-30A. The motor was cool to the touch after 5:30 of spirited flight.

In short, apply any superlative, positive term you can think of regarding the flight characteristics – I have yet to find something I don’t like about this airplane. 

BTW the snap roll feature is BRUTAL at 100% throws.  On my second flight, I hit the snap roll, and it dislodged Zeke’s Eagletree logger and smacked it against the leading edge so hard it bent the pins. (!)

Get yourself an Ultimate Biplane.  I don;t know if the E-flite/Scorpion/Hitec cocktail I brewed up is the best combination, but it sure seems to work well.

Getting to Maiden it on Christmas Day with a good friend was just the icing on the cake.

Happy Holidays,

- Eli