Great Planes has released the EP Falcon for anyone ready for a light foam, 4 channel trainer. We got our hands on one and were “schooled” in old-school stability. This is one plane that has to be flown to be believed…
We’d never had the opportunity to fly a Carl Goldberg Falcon Jr. so the EP Falcon was our first experience with the airframe design. If the original flew anything like the EP version, the old-timers had a good thing going!
The EP Falcon was everything you’d want in a 4-channel aircraft. Stable, smooth, very forgiving and an absolute blast to fly. Whether you take advantage of indoor flying or stick to outside on a calm day, the EP Falcon won’t let you down. As for aerobatics, well, you can pull off loops (all day long) and rolls (a little squiggly!) but inverted flight is not what under-cambered wings were intended to support. Keep the horizon upright, carve some aggressive bank, loops, or nice steep pull-outs, and the Falcon will keep you grinning. New to flat turns? This is your bird.
We’ve had the opportunity to fly the Falcon outdoors since the review filming and we can say that it is amazing! On a calm (very calm) day outdoors, this may be the perfect four channel trainer. You’ll want to hop up to a 400-450mAh battery or you’ll be back on the ground within about 5 minutes. The landings on a hard surface (like the street in your neighborhood…but you didn’t hear that from us because that would be irresponsible) are incredible. Chop the throttle and dead stick the Falcon in for a perfect three point landing…every time.
Great Planes has done Mr. Goldberg proud with the EP Falcon! Pick one up and re-discover your local park…
Offset Aileron Servo Arm
As Rob had mentioned, the Offset Aileron Servo Arm center hole was too small to fit the recommended Futaba servo horn center spindle. Use a tapered reamer to increase the hole size, in small increments, until the offset arm fits snugly over the servo horn. Make sure the offset arm and the servo horn fit flat against each other or you’ll have problems installing the 1.0mm screws.
(Page 9 of the instruction manual – Assemble the Wing, Hook up the Ailerons, Step 1)
The pushrods that were supplied in our kit were .046″ (1.1684mm). The pre-drilled holes on the Offset Aileron Servo Arm as well as the other control horns were a bit smaller. In the case of the offset arm, we had to drill out the holes to match the control pushrods.
(Page 9 of the instruction manual – Assemble the Wing Panels, Hook Up the Ailerons, Step 4)
Aileron Servo Tray
The recommended S3114 Futaba Servos did not fit the aileron servo tray, they were too large. Mark the correct opening on the plastic tray and cut/ream out the opening to fit your servos. Be careful not to make the opening too large since the the mounting holes in the servo itself are very close to the servo body.
(Page 9 of the instruction manual – Assemble the Wing, Hook up the Ailerons, Step 3)
Aileron Linkage Trimming
Once you install and adjust the elevator pushrods, you’ll want to trim off the excess rod length to avoid control horn binding. Make sure you’ve already centered the servo by connecting it to your radio system, securely fasten the pushrods and test your ailerons before trimming.
(Page 9 of the instruction manual – Assemble the Wing, Hook Up the Ailerons, Steps 4 and 5)
Aileron Servo Extension (general builders tip)
Here’s a handy tip: Whenever you have the opportunity to mount a servo extension to the inside of the fuselage on high wing models…do it! This little convenience makes it a lot easier at the field to hook and unhook your aileron servos. Just a drop of gap-filling regular CA for the location shown does the trick. Just be sure to keep the CA away from all foams (except EPO) or you’ll end up with a melted, gooey fuselage.