ElectricFlight I
have now had a bit more experience with the FlyZone Triplane. Mixing the throttle with the elevator makes a real difference. It is now quite easy to fly
and can be slowed down to comfortably fly indoors much better than the Albatros. Af- ter a few midairs and encounters with bas- ketball backboards, I have become quite adept at repairs. One problem with the mod I suggested to allow installation of a 150 mAh battery is that in a crash the battery can move forward and knock off the bottom cylinder of the dummy motor. A small piece of plywood will fix this. I finally got around to building my Jinwoo
Choe
jinwoochoe@hotmail.com Sopwith Tri- plane. (I have had the $40 kit since Septem- ber). It’s a neat kit and an interesting build that results in a great flier at 2.25 ounces/square foot wing loading. I hit it with a little color spray as I can’t stand to see a model like this naked white. Insignias are computer printed tissue glued on with thinned down RC-56 over masked areas. I meant to just get it decorated on par with my FlyZone Albatros and Dr.1 out of the box. Gluing foam drives me bananas. The con- tacts latch up before I get perfect alignment. CyA works a bit better, but I manage to get glue on my fingers that lift paint. Working with Depron® and various glues was a real education. Yes, Ronsonol (naptha) lighter fluid will dissolve the glue joints on FlyZone models without attacking the foam. It also thins Beacon Foam-Tac and UHU Por and UHU Creativ nicely. I have also tested Foam-Tac and Ronsonol on Depron®, blue, pink, and white expanded Styrofoam® with no ill ef- fects. The joints produced are more flexible than they would be if foam safe cyano had been used and thus more rugged. RC-56 and other canopy glues can be used
as contact cements by applying them to the mating surfaces and letting them dry for a few minutes before joining. The joint can be moved around a bit for alignment before it sets up completely. This procedure can also be used with Beacon Foam-Tac or the UHU glues. However if the surfaces get too dry they act as contact cements and grab immediately allowing no adjustment for alignment.
by stew meyers You can reach Stew Meyersat 8304 Whitman Drive, Bethesda, Maryland 20817, or via e-mail at
stew.meyers@
verizon.net After flying Ebeneezers with Dart Diesels,
I modified one to use a GWS stick (IPS-A) motor and a Pico timer. I then built an all- balsa 14-inch span Nieuporteneezer (sorta N-11 version). It finally flew well when I got a 7mm motor with gear box from BSD Mi- cro. I have since used a ParkZone J-3 motor, sometimes with a timer and sometimes with a small radio for throttle control. I have at times hooked up a rudder servo. After building Jin’s Triplane, I decided to
do a scale N-11. As an intermediate step I enlarged the Nieuporteneezer to 16 inches and went to foam construction. It has a 6mm Depron fuselage; the rest is 1mm Depron®. The other Ebeneezers had flat plate air-
foils, but this was to be an exercise in curved airfoils. I need the practice working with foam. On this example I just curved the 1mm Depron® and glued it to the ribs. This caused the wings to scallop slightly between the ribs. I have since heat formed 1mm Depron® wings on a form in a warm oven which cures the scallop problem. 0.8 mm
carbon rods are used as spars. Thread is used as working rigging and adds signifi- cantly to the rigidity of the wings. Weight is 26 grams and wing area about
60 square inches, resulting in a wing load- ing of 2.2 ounces/square foot. The equipment consists of an AR6400 receiver, 130 mAh Li- Po, and a red back 7mm motor with a GWJ 7mm tab mount gearbox. It flies quite well indoors or out. Outside it’s a kick to spin, loop and barrel roll. Plans and an expanded article will be available in R/C MicroWorld
www.fullsizeplans.com. After using the AnyLink parasite trans-
mitter module and getting used to it, I be- came intrigued by Hobby King’s
http://www.hobbyking.com Super Micro se- ries of receivers. These are comparable in size and weight to the ParkZone Vapor bricks and Spektrum AR6400 receivers. They are not DSM2 compatible as are some other HK receivers and require a HK-X600 RF module. These modules plug into the back of some
PHOTOS: PAT DAILY
Your columnist with his Jinwoo Choe Sopwith Triplane (above). With a P-51 motor and AR6400 receiver, 70-square inch area and 31-gram flying weight (below left), it flies slower than the Flyzone DR.1 tripe. Maiden flight of Stew’s Sopwith Tripe(below right) at the National Building Museum. It flies great indoors or out.
50
JULY 2012
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