jb86

My Feedback: (8)

i am building an edge 47". i built it w/the 2 pc wing conversion, wing built as one pc w/wing socket, then cut in 2 pcs. i thought my building board was flat enough, but when i turned the wing over to sheet the 2nd side, i found a bit of anhedral (opposite of dihedral), about a fat 1/16". with a straight edge across, along the spar from tip to tip, about a fat 1/16". is that bad? i figure being a 3d profile, it will be flying around in every direction anyway, throwing it around in the air.
any input?
jon b

Dewey2

My Feedback: (24)

It'll be fine. Inverted should be great.

Bob Yeager

My Feedback: (5)

It'll fly, believe me!

Ed_Moorman

My Feedback: (1)

Those SK-50's look good with anhedral, don't they.

AFSalmon

My Feedback: (3)

Yep I agree also. It's a 3d profile and will fly just fine. Might even discover something new and it will fly better!

Bob Yeager

My Feedback: (5)

Visit Ed Mooeman's web site for more information on anhedral, and other interesting "R/C stuff".
http://members.cox.net/moorman1/ProjectJoss.htm

I failed to give Mr. Moorman credit in my previous post. The SK50 shown is a unabashed copy of Ed's SK50, an original modification by Mr. Moorman.

Thanks Ed, for a fun project. I still get a kick out of the looks that it gets on the flight line!

jb86

My Feedback: (8)

another subject, i had a post on Q & A, but have gotten no response. i have a omp katana v2 .46, and kept as light as possible w/mini hobbico cs35 mg servos, hitec hs 5245mg (rudder). for an rx battery i wanted 6v, i used a mpi miracle switch (6v regulated, safer for rx than a 5 cell nicd) w/900 mh 2 cell lipo and an r/c reporter e version which beeps to count the amount of voltage in battery. after 5 or 6 flights it (r/c reporter) still beeps for almost 8 (or 7.8v) volts. i have about 15 flights on it, w/no problems at all. i have several other aircraft (more valuable) that i would like to set up the same (saves weight and provides 6v regulated); great planes extra 300 .60, pac aero edge 540, u can do. the only concern i think i would have would be if i was using any coreless digitals (hs 5945 draws 300 mh, hs 425 draws 100 mh), but probably use a larger lipo. does anyone in the profile sector see any problems with this? also any bad press on the hobbico cs 35 or mg? i have had good luck w/them. i plan to use on other aircraft.
jon b

AFSalmon

My Feedback: (3)

Good questions but from a purely electrical standpoint current is current and voltage is voltage. So even with digital servos you are faced with the same issue as any other a/c setup. And that is having enough battery capacity to service the servos for x number of flights. You can figure about 33 percent to as much as 50 percent more capacity needed when switching say 5 analog servos to 5 digital servos. That has been my experience on the giant scale planes. So if you normally run say 800 mah pack on a 40 size profile using 4 analog servos (don't count the throttle) and go to 4 digital servos, you may want to use a 1200 mah lipo pack. Keep in mind that a 2-cell lipo produces over 7 volts so after it is regulated down to 5v you have even more capacity than pure mah. Without getting into much math, wattage is the units of available power and watts = amps times voltage. I have no idea about the cs 45 servo!

jb86

My Feedback: (8)

thanks for the info in your reply mike.
jon b

AFSalmon

My Feedback: (3)

You bet, hope I could help in some way.

jb86

My Feedback: (8)

i got all the framing done, the two pc wing worked out great. the only thing i changed, and i know the guy that had the thread on the 2 pc wing would give me a hard time, but, i increased the length of the wing tube to the first r3 rib. all i did was sharpen the end of the tube w/a knife and saw into the first r3 (or sr3?) to keep in alignment w/the socket, then i made a small reinforcing plate w/1/16" ply and glued it in. much more sturdy, at the original length it had too much flex. i'll be using some light weight equipment in it to make up the difference. i also had trouble w/the foam lamination process. i got a bend in the fuse (i loaded the concrete blocks slightly unevenly). i built a new fuse w/balsa stick w/several pcs of carbon fiber lengthwise and a plywood engine mount, then skinned w/1/16" balsa. weight is almost identical and it's seems real strong. i start to cover it tonight, i'll have some pic's in by the weekend. i am using a tradition edge 540 covering scheme, white/red and translucent red bottom.
jon b

jb86

My Feedback: (8)

i got it covered and hinged the surfaces. that's my neice erica is holding the aircraft.
jon b

jb86

My Feedback: (8)

the two pc wing wasn't hard at all to accomplish, and now i have the ability to transport it. i haven't been able to own a profile (i've wanted one for a couple years), now i have something i can take to the field. i'll finish it in a few days, get a AUW, and give a flight report by the end of the weekend. for now it will have my old os 46 ax w/12.25x3.75, but eventually i'll get an os 50.
just wanted to show you i finished it w/the two pc wing.
jon b