BATTLEAXE
Legendary member
You chuck glide it without the electronics to figure out what the natural CG is, then you start placing the motor and electronics around that, all the while trying to maintain the same balance previously discovered
Paper Airplanes to RC the Challenge
- Thread starter mayan
- Start date
DAWNSIGHT4
Member
Man I will have to start this project tonight!
Wildthing
Legendary member
Final balance is with all gear and battery in the plane ready to fly.
mayan
Legendary member
Generally either or. I did both ways and they both worked. Really depends if you have to have something fixed, like battery size or specific motor.
Welcome onboard
.
Screwball
Active member
Yes. There’s that. Or...Once weather permits she will be lit up. It could have the look of a meteor entering the atmosphere.
It could take off like a rocket (literally in this case), glide like Sonja Henie on winged skates, and land -as the fella says- like a butterfly with sore feet (if butterflies had really slender swept wings that generated vortex lift at a high angle of attack, that is).
Personally, I think it’ll be killer-diller either way...
Wildthing
Legendary member
Somehow I have my doubts about the butterfly part
mayan
Legendary member
Wildthing
Legendary member
Go to this site and enter your measurements and you will have a very close cg point to start with.
https://rcplanes.online/cg_wing.htm
AirBone
Member
The maiden flight of our paper plane was educational. Too much right thrust angle. Too much throw and not enough expo. It’s back on the bench and we will try again soon. Thanks for all the great information. It is truly appreciated. Also, when we hand toss it, it rolls over to the left? It is balanced on its lateral axis? Elevens are flat even.
Wildthing
Legendary member
Check your lateral balnce
Mr. Gandalf
Elite member
For those of you who saw it, this video is from the same day that I crashed my EAF edge.
I forgot to bring my packing tape which I was going to use to secure the battery, but I thought, "I'll toss it up anyway"!
I forgot to bring my packing tape which I was going to use to secure the battery, but I thought, "I'll toss it up anyway"!
It looked like it flew OK - until the battery fell out...For those of you who saw it, this video is from the same day that I crashed my EAF edge.
I forgot to bring my packing tape which I was going to use to secure the battery, but I thought, "I'll toss it up anyway"!
Mr. Gandalf
Elite member
mayan
Legendary member
WOW! Looks a little pitchy on the roll axis, but to short of a flight to know, just my thought.For those of you who saw it, this video is from the same day that I crashed my EAF edge.
I forgot to bring my packing tape which I was going to use to secure the battery, but I thought, "I'll toss it up anyway"!
Mr. Gandalf
Elite member
Screwball
Active member
Hey! I had a thought... (and Mr. H- says, "Well... that at least explains the smell.)
I'd hate to see you add ballast if you can avoid it. How much of a pain would it be to move your servos forward and extend the control rods? Get their moments working for you, or at least minimized. Make sense?
Mr. Gandalf
Elite member
Yes it makes sense, but I already have a multi-tool up front that I can move further towards the nose so I should be good.
Screwball
Active member
I've finished my airframe, so I thought I'd post a few pictures here, ...just 'cos, I guess. If you want to view an exhaustive (Mr. H- says, "You mean exhausting) write up of how I got to this point, look HERE:
https://forum.flitetest.com/index.php?threads/as-yet-unnamed-rc-paper-airplane-build-log.61856/
Motor, prop, and servos are now in hand, but I'm still waiting on the Owl Post to deliver the rest of the electronics. I'm planning to run a Bee Motor 1108 5000kv motor swinging an AVAN 3024 3-blade prop with a choice of 2s or 3s battery, maybe something in the 350-450 mAh range...?
I'm getting no love from eCalc; They don't list my motor or my prop, and I haven't been able to find anything close in the database. Which is a bummer, because I think I'm on the right track, but it would still be nice to run some numbers... I'm wanting to carry the smallest (read: lightest) battery I can, and still get decent flight-times, but I don't fancy shelling out for batteries I won't be able to use (at least not until I get around to modding another Nerf blaster... Hmmm... maybe I'll pick up a couple anyway...). As a point of comparison, the 400% version (see video in earlier post, this thread) takes a 650mAh 3s, but -during lazy flying- barely makes a dent, and she'll crawl around for days up there on an 800mAh 2s.
...but I'm just a monkey throwing darts at a board, so any insight/advice would be greatly appreciated...
https://forum.flitetest.com/index.php?threads/as-yet-unnamed-rc-paper-airplane-build-log.61856/
Motor, prop, and servos are now in hand, but I'm still waiting on the Owl Post to deliver the rest of the electronics. I'm planning to run a Bee Motor 1108 5000kv motor swinging an AVAN 3024 3-blade prop with a choice of 2s or 3s battery, maybe something in the 350-450 mAh range...?
I'm getting no love from eCalc; They don't list my motor or my prop, and I haven't been able to find anything close in the database. Which is a bummer, because I think I'm on the right track, but it would still be nice to run some numbers... I'm wanting to carry the smallest (read: lightest) battery I can, and still get decent flight-times, but I don't fancy shelling out for batteries I won't be able to use (at least not until I get around to modding another Nerf blaster... Hmmm... maybe I'll pick up a couple anyway...). As a point of comparison, the 400% version (see video in earlier post, this thread) takes a 650mAh 3s, but -during lazy flying- barely makes a dent, and she'll crawl around for days up there on an 800mAh 2s.
...but I'm just a monkey throwing darts at a board, so any insight/advice would be greatly appreciated...
DutchRoll
Well-known member
Oh - 4 Grams less than mine!
