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Old Nov 17, 2014, 06:16 PM
Semper Fi
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United States, CA, Rancho Cucamonga
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Quote:
Originally Posted by SwissBoy View Post
Does anyone have another way to attach the stock tail to the boom? My plywood pieces are toast...broke them and not super sure where to go from here. I didn't really like the original pieces anyway, pretty draggy.
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Old Nov 17, 2014, 08:25 PM
No, you can't fly it.
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United States, WI, Menomonie
Joined Nov 2006
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That would work if I did a non-stock tail...but I just want to reattach the stock one. Just the wood pieces snapped, the tail is fine (and I have the servos built in to the feathers).
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Old Nov 18, 2014, 12:42 PM
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duct tape
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Old Jan 07, 2015, 12:17 PM
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Canada, BC, Kimberley
Joined May 2013
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EPP-FPV in the Rocky Mountains

EPP-FPV in the Rocky Mountains :
Flying The Hobbyking EPP-FPV in the Rocky Mountains (2 min 20 sec)
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Old Jan 16, 2015, 01:38 AM
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Originally Posted by vvV FANG Vvv View Post
After nearly a month of painting and procrastinating my plane is almost ready to go!

A fair bit of time went into sanding it all down and painting it. I didn't like the really rough surface and i tend to spend a lot of time making my planes look pretty ..... I know it probably doesnt make a big difference to the plane but the building and painting is probably the part i enjoy the most about rc planes.

The wings and tail bits were all sanded with a small orbital sander and then by hand before being given a couple of coats of some kill-rust paint which has epoxy in it. I reckon it helps to give foam a bit of rigidity and a bit of a skin.
I sanded between coats and then gave some colour and made a template from the wing pattern to paint some new patterns on it.

The fuse was fairly smooth so it only had a light sand and colour put over the top.

Still have a few control horns and pushrods to setup and also the electrics .... but it at least now looks like a plane!
This looks really nice. that and making mine into a T tail are in the plans now.
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Old Jan 16, 2015, 01:47 AM
BashMonkeyRC
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United States, OR, Marcola
Joined Sep 2013
120 Posts
Quote:
Originally Posted by SwissBoy View Post
Does anyone have another way to attach the stock tail to the boom? My plywood pieces are toast...broke them and not super sure where to go from here. I didn't really like the original pieces anyway, pretty draggy.
Was it just the baseplayes or the boom mount pieces too? If it was just the baseplate then this could work: I just scrapped the plywood pieces, laid down a straightedge perpendicular to the seam straight down the middle and cut the slots for the boom mounts with an xacto. Just work in a spot for em, make sure the boom rings are lined up with the seam, pulled back out, glue em and reset em. Better bond IMO
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Old Mar 24, 2015, 05:02 PM
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Joined Dec 2007
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I am building my epp-fpv right now.

I did decide to put the tail servos on the tail, not on the boom.
I did not like the way the tail is fastened to the boom. Those spars must be draggy like hell. Is there a simple and better way?
I dont like the rubberband way to attach the wings. I did like the nylon bolt thing.

I did put in a SK3 - 3530-1340kv motor. 10x5 prop. On the bench it works nicely, over 200 watts on 3S, low vibration, not too noisy.

I wonder if running this 1340kv motor on 2S develops enough power for the plane? Reason is i got some 5000mah 2P2S packs here. Thats 10000mah 2S. Resoldering them for 3S is difficult. I dont need much power, just a modest climb rate. Payload will be the 450g battery (or 2) and lightweight FPV + electronics.

Edit:
I did use ecalc and the trust on 3S is 1700g, while on 2S its only 850g. I wonder if this thing does climb with 850g trust.
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Last edited by Cesco; Mar 24, 2015 at 06:23 PM.
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Old Mar 24, 2015, 09:44 PM
BashMonkeyRC
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United States, OR, Marcola
Joined Sep 2013
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Quote:
Originally Posted by Cesco View Post
I am building my epp-fpv right now.

I did decide to put the tail servos on the tail, not on the boom.
I did not like the way the tail is fastened to the boom. Those spars must be draggy like hell. Is there a simple and better way?
I dont like the rubberband way to attach the wings. I did like the nylon bolt thing.

I did put in a SK3 - 3530-1340kv motor. 10x5 prop. On the bench it works nicely, over 200 watts on 3S, low vibration, not too noisy.

I wonder if running this 1340kv motor on 2S develops enough power for the plane? Reason is i got some 5000mah 2P2S packs here. Thats 10000mah 2S. Resoldering them for 3S is difficult. I dont need much power, just a modest climb rate. Payload will be the 450g battery (or 2) and lightweight FPV + electronics.

Edit:
I did use ecalc and the trust on 3S is 1700g, while on 2S its only 850g. I wonder if this thing does climb with 850g trust.
Are you talking the spars on the control planes? Because I made sure those are inset and therefore low drag. And the rubber band method isn't that uncommon, it helps lessen damage in a crash as screws (especially nylon screws) can still break or pass the force on to something else to break. Obviously the stock rubber bands are crap, you need to find some other industrial size bands a size or two larger. I snag some from work and use those

Besides making sure all corners of the motor are bolted and taut, I have a folding 10x6 prop to help lessen vibration

I'm not too sure 2S would work for an airframe this size, they're usually rated for 3-4S systems and most people would use 4S.
kv=rpm x volts; Based on that model obviously the motor would get more rpm's on 4S than 2S. If your setup is really light then I guess you could try it, but I'd still reserve it for low wind conditions and short flights
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Old Yesterday, 07:34 AM
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Quote:
Originally Posted by KNote72 View Post
Are you talking the spars on the control planes? Because I made sure those are inset and therefore low drag.
Good idea. But i already glued them on top and im reluctant to break them off again. Will do that after 1st crash.

Quote:
Originally Posted by KNote72 View Post
If your setup is really light then I guess you could try it, but I'd still reserve it for low wind conditions and short flights
I will try it. i understand low wind conditions, but flight times should be long. Those are 10000mah monsters, and i got 4 of them. This should give short of 1 hour flight time at 10A cruise speed per pack.

Another problem is my wing. Wont fit together. Still thinking what to do.
Servo mount on tail looks good i think.
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