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Oct 21, 2012, 12:35 PM
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hangglider's Avatar

First Flights


Alula (10 min 22 sec)

It's kinda longish, but over an hour ended up on the cutting room floor.
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Oct 21, 2012, 04:08 PM
Location: Zurich/Sweden
funkz's Avatar
Quote:
Originally Posted by Ming
Last 20 leave.

Ming Lou
Ready to buy one of those, just let me know what kind of shipping are you using? how many weeks to get it to Switzerland?

Also, does anyone knows If there's a new design coming up? Or new stock at dream-flight means more EVO's?

Tx!
Oct 22, 2012, 03:38 PM
Registered User
dutchxxl's Avatar

Small vid of lazy saturday


We went out to the local rocket club to see some launches, and ended up tossing the alula, its not much but it was a nice lazy saturday with the family.
We saw rockets, quads driving through water, crossbikes, powered parasailing,
rc cars and planes and finally got mud all over the car.
It was a great afternoon.!

Lazy saturday with the rc toys and family (2 min 12 sec)
Oct 23, 2012, 06:21 AM
Location: Zurich/Sweden
funkz's Avatar

another longish video


First naive flights of the Alula, many mistakes, due to not being able to have the remote futaba 6ex to get the right stick to do elev and ailerons.

I have now elev on the left stick (throttle) and of course it doesn't return to the middle point by itself.

Have tried v-tail to no avail, having to go with elevon.

Anyhow, after a first few nose crashes on soft grass it got the "nose" broken where everyone else reports, on the link with the wings... This is something that makes me think the Alula EVO really needs a reinforced system to help the novice flyer sustain a couple of more runs before breaking it apart. Some glue and much more tape and I had the chance to learn to throw and enjoy relatively pleasant flights under a no-wind dusk.

alula bn (2 min 2 sec)
Last edited by funkz; Nov 03, 2012 at 04:43 PM. Reason: changed video for a newer one
Nov 01, 2012, 12:35 PM
Registered User
Alula moulding needs changing. Where the nose meets the wing is a sharp corner; this is a stress raiser, leading to breakage due to crash and launch stresses.
There needs to be a large fillet incorporated in the design at this point, say 10mm radius.
It could easily be incorporated in the next mould run as it would involve removing mould material, which is relatively cheap.
Also the elevon hinge material is too thick, probably due to mould wear over time; this is more expensive to fix as it requires metal spraying and grinding back. I have tried sanding away the hinge material, but servo resistance is way too much.
The design would be better recommending elevon removal with a sharp knife and hingeing with tape.
Does Michael read this thread or should I send these thoughts direct; are they reasonable comments?
Tony
Nov 01, 2012, 01:02 PM
Location: Zurich/Sweden
funkz's Avatar
all reasonable comments, it will be nice to have a newer more resistant alula.. i will happily buy one.. but stock or production seems stalled for a while now.
Nov 01, 2012, 03:38 PM
Registered User
ClayH's Avatar
Hangglider,

You need to glue the top joint between the fin and the wing. If you look at your video at 0:42-0:43 you'll see side movement on launch that will translate to a broken fin sooner or later and might be costing you a little launch height as well. Nice onboard video!

Clay
Nov 03, 2012, 04:15 PM
Registered User
hansdms's Avatar
Me any my Alula tameing the stormy skies. Taken at Abraham Lake near Nordegg Alberta.
Nov 09, 2012, 10:34 PM
Registered User
hangglider's Avatar
Great Picture! Worth framing.
Nov 12, 2012, 04:54 PM
dumbthumb
aleXtino's Avatar
Here´s mine:



@Santiago de Chile, Cerro Alvarado, fling Alula after work.
Nov 13, 2012, 05:19 AM
Registered User
wijwoj's Avatar
Awesome shot aleXtino. I was there a few years ago, though sadly without my Alula. Beautiful city!

Thanks for sharing.

Wij.
Nov 15, 2012, 02:31 PM
DS will change your life
SpeedsterDEN's Avatar
Advance Alula flying
Alula DS. (Do not try this at home) (2 min 33 sec)


Alula, Aerobatic (2 min 23 sec)


Cheers
S
Nov 19, 2012, 02:22 PM
Registered User
I am browsing through this thread and notice some people have moved the servos to the top of the wing. I can see where this would keep the control rods and horns out of ground contact. How necessary is this?
Nov 19, 2012, 02:55 PM
DS will change your life
SpeedsterDEN's Avatar
Quote:
Originally Posted by gkowen
I am browsing through this thread and notice some people have moved the servos to the top of the wing. I can see where this would keep the control rods and horns out of ground contact. How necessary is this?
I Dont think its necessary.'
I have 2 and I realy dont spare them at all, with ds, slopeflying, towing, motor and lift.
Never broke any horn or servos yet.



Alula tribute. (4 min 12 sec)


Regards
S
Nov 19, 2012, 04:20 PM
Registered User
ClayH's Avatar
Quote:
Originally Posted by gkowen
I am browsing through this thread and notice some people have moved the servos to the top of the wing. I can see where this would keep the control rods and horns out of ground contact. How necessary is this?
It's not necessary at all... the tail helps keep the wing off the ground when you land. I've never had a control horn issue either. There may be an aerodynamic advantage to having the linkage on the top though. Its the current trend in DLG construction for those planes that don't use RDS linkages.

Build it stock and fly the heck out of it!

Clay


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