Zeta FX-61 FPV Flying Wing EPO Airplane 1550mm / 61 inch - Page 8 - RC Groups
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Feb 22, 2013, 12:25 PM
Registered User
Quote:
Originally Posted by HappySundays
Yes I plan to replace mine with better and larger MG servos as my models are usually stabilised and so the servos are moving all the time. Probably Corona DS329MG which are much larger but look pretty tough.
Interested to note that the underside of the wing is completely flat.

I'll be putting it together tomorrow
Are you planning on flying it with OpenAero32? If so Id be interested to see your parameters once you get it running.
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Feb 22, 2013, 05:44 PM
OpenAeroVTOL developer
HappySundays's Avatar
Quick build update. Corona DS329MG servos carefully grafted in.
You can see the size difference with the original 9g servos.
Feb 22, 2013, 05:49 PM
UAV Integrations
HappySundays, can your software work with/change servo update rates?

For example, if I wanted to use Futaba tail servos (some of which have a refresh rate of 333hz, as opposed to standard at 50hz)
Feb 22, 2013, 06:44 PM
OpenAeroVTOL developer
HappySundays's Avatar
Build update 2:

Wings glued on:
- Sand the fiberglass spar to get better adhesion
- Supplied glue dries fast so not much time to get teh whole together. Runny too.
- Use tape to hold edges tightly together
- The model didn't look that big in the box but now...

Electrics:
- Swapped "agricultural" Deans connector with XT-60
- Added HK 5V 5A BESC for servos
- Moved ferrites closer to noise sources

Prop:
- For those who asked, the prop is 9 x 6 but the total space between the fins is 11 " so a 10" prop would just fit.
Last edited by HappySundays; Feb 22, 2013 at 07:37 PM. Reason: Added prop pic
Feb 22, 2013, 06:45 PM
OpenAeroVTOL developer
HappySundays's Avatar
Quote:
Originally Posted by philthyy
HappySundays, can your software work with/change servo update rates?
For example, if I wanted to use Futaba tail servos (some of which have a refresh rate of 333hz, as opposed to standard at 50hz)
Only in camstab-only mode. OpenAero32 can do that though. See the OpenAero32 thread.
Feb 22, 2013, 07:45 PM
Un Registered User
Doodie's Avatar
Quote:
Originally Posted by HappySundays
Build update 2:

Wings glued on:
- Sand the fiberglass spar to get better adhesion
- Supplied glue dries fast so not much time to get teh whole together. Runny too.
- Use tape to hold edges tightly together
- The model didn't look that big in the box but now...

Electrics:
- Swapped "agricultural" Deans connector with XT-60
- Added HK 5V 5A BESC for servos
- Moved ferrites closer to noise sources

Prop:
- For those who asked, the prop is 9 x 6 but the total space between the fins is 11 " so a 10" prop would just fit.
Nice mate. Looks like you can put a 10 or 10.5 on it without any further modifications to the airframe.
Feb 22, 2013, 08:00 PM
Rick
hammer833's Avatar
Looking good Happy. Can't wait to see some flight video. I'm ordering one on payday.

Rick
Feb 22, 2013, 08:36 PM
OpenAeroVTOL developer
HappySundays's Avatar
Build update 3:

Fins glued on:
This is tricky as the glue sets really fast.
This glue is awesome - not the normal HK EPO glue. I want some.
Anyway by the time you've put glue on all the faces on the body half (no need to put any glue on the fin) it's starting to go off and drags as you slide it on.
Definitely practise how it tlits to slide on then tilts down to sink into the wing.
Fits beautifully when on.

Stickers attached:
OK *this* is painfully difficult!
Despite first appearances, the stickers are very thin and very sticky.
Best to start from the elevon then steer it towards the nose.
Use a rag or bundle of paper to smooth it out as you go.
Last edited by HappySundays; Feb 22, 2013 at 09:20 PM.
Feb 22, 2013, 10:55 PM
OpenAeroVTOL developer
HappySundays's Avatar
Looks like I have to buy some new batteries for this model.
Tomorrow I will spend a while working out exactly how much weight I need in the forward battery position then choose one from the local warehouse.
I was hoping to use a 3S 3300maH pack as I have a few of those but the CG is nowhere near the right spot.

Anyway, enough for today - the servos are hooked up and glued in.
Just the electricals to go now.
Feb 23, 2013, 01:58 AM
Un Registered User
Doodie's Avatar
Quote:
Originally Posted by HappySundays
Looks like I have to buy some new batteries for this model.
Tomorrow I will spend a while working out exactly how much weight I need in the forward battery position then choose one from the local warehouse.
I was hoping to use a 3S 3300maH pack as I have a few of those but the CG is nowhere near the right spot.

Anyway, enough for today - the servos are hooked up and glued in.
Just the electricals to go now.
I can't believe you don't do everything right away and get that bird in the air. I would do my best to get it flying same day as I get it lol cant wait til mine comes
Feb 23, 2013, 02:21 AM
OpenAeroVTOL developer
HappySundays's Avatar
Quote:
Originally Posted by Doodie
I can't believe you don't do everything right away and get that bird in the air. I would do my best to get it flying same day as I get it lol cant wait til mine comes
Trust me, I'm fairly impatient, but I'm also very careful
It's also been raining all day

Last picture - showing the 2mm solid carbon-fiber rod linkage I've just made up.
Yes, it's not adjustable but it's much stiffer than the piano wire one that comes with the kit.
I just set it up, then cyno them when perfectly aligned.
Feb 23, 2013, 02:36 AM
Un Registered User
Doodie's Avatar
Quote:
Originally Posted by HappySundays
Trust me, I'm fairly impatient, but I'm also very careful
It's also been raining all day

Last picture - showing the 2mm solid carbon-fiber rod linkage I've just made up.
Yes, it's not adjustable but it's much stiffer than the piano wire one that comes with the kit.
I just set it up, then cyno them when perfectly aligned.
Looks great! It's also raining here in BC, i'd still send it up in a little rain xD
Feb 23, 2013, 08:20 AM
Registered User
jaas75's Avatar
happysunshine the CG is not even near with 3300 batts, but thats counting FPV equipment or you just trying without FPV equipment?
Feb 23, 2013, 09:40 AM
Suspended Account
Ran across this fairly new video this morning on YouTube. Looks like it can float along fairly slow and stable.

phantom fx61 (1 min 21 sec)
Feb 23, 2013, 01:26 PM
Registered User
Quote:
Originally Posted by HappySundays
Looks like I have to buy some new batteries for this model.
Tomorrow I will spend a while working out exactly how much weight I need in the forward battery position then choose one from the local warehouse.
I was hoping to use a 3S 3300maH pack as I have a few of those but the CG is nowhere near the right spot.

Anyway, enough for today - the servos are hooked up and glued in.
Just the electricals to go now.
Do you need a bigger battery or a smaller one?


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