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CA Model Andes biplane

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Old 11-04-2018, 02:01 PM
  #26  
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Just need the parts.
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Old 11-04-2018, 02:03 PM
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[QUOTE=swk550;12476005]

Originally Posted by Ricardo M. View Post
4940g with which batteries?

I’m using GForce 5000mah 30c batteries with a weight of 1123g
Great, thanks.
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Old 11-04-2018, 02:14 PM
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ltc
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HI again
A couple more questions if you don’t mind ...

Did you reinforce the landing gear “saddle” in the fuse it did it look ok as built (I fly off grass only so it’s something I worry about)

I assume there are no incidence adjusters anywhere
Did you measure the incidences ?

Thanks again
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Old 11-04-2018, 02:54 PM
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Originally Posted by ltc View Post
HI again
A couple more questions if you don’t mind ...

Did you reinforce the landing gear “saddle” in the fuse it did it look ok as built (I fly off grass only so it’s something I worry about)

I assume there are no incidence adjusters anywhere
Did you measure the incidences ?

Thanks again
The CA recommended top wing is + 0.5, bottom wing is 0.0 degree. They are set by the molded in fuse wing saddle and were perfect. I used the stab adjusters to set the stabs at the recommended 0.0 deg incidence. At these settings the molded n fuse nose down thrust was perfect at -1.5 deg. Recommended CG is set at 145mm behind the leading edge. I too fly off grass so the landing gear CF reinforcement is cheap insurance. All planes tend to need reinforcement of LG blocks when flying off of grass.
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Old 11-04-2018, 04:01 PM
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Originally Posted by swk550 View Post
The CA recommended top wing is + 0.5, bottom wing is 0.0 degree. They are set by the molded in fuse wing saddle and were perfect. I used the stab adjusters to set the stabs at the recommended 0.0 deg incidence. At these settings the molded n fuse nose down thrust was perfect at -1.5 deg. Recommended CG is set at 145mm behind the leading edge. I too fly off grass so the landing gear CF reinforcement is cheap insurance. All planes tend to need reinforcement of LG blocks when flying off of grass.
Just wondering, why are the top and bottom wing incidences different?

I would think the same would be better. Being different, they would be fighting against each other?
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Old 11-17-2018, 05:30 AM
  #31  
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Default Maiden Flight



Battery at 145mm CG location


Stab adjuster blocks


Before maiden
My maiden flight was not too successful, but I got her down safely. I had some set up issues. First the CG was too far back set around 145mm from the lower wing front of the belly pan. I since moved it to around 130mm. Second the stab adjuster blocks screws stripped out and the plane was not stable in pitch. The plane also was not holding in rudder. My rudder servo had some gear slop. After two tests, I packed it up and came home.
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Old 11-17-2018, 05:47 AM
  #32  
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Default Very successful second maiden



I'm a happy camper


135mm CG with battery pack at front of the battery tray


Front of battery tray with GForce batteries


Ground handeling and tracking good with Falcon Allure "longer contra" gear
I have replaced the stab adjusters with the F3A Unlimited Gator units. They have the same mounting screw locations. I've replaced the rudder servo with a JR DS8411HV unit. I've moved the battery to the front of the battery tray. I didn't need to but I installed JR DS3421 elevator servos. Wow what a difference. Only five clicks of aileron trim. With the new rudder servo, I used 2" spacing for the rudder cables. Max rudder deflection is still too high at approx. 27 degree. The Andes has a slight pull to canopy on down lines. A 3% down line mix fixed that. Stall turns are effortless. Snaps are clean, fast and come out on heading. So far no knife edge mix needed.
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Old 11-17-2018, 05:56 AM
  #33  
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CONGRATLATIONS! I felt certain you would succeed. The Falcon "longer contra" gear put the finishing touch on your Andes biplane. Very nice indeed!
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Old 11-17-2018, 01:37 PM
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Congratulations on the maiden
A few questions

The original stab adjusters (red) look like they’re 3D printed? Is this correct? Are those the units that ship with the plane? If 3D printed that might explain the stripped threads.

What were you using for elevator servos before the 3421? Was the slop in pitch on your maiden due to the stab adjuster or servo?

The assembled plane looks beautiful...enjoy it in the best of health !
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Old 11-18-2018, 04:51 AM
  #35  
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Originally Posted by ltc View Post
Congratulations on the maiden
A few questions

The original stab adjusters (red) look like they’re 3D printed? Is this correct? Are those the units that ship with the plane? If 3D printed that might explain the stripped threads.

What were you using for elevator servos before the 3421? Was the slop in pitch on your maiden due to the stab adjuster or servo?

The assembled plane looks beautiful...enjoy it in the best of health !
The stab adjusters came with the kit. Don’t know how they are made. Just to clarify, the adjuster screws did not back out on the maiden. I found the screw threads stripped in the red block and would not tighten down. The left fuse side on the stab tube sleeve was loose allowing the stab to flex up and down. I simply bled thin CA into the fuse side to reattach. The stab is still square with the vertical fin. Also there was no hard wood blocks in the stab for the hold down screws to the end of the stab tubes. Easy fix to add 0.75” square 1/8” hard ply plates flush with the balsa stab sheeting. I just need to find matching color covering patches. I removed my Futaba bls173 stab servos so I could install them in my Alchemy. The jr servos center equally well.

i’ve got now nine flights on the plane. Minor stab adjustments and 3% down line mix is good. Next I will check if I need to shim a wing side. Bottom wing looks parallel to the stab. Top wing is off slightly but only maybe a 1/4” at the tip.
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Old 11-18-2018, 10:52 AM
  #36  
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Congrts on the maiden. Andes looks geat in that yellow scheme. Couple of questions, final weight and performance with Hacker C54.

Thanks.

Last edited by Ricardo M.; 11-18-2018 at 04:53 PM.
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Old 11-18-2018, 11:47 AM
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Default Andes performance with Hacker C54 Acro motor

Originally Posted by Ricardo M. View Post
Congrts on the maiden. Andes looks geat in that yellow scheme. Couple of cuestions, final weight and performance with Hacker C54.

Thanks.
Weight is 4940g with GForce or Zippy Compact 5000mah batteries. The Hacker C54 Acro pulls strong with my Falcon 20.5x14.5 CF prop. The Andes can accelerate in up lines when entering from horizontal at 50% throttle. The plane flies with good authority at approx 40% throttle. Right now I have a linear curve. I plan to somewhat flatten throttle at 50% stick to help me keep mid speeds constant. Power consumption has been 2800 to 3200mah for the advanced pattern. Average flight time is around 5-3/4 minutes. At the current CG, no need for knife edge mixing. Rudder is still a bit sensitive though. The bottom of the wings show good contrast. Love the base yellow color scheme.
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Old 11-18-2018, 04:51 PM
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Thats gives me very useful information, thanks for shear.
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Old 01-06-2019, 05:36 AM
  #39  
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What are you guys using for Wing bags for your Andes wings?
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Old 01-06-2019, 06:29 AM
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I’m still looking for long skinny wing bags. Hope someone has a solution.
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Old 01-06-2019, 06:40 AM
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2 possible solutions...

1. Trace the wings and send the templates to Revoc. They will make a set of bags for you (I e done this several times for planes that weren’t on their catalog list). All my planes have Revoc bags, very happy with them.

2. Contact Donatas Pauzoulis. https://www.pauzuolis-rc.com/
He has a person who made a very unique wing bag for the Mryia 2m biplane. A single bag with both wings side by side. Very well designed and made. Very unique design. The Andes wings might fitorvperhaps he can have the size changed.
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Old 01-06-2019, 04:26 PM
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Originally Posted by ltc View Post

2 possible solutions...

1. Trace the wings and send the templates to Revoc. They will make a set of bags for you (I e done this several times for planes that weren’t on their catalog list). All my planes have Revoc bags, very happy with them.

2. Contact Donatas Pauzoulis. https://www.pauzuolis-rc.com/
He has a person who made a very unique wing bag for the Mryia 2m biplane. A single bag with both wings side by side. Very well designed and made. Very unique design. The Andes wings might fitorvperhaps he can have the size changed.
NICE.......

Are they expensive ?
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Old 01-07-2019, 05:00 AM
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Originally Posted by MAVROS View Post
NICE.......

Are they expensive ?
130 euro for the wing bag and 40 euro to ship it to the USA.
About the same as you would expect to pay for a set of Revoc bags.
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Old 01-28-2019, 06:05 AM
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Anyone know what size the wing screws are. I would like to get more in case I lose a couple
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Old 02-04-2019, 07:15 PM
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1/4" x 20.
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Old 02-05-2019, 06:30 AM
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Thumbs up

Originally Posted by TonyF View Post
1/4" x 20.

thanks
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Old 02-08-2019, 04:45 AM
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For those of you needing a wing bag for your Andes. Check out Ace Wing Carrier.
RC Wing Bags by Ace Wing Carrier-Custom, Quality made RC Wing Bags and Accessories when you want to protect your Aircraft from damage buy American made, www.AceWingCarrier.com.

they made a great custom bag for my Andes wings!!
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Old 02-08-2019, 05:08 PM
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Rob: Are both wings in the single bag, or did you get two bags? I've been emailing back and forth with ACE Wing Carrier for about a week to get bags for my Eternity. It has been tough trying to get a quote.

Mike
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Old 02-08-2019, 09:16 PM
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Both wings are in the single bag and it fits great!!
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Old 03-18-2019, 01:22 PM
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I have an Andes on the way. I would like to get the wing covers ordered prior to arrival but need the correct dimensions for the wings. I would really appreciate it if someone could supply me with dimensions needed to order the wings covers. I will be ordering from Ace Wing Covers.
Thanks for the Help!
Larry Kauffman
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