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Caravan 1/2 A Babe_b10
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Caravan 1/2 A Empty Caravan 1/2 A

Post  jmcalata on Fri Apr 29, 2016 5:04 pm

Here is the plan of my new project.

Caravan 1/2 A Carava10

Vintage american motorglider configuration wasalmost like tandem wing with big stab and center of gravity about 70% very stable


Last edited by jmcalata on Fri Apr 29, 2016 5:34 pm; edited 1 time in total
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Caravan 1/2 A Empty Square fuse

Post  jmcalata on Fri Apr 29, 2016 5:21 pm

Building square fuse it´s not complicated, not necessary paper plan copy scale 1:1

Caravan 1/2 A Img_2010
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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  duke.johnson on Fri Apr 29, 2016 11:35 pm

Very cool. I love free flight.
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Post  MauricioB on Fri Apr 29, 2016 11:42 pm

Jose Excellent !, I will be visiting the post sharing your progress! ... A hug, Mauricio Thumbs Up .-
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Post  KariFS on Sat Apr 30, 2016 1:18 am

Nice! I like those pylon style models too. Are you going free flight or radio assist?
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Post  OVERLORD on Sat Apr 30, 2016 1:57 am

Hi José, looking forward to the build. Will you install a timer?
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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  jmcalata on Sat Apr 30, 2016 3:44 am

Thanks for your comments friends.  I Love This Forum!

Yes, I also love very much "free flight" over all categories.  cheers

I think is a pure art. Trimming airplane to circling thermals.   sunny

But today at XXI Century better radio-assisted  RC Plane  because here there are many trees roads and railway close.  Sad

But normally I don´t touch transmiter during the flight but is to bring him or avoid an accident.

I just enjoy seeing flies free lying on the floor.  Popcorn

Caravan 1/2 A Pilota10

We have several vintage motorgliders.

Two super high pylon wing "Timer´s Nightmares" of Frank Ehling

Caravan 1/2 A Timers10

Caravan 1/2 A 62806810

https://www.coxengineforum.com/t1325-timers-nightmare-frank-ehling-1942

The "Frisco Kid" of John Tatone very similar to this Caravan.

Caravan 1/2 A Plan10

Caravan 1/2 A Frf10

https://www.coxengineforum.com/t1374-frisco-kid-john-tatone-1955

And "Engendrus" a personal design home-made with recycled free fligh gliders parts and powered  Small Cox Logo  Tee dee .020.

Caravan 1/2 A Piezas10

Caravan 1/2 A Bueno10

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Post  jmcalata on Sat Apr 30, 2016 4:08 am

I want to buid the Caravan strongest than Frisco and Nightmare, they are very light and low weight for quite weather, and I want the Caravan for fligh in all conditions.  Airplane

If Small Cox Logo Babe Bee .049 .049 it is not enaugh  power to clim higher and fast, I could mount a big engne OK .074 with auxiliar tank into the fuse and Tatone timer to cut fuel to practice vertical takeoff "V-tol".   affraid

Caravan 1/2 A Img-2010

Now assembling the fuselage, note the top and bottom veneer with cross grain to improve the torsional strength and two steel wires 1/32" diameter transmission for rudder and elevator.

Caravan 1/2 A Img-2012


Last edited by jmcalata on Sat Apr 30, 2016 4:12 am; edited 4 times in total (Reason for editing : Language always spelling corrections)
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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  jmcalata on Sun May 01, 2016 4:23 pm

The fuselage and the rudder will be covered with very bright colors

Caravan 1/2 A Img-2013

I have made a modification to the plan and I build the wingtips trapezoidally

Caravan 1/2 A Img_2011

I used wooden harder in the central wing panels as they work to greater bending stresses.


Last edited by jmcalata on Sun May 01, 2016 4:31 pm; edited 1 time in total
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Caravan 1/2 A Empty Dihedral joint

Post  jmcalata on Sun May 01, 2016 4:30 pm

It is very important to make a good joint wing panels, I used dihedral reinforcement ply sheets on all spars.

Caravan 1/2 A P1010813

Caravan 1/2 A P1010910

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Caravan 1/2 A Empty Wing

Post  jmcalata on Mon May 02, 2016 4:21 pm

Gluing dihedral joints

Caravan 1/2 A P1010911

Wing finished ready to cover

Caravan 1/2 A P1010912

Horizontal stabilizer is very easy (no dihedral joints).


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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  jmcalata on Tue May 03, 2016 2:37 am

I use clear oracover at centre wing panel because oracover is strong, and blue clear oralight at tips wing panels.

Caravan 1/2 A Img-2014

Wing weight 125 g (4,41 oz) span 1130 mm (44,5 ") coord 190 mm (7,5 ")


Last edited by jmcalata on Tue May 03, 2016 3:53 pm; edited 1 time in total
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Post  OVERLORD on Tue May 03, 2016 3:33 am

Looks great!!
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Post  fit90 on Tue May 03, 2016 7:41 am

Beautiful work! It looks super. I bet it flies really well.
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Post  pkrankow on Tue May 03, 2016 2:31 pm

dihedral can be a trip to glue right. Looks good. I like the colors.

Phil
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Caravan 1/2 A Empty Horizontal stabilizer

Post  jmcalata on Tue May 03, 2016 2:43 pm

Thank you for your comments. I'm glad you like it, someone knows the name of the designer ???


I choose vivid, bright and colorful and above all visible colors height, flourescent is the most visible.

Caravan 1/2 A Img-2016

High visibility can make the difference between seeing or not seeing it.   RC Plane

Caravan 1/2 A P1011011

Although I have built a larger elevator to desthermalizer tilting 45 degrees with servo.
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Post  jmcalata on Tue May 03, 2016 4:54 pm

Flying surfaces covered

Caravan 1/2 A P1011012

Fixing system of the horizontal stabilizer with rubber bands

Caravan 1/2 A P1011014

Hole between stab and elevator to put rubber bands

Caravan 1/2 A P1011013
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Caravan 1/2 A Empty Babe bee .049

Post  jmcalata on Wed May 04, 2016 8:37 am

I mount this Babe bee .049, it has a shim at botom cylinder, I think to remember it was to modify timming to use larger props ?

Anyone can confirm it to me?

Caravan 1/2 A P1011015

Caravan 1/2 A Img_2012

At first, I mount this plastic yellow 6x3 " ... if don´t pull enough ... I can change by grey 7x3,5" to increase thrust.  Babe Bee

If it is not plenty power ...  I will mount this Tee dee .049

Caravan 1/2 A _5710
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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  jmcalata on Thu May 05, 2016 6:40 am

Finished

Caravan 1/2 A Img_2013

Ready to fly

Caravan 1/2 A Img_2014
Caravan 1/2 A Img_2016
Caravan 1/2 A Img_2015

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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  pkrankow on Thu May 05, 2016 8:30 am

I'm not sure how I feel about the checkerboard fuselage... Then again it is YOUR plane. In any case that is a good looking plane.

Clapping

Nicely done!

Phil
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Post  jmcalata on Thu May 05, 2016 10:36 am

Thank you Phil, may 2016 is the Small Cox Logo Chess month lol!

Caravan 1/2 A P1010814

Check Mate ! Small Cox Logo Reds win !

Caravan 1/2 A 55236910Caravan 1/2 A Imager10

This afternoon I flew it for the first time, I could not wait any longer ...  sleep

Tonight upload Youtube video maiden flight.  lol!  affraid

Caravan 1/2 A P1010913

Sad Goodbye
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Post  fit90 on Thu May 05, 2016 2:40 pm

Looks great! I am looking forward to watching the video.
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Post  jmcalata on Fri May 06, 2016 2:45 am

Here´s the Caravan stressfull maiden flight video.  RC Plane  lol!



I´m still tired .. Warm Warm Warm

JMCalata sunny Spain
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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  OVERLORD on Fri May 06, 2016 3:47 am

That's a fantastic video José: innocent beginning followed by suspense and a happy end ; all with dramatic Wagner!!

Glad you found the plane back.
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Caravan 1/2 A Empty Re: Caravan 1/2 A

Post  Oldenginerod on Fri May 06, 2016 3:54 am

It does teach us a lesson.  Don't assume that you remembered everything.  affraid  Always do a pre-flight check of your controls. Airplane
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