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Nov 08, 2014, 03:47 AM
Sokol
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High Wing pusher - Chuck Glider conversion


This is my High Wing pusher - 54" wing span Chuck Glider conversion project.

This is the first concept, as built and flown a year ago.

It is based on the wing taken from the "ULTRA Flyer" foamie , available at HobbyTown for $8.

The 54" wing was reinforced with bamboo skewers and strapping tape.
The wing area was extended with the addition of fixed ailerons (which became true ailerons in the second version , the last picture attached below shows the version No 1.1 , with the ailerons implemented ).

The fuselage was made from 1 1/2" foam , scavenged from packaging material. You may see plenty of use of packing tape and gorilla glue.

The motor is a turnigy 2217-16 , link to 2217-16 , 3S , 20 A , 73g , Kv=1050 RPM / V , turning propellers in sizes from 9x6 to 10x4.7.
The servos are turnigy 9 gram , plastic gear type.
The battery is a 2200 mAh, 3s, 30C, weight =200 g =7.07 oz..

video: https://flic.kr/p/iwWjFM

PS: article continues with Airplane Version No 2 in the next comments page, please see below.

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Last edited by JureZ; Nov 11, 2014 at 05:15 PM. Reason: motor spec
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Nov 08, 2014, 04:26 PM
Sokol
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High Wing Pusher Version No 2


to build the High Wing Pusher Version No 2 ,
I went along with the original chuck glider fuselage, which may be seen buried into the whole fuselage.
The nose had to be extended in order to be able to get a correct center of gravity.

The rudder is driven by a torque rod assembly.

The motor, aileron wing , and servos are the same as in the previous version.

The pictures show , for reference , a fuse and horizontal stabilizer from a brand new Ultra Flyer kit.

and here are some numbers:

AUW : 933g = 32.9 oz

Length = 38.5"
Wing span = 54.0" , wing chord at root = 6.75" ; mean wing chord = 7.5"
Wing area = 405 sq in = 2.81 sq ft
Wing loading = 11.7 oz/ sq ft

CG is located 3.25" from wing leading edge at root.

Vertical distance from top of horizontal stabilizer to wing bottom = 5.5"
Horizontal distance from trailing edge of wing root to root leading edge of h stabilizer = 14.0"
Horizontal stabilizer + elevator inscribed in rectangle of dimensions = 18.0" x 8.0"
Vertical stabilizer + rudder inscribed in rectangle of dimensions = 8.5" x 6.5"

Vertical distance from top of tail boom to motor shaft = 6.25"

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Last edited by JureZ; Mar 22, 2015 at 10:28 AM.
Nov 13, 2014, 04:07 PM
Sokol
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drawings :

sketchup (version is 15.0.09350 , zipped ),
please excuse me , some obvious rounding in the dimensions is needed.

png image can be used as reference
Nov 26, 2014, 08:23 AM
Sokol
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Video using Mobius Hard-Hat-Cam


here is the link to Flickr : video

a few nice passes for the camera , some slow , and others a bit faster.
Last edited by JureZ; Nov 27, 2014 at 12:16 PM.
Dec 24, 2014, 05:13 PM
Sokol
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yet one more video on Dec 24 2014, before the rain.
Windy and cloudy, before noon on the Christmas eve day.

video_link
Oct 22, 2015, 12:04 AM
Sokol
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Version 3 : Shoulder wing , tractor


and here is the third version,

tractor with shoulder wing.

https://flic.kr/p/rUfMFX
Jan 18, 2016, 06:13 PM
Sokol
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Version 4 : Shoulder wing , tractor


and here is version 4

version 3 was hanging from the oak tree for something like 5 months. It was quickly rebuilt with the same electronics (Rx , ESC, Motor, Servos) and a new Ultra Flyer fuselage.

here is the video : https://www.facebook.com/sifon.templ...4192215098768/
Last edited by JureZ; Jan 20, 2016 at 03:59 PM.
Feb 25, 2016, 10:36 AM
Sokol
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and here it is, with the latest changes, new fuse , shoulder wing, as flown by Tim.

He, accomplished gas model plane pilot, has not flown in a few years and got his 72 MHz Futaba TX and Rx set up for the 'new' electric plane.

Way to go Tim!


Knocking the rust off of the thumbs (3 min 25 sec)
Last edited by JureZ; Feb 25, 2016 at 11:20 AM.


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