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  1. #1

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    35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello Fellows,

    We have a new project with the 35% Cessna 185 from Tmmy.

    Project 35% Cessna 185 Skywagon from Tmmy with Auto Pilot.

    Definition of the project:

    The purpose of this project is to make delivery's off goods with a RC model aircraft and with a ground control station. The aircraft gone have a autopilot with autonomous takeoff and landing system.

    • Scale 1/3
    • Wingspan approx. 4.00 meters (157.5 inches)
    • Wing area 1.097 square meters (1700 square inches)
    • Weight Ready to take off: 21 - 22kg
    • Payload: 20kg
    • Total weight plane + payload: 40 - 45kg
    • Maximum distance between take off place and landing place is 30km

    Requires:
    • Engine: 200 - 220cc gas engine
    • Muffler system
    • 10 JR DS8711 Ultra torque servos: (2 - ailerons, 2 - elevator, 1 - throttle, 1 - choke, 1- rudder, 1 - steering, 2 - flaps)
    • Servo extension wiring
    • PowerBox baselog
    • 8 PowerBox battery 4000 JR
    • 1 PowerBox Sensor
    • Spinner 5" 3 blades
    • 3 Blades prop 32/14 - 34/12
    • Autopilot with maximum distance between take off place and landing place off 30km
    • UAV ground control station
    Regards
    Phil

  2. #2

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    I'm following.
    Saul

  3. #3

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Wellcome Saul
    Regards
    Phil

  4. #4

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    We made our choice for the engine, it will be the Mintor 220cc. Link Mintor 220cc


    SPECIFICATIONS

    Displacement: 220cc

    Bore: 1.77 in

    Stroke: 1.36 in

    RPM Range: 780 – 7000

    RPM Max: 8700

    Carburetor: Walbro

    Engine weight: 10 lbs. 14 oz.

    Recommended propellers: 3 blade 32/14 - 34/12

    Included: spark plug NGK, ignition, linkage carburetor.

    Required: unleaded petrol, oil 100% synthetic 2-stroke, power battery, propeller.

    Warranty: 3 years
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    Regards
    Phil

  5. #5

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Colors of the Cessna 185 without the floats system for our project.
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    Regards
    Phil

  6. #6

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    Upgrade from Tommy. Hi demold the fuselage and tail parts.
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    Regards
    Phil

  7. #7

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    Order the spinner at Tru-Turn :

    3 blade Ultimate shape of 5" with a lightened backplate.
    We don't need a adapter for the Mintor 220cc.
    Tru-Turn made also for free a special cut for our Biela 3 blade prop 32/12.
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    Regards
    Phil

  8. #8

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    We receive today the Mintor 220cc.

    Shipping with UPS send on 13/06/2013.
    Package in perfect condition, the engine and all the parts also.
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    Regards
    Phil

  9. #9

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hi Phil:

    You have an interesting project in front you.
    Your selection of 220cc engine is a good choice considering your pay load.
    I have also used the same propellor and spinner with good results.

    I know you have also followed the other 185 thread, there are a few construction up grades that I would consider when you receive the model.
    I look forward to seeing your progress and results.

    Regards
    Randy

  10. #10

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hi Randy,

    First I wane tank you for your great post about the Cessna 185 because this post has to make possible or project and to make the choose off the plane.

    Normally, Tommy gone make the shipping at 07.08.2013 in the hope that the plane is finish.

    The difficult aspect of this project is to take off on point A, landing on point B and take off again from point B to land again on point A and this full autonomous.
    Regards
    Phil

  11. #11

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    Upgrade from Tommy.

    We receive the 10 JR DS8711 servos. (2 - ailerons, 2 - elevator, 1 - throttle, 1 - choke, 1- rudder, 1 - steering, 2 - flaps)

    Specifications
    JR DS8711 ULTRA TORQUE SERVO

    Size Category: Standard
    Type: Digital
    Application: Ultra torque
    Torque: 347 oz-in @ 4.8V, 403 oz-in @ 6V
    Speed: .19 sec/60° @ 4.8V, .15 sec/60° @ 6V
    Length: 1.58 in
    Width: 0.82 in
    Height: 1.56 in
    Weight: 2.36 oz
    Bushing Or Bearing: Bearing
    Gear Type: Metal
    Gear Material: Metal Alloy
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    Regards
    Phil

  12. #12

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Awesome looking plane , and what a project . Nice work .
    Auto landing system : Does the autopilot has a "ground proximity" sensor , that it knows when to flare the plane ?i am interested to get one too . Kindly share some info on this .
    Thanks
    Ken Tan
    Jakarta


  13. #13

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello Ken,

    We have a sensor "module" onboard.

    The module is an ultrasonic altimeter that provides high resolution altitude information up to an altitude of 16 feet.
    The module allows for autonomous takeoff and landing.

    - Highly accurate above ground up to 15 feet +/- 1”
    - Allows for autonomous takeoff and landing
    - Allows flare

    We have also three dimensional compass that compensates for pitch and roll.
    This accessory is useful when flying in high winds as it gives an accurate direction that the nose of the plane is pointing unlike the GPS heading which is the direction the plane is heading.

    - Provides heading information
    - Provides wind velocity and direction
    - Allows for higher tolerance of high winds
    - Provides dead reckoning capabilities
    - Provides heading information with no speed - used for hovering applications
    - 3-D aircraft capable as it provides accurate heading information even during banked flight - unlike the accelerometer based 3-D compass
    - 2.6 x 3.2 cm
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    Regards
    Phil

  14. #14

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    We receive today the propellers from Biela, 3 blade prop 32/12.

    Package in perfect condition.
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    Regards
    Phil

  15. #15

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    Upgrade from Tommy.
    Today start final paint.
    Shipping for end this week.
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    Regards
    Phil

  16. #16

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    Upgrade from Tommy.
    Shipping begin next week.
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    Regards
    Phil

  17. #17

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hi Phil thanks for the clarification . May I know the brand of the autopilot youre using & where can i buy one ?

    Thanks
    Ken

  18. #18

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello Ken,

    For the moment we have 3 brand for the autopilot and we have not made our choice.
    Regards
    Phil

  19. #19

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hi Phil:

    Just saw all your updates, your model looks great, takes me back to when I went through the same process.
    Your paint design and colour looks great, it will be nice to see it all together.

    Beila do a noice job on the props, you will be happy with it.

    I see Tommy has left the servo opening in the fin for the rudder control. I changed mine but his way is alot easier.
    Nice to see he has gone the way of the split cowling from the factory.

    Keep up the good work..
    Regards
    Randy


  20. #20

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    RE: 35% Cessna 185 Skywagon from Tmmy with Auto Pilot

    Hello,

    Upgrade from Tommy.
    Plane is finished and Shipped.
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    Regards
    Phil

  21. #21

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    Hello,

    Upgrade from Tommy.
    Plane shipped.

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    Regards
    Phil

  22. #22

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    Hello,

    We receive the plane from Tommy yesterday and all OK.
    Regards
    Phil

  23. #23

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    Hello,

    Today first run of the Mintor 220 with propeller from Biela, 3 blade 32/12.
    Idle = 1000 rpm.

    Video

    Regards
    Phil

  24. #24

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    Hi Phil:
    Thank you for your updates and pictures, the model looks great.
    The Mintor engines runs very well.

    What type of exhaust system are you using.
    What type of baffling are you using around the engine.
    Just a thought, since you a are using a 4 cylinder engine such as I did.

    I made my cowl flaps adjustable to allow for added air flowin warmer flying weather.
    They have worked very well.

    Keep us posted on your installation and updates.
    Regards
    Randy
    Last edited by cgcrc; 09-02-2013 at 07:43 AM.

  25. #25

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    Hi Randy,

    I using barrel from Mintor special for the Mintor 220.
    I gone take a picture to see.
    The baffling around the engine, see picture.
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    Regards
    Phil


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