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  1. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    Hi Len, I am looking forward to being behind your Hangar 9 Super Decathlon on tow instead of being in front doing to towing! Jim
  2. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    Next, we located the steel parts bag and identified the straps for the lower strut attachment. A hex nut gets silver soldered onto one end of these (on the finished model, you insert the end of the strut into this strap assembly and screw in the bolt to hold it in place. The nut is permanently...
  3. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    Hardwood blocks and triangle gussets were added to the "spine" under the stab mount platform. The holes in the stab mount platform will be drilled on down through these blocks in an upcoming step. Small wood screws and a dowel pin were used to strengthen this whole assembly. A cone shaped bit in...
  4. JimD

    12 volt Power Source for Field Charging

    If several of you are going to share the system, this three panel setup is the better choice and the better buy. You can use the panels separately or together, but you will need another controller or two if you use them separately. http://t.harborfreight.com/45-watt-solar-panel-kit-68751-8527.html
  5. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    Give us some specs...span, weight, displacement... Do you remember the Duraplane? .40 size glow engine...we towed Multiplex Easy Gliders with one of those.
  6. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    Ahhh...but you guys fly giant scale airplanes...and giant scale sailplanes need giant scale tow planes...do you sense a conspiracy here? :big-grin:
  7. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    The stab mount is made up of four pieces that need to be glued together with care so that the holes in the front middle and back form a straight line. This sets the fin alignment. We drilled shallow holes in the basswood spine and the plywood stab mount to make "epoxy nails." The stab mount was...
  8. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    I've got dibs on him for the next project! I want a 170cc Cessna Bird Dog tow plane! :mario-banana:
  9. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    There are scale sailplane enthusiasts scattered around the USA. Many of us have become semi organized and hold 2-5 day events at least monthly around the country. There is a huge well of talent in this group and guys with the dedication to travel many, many miles to attend events and support...
  10. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    Now to get started on the build. Following the manual, the first steps are construction of stab/elevator and fin/rudder.
  11. JimD

    Sailplane Aviation Concepts 1/3-scale Schweizer SGS-233A

    As soon as we heard the news that this 1/3-scale kit was going to be produced, we got on the waiting list. The force behind this effort is Gunny Bumburs of Aviation Concepts. Other kits include a highly detailed 87.5" span 1/5-scale Fairchild PT-19A and a 1/4-scale Schweizer SGS 233A. Aviation...
  12. JimD

    12 volt Power Source for Field Charging

    Yes, with the sale prices at the time, my whole setup including the tote was about $150. I have since switched to A123 batteries (NiMH at the time of the photo) and now use a pair of the CellPro Multi 4 chargers instead of the Hitec X4 charger. http://www.revolectrix.com/m4_description_tab.htm
  13. JimD

    Electical Connections between Wing and Fuselage

    Bunky, I hear you...that is why the silicon glue was used, we will see how they do over time. Definitely like the taildragger R/C components, will have to get a set in my hands and look at them closer.
  14. JimD

    12 volt Power Source for Field Charging

    We attend a lot of three to five day events and may fly 5-8 hours per day. Most all of the fields do not have 110v A/C available, so you need to bring your own power supply for charging. A new Harbor Freight store open near where I live two years ago and everything was discounted below normal...
  15. JimD

    Electical Connections between Wing and Fuselage

    Man Bunky...what is a guy to do...ARF's so don't have to build the plane...now this, so I don't have to make extension cables! What am I supposed to do all winter (aka building season) while it is too cold to fly? Guess I need to move south and just fly all of the time! :fist_pump:
  16. JimD

    Electical Connections between Wing and Fuselage

    With our giant scale planes, long servo extension cables, and high power servos with their high current demand...how can we make the connection between the wings and fuselage to minimize potential problems. Like most modelers, we are always looking for a better more reliable way to do things...
  17. JimD

    Redundant Receiver Installation

    Doc, As I think back, most in flight failures I have witnessed are in one of two groups. Servo failure is #1 (usually a broken wire), and battery failure is #2 (usually a broken wire or weld of cell interconnection). A distant #3 is poor installation or poor maintenance. Amazing how well our...
  18. JimD

    Redundant Receiver Installation

    Wacobipe...Failure is always a possibility...that said, is there any way of decreasing the possibility of catastrophic failure? After four plus decades of flying R/C, the failures I have witnessed (discounting pilot error) are either some type of power failure or some type of signal reception...
  19. JimD

    Redundant Receiver Installation

    You cannot use a Y harness, because there can be no electrical connection between the two receivers. There are several ways to do this: The easy way is to use the AILVATOR mixing function in your transmitter. Plug one elevator servo into receiver A channel #2 and the other elevator servo into...
  20. JimD

    SOLD! DA 120

    Spats, engine arrived today in pristine condition. The DA-120 was just as you described, thanks for the great deal...I will post pictures of it in its new home (hopefully will be flying by March, 2015).
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