Electra Fly (oz14659)

 

Electra Fly (oz14659) by Dave Milbourn 1991 - plan thumbnail

About this Plan

Precedent Electra Fly. Radio control powered sailplane. Wingspan 2200 mm. For electric with 540 motor.

Direct submission to Outerzone.

Quote: "Hello, This is the plan for the Precedent Electra Fly. An older club member gave the box to me to build the plane. I did not find in your database..."

Update 27/06/2023: Added kit review from Aviation Modeller International, May 1996, thanks to RFJ.

Quote: "Electra Fly. Precedent's strong and stable beginner's model. Reviewed by Joop Wenstedt.

Starting with radio controlled airplanes is these days quite practical with an electric-powered glider. The aircraft is not too fast, very stable and it's also possible to fly the plane without power. When you have gained enough experience it is quite simple to switch over to a faster model with IC engines, without too many adjustments. The Electra Fly by Precedent is a perfect model for beginners, strong and reliable.

With the power system supplied you will have a motor switch system that can be operated with a basic two channel radio outfit. In addition to the electric motor and controller you also get a folding propeller, full wiring loom and a fuse. If you keep to the recommended arrangement, you will find the motor controller switch ready-wired. It would be prudent to enlist the help of another modeller if you use a different system.

The kit of the Electra Fly contains timber of good quality, a clear drawing, instructive manual and hardware for control cables, hinges and rudder linkages. Before commencing construction take the trouble to read the manual carefully, particularly if you choose to use radio and control surface linkages different from those shown.

Construction: No unexpected surprises, this is a balsawood and plywood strip and sheet model. The important thing with the fuselage is to build it straight and true, the tailsurfaces are built onto the fuselage and if these are not square it will affect the stability of the model.

Diagonal bracing is incorporated in the wing design and this produces a very strong, lightweight structure (we have already tested the wing strength in two crashes by a beginner - it holds up well). It is suggested that a cyano glue is used for building the wings as it minimises any weight increase and allows construction to continue at a fast pace. Ensure that the ribs are at the correct angles, joining the wing panels is not difficult if you follow the manual instructions.

Tailsurfaces are constructed from balsawood strip and heat-shrink film is the most suitable material for covering. Pick some good bright, eye catching, colours, the model can get quite high and you want to be able to see it in all light conditions. Keep to the drawings regarding the radio installation unless you have the knowledge to modify.

Flying: The Electra Fly performs very well. First make a few test glides, with no motor running, to check the natural glide pattern and prepare you for flight adjustments. Better do this in calm conditions, the evenings usually offer some still weather. With the batteries charged it's time for the first flight. For that all important test flight you should have an experienced modeller with you and if you are a raw beginner, let the other modeller fly the model for you and get it trimmed for a good flight pattern. Irrespective of how strong the Electra Fly may be, there is always the chance of breaking something if you have a bad landing.

After launch it is important to allow the model to fly well upwind and gain speed before attempting to climb too steeply. When about 150 feet high the model can be turned into a spiralling, climbing pattern and the Electra Fly is gently circled to a height of 900 to 1000 feet. At this height you should switch off the motor and glide over the field, making figure of eight turns and getting used to the handling of the model. Aim to make a landing, but if you get out of position, or at the wrong height, you can switch the motor back on and fly an extra circuit.

Anyone should be able to learn to fly with the Precedent Electra Fly, it is not difficult to build or repair and offers much flying fun. Available from your local model shop, expect to pay about £50.00 for the kit with motor and switch."

Update 25/1/2024: Added kit instructions (also ammendment) and assembly drawings, thanks to Wouter.

Supplementary file notes

Assembly drawings.
Instructions.
Instructions ammendment.
Parts.
Review.

Corrections?

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Electra Fly (oz14659) by Dave Milbourn 1991 - model pic

Datafile:
  • (oz14659)
    Electra Fly
    by Dave Milbourn
    from Precedent
    1991 
    88in span
    Electric Glider R/C Kit
    clean :)
    all formers complete :)
  • Submitted: 27/06/2023
    Filesize: 709KB
    Format: • PDFbitmap
    Credit*: WouterArdinois
    Downloads: 679

Electra Fly (oz14659) by Dave Milbourn 1991 - pic 003.jpg
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Electra Fly (oz14659) by Dave Milbourn 1991 - pic 004.jpg
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Electra Fly (oz14659) by Dave Milbourn 1991 - pic 005.jpg
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User comments

The Electra Fly was my first e-glider, Graupner Speed 600 and a 7 cell nicad. 30 minute flights in still air were a revelation. Happy, simple days :) thanks for posting the plan.
Wee Snifter - 04/07/2023
Does anyone have the instructions for this?
Mike - 09/07/2023
See https://james-planes-and-automobiles.com/2020/06/13/setting-a-precedent-the-electra-fly/
pit - 09/07/2023
Thank you pit :-)
Mike - 10/07/2023
Wouter, thanks for sending in the build instructions, plus the amendment and the assembly drawings. It's very much appreciated. Mike :-)
Mike Burt - 27/01/2024
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Download File(s):
  • Electra Fly (oz14659)
  • Plan File Filesize: 709KB Filename: Electra_Fly_oz14659.pdf
  • Supplement Filesize: 920KB Filename: Electra_Fly_oz14659_assembly_drawings.pdf
  • Supplement Filesize: 667KB Filename: Electra_Fly_oz14659_instructions.pdf
  • Supplement Filesize: 433KB Filename: Electra_Fly_oz14659_instructions_amendment.pdf
  • Supplement Filesize: 877KB Filename: Electra_Fly_oz14659_parts.pdf
  • Supplement Filesize: 963KB Filename: Electra_Fly_oz14659_review.pdf
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Notes

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