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Author Topic: E36 flight setup  (Read 243 times)
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Paul_BB
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« on: February 12, 2020, 01:19:02 AM »

Hi,

Willing to go further into FF, I would like to dabble in E36. I am ready to build a 36" Sal Tibi Starduster.

Excuse my ignorance, but before pinning down my wing ribs and spars on the building board, I have some concerns about the flight set up.

I've been to a French FF contest last summer and met a gentleman who told me that the flight set up for a E36 model is the following (if my memory serves me right) :
- some wash-in on the right wing panel
- a shim on the right side of the stab planform (right hand glide)
- some down and left thrust for the motor.

This will give right hand power and glide.

Is this set up universal? Are these requirements indisputable?
None of that on Sal Taibi's Starduster plan.

Thanks for your help.

-Paul
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edhardin
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« Reply #1 on: February 12, 2020, 08:45:08 AM »

Paul,
The setup mentioned is for a pylon model with the motor mounted on the fuselage.
The Starduster is a high thrust model with the motor mounted high on the pylon, it
is designed to fly left under power, therefore the wash in or a small piece of trailing
edge stock glued under the left wing near the dihedral break will keep the  wing up
during the climb. Use a shim under the stab at one end of the stab mount to set the
stab angle equal to main wing panel. The model will glide in the direction of the
high side of the stab. Use motor thrust adjustments to get the model climbing high
and to the left.
Ed Hardin
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Paul_BB
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« Reply #2 on: February 13, 2020, 12:58:36 AM »

Thank you very much Ed.

-Paul
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Paul_BB
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« Reply #3 on: February 15, 2020, 03:03:17 AM »

I have another question.

Is 36" the maximum projected wingspan for E36 ?

This is not specified in the FAI Sporting Code:

3.S CLASS F1S SMALL ELECTRIC POWER MODEL AIRCRAFT  “E36”
3.S.1 Definition  Model aircraft which is powered by an electric motor(s) and in which lift is generated by aerodynamic forces acting on surfaces that remain fixed in flight except to dethermalie. 
3.S.2 Characteristic  Nickel Cadmium (NiCad), Nickel Metal Hydrate (NiMH) and Lithium (Li) batteries can be used. Only 2 cell Lithium batteries or up to 6 cell Nickel cells can be used. Other battery related specifications in 3.Q.2 apply. 
Maximum duration of motor run.....................................10 seconds during the regular flights. 
Minimum weight ............................................................120 g 
Maximum wing span .....................................................91.44 cm (36 inches)



Thank you for helping.
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USch
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« Reply #4 on: February 15, 2020, 12:42:49 PM »

...Is 36" the maximum projected wingspan for E36 ?

Yes, 36" or 914mm is the projected, maximum wingspan.

Urs
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Paul_BB
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« Reply #5 on: February 16, 2020, 12:42:10 AM »

Thank you Urs.

-Paul
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