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Spoilerons ? on my Speedo

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Phil May29/02/2012 12:11:10
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1520 forum posts
154 photos

Hi Guys.

Now I've nearly finished a couple of repairs on my speedo after it's not perfect maiden, I'm thinking of setting it up with spoilerons?? to slow down the model on landing.

I am using a Futaba 6EX 2.4 with a 6 channel rx, what and how do I go about doing this?

The Speedo has no rudder so obviously I still need to retain the function of the ailerons.

Please help the dull one dont know with this before I total it on it's next outing crying

Thanks chaps

Phil

Mark J29/02/2012 16:48:46
14 forum posts

I havent had 6EX for a while but if I remember right there's only 3free mixes. So I mixed each aileron and the elevator to the throttle and switched on and off with a switch. I'm sure some will have a nifty setup to do it with 2 mixes.

I find that spoilerons don't so much slow up the landing, but kill the lift from the wing which alows you to lose height without increasing speed.

Mark.

John Privett29/02/2012 22:43:11
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5980 forum posts
239 photos

I fly my Speedo on a Futaba T7C. I use the airbrake function on the T7C, setup with 50% "flap" (ailerons) and 10% elevator. That moves the ailerons up and elevator down when I flick the idle-up (as it would be on a heli) switch.

I don't know if the 6EX also has the airbrake function - I suspect not. I may try something like Mark suggested on mine some time, as it would be better using the throttle stick rather than the "all or nothing" that a switch gives.

Phil May01/03/2012 09:07:51
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1520 forum posts
154 photos

Morning all,

this is how I am getting on.

I have connected ailerons to channels 1 & 6.

Activated the flaperon mix on the radio and set so ailerons go up instead of down, I still have aileron operation when the 'flap' switch is activated on the radio. So all or nothing for now.

I then mixed in the elevator to go down when this switch is activated. (just thought, I forgot to check if I still have elevator control when activated)

The amount of travel I set is yet to be determined - unless I'm advised against I'll start off at John's settings.

 

Am I heading the right way on this one

Thanks all

 

Phil

Edited By Big Phil on 01/03/2012 09:15:47

Steve Houghton 101/03/2012 09:12:53
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1894 forum posts
128 photos

The amount of down elevator Phil is a bit hit & miss and best tested at 3 mistakes high. On my Banana it worked out at about 2mm with full flap, so thats probably a good place to start. I had to make about 3 test flights before I got it right.

stephen wenban12/03/2012 20:43:11
99 forum posts
56 photos

Now mix flap to throttle and you can have full throttle for flying throttle off for spoileron extention.

Phil May12/03/2012 20:47:28
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1520 forum posts
154 photos

Ok, thank you Stephen.

I'll take a look at that

Phil

stephen wenban12/03/2012 22:47:29
99 forum posts
56 photos

I'd better clarify that , I dont know what radio your using but you need

at least 3 programable mixes 1: being flap to elevator (compensation)

2: flap to throttle 3: elevator to throttle a few more mixes need if you actually had flaps as well as just aileron you can get Crow braking ( Butterfly) happening

stephen wenban12/03/2012 22:49:24
99 forum posts
56 photos

your perfect setup would see a high sink rate with a slighlty nose high attitude

Hydeflyer13/02/2013 12:00:17
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38 forum posts
19 photos

Hi,

I know it's nearly a year since this thread was live but I need advice along similar lines.

I've just set up a Fly Fly "Freebird" sloper, which is very similar to the Speedo. It has aileron/elevator control only and I have set up a landing programme on a Tx switch, to give about 6 mm up travel on the ailerons, whilst still retaining normal aileron control. I have also dialled in about 2mm of UP elevator compensation since my experience of spoilers on a thermal glider is that they make the nose pitch down and UP elevator is required to compensate. I haven't flown this model yet and would welcome any comment from others with similar models on the travel and direction of the control surfaces. The ailerons on the Freebird are top hinged so they have more up than down travel, enabling them to act as spoilerons.

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