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  #1  
Old 07-30-2008, 12:01 AM
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AntiGravity AntiGravity is offline
 
Join Date: Dec 2005
Location: Hamilton, New Zealand
Posts: 632
Default Flaps and dual Infinity grips

What have others been doing to wire the flaps with dual infinity stick grips? I could go with the two relays as suggested by Infinity (if I can find suitable ones here), but I had been looking at the "Flap Positioning System" sold by Vans; except that is designed for a single switch and I am not an electronic genius capable of working out how to use two switches [on the grips].
Cheers,
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  #2  
Old 07-30-2008, 01:16 AM
sjjonesnz sjjonesnz is offline
 
Join Date: Mar 2007
Location: Auckland, NZ
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Default

Hey Jeff, I'm not familiar with the infinity grips, but how easy would it be to accidentally deploy the flaps above Vfe with the flap switch on the grip? I'm putting my flap switch on the panel, but in easy reach of the throttle, to avoid exactly that.
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Steve
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Flying RV-7QB/ZK-NVS/Aerosport 0320/Dual AF3500s/PMA8000B/GNS430W/SL30/GTX327/TT ADIP II
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  #3  
Old 07-30-2008, 01:59 AM
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Default Hi Steve

I considered that but decided I'd just be extra careful
I suppose, if you wished, you could wire an airspeed switch into the circuit...
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  #4  
Old 07-30-2008, 06:42 AM
Jon Clements Jon Clements is offline
 
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Location: Richmond, Victoria, Australia.
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Default There's a way around that.....

Jeff / Steve -

You can simply run your flaps through a secondary flap switch on the panel before the wiring to the grip switches. The switch on the panel has Flaps On/Flaps off. You put the switch on as part of your take-off and landing checks. When in cruise Flap switch on panel is set to off so you don't accidentally knock it.

I am installing dual infinity grips however still not convinced that I will put the flap switch on the sticks - final decision yet to be made. One thing I am considering is a starter switch through a relay on the infinity grip (with secondary protection switch as described above). This will allow me to start the donk with one hand on grip and the other on the throttle (more relevant to taildraggers).

Cheers

JON
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  #5  
Old 07-30-2008, 10:54 PM
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Default Clarification

Hi All, maybe I need to clarify my question: I already have the Infinity grips with the momentary toggle switch for the flaps. What I'm after is how to wire them in; I could go with the standard relays as per the Infinity Aerospace schematic on their website, but I wondered if anyone had run through one of the flap positioning system boxes (such as sold by Vans).

Jon: I have starter on my grip and it will be wired to a 'starter enabled' button and annunciator LED on the panel. The rear stick will also have a 'rear stick enabled' switch and annunciator. I don't feel the need to do the same with the flap switch; sure I could perhaps knock it, but the way it is positioned it is only likely to get knocked up rather than down, unless I rest something on top of the stick which I would think unlikely. Ok, never say never and all that, but I don't plan to have a 'flaps enabled' switch as well; I have enough switches already!
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  #6  
Old 07-31-2008, 02:54 PM
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JonathanCook JonathanCook is offline
 
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Default circuit for flaps

take a look at:

http://www.vansairforce.com/communit...83&postcount=5

and

http://www.vansairforce.com/communit...d.php?p=130383
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  #7  
Old 08-02-2008, 04:18 PM
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Danny King Danny King is offline
 
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Location: Southlake, Texas
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Default

Jeff,
Don't sweat VFE and accidental flap extension. I have been flying the Doll for over 1000 hours with the flap control on the Infinity stick, and have never accidentally lowered the flaps. Having the flap control on the stick becomes completely natural after just a few hours, and I have really missed having it there when flying other RV-8s.
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Last edited by Danny King : 08-02-2008 at 04:22 PM.
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  #8  
Old 08-02-2008, 08:54 PM
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Ironflight Ironflight is offline
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Default

I'll second Danny's experience - no problems accidently hitting the switch in the Val, and I really miss having the switch there on other planes - it becomes pretty natural.

Paul
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  #9  
Old 08-02-2008, 10:10 PM
RatMan RatMan is offline
 
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Location: Southern Mississippi
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Default

I'm doing the same thing right now, dual Infinity sticks. I'm using Van's solution. Easy, light and cheap.

Flap control circuit board

I'm using a starter enable switch on the panel for my stick mounted starter button. What type of relay are you using for those?
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  #10  
Old 08-03-2008, 01:34 AM
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AntiGravity AntiGravity is offline
 
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Location: Hamilton, New Zealand
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Default Thanks Guys,

I'll either go with the Vans flap board or use two relays as per the Infinity schematic; not sure I understand the schematic though and will try to find someone to explain it to me. I think it is designed so that if front pilot flaps up and the rear flaps down it won't go poo-poo or something! I just don't know why yet! I've also managed to find a local(-ish) guy that has recently set up a business helping builders with their panels and electrical; very timely for me; I've just initiated contact and I'll see where that goes (if anywhere).
Thanks again
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