Digital Flap Indicator for C172M

Digital Flap Indicator for C172M

Has anyone had any experience with the digital flap indicator made by Visual Instruments as a replacement for the clunky, none-too-reliable analog flap inidcator on older Cessnas such as my C172M? Does it work well? Is the installation really as easy as advertised?

Cornelius Ulman
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Re: Digital Flap Indicator for C172M

Is the unreliability from the indicator or the "clunky-old" flap position transmitter?  (great adjective, "clunky-old")

My point is that if it's the position transmitter, I really can't see the benefit of a digital reading of a poor transmitter signal.  You will only know the position inaccuracy to greater resolution. 

If you can confirm it's from the indicator than an upgrade makes sense.  If it's the transmitter I would look at an upgrade for it.  The upgrade would have to be compatible with the indicator. 

The cessna sevice manual discribes how to adjust the position indication by adjusting a rod connected to the tranmitter.

There may be a built in circuit filter or delay to compensate for noise on the signal during movement. (This is conjecture on my part.)

I own a C172M 1973.  I generally time how long it takes for 10% of movement and then check. I hold the flap switch down for the count and then check the lagging indicator.

Time how long it takes to run the flaps from 0 to 40 percent.  Then divide by 4 and thats how long to hold the switch down for each 10% of position.  I never thought it practical to have to know the position to a very close accuracy.

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Re: Digital Flap Indicator for C172M

The Digital indicator is GREAT and comes with a new sender- don't hesitate...! Get it done

C172K
Ken

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Re: Digital Flap Indicator for C172M

Great product - I installed one in Jan this year.

Tony
C-GICE

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Re: Digital Flap Indicator for C172M

Flap indicators with sending units?  My flap indicator works as well today as it did in 1963 when the plane was built.......1 notch per 10 deg of flaps and that stick is mighty big to miss sitting on the floor there........

One of the reasons I wanted a 63 173 was that it was th elast year of manual flaps and first year of the 2300 gross.  Pretty good deal there.

Bruce

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Re: Digital Flap Indicator for C172M

I also liked the big flap handle - definate and you knew exactly where it was,
and I like the newer detent switches which are easier and require less pilot attention-distraction but pretty exact as to the position - you know where your flaps are.
One of the biggest drawbacks to the 172K was the flaps-switch-indicator it was ALWAYS a guessing game and you here how pilots overcome it, by counting etc., but on short final I like to limit the quantity of distractions and improve the pilot knowledge/feedback, and the digital flap indicator system does this very well - easy to read, easy to scan, precise.  When on short final (or a balked landing and a go around) and it gets real busy, and full of other air traffic its great to not have to spend a lot of time on the flap position, and right about then it's also way up there on the priority list just exactly where those flaps are, it's a bad time to not know or to start counting- cause you have other things to do rather immediately.

It's one of the simplest, best, safety improvements You can make.

Ken   

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Re: Digital Flap Indicator for C172M

I own a 1960 C210. I am interested in hearing from anyone who has bought and installed any of the after market flap position systems on this model.

I understand the installation is an easy fix? Do you have to pull new wires to make it work or can the old wiring support the new system? Is there a calibration problem after install??

Best source and price??

  Thanks

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Re: Digital Flap Indicator for C172M

I just installed one of these and it is great.  My mechanic sort of regards it as a vanity gauge and kids me that all real pilots always know where there flaps are at any given moment.  Anyway, I like it, it seems to work well and give me balls-on accuracy as opposed to my old, original flap meter.

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Re: Digital Flap Indicator for C172M

Ken Wrote:
-------------------------------------------------------
> The Digital indicator is GREAT and comes with a
> new sender- don't hesitate...! Get it done
>
> C172K
> Ken

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Re: Digital Flap Indicator for C172M

As previously mentioned,new sender (read moisture proof), new indicator and wiring is plug and play! Too easy! Shopping offshore best bang for the buck is Spruce.
Leigh

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