RV7ForMe

[RV7ForMe]

Originally Posted by kentlik

I like the asymmetrical as well.

Although I would like to know its overall length, it seems long but just another guy's opinion... maybe a coin for perspective.

It about 1,75in long. And you are probably right, may be a bit large. It feels good in the hand. I will probably wait until I have a panel to decide on the final dimension.

[Boyd Birchler]

I wonder if anyone has taken the method used for some car window motors. On Toyota's the window motor shuts off when the running amperage goes up,IE when the window gets to the end of it's travel, in that instant the amperage jumps. The switch has a sensor that sees that increase and cuts the power.

[RV7ForMe]

Originally Posted by Boyd Birchler

I wonder if anyone has taken the method used for some car window motors. On Toyota's the window motor shuts off when the running amperage goes up,IE when the window gets to the end of it's travel, in that instant the amperage jumps. The switch has a sensor that sees that increase and cuts the power.

Not sure this would this would work as good here. The drag and therefore the work the motor has to do increases with the angle of flaps deployed. In any case this would only be useful for full up and full down.

In this case the motor has an internal stop so it doesn't use any power once it hits that stop.

[RV7ForMe]

OMG! It has been forever since I updated this thread. When I started reading about people building airplanes the phrase "life got in the way" came up frequently. I often wondered what could be so important that building one of these birds would take 10 years. I have to admit it just happens, even to me. I put my own bird on hold. Gave away parts that I had to rebuild later. And 1 year later I caught up to the point where I left of.

So here is the second RV7 rudder of my building career. Man I have kicked my self over and over again because like any good builder I saw this as an opportunity to do better than the first time around. Guess what? I failed at that. Number one was much better and I have been really hating that fact. the leading edge bend just didn't turn out as nicely as I had envisioned. I will have to live with that.



I also have to get creative since I am running low on space in the barn...

I set out to work on the small stuff first. Flaps and Ailerons!

[RV7ForMe]

On a more positive note after I finished agonizing about the rudder I moved on to the ailerons.

Yeah! they are really easy to build and came out super straight with not twist! Very happy with that.

[RV7ForMe]

I just unpacked the Left Wing Spar for the first time. WOW they are beautiful just sitting there in gold!

I have to move a lot of things around to make this fit. Looks like my priming booth is going to have go elsewhere.

[RV7ForMe]

Following up on post from last year. I finished the Flap / Wig Wag Controller.

It is much nicer now. It took forever but I feel like it is ready to test in the real thing. So far it has been my daily passenger in the car. Pretty good way to check GPS speeds and such. YES, YES, I know I wish my car had wings too.

Since I wasn't sure what switch I like best I designed it in a way that it can connect to both a rotary switch or a Momentary UP/DWN switch. Works great.

I also have integrated panel position lights. That will give me an visible position of the Flap position selected. That is especially useful for the Mom Sw.

I wish my airplane was flying so I could try this out today... Guess I'll have to find a curious fellow RV flyer.

What does it do?
-Reads GPS grounds Speed.
-Over set speed the landing lights will WIG WAG
-Under set speed the landing lights will go steady ON
-Over max flap speed the deploying flaps will not work, but the will come up if you choose so
-Under max flap speed deploying flaps will work normally
-If GPS signal is faulty, unstable or not available the systems deactivates and Landing lights go steady on and flap deployment is available at all speeds
-It will read the flap position and give it out in a format that the G3X system will read, eliminating the need for another pos sensor.
(I assume it works on Dynon as well but I have only had a G3X to test)

Specs:
-System uses 0,09A at 13.5V = 1.2W
-System weighs 0.25lbs / 113g
-2x DSBUB 25 Pin (I used 2 pins per wire for the high Power items)
-There is a hookup for an external GPS antenna in case I want to mount this under the floor board next to the flap motor. So that should not be an issue.
-I will need a box but my "el cheapo" china 3d printer doesn't print any nice quality stuff. It's really just good for prototyping. ideas?

[vlittle]

Nicely done. I love this stuff. Building airplanes is just an excuse for developing new avionics widgets.

V

[MCA]

I get that some people in this community want to roll their own which is great. If you don't want to roll your own, all the features you've listed and more are available in the VP-X.

[RV7ForMe]

Originally Posted by vlittle

Nicely done. I love this stuff. Building airplanes is just an excuse for developing new avionics widgets.

V

Thanks Vern. It was a lot of fun and I learned a ton!