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~~Sig Kadet Brotherhood~~.

Old 07-03-2014, 10:16 AM
  #1301  
TomCrump
 
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Originally Posted by FlyerInOKC
I love the name of your airplane Tom! Maybe that is the problem with the onboard glow batteries, they are having a "Senior Moment"?
Thanks !

Lately, my life has been one big senior moment. I thought the Kadet's name was appropriate.
Old 07-03-2014, 11:04 AM
  #1302  
FlyerInOKC
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Dave, I noticed you had the cat's permission but you didn't say anything about the wife's permission. I take it goes along the same lines as at my place. One word from me and my wife does as she pleases!
Old 07-03-2014, 03:20 PM
  #1303  
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Originally Posted by FlyerInOKC
Dave, I noticed you had the cat's permission but you didn't say anything about the wife's permission. I take it goes along the same lines as at my place. One word from me and my wife does as she pleases!
cat ... wife ... horses ... all the same thing really. The true hierarchy around here is quite simple - - - they all say, I do.

doesn't matter who "they" are, really.

Geez, you're lucky - you get to say one word before they ignore you.

The good news is, I still just grab a plane (or 3) and head for the field when the mood strikes. ... and I usually leave the cell phone at home.
Old 07-03-2014, 06:09 PM
  #1304  
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um, yeah, I got nottink. I say, they do, whatever they were doing before I say. Of course, the also found out the hard way that if they don't do as I say, things go missing. .
Old 07-04-2014, 01:07 PM
  #1305  
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I have to admit, the LT-40 does make a good 3 channel plane too. My aileron came undone from the RX, so I had to land with rudder only. I made it look pretty good too. In front of spectators too.
Old 07-04-2014, 01:12 PM
  #1306  
rrengineer
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I see someone flying a Senorita on an OS FS 26. I have two FS 20 engines that run great. How does the plane fly on the 26 size four stroke. Do you think it would fly as well on a 20 four stroke?
Old 07-04-2014, 09:20 PM
  #1307  
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Originally Posted by acdii
I have to admit, the LT-40 does make a good 3 channel plane too. My aileron came undone from the RX, so I had to land with rudder only. I made it look pretty good too. In front of spectators too.
Y'know, every Kadet I've ever seen was a good 3-channel plane. Shoot, my original 1973 Kadet was designed as 3-channel and her last flight was just this past December. I've flown several flights with my new Mk-II as a 3-channel, just to see how she'd do, and she did just fine. Yeah, Kadets are great birds!!

Oooooooo, I had an aileron come loose on my CG Sr. Falcon several years ago. Took a lot of time and loooooooong turns to get her lined up to land. No fun at all with that one and 3 channels.
Old 07-05-2014, 07:30 AM
  #1308  
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The tricky part is that the LT has a sticky rudder and is setup with long throws, so my turns were a little on the steep side. I am just grateful they were in the neutral position when they came unplugged. My LT can turn inside itself, 10 foot loops is what it looks like, It will also to outside loops, though those are rather large so I make sure I am high enough, but my favorite one is my ribbon loop, If I had smoke on it they would look just like those ribbon stickers you see for breast cancer or some other cause.
Old 07-05-2014, 08:28 PM
  #1309  
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Originally Posted by skylark-flier
Geez, I feel sooooooooo sorry for all you guys.



I know who's boss in this house, I am!!!!!!



And I've got the cat's permission to say so.

I don't own a cat.......nuff said.

On another note:

Got a wing!!
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Old 07-05-2014, 09:40 PM
  #1310  
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Originally Posted by acdii
The tricky part is that the LT has a sticky rudder and is setup with long throws, so my turns were a little on the steep side. I am just grateful they were in the neutral position when they came unplugged. My LT can turn inside itself, 10 foot loops is what it looks like, It will also to outside loops, though those are rather large so I make sure I am high enough, but my favorite one is my ribbon loop, If I had smoke on it they would look just like those ribbon stickers you see for breast cancer or some other cause.
Took off one time with my Kadet and seconds after liftoff realized I had no ailerons. Said something like "Crap...got no ailerons!". Everybody is yelling advice, "Just land straight ahead!!!" "throttle back" "it's your failsafe". I said....."relax, I got this".... Came back around and made a normal landing.

If I had not said something no one would have ever known I plugged the servo wire in backwards cause the Kadet flies perfectly fine without ailerons.

Our other favorite thing to do with the Kadet is get it up in the wind. Out here where we fly there are few obstructions and we get nice straight consistent winds about mid morning on some days. It is a standing challenge when the wind comes up to try to land moving backwards. Outside of the little electric profiles, my Kadet is the only plane to accomplish it

http://youtu.be/7DHRD6qmT5o
Old 07-06-2014, 07:01 PM
  #1311  
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Still need to make the ailerons and I have started to look at different color schemes.
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Old 07-10-2014, 05:39 AM
  #1312  
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Got ailerons
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Old 07-10-2014, 06:08 AM
  #1313  
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Interesting way of mounting them. I do believe I recognize those horns you used.
Old 07-10-2014, 10:37 AM
  #1314  
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So you are using the control horns as pivots? Interesting concept.
Old 07-10-2014, 10:54 AM
  #1315  
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The metal horns shouldn't have any problem handling the load and the nylon inserts would prevent any metal to metal problems if you were using a 72 Mhz radio,
Old 07-10-2014, 11:15 AM
  #1316  
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Thanks guys, it seems to be a good system so far.

The other thing it does for me is gives me the ability to raise and lower the aileron if I feel I need to adjust the gap between the wing and leading edge of the aileron. I set it for now at what I think should be a good spacing so air can flow over the top of the aileron at high angles of attack in slow flight. I might be day dreaming but we are shooting for the ability to pull off one of those impressive short landings you see STOL planes do on U-Tube.
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Old 07-10-2014, 11:57 AM
  #1317  
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I'm impressed with those flaps. Should be a fun plane.
Old 07-11-2014, 11:54 AM
  #1318  
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The flaperons are a big part of the experiment so I have to be sure I do a good job on this part of the build. And of course there are going to be setbacks. Like this one:

I built these nifty internal linkages to run the ailerons and still keep the servos weight in the center. Looks like it should work right? Wrong!! After hooking up servos to the new ailerons I find there is too much play in my system and I am going to have to scrap those and regroup.
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Last edited by BigTeeEldorado; 07-11-2014 at 11:56 AM.
Old 07-11-2014, 12:04 PM
  #1319  
FlyerInOKC
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Could you tell where the slop was occurring?
Old 07-11-2014, 04:27 PM
  #1320  
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I have slop on my 4*120 ailerons, the links are only 4" long, turns out the slop is in the servos. Might want to check from there.
Old 07-11-2014, 05:41 PM
  #1321  
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Very interesting ailerons, but I'm not sure how you're connecting to the ailerons to drive them, would you elaborate, maybe a quick drawing?
Old 07-11-2014, 09:41 PM
  #1322  
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Originally Posted by FlyerInOKC
Could you tell where the slop was occurring?
I could see the "slop" at the bearing surface of the horizontal rod that connected the two 4-40 size horns that came out of the collars. lets see if I can do a better job of explaining. In the pictures you see a 4-40 screw in each of the collars at either end of the horizontal rod. After I attached linkage to those 4-40 screws which were about an 1-1/4 long, the leverage created at the collar was enough to make the horizontal rod jamb against the side of the nylon tubing I used as the bearing surface. It was a good fit but not really snug enough because it moved laterally. Which allowed about a half inch of free movement at the end of the lever where the linkage to the aileron was attached. The slop was enough that I could move the ailerons almost 50% of their travel before the servo would move. Some "give" in the linkage was expected but this was way too much and I need that linkage to be solid in order to trust adjustments when I fly this thing the first time. Adding to the problem is the lever on the aileron is real short.

Long story short there were just too many opportunities for slop in the system and it had to go. I thought about ny-rod but there is actually a lot of slop in that as well and I would have had to plumb it through an already sheeted wing with a very tight curve.. My only choice was to go ahead and move the servos out under the wing which gave me a straight shot with simple linkage hookups. I'll do some pics tomorrow and show how I have the linkage setup.
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Old 07-12-2014, 02:03 AM
  #1323  
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I posted on the other Brotherhood thread already.

If anyone is interested, I have designed both a Hog Bipe and Kadet Sportster, both foam, with 50% and 100% versions electric powered.

If there is interest, I would be happy to post the plans.

Marty
Old 07-12-2014, 10:22 AM
  #1324  
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Here are a couple pictures of the current setup. There is still some slop in the system because of flex in the pushrod, nylon servo arms and control horns. As you can see the linkage goes between the wing and the aileron which leaves a very short arm for the aileron horn and is part of the "slop" problem but I can't connect at the bottom of the aileron and I really don't want to go out the top of the wing with the linkage. So this is the current preferred setup.
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Old 07-12-2014, 02:21 PM
  #1325  
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Originally Posted by BigTeeEldorado
Here are a couple pictures of the current setup. There is still some slop in the system because of flex in the pushrod, nylon servo arms and control horns. As you can see the linkage goes between the wing and the aileron which leaves a very short arm for the aileron horn and is part of the "slop" problem but I can't connect at the bottom of the aileron and I really don't want to go out the top of the wing with the linkage. So this is the current preferred setup.
How much 'slop' are you talking about? More than 10% of the flaperon chord when measured at the trailing edge? I had similar worries about the friese ailerons and flaps on my Seniorita, but then I measured the acceptable 'slop' limits on my bigs and scales those numbers down. I was well withing tolerance, provided my ailerons are balanced correctly. That's where it took me three tries to build a decent set of ailerons and flaps to match. Weight distribution is a little bit harder to figure out when your chord is only
1 1/4 inch.

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