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Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

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Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

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Old 06-23-2007, 11:16 PM
  #1  
ironfistx
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Default Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

So I ordered what I thought was the 4 channel Parkflyer Cessna 182 off of eBay. When it came, it was made by Skyartec, but from looking at it I assumed that it was the same plane as the Parkflyer and Art-Tech model. The only difference I could see initially was the ID number on the plane was different (N9528 vs. N9258).

So we're building it, and it comes time to install the horiztonal stab. The first thing I noticed is that the horizontal stab is shaped differently from that of the Parkflyer version. It's basically the same thing, except there's a notch in the front. I assume this is to help secure it into place. We had to make the cut in the fuselage above where the horizontal stab goes in order to get it in, same as with the Parkflyer and Art-Tech.

Ok, now here's where I'm concerned. If you look at the ParkFlyer version, you can see that the slot for the horizontal stab is shaped like a spoon at the end. This allows the elevator to go up and down (pic borrowed from the review on this site):



The cutout for the elevator on my plane does not look that way. It only has room for the elevator to go down (you can't see that part in this pic, but you can see that there is NO room for the elevator to go up):



So I'm wondering, a) is this just horrible design? b) should I manually remove some of the styrofoam so there elevator has room to go up? c) does this plane have very sensitive up elevator and so they did this to compensate?

Skyartec's website is under construction, so I can't find any info there.

I was assuming that if I needed replacement parts I could just order them from Parkflyer, but seeing these differences makes me think maybe this isn't the case.

So does anyone have the scoop on Skyartec? Does anyone have any advice about what to do with this elevator?

Thanks.

edit - as we're building this plane we just realized that it has a steerable nose wheel! The instructions that came with it were horrible. There is no mention at all of how to even install the wheels (you have to take the cowl off to install the front wheel and use extra pieces that were in a bag, altho this is not mentioned at all in the instructions). It came with an extra control arm and the rudder servo has two arms, so we realized maybe the other one is to control the front wheel! So that's another marked difference between this one and the Parkflyer/Art-Tech. I'll try to get some pics and possibly a vid before we fly it tomorrow.
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Old 06-24-2007, 11:35 PM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

those planes suck. REALLY bad.

id say just notch it out.
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Old 06-25-2007, 04:59 PM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

All of them suck? Or the skyartec ones suck extra bad?

Why?
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Old 07-01-2007, 01:11 PM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

especially those. if anything make sure its the art tech. id still reccomend help setting up an arf. like a slow stick or something
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Old 07-03-2007, 04:41 PM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

ironfistx,
I would just cut away the styro a little so you can get elevator movement, its very strange as it looks exactly like the art tech version.
You might want to do some of the strengthning mods as explained in the art tech cessna thread then it should fly the same as the art tech one which flies like a dream if its set up properly.
Good luck with your maiden
Rich
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Old 07-06-2007, 11:50 PM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*


ORIGINAL: ILoveMinis

especially those. if anything make sure its the art tech. id still reccomend help setting up an arf. like a slow stick or something
Any particular reason?


We ended up cutting away some styrofoam to allow the elevators to move up more.

We've gotten this plane assembled and made a few flights. Here's a post/review I made on another forum:

Alright, I got to fly it a few times now.

We set the trim before flight so that they looked level. I was concerned about the fact that the elevators don't go up very much, but that would prove to not be an issue.

So for my first flight, it was hand launched from full throttle. If you push the throttle trim all the way forward you can get a little extra boost from the motor, which is needed because this motor is kind of weak.

Anyway, the plane took off, but was banking to the right quite a bit. I gave some left aileron to compensate until I could get enough altitude to adjust the trim. In the end, I had to give full left aileron trim just to get it to fly level.

The plane seems very light in the air. I'm constantly making tiny corrections so it doesn't veer (or blow) off path. It seems to even have trouble flying level. I would be flying level and then randomly it banks 20 degrees to one side. I guess this is to be expected with such a light plane (correct me if I'm wrong, more advanced guys).

I did a couple circles around the field and then decided to try a landing on the grass. I got fairly low, cut the motor, and glided it in. I think if the motor is cut you have a reduced chance of breaking your props on impact. It touched down, but almost immediately flipped over onto its back (remember, I was in grass). When I walked over to the plane, it was fine. The prop was intact, the vertical stabilizer was ok (I was worried since the plane flipped), and everything seemed to work alright. Time for flight #2, which was basically the same thing. And then flight #3. And 4 Each flight was like 2-3 minutes.

I ended up having to give the plane down elevator trim to keep it flying level. The fact that the elevators don't go up very far doesn't really seem to be an issue. The plane has no problem climbing when I want it to, altho I haven't tried a loop yet. I believe I will go for an Immelman before I try a loop

I took it out again a few days later and flew around for 4-5 minutes before crashing The plane lost a lot of altitude during a turn and I couldn't pull up in time. The damage was only a broken prop, which is easy enough to replace.

I did a roll during this flight, too (intentionally ). It rolled pretty quickly.
It was during this flight that I noticed that the motor is kind of weak (I'm assuming... I really don't have much to compare it with). Flying into a 5-7mph wind made the plane seem like it was moving really slowly, even at full throttle. During my flights I keep the throttle between 80-100%... any less doesn't seem to be "enough." With the wind, of course, it goes very quickly. Turns into the wind seem to happen in place. Turns with the wind are nice and smooth.

Oh, here is my RC flying experience:

When I was in 6th-7th grade I went flying with my neighbors twice. They let me do a couple turns in their gas engine planes. I don't know what kind they were, but these people were pretty hardcore into RC flying and had a bunch of big planes. That's all I remember. They also had a 4-channel RC sim for computer which I spent hours playing.

Fast forward to now (I'm 26). I have an hour or two on the FMS sim that came with my plane, and then the flights I told you about above. My dad is a commercial airline pilot and I've understood how planes work since I was like 5 For this reason, I never wanted to start on anything less than a 4-channel plane. I would feel handicapped without ailerons.

My dad, the pilot, has maybe an hour on the FMS sim and has crashed our plane twice with each flight lasting under 30 seconds I told him he needs to spend more time on the sim and practice moving the stick "on a dime." He'll get it, tho. He's over thinking it, and he's used to airliners that don't respond as quickly as RC Planes

That's my review so far. Let me know if you have any questions.

Oh, I have a question for the more advanced guys: I seem to be a "right stick" pilot. When I turn, I don't think I use enough rudder... if I get into a problem and I need to turn out, I bank sharply and then give up elevator to turn... it's not the smoothest turn in the world, but it's quick. I can do a nice, smooth, rudder turn if I'm thinking about it before hand and concentrating on it. I think this is from years of playing flight sims with a joystick and not have rudder controls, so to turn I'd just bank and pull up

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Old 07-16-2007, 12:22 AM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

Had a big crash today. [X(]

Damage:

- Wing broken where the aileron is (so like the right 25% of the wing)
- Right tip of wing broken off
- The aft portion of the center of the wing (where the screws hold it into the fuselage) is in 3 pieces
- Horizontal stabilizer broken in half
- Vertical stabilizer loose
- Antenna ripped out of receiver
- Propeller broken into two pieces (not a problem because we just got a 6 pack of them)
- Cowl cracked and dented in a few places (repaired with reinforced packaging tape)
- Plastic cover of motor cracked

I had had 5 or 6 crashes/landings before with no more damage than a broken prop or bent landing gear shaft, but this was our first real crash with significant damage.

The weather was perfect with a slight breeze and a few clouds in the sky. My dad hand launched the plane and I got it up to a decent altitude. I did a few passes, even performed a roll and a loop (my first loop), got the plane going nice and straight downwind at 50% throttle, and passed the transmitter to my dad (the pilot in real life). He was doing pretty well, but on one of his passes when the plane was coming toward him he got confused with left/right aileron (cuz when it's coming toward you right is left and left is right), and the plane hit the ground and then bounced back into the air in three pieces... heh... oops. We found all the parts, including the control arm that had popped off of the right aileron servo.

I got some "foam safe CA glue" but it doesn't seem to work well. It is supposed to set in 10-25 seconds but after almost an hour it doesn't seem to have formed a very good bond.

The local hobby store doesn't sell clevises or control arms that are small enough to fit this plane. Where do you guys get yours? We broke a pin on one of the clevises so we replaced it with a safety pin. Kind of cheap, but it works

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Old 07-16-2007, 06:16 AM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

My Cessna has ended like this a few times.

I just glued it back together with epoxy and added a few Carbon Fibre rods for strength. You should also tape up the wings and the front of the fuslage for strength...see the http://www.rcuniverse.com/forum/m_2199644/tm.htm thread for all the clues.

You also may find it easier to go in one hole on the elevator and rudder.
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Old 07-29-2007, 11:50 PM
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Default RE: Q. about elevators for Skyartec / Art-tech / Parkflyer Cessna 182 (pics) *help*

Got everything fixed, had a great time flying this evening, and even met two other electric pilots who were at the field with their planes tonight!

Thanks for the help!
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