Yeah, I figured that moving to a higher cap lipo would just be counter productive to 3D.

Thanks for the input.

Mark

I flew electric for two years before I got my first slimer. I fly both now with a great deal of joy! I'm flying Ultimate FX, Furious, and the Charger CR-1 in electric. I started glow flying with the World Models Sky Raider (low Wing), then a Twist, and now a Harrier .46. I'd say that for those of us not used to noise and the larger size of the glow jobs that those are the intimidating things about the first glow solo. I was shaking like a leaf with the first Raider flight. Of course, it was much faster than my electrics and it won't do 3D (its a pattern trainer). I began to relax after I realized it handled very much like my Mini Funtana. During my first flight after I got rid of the gitters I was doing large loops, fairly slow rolls and Cuban 8s. I was Jazzed. Since I lean towards 3D, I swapped the Raider with a friend for a Twist. Began doing 3D stuff and liked it just as much as electric. After torturing the Twist for a couple of months, I retired it in favor of the Harrier .46. I'm a few months into the Harrier now and have kept it off the ground except for landings. It's way to pretty to fly like a Shocky.

Most of my stick time now goes to the CR-1. Then the Harrier. These two planes are so much fun to fly that the Ultimate and the Furious are gathering dust. Check out the CR-1 from chargerrc.com. You can't beat it and they'll sell you one for $25.00. At that price, I've got a couple of spares still in the box. By the way, I'm using Hacker 20-20L for all my 10-15 oz foamies. small e-Flight outrunners don't come close to this new motor. The E-flight 450 will match the Hacker's performance but it weighs a full ounce more and these little foamies will come out pretty nose heavy with the 450. For the extra 10 bucks there's no comparison.

Randy

This thing is a fun little foamie. I had to modify mine to mount the battery aft in order to balance it with the AON motor I am using. I have a review I need to send in to AON with this motor in an Edge and now this plane. Its a "400" sized motor I am using with the gear box.

Enough talking I will post the hovering down on the deck (or should I say water) I took at the beach Sunday. Flies pretty cool but not as good as my 29% ultimate. If you want to go with an in runner do yourself a favor and get the AON or park 400 sized in runner. Ill show the pics of the mods I did. I used some hot melt glue which I know made it a little heavier but it has held up awesome.

The thing lands so easy. I just harrier it in everytime. I have mine balanced at 4". I need to change the setup for the rudder to be pull-pull. I am also thinking longer servo arms for the elevator and or switching to an HS 56 like I have on the ailerons.

Does not come close to myTBM monte but its a cool mix of foamie and built up style plane.

Oh yeah I will probably cut some more cooling holes in the cowl as I noticed it gets quite hot.

Now what would be really cool would be a much larger version of this plane. This is like a modern mini Byron kit....lol.

Down on the beach sorta.

Do you have any pics of your modifications? I am on my second ultimate. I really like it cause it can take a beating and that is why I got another one. Anyways, there is an issue with knife edge flight as it really tries to snap out of it. I believe it is because the vertical wing supports/sfg's are too close to the wing tips and I thought about drilling holes in them to make it lighter and diminish the effect of the sfg's so that the fuse is supporting the plane during knife edge. I know this will make the rudder less effective but that would at least allow the airplane to knife edge. What do you think?

Hey Guys,

I've had my FX for a month now. My CG is set to 4' from the LG of the top wing. Everytime I hover, my fx tends to want to nose over. I find that I have to constantly apply "UP" elevator to keep the hover.

It also has the tendancy to torque roll quite easily. My hovers end up looking like a dance rolling and rocking left and right while trying to catch it from nosing over.

Is this normal for this plane or is it my thumbs?

Thanks guys.

Mark.

Mine really liked to torgue roll too until I got rid of the 12x6 prop. If you go with a prop with less pitch then that will get rid of the tendancy to roll. I think it will also help out with it wanting to nose over. Get a prop with a pitch of something like a 4.7, that is what I use and it hovers great. Try that out and let us know if that helps.

I'll try that. Right now I have the 12x6 APC prop on it. By chance, does yours tend to nose over as well? I found that the only way to correct it is to fly with the belly cocked little bit up to the sky.

Thanks again.

Mark

Mine doesn't appear to have the problem of nosing over. You might check the thrust line of your engine. The ultimate should have a slightly right and upwards thrust line. If it doesn't it should. Also, make sure that the engine is mounted nice and strong so that it doesn't have the ability to move when the throttle is applied. The ultimate should be a rock solid hover'er (if thats really a word ). One of my favorite things to do with this bird is to hover it a little high and then tail slide it backwards and do a rudder touch and then rocket it skyward while rolling. It will stay nose up in a hover while falling backwards slowly. I would try a new prop and check your thrust line but don't make any drastic changes until you try the new prop. I think that the 12x6 prop not only makes it torque roll hard but it may also be the reason it is pushing forward in a hover.

Also, do you fly it indoor or outdoor?

I flew a mates after helping him build it. flys great though his had fairly marginal power. hover but no puunch out. fun little plane though. Just wanted to say that a skyraider WILL 3D. i had one straight after my trainer. maxed out throws, slightly aft CG, i could hover it all day, until the day the accident happend. may it RIP. also for the record i was only running a 46LA with a 12 x 4 Ram

How much power do you need to hover with the 400 with a 1320 battery pack? I am thinking of getting this for my birthday on wednesday.

Thanks

LeBlanc

I actually don't know what the proper thrust should be. I left it the way it came out of the box. The only other thing I could think of is that mine is powered with a 450 outrunner. Not sure if it's causing the excessive torque rolling.

I fly outdoor and maybe the wind is kicking the tail to nose over. Maybe when I fly with the nose cocked a little into the wind and me compensating for the roll, the rocking motion starts to occur.

I could hover it fine, it's just annoying having to constantly compensate the hover with half right aileron deflection and full up elevator. The plane just seems to twitch into the torque roll rather than a smooth rolling motion. I constantly jab the sticks to give a little right roll to correct it.

I guess no one else has this problem?

Mark

When you are hovering into the wind it will want to nose into the wind. Any airplane will do that. As for the torque, a lower pitch prop will help that dramatically no matter what motor you are using. The rocking motion, I assume you are talking about wing rocking, is caused by the extra weight of the motor and some torque (I am going to take the time to explane it). Try moving the cg back just a TINY bit at a time to compensate for the high overall weight of the plane. Once again, I still think if you just change the prop that you will love the change in the way the plane will fly and may not have to make any other changes. I had some of these problems until I changed the prop and now it is like a dream. Also, just remember, even with a 1 mph breeze, you have to fly the plane differently that if you were inside. Hope all that helps.

Thanks for the info. I originally had a 11x8 on this plane and the torque was much worse. The 12x6 prop actually made a big difference but it's still twitchy on the torque rolling. I will try the lower pitch prop as soon as I fix the firewall....

Had an accident. Tried to take off at a rough soccer field. The plane nosed over at take off, prop hit the dirt at full speed and broke the stick mount right out of the firewall. A little surgery should fix it.

As far as the weight issue, I didn't even think about that. My 450 Outrunner is an 1/2 ounce heavier than the 400. And I'm not using a mini receiver, just my Hitec-8 channel receiver. Maybe the extra weight might account for the rocking motion.

I'll keep you guys posted once I get a new stick mount. Thanks again.

Mark

Yea, keep us up to date. I will take some measurements off of the stick mount on mine and maybe some pics so you can make sure you get it back in correctly. I will try to have it by tomorrow.

Thanks Ion.... but you don't have to go through the trouble. I appreciate it.

I took the rest of the stick mount embedded behind the firewall out. I was planning on inserting another stick in the same position since the indentation in the fuse for the stick mount seems to be cocked for proper thrust.

Do you think I should try to experiment with a little up/down thrust to fix the "Nosing Over" issue. If so, should I add some "Up" thrust with the stick cocked a little upward?

I've never dealt with thrust adjustments, so if I got it backwards... let me know. I just want to fix the rocking motion and the nosing over issue.

Thanks again.

Mark

A little up thrust might help but I think your best bet for getting rid of the rocking is to move the cg back just a little until you like it. This may also help with the nosing over since the weight will be further back and will make the plane want to hang on the prop. Wing rocking is cause by one wing stalling and when the plane rolls the stalled wing downward it creates lifts and the opposite wing stalls. This tendancy becomes greater with weight as the wings will have a higher stall speed. By moving the cg back you, in a sense, make the wing more effective at higher angles of attack. The change of prop should help this as it will generate more prop wash to keep the wings stable during high aoa maneuvers. It will also help lessen the torque rolling which I beleive may also cause the plane to want to nose over. Since you have to fight the torque with such a large amount of aileron you are changing the lift that each wing generates. This will make the wing rocking more pronounce and, I believe can cause the plane to want to nose over. When hovering with a large amount of aileron deflection, one wing is, in a sense, generating lift in the opposite direction as the other. I think that when you take this into consideration with things like p-effect, that this can cause the negitive lift generated on one wing to push the nose over. I tried to keep my explanation short and simple so I hope that helps. Also, remember when flying outside that you are a lot more likely to see wing rocking as wind is never at a exact constant rate. The slight variations in wind speed will cause the wings to be balanced one second then stall the next. With the right prop and cg you should be able to almost, if not totally, eliminate these problems, once you finish making the adjustments. Just remember to make one change at a time cause one change will have numerous effects.

Wow.... thanks Ion. I think I got what you're trying to point out for the most part. Some of it was a little over my head, but very informative.
I've tried moving the CG in the past, but I think I did it a little too much. It was pretty uncontrollable. But I'll try it again as soon as I get the plane back up and running.

If that doesn't help, I'll try the 12x4.5 prop. It might be a while till I work on it. Between school and work, I'll have to make time for it.
I'll give you guys an update as soon as I try it.
Thanks again.

Mark

We'll be waiting for the update.

What prop do you guys recommend for the outrunner 400 740kv?

So that I can hover easily without having too much tendacy to roll

Thanks

LeBlanc

The recommended prop for that engine, which is what I use, is an 11 x 4.7

Hey Guys,

So I remounted the motor and pushed the CG back today. Still has the tendancy to twitch or whip around on the torque roll, but it's not as strong. Nosing over is still an issue.

Tomorrow, I'll go ahead and buy the lower pitch prop. I'll post the results tomorrow night. Thanks again.

Mark

Hey guys,

I have just finished my ultimate, and it's looking pretty good. I have put a 10x4.7 prop and it's hovering at half throttle. Pretty good remembering that have built this whole this with 6 min epoxy. I'm going to try an 11x4.7 on it, and we'll see.

I am wondering, I have a e-flite 10 AMP esc on it and I am just wondering, would I be pushing it a little by putting the 11x4.7 prop on it?

Can somebody test on a meter to see how much it's pulling with the 11x4.7?
I have the park 400 outrunner 740kv and am running a 1320TP battery 12-15C 3C.

This help would be greatly appreciated!

Thanks

LeBlanc