I don't either but It would be nice if it out performed my trainer - disappointing.
I also had to reinforce the elevator where the tailwheel assembly goes in front of the verticle fin.
Another thing I did was put triangular stock on both sides of the verticle fin. I used plenty of epoxy but the thing felt flimsy. It feels pretty rigid now.

Sounds like maybe you made it too heavy from the stuff you added on ? It should outperform any trainer......

I'm hoping that my engine will get a lot stronger after a few more flights when I can lean it out a little.
I think what I added is less than the difference in weight in the two mounts.

I'm not that familiar with the Irvine 53 so I thought I would check it out to see how it compares to the 46FX. Doesn't look like much more engine when you consider the weight. This may explain why you aren't seeing a noticeable difference in the performance. Maybe it just needs to be run for a while and you might want to look at different props.

Irvine 18.2 oz. W/M, 1.7 BHP, 8.59 cc
46 FX 16.45 oz. W/M, 1.62 BHP, 7.45 cc

BTW, I think it was wise to reinforce the verticle stab. I notice on my son's Ultrastick that the epoxy had given way towards the front so it slips up and down just a bit. Not good. We will have to do this over before the next flight. Not much wood back there to bite into.

I am new to this whole memory TX and flaps. Please explain what you mean by reversing Y ... Thanks.

Yes I knew the HP increase was marginal, but from what I've read here, the 53 is supposed to have much more torque. It does have a much longer stroke. It's my understanding that a longer stroke gives more torque. It's obvious from just looking at the irvine that it looks "taller". I guess the plane is just too darn heavy. I tried it again this evening with a tower muffler and still it doesn't perform as my avistar with a 46fx and tower muffler vertically.

Dart, I had to use the reversing y to connect the flap servo's. The ailerons go on channel 1 and 6 and you enable the flaperon fuction. The Futaba manual with you radio explains this pretty good. The flaps with the Reversing Y go on channel 5, the gear channel. This lets all the servo arms point towards the wingtips like the examples in the Ultra stick instructions. For Crow I put the flaps down with the gear switch and ailerons both go up with the airbrake switch. I am sure there are other ways to do this and get the same results.

OK, I am with you so far, I am just a tick confused as what a reverse Y is. Remember, I am only experienced in 4 channel stuff that had 3-4 servos, without Y's. Thanks for your help. Keith

I am still thinking that the difference in the motors just isn't enough to make that much of a noticeable change in performance. However it shouldn't be any worse on an airplane weighing the same. If you have flaps then you also have two more servos. Likewise, most trainers use one servo for the ailerons where as the Ultrastick calls for two. If you have your Ultrastick set up with flaps you are carrying three more servos than your trainer had. Likewise, were using a 600 mah 4 cell NiCd on your trainer? How much does your 1400 mah battery weigh in comparison? Are you using a bigger tank? Add to this aluminum dowels, tristock for the VS added weight of the engine and you can see how the weight adds up over the trainer.

Thr Irvine spins an APC 12-6 or 13-4 prop. That's more than a 46fx (12-4 if you're lucky). The Irvine has more torque, maybe you justdon't have it tuned right since it's new. I have one on a Magic Extra 300 and it pulls it vertical with ease. It's a little lighter than the US40 but still, you should see more than the 46fx. Also the Irvine is not any heavier than the 46fx. Irvine claims 400 grams which is 14.28 ounces. I assume no muffler. The 46FX is 16 ounces with the muffler. So it's equal in weight. A longer stroke gives more torque, especially at lower rpms. BTW I have the US40 with a 46FX and I use an APC 11.5-4 prop.

What prop are you running on the Irvine?

Joe

Anyway, back to my post.

OK, I am with you so far, I am just a tick confused as what a reverse Y is. Remember, I am only experienced in 4 channel stuff that had 3-4 servos, without Y's. Thanks for your help. Keith

info from the website on the weight difference with the muffler. Then again, you have one of these and I don;t. Just passing along what I found by checking ti out. Could be bad info, but this is what I got from the site.

Irvine 18.2 oz. W/M, 1.7 BHP, 8.59 cc
46 FX 16.45 oz. W/M, 1.62 BHP, 7.45 cc

I read, and still dont find reversed Y ? Please set me straight. I am still mis understanding this.[&o]

You don't need a reversing "Y'. What it does is when two servo's are
hooked together....(y-ed)....one servo works in one direction, and the
other one in the other direction.

That's what it says in the directions, if you want the servos mounted
with the arms sticking out to the sides, like pictured in the instructions,
you will need to use the reversing "Y".

However you can mount the servo arms this way, and save the expence
of the reversing "Y" wire connecter. Mount the flap linkage straigt, like this....
instead of to the side. I have done this on 3 Ultras....it works fine.

You will still need a regular "Y" connector to hook the flap servos
together.

Dave.

Where on the plane is that photo? I am a lil confused. Sorry guys.

Keith, I'm sorry for not helping. I didn't use a reversing Y and have never used one. I mounted each flap on separate channels with an 8 channel Rx. I didn't use a Y on the ailerons either. I wanted to be able to use all the features when I set it up. If you use a Y on the ailerons then you won't be able to do all the stuff this airplane can do such as the crow setting talked about in the book. This requires having both ailerons go up at the same time while the flaps both go down. You can also interconnect the flaps to the ailerons which extends the ailerons to the flaps so they work with the ailerons increasing the spin speed of the airplane, but then you didn't want all this stuff so Y will work. Just know it will limit what you can do later on as you may one day want to try different things. This can be a very versatile airplane. All based on what you want.

Well, I have a 7 channel RX. There we go again. LOL Thats that. I guess I will not be able to have the crow feature then...
When I get time, I will dig out the plane directions. I am just swamped here and leave out of town again for almost all month...
I would indeed like to use crow and double the ailerons to work with the flaps.... but I would need to buy an 8 channel and set it up like you said.

Dart....

....you can have crow,and quad flaps with the 6xas, but not quad ailerons,
with th RD127DF reciever.

Dave.

Thats fine, I really want the crow the more I think about it. At first I did not, but then its tempting. I just have to try and figure all these servos and where they go(RX #) and how to make it all. If I do...... It will be a miracle.

Hi try servocity for recvers and servos. I use Hightech recevers and they work with futaba transmitters no problem.

[link=http://www.servocity.com/html/8-ch_supreme_fm_rx.html]hitech supreme 8 channel[/link]


[link=http://www.servocity.com/html/8-ch_super-slim_fm_rx.html]8 channel superslim[/link]

I just went out and bought all the electronics for it. I am sticking with the 7 channel. Thanks though. Too many projects of mine stop because of too many choices... LOL

And I only count 7 channels.. hee hee whats up with that on that Hitec

If you need all 8 ports for servos...you use a Ycable to plug the battery lead into the receiver. The battery can be plugged into any slot on the receiver as the Positive and negative are on a common bus in the receiver.

copy

Ditto on the Y for the battery lead and one of the servo channels. I thought you would want this stuff once you thought about it. Better to set it up so you can do more, and then hold back until you are ready, rather than setting it up plain Jane and wishing you had done so differently. You could have still changed it, but it sure is easier and less of a hassle to do all this stuff up front. You think you are confused now, try putting all this stuff together and not label the wires. LOL