RE: Seagull's "Dual Ace"

RE: Seagull's "Dual Ace"
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RE: Seagull's "Dual Ace" - 3/23/2008 1:43:18 PM

Capt. Crackup

Posts: 215
Joined: 2/11/2002
From: St. Marys, GA, USA
Status: offline

I have test flown my Dual Ace and now have about 25-30 flights on it. It flies great. I have had 2 engine outs so far. Compared to a C 160 Transall, the loss of a engine is a easy affair. The shimming of the motor mounts as described earlier was obviously the right thing to do. I also put a thin washer under the front wing bolt on the right wing and another on the aft bolt of the left. As a result all controll serfaces are neutral when trimmed. I am flying it on twin Thunder Tiger 46s. Also this plane has a much better "Glide" than a Twinstar. Like the TwinStar, the Ace responds very well to flaperons. I also believe it lands easier than the twinstar. All said and done, I am very happy with it.
Skip D

< Message edited by Capt. Crackup -- 3/25/2008 11:37:27 AM >

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There's only one thing cooler than Radio Controlled Aircraft,,,,,,,,,,that's the guys that fly em!!
Capt. Crackup

(in reply to rastus21)

Post #: 701

RE: Seagull's "Dual Ace" - 4/25/2008 10:15:19 PM

HellcatAce

Posts: 176
Joined: 9/27/2005
From: Castaic, CA, USA
Status: offline

I have a Duel Ace that has 5 flights on it. I usually go mod crazy but decided to keep this one pretty much stock, except for replacing the foam tires with some good ol Dubros. I am using OS 52 fs engines and find that it has tons of power. I balanced it at the recommended (per manual) point and it seems to fly just fine. Any reason why some of you guys moved the CG back? Perhaps just to make it more aerobatic? It takes off and lands like a ****cat especially since I'm more used to WWII fighters and it loops and rolls very nicely and inverted flight is pretty solid too. I am even using stock tanks on this one which is usually a no no for me. Seems ARF tanks are made to split, but so far so good.

I am using this as a twin trainer and am having a blast so far. I have a Futaba 9C radio and have the engines set on 2 different channels with mixing so I can simulate an engine out without actually killing the right engine by just flipping a switch, then it goes to idle. Of course, I can always really kill the left engine with the throttle cut if I get really ballsy.

I have yet to try my kill testing but after I get a couple more flights on her, I'm ready to begin my true training. The engines are destined for a Top Flite DC-3 which will of course be built as a C-47. I find most of my flights with these engines turning 11x7 props are at maybe half throttle and all I need to do for a loop from level flight is throttle up some and take her over the top. My bud who has the Twinstar even thinks the DA flies better than his trainer, and with a more "scale" look.

Overall, I'm very happy with this plane and would suggest it to anyone looking to get some twin time in.

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Fly scale planes scale...really, it looks better.

(in reply to Capt. Crackup)

Post #: 702

RE: Seagull's "Dual Ace" - 4/25/2008 10:25:10 PM

Bo Ingram

Posts: 322
Joined: 5/22/2006
From: Stockbridge, GA, USA
Status: offline

Hellcat....

I have been flying twins for a long time and have over 100 flights on my Dual Ace.

At the manual's CG, the plane is very nose heavy and comes in too nose down on landings. Moving the CG to what others are using, makes the plane much more manageable at low speeds, high alpha.

At the stated CG, the plane tends to run out of elevator on low rates when it gets slow.

Try it, I think you'll like it.

Bo

(in reply to HellcatAce)

Post #: 703

RE: Seagull's "Dual Ace" - 4/26/2008 6:36:36 PM

kiosk

Posts: 287
Joined: 2/12/2008
From: , FL, USA
Status: online

Hey guys, I have a Dual Ace. My second actually, I totaled the first one on maiden after engine quit, like an idiot i tried to go around with a dead engine, when applied full throttle on one engine at low airspeed it spun right into the ground hard, so lesson learned there.

Anyways, my second one now and I love it, about 20 flights, I love this thing and would like to know the following

1. anyone attempt to install retracts on this?
2. anyone try a single, larger fuel tank on the fuse? vs nacelles?

I have OS 55 AX on mine and is pretty quick.....

(in reply to Bo Ingram)

Post #: 704

RE: Seagull's "Dual Ace" - 4/26/2008 6:43:18 PM

Bo Ingram

Posts: 322
Joined: 5/22/2006
From: Stockbridge, GA, USA
Status: offline

...there's a retract thread several pages back....Bo

(in reply to kiosk)

Post #: 705

RE: Seagull's "Dual Ace" - 5/3/2008 2:25:52 AM

JoeMamma

Posts: 168
Joined: 11/15/2002
From: Lenox Township, MI, USA
Status: offline

Hi Everybody,

Just spent over two hours reading through this thread......thanks for all of the really great info. !

Mine's been sitting new in the box since Sept. '06. Every time I walk by it, it say's build me, build me.

My first step was to fire up and adjust a pair of well run OS 52 4-strokes. Got 'em dialed in perfect on 11x8's.

I didn't like the short 8 ounce fuel tanks. I couldn't get the clunks to drop to the bottom of the tanks. Had the exact same problem with the TwinStar. I already had one new Sullivan 10 ounce tank to try out. Got it to fit the Dual Ace without a lot of mods. Now I've got to get another 10 ouncer.

I planned on starting out the CG at about 100mm.

Wish me luck !

Joe M.

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Joe Mamma

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Post #: 706

RE: Seagull's "Dual Ace" - 5/11/2008 11:03:14 AM

pc55bomber

Posts: 179
Joined: 8/23/2005
From: Newcastle, AUSTRALIA
Status: offline

Hi Guys
Finally maidened my DA yesterday and it flew great. (Loops, rolls, inverted all good)
Setup:
2 x Enya 53 Four strokers (detuned, peak RPM 10900) (over 10 years old and still pumpin'... sweet)
16% coolpower 5% nitro with muffler pressure.
10x7 3 bladed MA props
Dubro 3 blade spinners.
Only mod's was to double up the former where the front wheel attaches, as our strip is grass, a pull/pull system on the rudder,
dual battery redundancy (2 switch's, 2 x 4.8 Nicad packs) mounted in fus right up front, CG 100mm approx, changed wheels to dubro 3" mains 2.5" for the front.
No lead required to balance.
No other changes at all, only required a small amount of down elevator trim.

Great plane, only the nacelles are really poorly made and won't fit, so after much frustration and just before I binned them I did the following:

If you heat the nacelles with your heat gun they will become very pliable and you can remold them to fit much better. They have to be hot, won't crack the paint either.
After heating hold in place until it cools and it will retain the new shape. I found this method works very well and if you muck it up simply reheat and it will reform its original shape and start again.

This is the only way I could make them fit.

Ahhhhhh...... nothin' beats that twin engine 4 stroke sound.

Hope this helps Cheers
Paul

(in reply to JoeMamma)

Post #: 707

RE: Seagull's "Dual Ace" - 5/11/2008 4:37:31 PM

mrbassman

Posts: 141
Joined: 12/11/2006
From: Chula Vista, CA, USA
Status: offline

Congratulatons Paul !! Glad to hear it went well and you enjoyed it. Twin engine planes are addictive so watch out!!

Ken

(in reply to pc55bomber)

Post #: 708

RE: Seagull's "Dual Ace" - 5/22/2008 9:23:00 PM

HellcatAce

Posts: 176
Joined: 9/27/2005
From: Castaic, CA, USA
Status: offline

I did my first engine out test a couple of days back and found it to be quite flyable on one engine. I could even do turns in both directions (with careful use of rudder!) and had some ability to maintain level flight with throttle control on the running engine. No one engine landings yet, but all in all a very comfortable plane to fly in this condition.

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Fly scale planes scale...really, it looks better.

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Post #: 709

RE: Seagull's "Dual Ace" - 5/23/2008 1:20:25 AM

kiosk

Posts: 287
Joined: 2/12/2008
From: , FL, USA
Status: online

anyone setup a DX7 for dual ace with one engine in THR channel and AUX2 for the other? I have done it but the throttle trim only works on THR channel!!!

(in reply to HellcatAce)

Post #: 710

RE: Seagull's "Dual Ace" - 5/23/2008 4:22:31 AM

Eric.Henderson

Posts: 1403
Joined: 9/10/2003
From: Mt Laurel, NJ, USA
Status: offline

You need to use mix-5 or mix-6 to get trims to work both channels.

Regards,

Eric.

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If it has wings I''ll fly it....

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Post #: 711

RE: Seagull's "Dual Ace" - 5/24/2008 3:53:47 AM

Eric.Henderson

Posts: 1403
Joined: 9/10/2003
From: Mt Laurel, NJ, USA
Status: offline

A friend of mine recently purchased a used (barely) Dual Ace.
It found its way onto my workbench for a bit of a refurb!

He supplied me with a Spektrum 9000 RX which allowed me to use my 10X24 conversion.

I reconfigured/replaced some of the servos and added a steering servo.

As an FYI here is what the 10X will let you do.

First the system configuration.

- 2 elevator servos- Elev and Aux-3 channel

- 2 aileron servos - Ail and aux-1 channel

- Rudder in rudder channel and steering in Aux-4 channel.

- Throttle in throttle channel-left engine and Gear channel-right engine.

All channels in code 17 set to INH.

Here is what she will do now.

- Throttle stick moves both right and left servos

- Throttle trim moves both throttles at the same time

- Aux-4 rotary knob provides the ability to adjust the right engine idle up or down 15%

- The Mix S/W is set for high-low idle options on landing or holding still before take-off.

- Trainer S/W kills both engines very quickly.

- Left throttle has an 8 point mix on an exponential curve to allow matching with right throttle all the way from idle to WOT.

- Ailerons can be used/switched as flaps, airbrakes and flaperons as desired.

- Elevators are perfectly matched

- Rudder trim does not affect or operate the steering servo

- Steering is on an big expo. mix from the rudder and has small movements around center with larger throws at full stick deflection only, for tight turns during close quarter taxiing

-Nose-wheel trim is controlled by Aux-5 rotary knob and is reduced to 20% effectiveness.

Ran out of mixes at this stage. Wonder if the 12X will be as good?

Regards,

Eric.

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If it has wings I''ll fly it....

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Post #: 712

RE: Seagull's "Dual Ace" - 5/28/2008 4:41:20 PM

kiosk

Posts: 287
Joined: 2/12/2008
From: , FL, USA
Status: online

thanks Eric, Program Mix on 5 or 6 did the trick!

which TX does your friend have? sounds like a very cool mix setup!

(in reply to Eric.Henderson)

Post #: 713

RE: Seagull's "Dual Ace" - 5/29/2008 4:44:40 PM

Eric.Henderson

Posts: 1403
Joined: 9/10/2003
From: Mt Laurel, NJ, USA
Status: offline

quote:

ORIGINAL: kiosk

thanks Eric, Program Mix on 5 or 6 did the trick!

which TX does your friend have? sounds like a very cool mix setup!

The example above is on my JR 10.

I can do almost the same with the 9303. The 9303 is cool in that you can elect to use the little trim buttons as individual throttle trims. The radio lets you mix the trim levers that are on the top left and top right of the TX.

The X9303 set-up ends up as follows.

- left trim button for left engine

- right trim button for right engine

- main throttle trim works both engines

- mix-s/w for hi and low idle on both engines

- could not get engne kill on trainer/snap s/w but use main trim instead.

This all gives you individual idle trim on both engines, one master trim control and the ability to slow the idle down when on a smooth surface and want to stop the plane or keep it still.

Regards,

Eric

_____________________________

If it has wings I''ll fly it....

(in reply to kiosk)

Post #: 714

RE: Seagull's "Dual Ace" - 6/2/2008 10:02:07 PM