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Pica Duellist - 5/7/2003 5:16:29 PM   
roadtrip



Posts: 202
Joined: 11/4/2002
From: Giebelstadt, Germany, USA
Status: offline 		I guess nobody is running 4-strokes in the 2/40 Dualist. I did some checking and found out that the Saito .56's I wanted to use are way to long for the necelles with the rear carb pipe and I can't seem to find any 4-strokes that have the needed power that will fit. So I think I'll join the crowd and find two reliable 2-strokes. I sure do like the look of the saito .56 golden knight, tho.

_____________________________

Bob Duncan The only real helicopter is the CH-47 Chinook. The rest are just sling loads!!

(in reply to OldRookie)
       Post #: 276

Pica Duellist - 5/7/2003 6:12:30 PM   
Flyboy Dave



Posts: 13511
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: offline 		I have a pair of NIB O.S. .40 FSR's I'm gonna use in
mine....If I ever get around to it. I just put up a Twin
Star....so when it expires I'll probably put up the .40,
then the big one.

So many planes....so little time.... :

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to OldRookie)
       Post #: 277

Rare bird - 5/8/2003 3:55:58 AM   
widgeon



Posts: 71
Joined: 2/17/2002
From: East Rockaway, NY, USA
Status: offline 		Hi Bill, I concur with your analysis of the situation as regards my old Dooley. Yes I will guard it jealously and as a Father would his daughter, let no one touch it. I'll keep in touch with the progress and some pics. Regards, jack Filman (Widgeon)

(in reply to OldRookie)
       Post #: 278

Pica Duellist - 5/19/2003 4:19:21 AM   
Richman67


 

Posts: 14
Joined: 5/12/2003
From: Florida
Status: offline 		Hi all,

WOW long thread...I didn't know the Duellist evoked such emotion...

Anyway, here's my $0.02....

I built a Duellist 2/40 back in 1984. In came in HEAVY at around 13 pounds or so not including fuel. It was only my 3rd model (after a Rapier and a Touche) so I didn't know anything about lightning it up (or anything about anything, really)...oh well.

I put in two HB .40 PDPs (both new) and ran 1 servo for Ailerons and another for the throttles per the plans at the time. From what I recall, I ran 10x6s and I never had a ground clearance probem, but I did have the nose gear collapse a number of times. I installed B&D pneumatic retracts, and I could never get the mains to mount flush, so I added some "fairings" to the bottom of the wing.

Even at 13 pounds, this thing went like mad and flew like a pattern ship. The sound was truely awsome.

Best,
Richman

(in reply to OldRookie)
       Post #: 279

Pica Duellist - 5/19/2003 6:02:12 PM   
roadtrip



Posts: 202
Joined: 11/4/2002
From: Giebelstadt, Germany, USA
Status: offline 		Richman67
You said you could never get the mains to mount flush. I have the same problem with my 2/40. The mains stick up above the wing by 1/4 inch aft and 1/8 inch forward (at each side of the units). I took photos and sent them to Pica, for all it's worth. Also, I had to cut away the entire W-3 rib section where the retract units go through as they extend from W-3 to W-4, to get them to seat on the mounts. I guess I'm going to have to move them over to the necelles and put them inside the them. Unbelievable!! I've got so many discrepencies with this kit, I can't believe it's so popular! Wing ribs are too short; center wing braces are both too long; I've found wood that's not on the inventory and can't find some of the wood that is and measurements are confilcting in several places, so that you have to figure out on your own which piece of wood the instructions are really talking about. If I wasn't so far into building it, I'd send it back.

_____________________________

Bob Duncan The only real helicopter is the CH-47 Chinook. The rest are just sling loads!!

(in reply to OldRookie)
       Post #: 280

Pica Duellist - 5/19/2003 7:54:44 PM   
Richman67


 

Posts: 14
Joined: 5/12/2003
From: Florida
Status: offline 		Hi Bob,

Sorry for your difficulty. It was a long time ago, but I DO remember that there was a lot of on the fly modifications we had to do to make everything work out.

To fix the gear problem, we added a sheet of 1/8 balsa sheet in the gear area and faired it to the rest of the wing. Not the prettiest, but it looked better than when we started.

Good luck,
Richman

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(in reply to OldRookie)
       Post #: 281

Pica Duellist - 5/24/2003 12:03:39 PM   
roadtrip



Posts: 202
Joined: 11/4/2002
From: Giebelstadt, Germany, USA
Status: offline 		Can anyone tell me where they mounted the retract servo?

_____________________________

Bob Duncan The only real helicopter is the CH-47 Chinook. The rest are just sling loads!!

(in reply to OldRookie)
       Post #: 282

Pica Duellist - 5/24/2003 12:12:24 PM   
Flyboy Dave



Posts: 13511
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: offline 		In the middle of the wing....

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to OldRookie)
       Post #: 283

Pica Duellist - 5/24/2003 12:17:04 PM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		With a quick release ball socket on the pushrod to the nose retract.

Bill.

_____________________________

Real Airplanes have Two Engines
AMA 25139 - More than 40 years.

(in reply to OldRookie)
       Post #: 284

Pica Duellist - 5/24/2003 1:43:34 PM   
roadtrip



Posts: 202
Joined: 11/4/2002
From: Giebelstadt, Germany, USA
Status: offline 		I'm waiting for the cockpit kit to come and I'm not sure if the reciever will fit where the plans say to put it, which is where the cockpit kit is to go. And what about the battery pack? I don't know what the cockpit kit consists of, but I wouldn't think you could put the reciever and battery pack all in there with the cockpit. Any suggestions from those who've installed the cockpit?

_____________________________

Bob Duncan The only real helicopter is the CH-47 Chinook. The rest are just sling loads!!

(in reply to OldRookie)
       Post #: 285

Pica Duellist - 5/24/2003 9:26:15 PM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		Bob:

Until you mentined it, I had forgotten there was a cockpit kit available. I have never known of anyone using it so I can't help at all here.

Sorry.

Bill.

_____________________________

Real Airplanes have Two Engines
AMA 25139 - More than 40 years.

(in reply to OldRookie)
       Post #: 286

Retract Servo - 5/25/2003 7:46:31 AM   
TCBLightning



Posts: 242
Joined: 12/30/2001
From: Waukesha, WI, USA
Status: offline 		I went with two servos. I didn't want to mess with the linkage...

A long way to go but it's all glassed. Just have the control surfaces to finish. Then it's all done but the painting!!

Can't wait to fly this plane!

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< Message edited by TCBLightning -- Jun 8 2003 3:25AM >

_____________________________

Tim, "Twin Junkie," AMA 612200
Flying Electrons--Waukesha, Wisconsin

(in reply to OldRookie)
       Post #: 287

Pica Duellist - 7/26/2003 7:08:11 AM   
wildhair


 

Posts: 64
Joined: 5/30/2003
From: Paris, TN,
Status: offline 		Has anybody out there had a problem with balancing there duellist? I have a old pica kit and using os46fx, the plane is weighing out at 9lb3oz Im using robart air gears so far I've got 7oz on stab to balance out. I've got my battery behind wing saddle. My c/g point is 43/4" back from leadingedge. Any suggestions would be appreciated.
thanks wildhair

< Message edited by William Robison -- Jul 27 2003 10:06PM >

(in reply to OldRookie)
       Post #: 288

Pica Duellist - 7/26/2003 9:35:31 AM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		wildhair:

I'll bet you left the nose and nacelle blocks pretty think, didn't you?

If it's not too late pop all the forward blocks off and cut a lot more out of the inside. If you can get them all down to 1/8" wall thickness you should be fine.

Another way to decrease nose weight is using Tru-turn spinners. Expensive, but they are even lighter than the Du-Bro plastic ones. And the Du-Bro are lighter than most other metal spinners.

If you can get the nose block off, look at the front former F1. Its ply, and you can cut a fair bit of it away without losing any amount of strength. Also the former F3 at the wing LE can be hollowed.

Finally, at 4 3/4" CG with a weight of 9lb. 3oz. the plane should fly without a problem other than being a bit fast, and landing a little hot.

If you have not hollowed the blocks too much, going back and doing it should give you another 1/4 inch on the CG all by itself, and at 5" CG you should have a nice flying plane.

HTH.

Bill.

_____________________________

Real Airplanes have Two Engines
AMA 25139 - More than 40 years.

(in reply to OldRookie)