Leo

Thanks, The trim tabs are cut from the elevator halves, sanded to shape and secured in place with piano wire.

I have followed the specs of the full size aircraft (supplied with the plans) i.e.+3 deg at wing root, -3,5 deg. at wing tip and +0,75 deg. at stabilizer.
It is concievable that the required elevator up-trim on my Shrike is a result of human error. (or sloppy craftmanship;-)

didiwatt

My Feedback: (38)

Leo:
Was your +3 degrees on the wing root also tranferred to the firewall? I think I opened a can of worms here. My plans call for 0/0/0 on all three. Might just stick to that and let ya know how it goes. You are to hard on yourself. The trim could be a result of a kazillion things interacting. Beautiful plane........... Thanks for the help
Paul

Leo

Thanks for the kind words. The wing incidence at the nacelles is close to 0 degrees and there is no up- or downthrust in the motor mounts

/Leo

jetfixr

My Feedback: (13)

Paul,

Do you have a link to the airplane you are building? I would like to see it.

Leo,

I doubt it is sloppy craftsmanship. I have also set my firewalls to 0,0. I am going to try to find out what the actual incidence of the real aircraft is and see if it matches the plans. I bet it does since this design is pretty scale.

didiwatt

My Feedback: (38)

I don't have a thread going on the build. Can see the plane on the manufacturers website and a link to an earlier model I buidt and flew but I think you have already seen it. Wesite address is giantscaletwins.com
Paul

jetfixr

My Feedback: (13)

I remember now. Yours was the yellow one with red stripes right? I am glad to see you are building another one. Are you going to finish this one out like your first one, or are you making changes?

Leo

Paul, Very nice looking Commander. The colour scheme is surely good for visibility too.

In order to avoid tip stall in the high tapered wing, I would recommend the same amount of washout as on the full size aircraft

They seem to be very forgiving planes. Even with one engine out:
[link]http://www.airliners.net/photo/Aero-Commander-680E/1479466/L/[/link]

ghost flyer

I just got an Aero Commander at an auction. I believe it might be a Bridi Shrike. It has a 78 inch wingspan and is about 56 inches long. Fiberglass fuse. I was wondering what the CG and throws would be on this bird?

ram3500-RCU

My Feedback: (221)

Can't help as I sold my kit, but I just wanted to say, looks like someone did a fine job on that one.

jetfixr

My Feedback: (13)

I think I have a copy of the plans for that airplane. I will check later tonight and see if I can get you that information. Great looking airplane!

Patto

Yeah, someone appears to have really put a lot of time into that plane, based on the pictures. Very cool!

ghost flyer

There are even curtains on the windows and an instrument panel with gauges. The paint job is like glass. Wish iy had retracts. Sadly though there is some hanger damage.

Ghost Flyer

jetfixr

My Feedback: (13)

Sorry it took so long to get back to you. The plans show the CG to be 76mm back from the leading edge of the wing, however I don't see any control surface throws on them. They must be in an instruction manual somewhere. Hope this helps.

Jeff

ghost flyer

Thanks a bunch, It helps a lot.

jetfixr

My Feedback: (13)

No problem! Are you going to be able to get video when you fly it?

ghost flyer

I need to find a good OS .46 FX first. The engines that were in it are OS 40 MAX V engines which are rear exhaust and won't work in it. I have one good OS .46 FX and as soon as I lay my hands on a second one I can start on it. It was definitely built to be a display plane as no pushrod is going to the front wheel. Video from the cockpit OK?

Ghost Flyer

jetfixr

My Feedback: (13)

That would be awesome!