https://cimg5.ibsrv.net/gimg/www.rcu...3b254ba17f.jpg

Rear T-can stiffener. 1/4" carbon-end grain balsa sandwich. 68mm ahead of previous bulkhead.
https://cimg9.ibsrv.net/gimg/www.rcu...041a5488e8.jpg

Front T-can stiffener. 1/4" carbon-end grain balsa sandwich.
https://cimg5.ibsrv.net/gimg/www.rcu...db5830eae0.jpg

That's not the canopy. It's the turtledeck behind the canopy underneath the T-Canalyzer. There have been reports of canalyzer flutter.

https://cimg4.ibsrv.net/gimg/www.rcu...79ea24bbdd.jpg

No wheel collars. No lost wheels.

Which axles are those?

how do you mount the wheel pants?

want to sell a pair of those stiffeners?

tony

tony

Those are Dubro axles. The wheels are put on and the axles are measured and cut. The end of the axle is heated to orange, cooled, and a small flat is ground on one side. Then a hole is drilled (maybe #60) at the ground point thru the axle to accept a short piece of .032 aviation safety wire. A washer or washers are used for spacing. You will not lose a wheel in a contest using this technique!
I fly on turf, so there will be no pants and the associated hassle.
Wheels are Dubro Lite 2-3/4".
I cannot guarantee the function of the stiffeners as the plane has not flown yet, so you're on your own. They were designed with scraps of information I gathered word-of-mouth. Kyuho Lee checked the photos and felt it functionally matched the structure he added on his Agenda, but I deviated from what he actually did by adding the front stiffener instead of carbon tow around the front screws.
What? No comments about the tailwheel?
-Ron

https://cimg8.ibsrv.net/gimg/www.rcu...ff3f20b10a.jpg

3D printed canalyzer shims to simultaneously adjust incidence and tilt. These are the four rejects. The fifth one was correct and is installed under the canalyzer leading edge. The advantage of 3D printing is precise control of thicknesses (better than 0.5mm tolerance was needed in this case) and reproduceability. It could be done with sandpaper and wood, too, but this was a whole lot more fun.

Process looks good. What did you set yhe incidence at as relates to wing?

I set it the same as the wing, pattratt. It seems to be the consensus here.

Ok, thanks

https://cimg0.ibsrv.net/gimg/www.rcu...06b5b394a8.jpg

Rigging Pull-Pull rudder.
Slot is located by measuring for the point in the fuselage where the width=cable spacing, 2.5 inches in this case. The 2.5" comes from the servo arm and rudder arm hole spacing, which are equal. Servo arm and rudder arms were mounted vertically to lie on the top of the black paint line as shown. Cables were first rigged to the servo arm and then the servo installed. To retrieve the cables from the fuselage, I pushed a small nylon rod into the exit slot and fed the cable into it from the front. Pull the nylon rod out and the cable is magically in place.

https://cimg6.ibsrv.net/gimg/www.rcu...f9995167d0.jpg

Pull-Pull rudder end.

Cable: Surflon Nylon coated stainless 1x7 leader, 60 pound test.
Crimp Sleeve number 3, not number 4 as it says on the Surflon package.
Horn: Sam Turner style. Dowel drilled and tapped for 4-40. Hole in rudder cut with brass tubing "saw", same diameter as dowel. 4-40 threaded rod with 4-40 strip aileron fittings make the actual horn.

https://cimg5.ibsrv.net/gimg/www.rcu...862b10480a.jpg

Test flights today.
https://cimg6.ibsrv.net/gimg/www.rcu...9123adf869.jpg

No big problems, but lots of trimming to do!

With a half dozen flights, the canalizer seems to be functioning properly despite much worry.
Here are some canalizer notes:
1. Use substantial washers under the hold-down bolts to spread the load, about 12-15mm diameter. I made my own from fiberglass sheet.
2. Stiffeners can be made from the following material:
CST #6259 Balsa end-grain carbon sandwich
or CST #C5359 Rohacell carbon sandwich
I found these available at Graves in Orlando.
3. After getting the shims correct for the canalizer incidence, I elected to further seal the bed using the old silicon and Saran-wrap technique. It just seemed like bad mojo to allow a substantial airflow leak from under the canalizer that may affect it's function.
4. With the canalizer incidence set to equal the wing, it seems to match the fuselage hump at the front. Does yours?

How deep is the wing servo well? Is it possible to use a non low-profile servo for the ailerons?

I didn't remove my servo to measure, but slid a thin piece of metal alongside the front part of it. From the bottom of the well to the bottom surface of the wing is about 40mm. I'm using the servo F3A Unlimited recommends, but it looks like a standard servo will fit.
-Ron

Ron, Andrew, thanks a lot.

Concerning the rudder servo, I have got a brand new JR NX8931, which is quite heavy (72g if I remember correctly).

If I install it in the tail, do you think I'll have problems in balancing the airplane for proper CG? The airplane will be equipped with the Hacker Q80 motor.

Hi,

I'm at last ready to do final set-up of my Element - Hacker Q80-11S, Falcon 21x14, Jeti Spin 99, JR 8401's Ail & Rud, 3401's Ele.
I've set the wing at +0.5° relative to the tail & starting CG at back edge of wing tube with canopy on.
What should the canaliser incidence be ? - I've read on RCU it should either be 0° or the same as the wing ??
Also what should the down thrust be, not measured mine yet but the nose moulding looks to be more than the typical 1° down ??

Steve

Steve,

youll want to match the Tcan to the wing. It should need about 3mm spacers on bottom of the front bolts to get you to the same as the wing.

For the thrust your correct it has a bit more but this works, I have added a slight bit of upthrust compared to the nose. https://cimg0.ibsrv.net/gimg/www.rcu...8b8a2ec55.jpeg

Andrew

Hi,
which is the suggested range for the CG in the Element? Between the back of the wing tube and the wing bolts?

Yes, that seems to be the correct CG.
-Ron

Does anyone have any Plettenberg Advance mounting templates for Agenda/Element?
-Ron

Have a new one for sale if interested.

http://www.rcuniverse.com/forum/market/11664802

Tony

Does anyone have a template of the wing SFG for the Element? I would appreciate your assistance. Please PM me. Thanks.

Shoot me an email at [email protected] and I’ll get you mine.

Andrew