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Old Mar 08, 2014, 07:41 AM
What could possibly go wrong?
nickchud's Avatar
Market Harborough
Joined Apr 2006
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Quote:
Naturally, the elevator trim made up the difference
Works fine.

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Old Mar 08, 2014, 12:19 PM
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Joined Mar 2011
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quick question guys, on a different note if i may, how does the rc viggens and grippens compare? i was just looking at some vids with flite test of their viggen and wondered as the viggen was designed before fly by wire was the norm, if aerodynamically it may have been better. the viggen apparently has a tremendous speed range.

Flite Test - FT Viggen (21 min 26 sec)
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Old Mar 10, 2014, 04:03 PM
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Denmark, Capital Region of Denmark, Charlottenlund
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Got to test my FPV Canard with in the first true FPV-flight. My work wouldn't let me go home early, so it got a bit dark and windy before I was in place. Still, you get the idea.

The plane performs quite nicely. Stable and with reasonable climb performance (testing at 1:10) despite rather low power (140w) motor. Large 9.5x8 folding prop and slim, hi-aspect wing should compensate a bit. Used 410mAh during the app 5 minutes flight.

Haven't had time to edit, sry.

UN-EDITED 1560mm DIY canard fpv maiden (5 min 33 sec)
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Old Mar 10, 2014, 05:00 PM
What could possibly go wrong?
nickchud's Avatar
Market Harborough
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Wow! that's really fantastic, and all with a 140w motor. What was the AUW of the plane?

Well done Mike!

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Old Mar 10, 2014, 05:14 PM
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Denmark, Capital Region of Denmark, Charlottenlund
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Quote:
Originally Posted by nickchud View Post
Wow! that's really fantastic, and all with a 140w motor. What was the AUW of the plane?

Well done Mike!

Thank you!

AUW was 880gr. 2100mAh 3S main Zippy, 460mAh FPV NanoTech, Moebius camera, PZ0420 FPV cam, LawMate 1.2GHz 500mW VTx.

I hope weather holds up a few more days, so I can refine the plane and do longer and higher flights. Also planning on using a 2650mAh NanoTech main LiPo as this has a better form factor for aerodynamics.
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Old Mar 11, 2014, 07:42 AM
What could possibly go wrong?
nickchud's Avatar
Market Harborough
Joined Apr 2006
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Starship enhancements

Does any of this sound familiar?
Quote:
Design refinements for a future Starship II:

Re certify the Starship according to Beechcraft's original structural design; Filament wind the fuselage; Shed 2,500 lbs and fly faster, further.
Replace the props with turbo fan engines, thereby eliminating fuselage/wing wake issues.
Remove all but the inside 2 vortex generators on the forward wing. Starship aerodynamicist John Roncz claims that only the 2 inboard VG's are necessary to keep airflow attached to the trim tabs; The rest are completely unnecessary. According to Mr. Roncz, the Starship would gain 10 to 15 knots with this simple design change.
Eliminate the 800 lb. flap system. Deploying the flaps reduces the Starship's stall speed by only 5 knots. Without the extra weight of the flap system the difference might be only 3 knots.
It comes from Bob Scherer's Starship website

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Old Mar 11, 2014, 10:59 PM
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United States, CA, San Leandro
Joined Feb 2011
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Long EZ 46 CG

Quote:
Originally Posted by rocdent View Post
Dose any one know the correct CG for the Richmodel Long EZ 46? This will be my first canard and I have read a lot of posts on CG determination. If someone has flown this plane and knows the correct location I would really appreciate it. Thanks, Richard
13 3\4 inches back from where the wing meets the fuse........
I have the Long EZ 46, The Keecat and The Keecat ll............all are great flying as long as your cg and THRUST ANGLE is correct. I had to put down thrust on both KeeCats and add 22 ounces of lead to the rear firewall of the Long EZ. Nice looking models just not engineered very well, hope this helps.
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Old Mar 12, 2014, 12:47 PM
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Denmark, Capital Region of Denmark, Charlottenlund
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Today's FPV flight with canard view (and signal loss)

Control signal lost at 1:00 and 3:00. Fortunately at altitude and plane behaved well. I think I even stall on one occasion waiting for the control to return with zero throttle...

Canard FPV (3 min 58 sec)
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Old Mar 12, 2014, 07:29 PM
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Imramos,

We have a Long EZ Voyager build log here on pages 27 to 37. The span is 52 inches. On post 433, my measurement for the CG was 16 inches behind the canard's LE. Check post 426 for a look at the COG calculator's data. Hope you can get your CG close to flyable from this. It is not too critical.

Mike_o, I enjoyed your videos. You were brave to maiden at sundown.

Charles
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Old Mar 23, 2014, 05:08 PM
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Denmark, Capital Region of Denmark, Charlottenlund
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Have my Tx control issue fixed. Went flying with Dennis this afternoon. He got a nice in-flight picture of my Canard:



The plane is a joy to fly. Plenty of speed to penetrate today's medium strong winds, This is a my on-board video:
FPV Canard (2 min 57 sec)
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Old Mar 24, 2014, 06:31 AM
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mike_o , Congratulations to your friend for capturing a wonderful scene. Also, your video gave the effect of being in the cockpit. Your canard with a long fuselage seems stable.

Charles
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Old Mar 26, 2014, 09:59 PM
Eat, Fly, Dream, Repeat...
IfIHadWings's Avatar
United States, GA, Jefferson
Joined Jun 2012
619 Posts
RCM&E Can-Doo

Hello all. Canard noob here. Scratch build is making progress. Can-Doo wing, foreplane and fuse are rough finished. Ailerons and elevators are profiled and dry hinged. Working on empennage and canopy now. I have a 2212-1400kv motor on the bench with an APC 7x5e prop and 30amp ESC waiting for a 3s/2200 to send her into the wild blue. The plan is to cover the individual items first then complete the final assembly.

I'm not new to building but I've never tried a canard - building or flying.

Any tips, suggestions or pointers at this stage would be much appreciated!
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Old Mar 26, 2014, 10:19 PM
who has rabbit ears down
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United States, MN, Buffalo
Joined Jan 2007
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Wings! looks pretty clean to me! is there a positive incidence on the canard mountings?
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Old Mar 26, 2014, 10:35 PM
Eat, Fly, Dream, Repeat...
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United States, GA, Jefferson
Joined Jun 2012
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Thanks Capt! +2 degrees per the plan.
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Old Mar 27, 2014, 03:26 PM
who has rabbit ears down
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United States, MN, Buffalo
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Good! get 'er done!
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