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Old Nov 24, 2008, 11:31 PM
jingjingjing is offline
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I love my ID.
Discussion

13 inch wingspan full fuse Shinden canard pusher


I haven't flown or built Canard or pusher before. This was a unique experience for me.

Shinden was WW2 Japanese fighter plane. It was built and flown at the end of the war.

spec:

Wingspan: 13"
AUW: 21.3g (with 6mm Cessna power system) ,22.6g (with GWJ 7mm Red power system)
Wingloading: 3.36 oz/sqft
Control: A/E/T 3 channel
Prop: GWS 40x40
Material used: 2mm depron frame and 0.025" Durobatics
Power system: 6mm Cessna gearbox (tested), 7mm GWJ Red (not yet tested)

Here is the link to the video:
https://www.rcgroups.com/forums/show...3#post11021148

I can take any constructive criticism. Thanks for visiting.
Last edited by jingjingjing; Nov 27, 2008 at 01:37 PM.
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Old Nov 24, 2008, 11:35 PM
Conehead is offline
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Flutter-Bys are fun
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You should post this in the Canard forum under Electric Plane Talk. Canard Addict started the thread and your build would be appreciated.

link, I hope. Canard Forum: Show,Discuss, Learn ( Multi-page thread 1 2 3 4 5 ... Last Page

To me, your build looks very good.

Conehead
Orrin Eldred
Honor, MI.
Last edited by Conehead; Nov 24, 2008 at 11:37 PM. Reason: link added, I hope, also correct name of forum
Old Nov 25, 2008, 06:21 AM
NitroCharged is offline
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Team30 Micro EDF
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Nicely done! It looks great.
Old Nov 25, 2008, 06:58 AM
meatbomber is offline
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Square-rigger
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looks great! it`s seriously small too, what is the wingarea you have ? Wingloading will be quite high i guess?
Old Nov 25, 2008, 08:37 AM
canard addict is offline
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Well done, JJJ, I know you are proud of it. Charles
Old Nov 25, 2008, 11:00 AM
jingjingjing is offline
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I love my ID.
Wingloading turn out to be 3.36 oz/sqft. For a comparison Parkzone cessna wingloading is about 2.2 oz/sqft.

I didn't want my Shinden to be a slow flyer. Aileron wouldn't work properly if it flys too slowly.

With 6mm motor It flies about 2 min. After that 2 min, it doesn't wants to climb at all. Now I changed the motor to GWJ 7mm, but haven't been tested yet. By changing the motor to GWJ 7mm, I added 1.3g on the back of the plane. It will affect the CG. I might add 1g of weight on the nose according to the test result.

Yes I am proud of the 'look' at this moment. It flew fine with 6mm motor although it feels little under powered. I will have to see how it handles 7mm motor.
I will post the video later on.
Last edited by jingjingjing; Nov 27, 2008 at 11:30 AM.
Old Nov 25, 2008, 02:49 PM
customminatures is offline
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foamanologist
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looks very good. Hope the 7mm works out ok for you!

Matt
Old Nov 25, 2008, 03:29 PM
356Jim is offline
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That plane is nice, Good subject. Looks ripe for a 2 gm brushless (with .65 gm BL ESC and B-B converter) for a power system weight of about 3 gm and add about 1 gm more for a 130 mAH LiPo

Will you paint it? If so, what will you use. I recommend light mist coats of Design Master floral foam-safe spray paint - very light and many colors
Last edited by 356Jim; Nov 25, 2008 at 03:30 PM. Reason: correct wording
Old Nov 25, 2008, 03:41 PM
Mike Taylor is offline
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Team 30 Micro EDF
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I bought Dave Deils' Shinden kit so I could build along with Nate Sturman, shortly before he died from cancer. I built mine as an EDF using one of Mike Cross's 30 mm inrunner fan units, and I built it as a profile foamy to test out control options before doing the balsa model.

Since there no information available regarding how the controls were on the real aircraft, I flew it in a number of control configurations - Elevons only, ailerons with canard elevator, and mixed elevons/canard. It seemed to fly best with ailerons and canard elevator. I made my canards 'full-flying', and as a result, wound up replacing the CF rods that acted as hinges on a regular basis (guess which part lands first).

CG was located about the bottom of the fuselage inlet duct and in front of the wing. CG was not a critical factor, as it would fly with the CG forward or back - it didn't seem to care that much. What was apparent was that the canard needs to be set-up with 6 degrees positive incidence in relation to the wing.
Old Nov 27, 2008, 01:28 PM
jingjingjing is offline
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I love my ID.
Here is the link to the video.

https://www.rcgroups.com/forums/show...3#post11021148

7mm motor worked out fine. More weight on the tail seems to increase the sensitivity of the aileron. I can maintain level flight at 75% throttle.

My Shinden have 0 degree incidence on canard. The symmetrical main wing airfoil seems to eliminate the need for the positive incidence.
Last edited by jingjingjing; Nov 27, 2008 at 01:35 PM.
Old Nov 29, 2008, 11:12 AM
jingjingjing is offline
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I love my ID.
Good suggestion, 356jim. I will try that option when the funds are available.
Old Nov 29, 2008, 01:28 PM
jingjingjing is offline
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I love my ID.
What is the B-B converter? Is it same as Steve's converter?

By the way, I have seen 130mah 1 cell battery with Parkzone connector advertised on the banner but I lost the link. Can anybody direct me to the vendor?
Old Nov 29, 2008, 02:10 PM
Richard Cox is offline
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Richard Cox
The Hobby City 100 mAH cells are pretty good.


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