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Citabria Pro (1/8 scale)

A 48", parasol-winged, aerobat.

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kc29/03/2013 19:10:35
5442 forum posts
161 photos

Great model! Where and when can we expect the plan?

It's a fairly light model so what sort of wind did it cope with today?

Danny Fenton29/03/2013 19:24:56
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8461 forum posts
3434 photos
Congrats Tim looks a cracker well done
Erfolg29/03/2013 19:48:10
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10790 forum posts
1022 photos

Tangental

I am a little puzzled as what you are referring to?

As for Tims model, exemplary, outstanding!

Tangental29/03/2013 20:28:44
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123 forum posts
4 photos
Posted by Erfolg on 29/03/2013 19:48:10:

Tangental

I am a little puzzled as what you are referring to?

As for Tims model, exemplary, outstanding!

Your long post seems to have disappeared.face 22 Or was it on another thread?blush Sorry it's an age thing. Wibble wibble.(I've pm'd you)

Tim Hooper29/03/2013 20:50:27
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2820 forum posts
2346 photos

Whilst Erf and Tan bond in a parallel universe somewhere else........

Thanks for the kind comments Gents!

kc, I guess the breeze was around 10mph this morning and the Pro coped admirably well. It has loads of power to cut through on the upwind passes, so I'd have no hesitation about flying it again similar conditions. However I want photos of it passing in both directions, which makes the downwind passes a bit problematic from a photographic point of view.

Still happy here!

tim

bouncebounce crunch30/03/2013 02:27:48
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1739 forum posts
212 photos

Another lovely model Tim. I know jealousy is a curse so cursed i be. I wonder if this size model will become the most popular in future? What size ic would you recommend now that she has flown? cheers bbc

David Ashby - RCME30/03/2013 19:12:27
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Moderator
10793 forum posts
1612 photos
604 articles

Teriffic as always Tim. That's a sweet little design, should be popular.

Tony Richardson30/03/2013 19:52:19
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557 forum posts
25 photos

Nice model Tim, I would love to build this one and compare it to the Balsa USA model I have, powered with a Super Tigre 3000 no less ( I also have it set up with floats for the odd water weekendcool hence the large motor ) it would be nice to have a smaller version that could go in the the back of the car for a quick thumb workout after work at our field look forward to the plan...

Tim Hooper30/03/2013 21:52:20
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2820 forum posts
2346 photos

Tony,

It was the BUSA model that got me started on this project. I fell for the look of the model, but couldn't justify the size of the BUSA model.

Hopefully, this one will end up as a published plan in your favourite magazine........

tim

Tony Richardson31/03/2013 15:57:09
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557 forum posts
25 photos

Hope so to Tim, thought of building another BUSA Citabria and splitting the wing into three leaving the centre panel attached with two outer panels, the one piece is even long for my pickup box.

 

Hope the weather improves for you all over there soon, we on Vancouver Island are finally getting some sun and nice temps 12-15c highs after the gloomiest winter on record.

 

Cheers Tony.

Edited By Tony Richardson on 31/03/2013 15:57:48

Tony K04/04/2013 08:01:17
228 forum posts
66 photos

Tim, that is superb. My ambition in this hobby to be able to create scale models from scratch. Your work is truly inspirational.

Tony Richardson06/04/2013 06:00:38
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557 forum posts
25 photos

Any chance of a video Tim??? weather permitting of coursehot

Tim Hooper06/04/2013 20:12:39
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2820 forum posts
2346 photos

Tony,

I'm not video-minded, and it never crosses my mind to arrange for a videographer. Sorry about that!

However, we did meet up with ace lensman Bob Kemp today, so here are a few of his shots.

img_2304.jpg

_mg_8805.jpg

_mg_8935.jpg

_mg_8968.jpg

_mg_9015.jpg

Three more flights today, so I started to push the envelop a little. Switching to full rates on the ailerons, the Pro has quite a rapid, axial roll response.

Inverted flight is easy but takes a definite push on the elevator stick to keep the nose up - which points to a conservative CG position I guess.

Stall turns - easy peasy. Same for wingovers too.

tim

Tony Richardson07/04/2013 01:10:41
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557 forum posts
25 photos

That really is a nice looking model Tim can't wait for the plan smile p are you having any probs with adverse yaw? my BUSA model has so much aileron differential the down going ail hardly moves and rudder is a must for good looking turns.

I have to tell you I did not build this one actuaiiy bought it from an estate sale, it had a few issues with really old radio gear and the like but the one that most amazed me was the wing incidence was almost 4 degrees negative which made elevator response something of a challenge at timesteeth still all sorted now and ready for the season....

Tim Hooper07/04/2013 21:05:07
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2820 forum posts
2346 photos

Tony,

I pre-emptied the adverse yaw issue, and built in a little bit of mechanical differential (around 3:2 ratio). After the first flight I mixed in a little bit of rudder in with the ailerons. Just lazy really.....blush

Minus 4 degrees? No wonder it was for sale! Mine has 1° positive on the wing and zero on the tailplane. As usual.

tim

Tony Richardson04/05/2013 04:20:08
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557 forum posts
25 photos

Hi Tim any word on when the plan will be out I really can't wait to get my hands on this one.

Tim Hooper04/05/2013 17:02:11
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2820 forum posts
2346 photos

HI Tony, and thanks for being keen!

The article and plan is already submitted, so it's up to the management. I never know until the issue prior, when I look in the 'Next Issue' page near the back of the magazine.

As much as I'd love it to be published immediately, I am very aware that there is a queue of my colleagues - all of whom have their their own creations in the pendng tray.

timsmile d

Tony Richardson01/06/2013 22:16:17
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557 forum posts
25 photos
Hi Tim, hope that the Citabria is giving you lots of fun.

At the beginning of this thread you stated you had a private source for the 3 views would that source happen to know where the original full size is or if it still exists.

I have done numerous searches on the net but so far no luck, if it is on this continent (north ameria) I would dearly like a walk around, also my boss model lacks a pilot and I am at a loss for correct size any suggestions .
Tony Richardson02/06/2013 00:12:59
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557 forum posts
25 photos
Hmm boss model, should be B.U.S.A. model darn spell check LOL.
David Tweddle24/07/2013 14:24:57
290 forum posts
3 photos

Well I got me a plan, this one must take to the board next.

Thank you Tim, also for the link to here.

David

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