Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old Feb 29, 2012, 10:42 PM
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The wing mounted LG do present a problem.

For grass I had a more novel solution for my Dumas GB E. I attached the LG with magnets. When it landed in the grass the LG just sheared off. It was hand launched.

I have had the same kind of issue with the 1/4 scale GB E. Tires have no give and LG is stiff. I broke out the LG blocks on one attempt. So have resorted to sprung struts.

Not sure how to fix the little one except for smoother landings on smooth runways.

charlie
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Old Mar 01, 2012, 08:37 AM
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For a minor increase in weight, I'm going to install hard balsa landing gear rails in the inner bays of the wing and bend the top part of the landing gear wire 90 to run in them. That should spread the landing loads out quite a bit. I'm also going to laminate the inner wing ribs with carbon mat. I may also try to run some kind of kevlar fishing line rigging similar to what the real one had to better reinforce the landing gear.

Did the real Gee Bee Z have sheeted wings like the R1/R2? that would be too much of a weight penalty on the small one but it would add tremendous strength.
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Old Mar 02, 2012, 04:51 AM
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The 'Z' wings were fabric covered aft of the main spar.
Mine is ready to cover (that should read STILL ready to cover after more than a year) but I'm once again contemplating adding the huge wing root fairings. Probably not a good idea since it flies so well as designed...
Old Mar 03, 2012, 08:03 PM
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The kit and graphics arrived about a week after ordering -- both well packed and arrived without any damage. The plans were rolled up and in good condition. My only regret was paying for a folded color printout of the instructions, which I'd already downloaded and printed for free at work.

I ordered the hexTronic 24g 1300kv and GWS pico servos from HK, the SkyLipos from hobbypartz, a CC Thunderbird 9 ESC, So-Lite, GWS props and a bunch of other stuff from RadicalRC. They have a really interesting selection of equipment.

I don't have room to have two kits on the go at the same time so I need to finish up my TF Bearcat over the next few weeks. Good motivation to get her done!
Old Apr 07, 2012, 01:04 AM
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This kit is like a good book that needs to be read in one sitting. The quality of design and the obvious effort that went into ensuring everything goes together just so make this an absolute pleasure to build. I've been collecting and studying plans, learning Autocad, and watching other builds while building my first two TF kits (Corsair and Bearcat) and I've learned more in one day about model aircraft design than I have in the past six months. Hats off to Rob for a great piece of work.
Old May 09, 2012, 12:30 AM
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Quote:
Originally Posted by jwiebe View Post
This kit is like a good book that needs to be read in one sitting. The quality of design and the obvious effort that went into ensuring everything goes together just so make this an absolute pleasure to build. I've been collecting and studying plans, learning Autocad, and watching other builds while building my first two TF kits (Corsair and Bearcat) and I've learned more in one day about model aircraft design than I have in the past six months. Hats off to Rob for a great piece of work.
There is a manual! For me nothing was there, I can load it down?
Old May 09, 2012, 12:31 AM
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Yes, been there for a while

http://www.manzanolaser.com/html/downloads.html

Along with some other interesting bits.

charlie
Old May 11, 2012, 01:56 PM
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Thank You
Old May 12, 2012, 01:18 AM
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The model you have purchased from manzanolaser.com?
Are there any other shop, which are a bit cheaper?
Old May 14, 2012, 08:12 AM
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This model is only available from Manzano Laser Works.
Old Jun 14, 2012, 12:16 AM
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Do you have a picture as you have the servos installed inside?
Old Nov 04, 2012, 08:16 AM
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1st flight


Greetings
I finally got the time to fly my Z after it sitting on the shelf completed for months.
What a great flying plane. I had a little trouble with the graphics on the many compound curves although they were well made by Callie .
I will build another and paint the wheel pants and the area behind the cowl on the next one unless a 1/4 scale kit is coming soon. I can't believe how well it flys and a lot cheaper than a eflite with the gyro. madrob you are awesome it's been a dream of mine to have a real working gee bee z. Thank you!
P.s the people at the field ate there words with a 3 pointer on the maiden.
Respectfully John G
Old Nov 04, 2012, 11:34 AM
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It is interesting how the horrors of flying a GeeBee have persisted after all these years.

GeeBee's were notorious for being easy to fly. Crashes? Yep. They were high performance planes flown at and past their limits on a regular basis, usually at very low altitudes.

I'd rather fly a GeeBee than any other current competition aerobatic or race plane.
Old Nov 10, 2012, 11:43 AM
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I have completed the build and am doing final prep for covering etc. I will post some pictures later.

As expected, this kit was wonderful to put together. Parts fit well and nothing gave me too much trouble. Some sanding/carving is to be expected given this Z's lines.

Only issue I had was a seriously warped wing panel. I framed up the wing (minus top sheeting) and had it sitting on the bench for a week or more. When I lined it up again everything was way off. The wing root lined up but the tip had shifted back by 0.25" or so. Had a good amount of sweep and was really pronounced at aileron cutout. I had to cut slits in the bottom D-box sheeting and jig everything up to fix it. Must have been caused by some humidity effects or something.

Just getting the power system and electronics together now for it. What the is Hobbyking motor that everybody has been using? I was trying to dig back to see..
Old Nov 10, 2012, 06:44 PM
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Gee bee motor


I used the bp hobbies 2204-19 motor and a apc 8x3.5 prop with great results.
Flew her again today with no wind , what a pleasure although I had more trouble landing without a headwind. Reminds me of my old dr1 landing Need to burp the trotle to keep it rolling straight ahead. I would love a larger short kit hint hint
Johnny


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