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Old Mar 29, 2006, 09:33 PM
aka RAMTech-RC
Chandler, AZ
Joined Aug 2005
514 Posts
Great work, can't wait for a video.
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Old Mar 30, 2006, 01:48 PM
registered foam addict
chara's Avatar
Munich, Bavaria
Joined Dec 2004
1,265 Posts
Quote:
Originally Posted by Speedo125
Oh...... I LIKE it! I think I'm gonna have to have one of these! It's going to need some expo' to tame it enough for me, but that's easy enough. Good Job Chara.
Thanks Speedo,
I'll post some plans after the maiden (in case I have to change something in the design). It is pretty easy and straight forward to build. Hope you will like it.
greetings
chara
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Old Mar 30, 2006, 01:53 PM
UH-60 Blackhawk TI
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Michigan, United States
Joined Feb 2006
176 Posts
Chara,

Whats your weather looking like? Any chance for your maiden flight SOON. Can't wait. Good luck.

Hawk
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Old Mar 30, 2006, 02:03 PM
registered foam addict
chara's Avatar
Munich, Bavaria
Joined Dec 2004
1,265 Posts
Quote:
Originally Posted by mr badwrench
Hey, How big is that thing? Its cute so I assumed it was small...
thanks and sorry badwrench that I forgot to give some specs.
In deed I would consider it as small to medium sized.

Wing span is 62cm (= 24.4 in), Length is 55cm (= 21.6 in).
Flying weight will be 230-260g (around 8-9 oz ?) depending on your setup.
260g is with 3 servos, 3s1p 850mAh battery and a small outrunner motor.
Thrust will be around 350g with this setup.

Everything is built in 6mm Depron (blucor works as well of course) and some styrofoam. With the given dimensions and weight the whole construction is stiff enough to do well without any CF-rod reinforcements. That reduces costs and complexity

hope your question is answered
greetings
chara
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Old Mar 30, 2006, 02:11 PM
registered foam addict
chara's Avatar
Munich, Bavaria
Joined Dec 2004
1,265 Posts
Quote:
Originally Posted by hawk4932
Chara,

Whats your weather looking like? Any chance for your maiden flight SOON. Can't wait. Good luck.

Hawk
Hawk, weather is rainy at the moment. Forecast for tomorrow Is just as bad, but Saturday looks promising!
Believe me, I'm just as anxious to go and fly that baby as you are!
I still have to do the linkage of the control surfaces, so I'm not too disapointed with the weather as long as Saturday is stable!

@TopFoam:
I'll try to persuade my girlfriend to do the camera-woman once again, so I can
send some footage of the maiden flight.

wish me luck!
chara
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Last edited by chara; Mar 30, 2006 at 02:51 PM.
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Old Mar 30, 2006, 02:37 PM
registered foam addict
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Munich, Bavaria
Joined Dec 2004
1,265 Posts
...I thought I'd do some cosmetics and add a simple paint scheme (the "classical", pitts one) to the wings to enhance visibility when it is in the air.

Motor is installed - I wished I had a big nice spinner that I could flange to the prop. It would look so much cuter...

-chara
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Old Mar 30, 2006, 06:36 PM
gpw
“There’s no place like Foam”
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I hope it will turn !!! You may have to turn it with the rudder and keep the wings level with the ailerons... Maiden will tell !!!
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Old Mar 30, 2006, 07:47 PM
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Crash & Burn's Avatar
Palmdale, Ca
Joined Jul 2004
243 Posts
Chara, that is realy cute!!! love its shape and lots of wing area.
good luck on your madin. looking forward to reading and see about it
Rowe
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Old Mar 31, 2006, 03:28 PM
registered foam addict
chara's Avatar
Munich, Bavaria
Joined Dec 2004
1,265 Posts
Quote:
Originally Posted by gpw
I hope it will turn !!! You may have to turn it with the rudder and keep the wings level with the ailerons... Maiden will tell !!!
hey Glen,
I wonder a bit why it shouldn't.
thrust to weight, wing loading etc. looks all reasonable to me,
so when CG is on the right spot it should fly just fine.

I'm only a bit unhappy with the ailerons actuation. servo is a bit worn out, servo arm a bit too short. but I'll go for it as it is. As you said, "Maiden will tell!"

@Rowe:
Thanks! Tomorrow is the day!


greetings
chara
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Last edited by chara; Mar 31, 2006 at 03:36 PM.
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Old Mar 31, 2006, 08:39 PM
Glider guider
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United States, FL, Sun City Center
Joined Oct 2005
359 Posts
Good luck with the maiden tomorrow Chara! Actually, I guess it's nearly "tomorrow" already in Munich.
What a great looking design! We're headed into town (60 miles) tomorrow. I'm going to stop at Kinko's and print a 12" and a 24" version.
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Old Apr 01, 2006, 12:51 PM
registered foam addict
chara's Avatar
Munich, Bavaria
Joined Dec 2004
1,265 Posts
Maiden Successful!!! :)

Yeeeeeppppeeeee!!!!!! SHE FLYES!!!!!
We had great weather today! A bit windy though but dry and warm, so I gave it a try.

I was realy happy with the outcome of the maiden flight. Very first flight was a bit touchy cause the CG was too far aft. The "rule" that the correct CG position is 1 inch more worward than you have calculated showed once again to be ALWAYS true!

After some batteries-moving and fiddling around with trim positions, expo and dual rates she finally rewarded me with GREAT FUN .
She goes vertical with 2/3 throttle and likes so much to loop, hover and hammerhead that it is a real pleasure to see her fly. The paint sheme by the way (as simple as it is) looks realy beautyful when she flies.

Things that I would change after my first impressions are:

- the "tame" version would do better with a higher wing loading (build it smaller or use heavyer gear) to make it less susceptible to gusts.
Rudder is optional.
Use only small elevator deflections or go with a slightly smaller elevator.

- if you go for the aerobatics version:
link the upper ailerons to the lower ones to make her roll faster. roll rate was rather low. I would say just right for "promenading".
use less to none wing camber to have more symmetrical pitch behavior (a CF rod in the lower wing would be recommended in this case for more stiffness).

We took some videos of the maiden flight. I'll cut them together and post them tomorrow. I think you're gonna like it!
Later I will update the plans and post them too.

Greetings and thanks to all!
chara
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Old Apr 01, 2006, 01:17 PM
JAM
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Nine Mile Falls, WA
Joined Jun 2004
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Great news....congrats

JAM
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Old Apr 01, 2006, 01:31 PM
UH-60 Blackhawk TI
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Michigan, United States
Joined Feb 2006
176 Posts
Glad to hear the good news. You should be very proud. Congratulations. I will be looking for the plans when you post them.

Hawk
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Old Apr 01, 2006, 03:16 PM
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Palmdale, Ca
Joined Jul 2004
243 Posts
Hey chara, CONGRATULATIONS on the maden. I bet it looked good while flying. It is a realy nice looking plane. I'm also looking forward to building one of these using your updated plans.
Rowe
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Old Apr 01, 2006, 05:36 PM
Registered User
Lake In The Hills, Il
Joined Jun 2005
359 Posts
chara... GREAT NEWS!
Congratulations Take a bow! proud Papa. It is so cute!!!
Maybe too soon to ask but. Does it fly as slow and relaxed as you hoped?
can't wait for the video.....
windy city
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