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Old May 08, 2014, 02:47 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
8,362 Posts
The full size is supposed to be at prime AoA on take off at 20 degrees but actually takes of at less. The tail has a wheel fitted just in case !! not only for take-off but for landing as well......... BA reports that it has never been in contact with runway in all scheduled flights.

My EDF's are actually quite low and I am in danger of scraping them on the ground IF I lift the nose too far... but so far she's managed to leave the ground before it's actually happened.

I do have scrapes on bottom of the nacelles from landings though.

My next project is the TU 144 .. this will be Pusher props .. similar size to my Concorde (1200mm LOA, 600mm span) ..
The prop problems will be there .. but we hope the power will be such that she will 'rocket' down the runway !!

Power is initially to be twin :

Floater-Jet Replacement Motor (AXN-2208-2150)
Specs.
RPM/V: 2150kv
Max Watts: 180w
Max Amps: 20A
Max Volts: 11.1 (3s)
Turns: 16t
Resistance: 0.085Rm
Magnet type: N45SH
Idle Current: 1.52A
Shaft: 3mm
Weight: 44.0g
Suggested Prop: 5x5 / 6x4

using 5x5 or 5.5 x 5.5 props ... on 3S but with 4.75 xx 4.75 I could likely go 4S..

OR :

my twin 3200kv motors of my twin Parkjet .. with 4.1 x 4.1 props and 4S ..

Nigel
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Old May 08, 2014, 03:12 AM
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Charelston SC U.S.A.
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TU-144 That's a build I look forward to Nigel!
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Old May 08, 2014, 03:14 AM
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Lionel. . . What's the status of your Concorde. . . . . What conclusions have you come to?
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Old May 08, 2014, 03:56 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
8,362 Posts
Quote:
Originally Posted by demondriver View Post
TU-144 That's a build I look forward to Nigel!
Similar story as what prompted ny Twin EDF Concorde .. part of a Scratchbuild Comp on Wattflyer ..

http://www.wattflyer.com/forums/showthread.php?t=73244

Only trouble is I'm stuck in Crimea .. Visa running out .. no way to travel out .. so have no idea when I will get back home again ...

Nigel
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Old May 08, 2014, 10:25 AM
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Joined Jun 2011
115 Posts
... just to fill the time, while Lionel is organizing the next step, here is my version in scale 1:48 .

You will not be
surprised to hear :
it does not sport
any landing gear


http://rcflights.com/video/Concorde_Mk5-2.wmv
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Old May 08, 2014, 11:59 AM
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Michael V's Avatar
United States, CA, Torrance
Joined Apr 2012
703 Posts
Quote:
Originally Posted by Blendedwing View Post
Hi Michael,
I do have some experience with Concorde, if you see my "Family development" video you will notice that I have experimented with a large number of models, from chuck gliders to 1:48 scale models.

I second many of your, and Nigel's, observations:
- it can parachute itself down
- it is very sensitive to CoG Position and elevons deflection
- like all delta's it bleeds speed during turns
- negotiating take off and landing, on an undercarriage, is the most complex part of the airplane

As a consequence it is a big challenge the one you have taken on: building it as a sloper.
The benefit with a sloper is that you do not to have to worry about the undercarriage.
Awesome, thanks.

I love your Concorde series and how it flies, great stuff.
OK, on everything else you confirm what I've found so far. At least I don't have to figure the take off landing part :-)
And yes it always seems like I need more speed, but I can't get it (no motor) so the solution is more weight, but so far it hasn't been great success.
Yes so it looks like I won't be taking the challenge of a Concorde as a sloper Dommage!

Danke sehr!
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Old May 08, 2014, 03:23 PM
I tell her RC is cheap !
carguy1994ca's Avatar
Quebec, Canada
Joined Sep 2006
12,373 Posts
Quote:
Originally Posted by Blendedwing View Post
... just to fill the time, while Lionel is organizing the next step, here is my version in scale 1:48 .

You will not be
surprised to hear :
it does not sport
any landing gear


http://rcflights.com/video/Concorde_Mk5-2.wmv
Awesome ! Loved the landing A very technical model to build and fly, I'm learning a lot on this tread.
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Old May 08, 2014, 06:18 PM
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Concordefan2's Avatar
Joined Jun 2013
516 Posts
Quote:
Originally Posted by carguy1994ca View Post
Awesome ! Loved the landing A very technical model to build and fly, I'm learning a lot on this tread.
Wow!!!, you built a beautiful little Concorde ' s model and let me tell you, the roll you did, is scale!!. I mean Capt, Brian Whirlpol has rolled AF's Concorde in flight during one of many test flights......
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Old May 08, 2014, 06:30 PM
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http://m.youtube.com/results?q=rolling%20Concorde&sm=12
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Old May 09, 2014, 04:23 AM
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Great video at that link,
thank you Concorde2 !
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Old May 09, 2014, 07:31 AM
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Quote:
Originally Posted by Blendedwing View Post
Great video at that link,
thank you Concorde2 !
+1 Sweet Bird!
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Old May 20, 2014, 02:35 AM
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Doesn't this looks familiar!....
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Old May 20, 2014, 03:44 AM
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Charelston SC U.S.A.
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Quote:
Originally Posted by Concordefan2 View Post
Doesn't this looks familiar!....
It looks like it's at an RC trade convention somewhere.
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