HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Nov 04, 2012, 02:33 PM
Registered User
Lantsov Alexey's Avatar
Russian Federation, Saint Petersburg, St Petersburg
Joined Jan 2009
240 Posts
Hi all.
Made its first flight on the differential system.
Flying with ACC 120 mA more than 4 minutes.
Thank you for your attention.
Video coaxial system in flight.
Комплекс F3P-Expert 2012-2013 (2 min 9 sec)
Lantsov Alexey is online now Find More Posts by Lantsov Alexey
Reply With Quote
Sign up now
to remove ads between posts
Old Nov 04, 2012, 04:05 PM
HyperFlight Support
Neil Stainton's Avatar
United Kingdom, England, Stratford-upon-Avon
Joined Feb 2001
3,837 Posts
Wow. Very impressive model and flying.

Neil.
Neil Stainton is online now Find More Posts by Neil Stainton
Reply With Quote
Old Nov 04, 2012, 11:10 PM
Registered User
Jurgen Heilig's Avatar
53859 Niederkassel, Germany
Joined Sep 2000
18,728 Posts
Quote:
Originally Posted by Lantsov Alexey View Post
Нi Neil. Two engines on the wing be problems .
So as , to be weak flow to the rudder.
Here is an alternative solution :

Indoor Twin Motor Shockflyers (4 min 31 sec)


Jürgen
Jurgen Heilig is offline Find More Posts by Jurgen Heilig
RCG Plus Member
Old Nov 05, 2012, 12:00 AM
Registered User
Vladimir88's Avatar
Joined Mar 2010
328 Posts
.........
Vladimir88 is offline Find More Posts by Vladimir88
Last edited by Vladimir88; Nov 05, 2012 at 01:48 PM.
Reply With Quote
Old Nov 05, 2012, 11:20 AM
HyperFlight Support
Neil Stainton's Avatar
United Kingdom, England, Stratford-upon-Avon
Joined Feb 2001
3,837 Posts
Quote:
Originally Posted by Jurgen Heilig View Post
Here is an alternative solution :
http://www.youtube.com/watch?v=Yhta0FsMChQ
Thanks Jurgen. That is the implementation I initially thought of, but I thought you guys would be even more against a twin fuse design. The increased inertia in the roll axis didn't seem to harm the roll response visibly.

But it is't clear from the video if they actually used motors rotating in the opposite direction. Do you know?

Neil.
Neil Stainton is online now Find More Posts by Neil Stainton
Reply With Quote
Old Nov 05, 2012, 12:07 PM
Registered User
Jurgen Heilig's Avatar
53859 Niederkassel, Germany
Joined Sep 2000
18,728 Posts
Quote:
Originally Posted by Neil Stainton View Post
...
But it is't clear from the video if they actually used motors rotating in the opposite direction. Do you know?
...
The props turn "down between fuselages", i.e. the left fuselage uses a standard prop, the right fuselage an identical "pusher prop".

Jürgen
Jurgen Heilig is offline Find More Posts by Jurgen Heilig
RCG Plus Member
Old Nov 05, 2012, 12:19 PM
HyperFlight Support
Neil Stainton's Avatar
United Kingdom, England, Stratford-upon-Avon
Joined Feb 2001
3,837 Posts
Quote:
Originally Posted by Jurgen Heilig View Post
The props turn "down between fuselages", i.e. the left fuselage uses a standard prop, the right fuselage an identical "pusher prop".
Thank you. Can you confirm the movable wing surface between the fuselages was connected as a snap flap - ie it moved in the opposite sense to the elevator, and was not connected to the ailerons?

TIA,

Neil.
Neil Stainton is online now Find More Posts by Neil Stainton
Reply With Quote
Old Nov 05, 2012, 12:29 PM
Registered User
Kimmo Kaukoranta's Avatar
Tampere, Finland
Joined Apr 2004
82 Posts
In addition to the twin with counter-rotating props, you could just stick a quadrocopter to the nose of your plane. If I had more time to experiment, I would try 4x AP-03's just for the hell of it, might sound like a swarm of bees though And how about interleaving or intermeshing propellers. Many ways to solve the same problem.
Kimmo Kaukoranta is offline Find More Posts by Kimmo Kaukoranta
Reply With Quote
Old Nov 05, 2012, 02:02 PM
Registered User
Jurgen Heilig's Avatar
53859 Niederkassel, Germany
Joined Sep 2000
18,728 Posts
Quote:
Originally Posted by Neil Stainton View Post
Thank you. Can you confirm the movable wing surface between the fuselages was connected as a snap flap - ie it moved in the opposite sense to the elevator, and was not connected to the ailerons?
...
Yep, confirmed! The flap between the fuselage is controlled by a seperate servo.

Jürgen
Jurgen Heilig is offline Find More Posts by Jurgen Heilig
RCG Plus Member
Old Nov 19, 2012, 10:14 AM
Registered User
Joined Nov 2010
40 Posts
Hi..can someone tell me where to get those carbon props? I am building my first F3P model.
Thanks!
bells33 is offline Find More Posts by bells33
Reply With Quote
Old Nov 20, 2012, 12:52 AM
F3A Team Finland
Finnspeed's Avatar
Järvenpää, Finland
Joined Nov 2005
873 Posts
Please look a couple of pages back:
http://www.rcgroups.com/forums/showp...8&postcount=85

Glavak's price list follows in the post #88.

If you want to deal with an online shop, this one has Glavak props and Mejzlik as well:
http://www.f3p-online.com/c-1420947/propellers/

By the way, just like Glavak, Kimmo makes his own carbon props and is selling the counter rotating systems but the waiting time may be considerable as this is a hobby for him. I also recommend that you take a look into the sticky thread about F3P equipment in this forum.
Finnspeed is offline Find More Posts by Finnspeed
Reply With Quote
Old Nov 26, 2012, 11:45 AM
Janne Lappi, F3A Team Finland
JanneL's Avatar
Helsinki, Finland
Joined Sep 2008
129 Posts
Hello,

here you have a couple videos of my new coaxial plane. The power system is of course "the good old" coaxial system by Mr. Kimmo Kaukoranta I can say the system is simply awesome.

F3P FAI AP-13

Janne Lappi flying F3P FAI AP-13 preliminary sequence (3 min 13 sec)


F3P FAI AF-13

Janne Lappi flying F3P FAI AF-13 final sequence (3 min 3 sec)


Best regards,
Janne Lappi
JanneL is offline Find More Posts by JanneL
Reply With Quote
Old Nov 28, 2012, 03:36 PM
Registered User
Germany, BY, Gräfelfing
Joined Jan 2003
420 Posts
Hi,
this counterrotating drives we discuse in 2005 and 2008 at RC-Network .I told the guy there to use the 3 ring brush system for counterrotating .Se version with drum ring and with plate ring brush system . I am impressed that someone has taken the idee to this success .Congrates to you.
As Jürgen Heilig mentioned the two seperate counterrotating propellers can be done by one motor and two flexcable drives .You can get left and right hand flexcable .With the flexcable you can steer the driveshaft of the prop in any direction give new trust impemented show cornering in teh air . Great for flying pancake with a single motor.
Christian Lucas is offline Find More Posts by Christian Lucas
Reply With Quote
Old Nov 28, 2012, 04:07 PM
Registered User
Germany, BY, Gräfelfing
Joined Jan 2003
420 Posts
Hi,
here an other counter sytem .This workes with one esc .The two stator are wind with one wire over the gap .On the one side it has a 10 pole bell and on the other is a 14 pole bell .As the different magnetpole counte the bell have counterrotating in the magnetsystem .Used a very good controller that can handle the signal and you have to set up the right load of the propellers as they have to load the bells with different torque as the bell rev with different revs . Yes ,this is a very crazy motor.
Christian Lucas is offline Find More Posts by Christian Lucas
Reply With Quote
Old Nov 29, 2012, 03:22 PM
Registered User
Germany, BY, Gräfelfing
Joined Jan 2003
420 Posts
Hi ,
todayi took some Lego Technik part from my kids and build this version of differenzialgear .This does the same like the gear in Michael Ramels big drive with the Lehnermotor ,but has a lower gear ratio and different gear ratio for each propeller.But as actio = reactio the propeller mount on the gear house will turn like the prop on the frontshaft .This version can built in the spinnerbase and need no spezial motormount .It´s a seperate part easy to conect on different motors.Belong to the gear ratio you can drive a smaller high rev motor save weight.
Christian Lucas is offline Find More Posts by Christian Lucas
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log EPP f3P Plane tallflyer SDPARKFLYERS 14 Feb 28, 2012 02:32 PM
Discussion The New Phantom F3P Plane by Budgetrc.com tallflyer Foamies (Kits) 8 Jun 04, 2011 12:37 PM
Question Very slow indoor plane - F3P or??? Petrik59 Foamies (Scratchbuilt) 2 Dec 31, 2010 06:03 AM
Discussion Galaxy F3P Review, hobbyking plane dhdsracer Electric Plane Talk 0 Dec 17, 2010 09:45 PM
Discussion Another full scale electric plane Bob Chiang Electric Plane Talk 5 Sep 09, 2010 09:20 PM