HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Dec 01, 2009, 02:13 PM
AEM
AEMontoya's Avatar
Bay Area, CA
Joined Sep 2009
987 Posts
Question
How Much Throw for F5B Control Surfaces?

How much throw is usually used for F5B control surfaces? The plane I am setting up is a Surprise 9 (with flaps), which I plan to sport fly, for now. I have heard: 10mm up aileron, 5mm down aileron (maintaining 50% of upward movement), and 6mm both ways for elevator. I have obtained no information for flaps. Any advice would be greatly appreciated.

AEM
AEMontoya is online now Find More Posts by AEMontoya
RCG Plus Member
Sign up now
to remove ads between posts
Old Dec 01, 2009, 03:56 PM
Needs to do 52 legs !!
jjmouris's Avatar
Verenigd Koninkrijk, Fareham
Joined Aug 2008
7,134 Posts
Recommend to set up 2 flight modes. One for speed and one for duration.

The duration should have the full 10/5 aileron and the speed mode maybe only 4/3 aileron. Less differential and less movement at speed.

Your numbers in general are a good starting point, the final solution will not be far off.
jjmouris is offline Find More Posts by jjmouris
RCG Plus Member
Latest blog entry: My F5B saw tooth props
Reply With Quote
Old Dec 01, 2009, 04:33 PM
AEM
AEMontoya's Avatar
Bay Area, CA
Joined Sep 2009
987 Posts
Thank you jjmouris. A flap-related question: Do most individuals who fly F5B ships set their flaps to a toggle switch so that they allow for two different stages of deflection? Also, what sort of throw are the different stages set at with respect to milimeters or percentage of total throw possible?

AEM
AEMontoya is online now Find More Posts by AEMontoya
RCG Plus Member
Old Dec 01, 2009, 04:46 PM
Needs to do 52 legs !!
jjmouris's Avatar
Verenigd Koninkrijk, Fareham
Joined Aug 2008
7,134 Posts
I use the throttle stick now for full crow mix (ailerons up and flaps down proportianly).

My motor is on a switch.

In the past i use brakes out on a 3 pos switch. You put max on one side and 2/3 of that on the middle position.
jjmouris is offline Find More Posts by jjmouris
RCG Plus Member
Latest blog entry: My F5B saw tooth props
Reply With Quote
Old Dec 01, 2009, 06:51 PM
One Idiot is plenty...
Dbox's Avatar
Planet Earth
Joined Jun 2005
5,156 Posts
Not much.
Faster You go ,less You need.
Yuri.
Dbox is offline Find More Posts by Dbox
Reply With Quote
Old Dec 01, 2009, 06:56 PM
slope'n the Colombian Andes
ShredAir's Avatar
Colombia, Antioquia, Girardota
Joined Mar 2001
4,686 Posts
6 mm on elevator is excessive. Half that will suffice even with a somewhat conservative set-up.

Dieter Mahlein, ShredAir
ShredAir is offline Find More Posts by ShredAir
Reply With Quote
Old Dec 01, 2009, 07:09 PM
Boom goes the dynamite!
verticalflight's Avatar
Palo Alto, CA
Joined Dec 2003
502 Posts
AEM - congrats on getting my first Surprise airframe. Hope she serves you well! Here are my notes on how I originally set her up:

Ailerons
Low rates 8 up 3 down
High rates 12 up 6 down
Flaps coupled with ailerons, 50%

Elevator
Low rates 3 up 3 down
High rates 4 up 6 down

Crow
Ailerons up ~14mm up and flaps max down
Some elevator trim adjustment but I don't have it written down

Best,
Kris
verticalflight is offline Find More Posts by verticalflight
Reply With Quote
Old Dec 01, 2009, 10:29 PM
AEM
AEMontoya's Avatar
Bay Area, CA
Joined Sep 2009
987 Posts
Thanks for the very informative responses everyone. Special thanks to you, Kris, for going through your records to get that specific information for me--that will help a lot. I could never have made it so far in my new venture into F5B without everyone's generous guidance.

Andy
AEMontoya is online now Find More Posts by AEMontoya
RCG Plus Member
Old Dec 02, 2009, 12:44 AM
Boom goes the dynamite!
verticalflight's Avatar
Palo Alto, CA
Joined Dec 2003
502 Posts
Sure thing, I am happy to help you flight check your plane on maiden if you'd like... I remember my first time I had my heart in my throat!!!

Ahh the good ol' days...
http://www.rcgroups.com/forums/showthread.php?t=750277
verticalflight is offline Find More Posts by verticalflight
Reply With Quote
Old Dec 02, 2009, 12:47 AM
Boom goes the dynamite!
verticalflight's Avatar
Palo Alto, CA
Joined Dec 2003
502 Posts
Oh and these two are right up your alley AEM!

http://www.rcgroups.com/forums/showthread.php?t=790114
http://www.rcgroups.com/forums/showthread.php?t=845531
verticalflight is offline Find More Posts by verticalflight
Last edited by verticalflight; Dec 02, 2009 at 12:56 AM.
Reply With Quote
Old Dec 02, 2009, 02:32 PM
AEM
AEMontoya's Avatar
Bay Area, CA
Joined Sep 2009
987 Posts
Great stuff, Kris. Thanks. The lingering reservations that I've always had about the integrity of the wing are just about gone now that I've seen those extra pic's. I have a new fuse for her and the wing has been beautified and lightly reinforced by me and the previous owner. Like you, I plan to start off with 3s before I throw in the 4s. Yeah, I expect to be pretty psyched up and anxious on my first flight, especially since my overall flying experience is quite limited. My goal has been to find someone (possibly for hire) to help me with my first series of flights. If you or someone you know would be willing to help out, I would be more than grateful. I still need to put probably about two month's worth of time into getting her ready and practicing on the simulator before my maiden, though. Incidentally, I appreciate the postings that you put on your account page; the pic's and descriptions have helped me to install cooling vents, assemble the receiver tray, and more. I hope to post photos on my account soon too, as I'd like to give back to others that are trying to learn just like me.

AEM
AEMontoya is online now Find More Posts by AEMontoya
RCG Plus Member
Old Dec 02, 2009, 02:36 PM
Boom goes the dynamite!
verticalflight's Avatar
Palo Alto, CA
Joined Dec 2003
502 Posts
No need to pay, just PM me when you want to take her out.
verticalflight is offline Find More Posts by verticalflight
Reply With Quote
Old Dec 02, 2009, 03:17 PM
AEM
AEMontoya's Avatar
Bay Area, CA
Joined Sep 2009
987 Posts
Awesome. I will do that.

Andy
AEMontoya is online now Find More Posts by AEMontoya
RCG Plus Member
Old Dec 03, 2009, 04:40 AM
ROV Pilot
jijohans's Avatar
Norway
Joined May 2002
469 Posts
Do any of you guy's use Expo on your controls?
jijohans is offline Find More Posts by jijohans
Reply With Quote
Old Dec 03, 2009, 04:52 AM
Needs to do 52 legs !!
jjmouris's Avatar
Verenigd Koninkrijk, Fareham
Joined Aug 2008
7,134 Posts
About 50% on the ailerons and up to 80% on the elevator.

Joe
jjmouris is offline Find More Posts by jjmouris
RCG Plus Member
Latest blog entry: My F5B saw tooth props
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion How sloppy can the control surfaces be? byrocat Pusher Prop Jet Models 8 Oct 26, 2009 08:47 AM
Discussion How much difference does weather make to F5B legs? davidleitch High Performance 2 Oct 19, 2009 08:25 AM
Discussion Hinges for control surfaces helivsFMX Foamies (Scratchbuilt) 19 Sep 26, 2009 08:57 PM
How much control throw? Larry Richardson Scale Kit/Scratch Built 3 Sep 29, 2004 05:26 PM
Formosa Finished - How much throw on controls surfaces? mrebman Parkflyers 2 Nov 15, 2003 02:30 AM