FT Tiny Trainer - BUILD

model3113

Member
So it seems pretty standard to mount the servos close to the tail. Is there an easy way to do that AND keep all the linkages & such on the inside? Bout to start my speedbuild kit tonite. Very excited.
 

TooJung2Die

Master member
So it seems pretty standard to mount the servos close to the tail. Is there an easy way to do that AND keep all the linkages & such on the inside? Bout to start my speedbuild kit tonite. Very excited.

It can be done. There is enough room if you glue the servos staggered instead of side by side. I prefer having the linkages outside the fuselage for easy adjustment. I mount them as far back as the servo cable will allow without extensions.

Jon
 
Last edited:

Ross

Member
Is a 175 gram(6.2 oz) GoPro too heavy to mount on top of the wing of the 3 channel setup running the 1806 motor?
 

rockyboy

Skill Collector
Mentor
From my TinyTrainer experience, I'd say probably. To get a better idea, weigh the entire plane w/ GoPro, and then lookup the thrust values for the 1806 with the prop and battery voltage you're using. That thrust ratio will give you some clues about how much of a chance you have for a good flight experience with the added weight.

As an alternative, I have been having fun with this much smaller $40 camera mounted on wings and noses of planes. About 30-35 grams including rubber bands for mounting.

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=34114
 
Just built a Tiny Trainer the other day. I have always told people to build a FT-Flyer first and when you can land it at your feet, move on. However, the Tiny Trainer with the trainer wing, just took off and flew. Amazing. Now, I cannot go back and put my skill level back to when I was first Lawn Jarting my FT-Flyer every 5 minutes. However, it seems to me that the Tiny Trainer flies more like a real plane. It turns nicer. It tracks nicer. It doesn't crazy time Dutch Roll like my Old Fogey. I am very happy with it. Next time out, Ill have the sport wing on it. I'll let you know how THAT goes.

Tom
 

pazmanuelo

Junior Member
I want to build one of this, but I have a question. I'm wanna know if I can use the sport wing first with 3CH to learn and then cut the ailerons and make it a 4CH plane it is to save some foam board.

What do you suggest?
 

BridgeInspector

Flite Test Groupie
I want to build one of this, but I have a question. I'm wanna know if I can use the sport wing first with 3CH to learn and then cut the ailerons and make it a 4CH plane it is to save some foam board.

What do you suggest?

The 3 channel wing has dihedral built in that the 4 channel doesn't have so you would not have the same leveling help. But you could add dihedral to the sport wing, it just may not be as fast and nimble.
 

Hai-Lee

Old and Bold RC PILOT
I want to build one of this, but I have a question. I'm wanna know if I can use the sport wing first with 3CH to learn and then cut the ailerons and make it a 4CH plane it is to save some foam board.

What do you suggest?

The answer to your question is definitely yes!

When I was starting out I built a TT and flew it on the polyhedral wing. I then built a "Sport" wing and prior to fitting ailerons I did fit the sport wing and flew it many times before I added the ailerons.

Yes it is a little less stable and just a little, very little, more sensitive to rudder turns and introduced me to ending a turn with a little opposite rudder. Otherwise it was a brilliant performer.

If you are worried you could add a little more dihedral but no more than .25" at each wing tip.

By the way I have also fitted the same wing (with ailerons fitted) to a 3 channel radio system firstly using rudder/elevator control and later moving it to Aileron/Elevator control. It flies well with either setup.

Enjoy! (I know I did).
 

mlapaglia

Junior Member
nvm
 

Attachments

  • 83Q24n4.png
    83Q24n4.png
    147.1 KB · Views: 20
Last edited:
AXIS Problems

Hi All you people out there
Could someone please help
I built a Tiny Trainer for my kid to learn to fly I installed a AXIS control to the plane when I fly the trainer in normal mode its fine as soon as I switch in the AXIS controller on it looks like its doing the hokeypokey dance in he sky it shakes and rattles in the air

Any help will be appreciated
Thanks
 

Ron B

Posted a thousand or more times
Hi All you people out there
Could someone please help
I built a Tiny Trainer for my kid to learn to fly I installed a AXIS control to the plane when I fly the trainer in normal mode its fine as soon as I switch in the AXIS controller on it looks like its doing the hokeypokey dance in he sky it shakes and rattles in the air

Any help will be appreciated
Thanks
are you sure your axis controller is level with the plane in flight and has the correct orientation also if it has adjustable gains they may need to be turned down a little
 
Thanks Ron will look at it as it did not come with instructions which is front or back I already turned the sensitivity right down but still the same. I put the plane flat on the table to make sure that it is level but might need to adjust with a bit nose up

Thanks will try again this weekend
 

Il Grigio

New member
perpendicular power pod

Hi! I'm from Austria/ Europe and I would like to know why the Tiny Trainers power pod is NOT perpenduicular? The Motor works not parallel to the longside of the plane, this must give a bend while flying, or am I wrong? I apologize for my english. I tried the search, but I did not succeed. Best regrads, Il Grigio
 

Il Grigio

New member
Hi BridgeInspector! THX for the quick reply. English is not my native language. So I'm checking what you mean, but I do not perfectly understand. Would the plane fly with one wing higher than the other if the power pod is perpendicular or what may I imagine? I've never seen such before (I havent seen a lot) on any plane I built. Is this FliteTest style, like some solutions are not "old school"? Could you explain a bit more in quite simple words, please? Regards, Il Grigio
 

Craftydan

Hostage Taker of Quads
Staff member
Moderator
Mentor
Il Grigio,

First off, welcome to the forum :)

Not one wing higher, but instead a roll motion caused by the motor's torque -- the faster the motor spins, the faster the plane will roll, and the more aileron/rudder control you will need to use to counter the roll.

Thrust angle (motor angle off of perpendicular) on an airplane is used to cancel or reduce the coupled effects of the motor on the airplane.

If the thrust angle is wrong, and you trim the plane to fly straight and level at one motor speed, changing the motor speed will act like you've just changed the roll or pitch trim. This is referred to as "coupling" -- A change in one control causes a change in a different axis. Changing the throttle, we expect the plane to increase/decrease speed. We do not expect the plane to roll or pitch up/down. With a bad thrust angle, the throttle is coupled to pitch and/or roll, since a change in throttle will cause the plane to change pitch and/or roll.

The up/down angle cancels pitch changes caused by changing motor speed. The right/left angle cancels roll caused by changing motor speed.

When the trust angle is right, you can trim the airplane to fly straight and level and changes in throttle will not cause changes in roll or pitch. We can then say throttle-to-roll or throttle-to-pitch are "uncoupled" -- a change in throttle will not change the other.

You can still have an airspeed-to-pitch coupling if your CG is off (if the plane is nose heavy or tail heavy), but this is a bit slower, and a weak nose-heavy coupling of pitch to airspeed is not a bad thing to have. this coupling will help you in stalls because it is self-correcting.