DONT LAUGH__ need help!! beginner

DONT LAUGH__ need help!! beginner
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DONT LAUGH__ need help!! beginner - 3/9/2006 10:33:44 PM

zucaro

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Joined: 10/4/2005
From: , NV, USA
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My planes run around in circles when I try to take off. I tried bending the wheels to compensate for the motor torque, but it didnt help. I have both tail dragger and nose wheel, neither has servo steering. How do you fix this?? Also I tried a flying wing with a edf-50 ducted fan , but it has so little thrust I can walk faster than it taxies. I tried changing the motor to a edf-55-150 and then to a edf55-300h, but still poor power. Are these cheap ducted fans just junk, or am I doing something wrong????

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 10:44:12 PM

carrellh

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From: Garland, TX, USA
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Can you list the specific models you have? Otherwise it is just a guessing game.

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 10:49:21 PM

red head

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From: Zephyrhills, FL, USA
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I'm guessing --- but it sounds like you are adding to much throttls to fast and working the sticks to hard. Try slowing down a bit and taking your time to see what it's doing. ENJOY !!! RED

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 10:51:20 PM

mnrcaerobat

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From: Minnetonka, MN, USA
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If its small enough, do a hand launch.

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 10:56:08 PM

air mail rcu

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From: Pittsburgh, PA, USA
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Are the wheels binding on something? They need to be very free. Can you post some pics?

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 10:58:05 PM

agexpert

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From: Corona, CA, USA
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How can a tail-dragger not have servo steering, (unless the tailwheel is not connected to the rudder)? And furthermore...why? I am a beginner too, I have never heard of this type of setup. Is it common to have 'freewheeling' RC airplanes?

Flying safely is one thing, but this sounds like a runaway ankle-chopper.

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 11:23:28 PM

carrellh

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From: Garland, TX, USA
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This is why we need to know what the planes are. If they are really light electrics, the wheels may really just be there for looks.

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RE: DONT LAUGH__ need help!! beginner - 3/9/2006 11:42:14 PM

red head

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From: Zephyrhills, FL, USA
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I use free wheeling tail wheels on some of my planes, No big deal, you just have to learn how to control them.

WHY ??? Because it was an easy way to mount the tailwheel. It also keeps the weight down. And because I wanted to.

ENJOY !!! RED

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RE: DONT LAUGH__ need help!! beginner - 3/10/2006 2:54:40 AM

BlackBuddha

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Joined: 4/17/2005
From: Elk Grove, CA, USA
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Do you think it is just the P- Factor?

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RE: DONT LAUGH__ need help!! beginner - 3/10/2006 3:57:24 AM

ho2zoo

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Joined: 3/1/2002
From: Louisville, KY, USA
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You can try doing the hand-launch. Or if you want to take off from the ground- as said above, make sure the wheels are both spinning freely, hold the plane by the tail as you bring the throttle up to full, then release. Naturally, be careful as you are doing this, and have the plane pointed away from yourself and spectators.

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RE: DONT LAUGH__ need help!! beginner - 3/10/2006 4:28:29 AM

forestroke

Posts: 1821
Joined: 10/20/2003
From: Taipei, TAIWAN
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quote:

ORIGINAL: zucaro

My planes run around in circles when I try to take off. I tried bending the wheels to compensate for the motor torque, but it didnt help. I have both tail dragger and nose wheel, neither has servo steering. How do you fix this?? Also I tried a flying wing with a edf-50 ducted fan , but it has so little thrust I can walk faster than it taxies. I tried changing the motor to a edf-55-150 and then to a edf55-300h, but still poor power. Are these cheap ducted fans just junk, or am I doing something wrong????

unfortunately, you're probably doing something wrong.

being a small electric, if there is no servo steering than it is very likely that it's not meant to take off from the ground (ROG). you'll have to hand launch it. also, you know to always take off into the wind, right? just have someone help you hand launch it. best is to find someone experienced because i've seen people hand launch their foamies into a hundred peices

just go toward the wind, give it full power and gently toss it level to the ground. don't try to launch it UP. just level. i usually give the elevator trim a few clicks of up elevator so that the plane climbs after you release it. some planes are just unflyable to the beginner though. post a picture, we'll tell you.

as for the duct fan. duct fan these days are amazing but you have to do it right. first, make sure that you have enough voltage. if you're trying to fly a duct fan with a 7.4V battery, it's likely not to work. get some more volts. but post a picture first so we know what you're trying to fly. duct fan flying wings aren't suppose to taxi at all!!! hand launch them. duct fans in general need some speed to start working since they have very little torque. so you'll have to get them to speed before they really start to come into their own.

agexpert - free wheeling tailgear isn't as uncommon as you think. a lot of big 3D planes don't have them. but you really have to have a big rudder if you don't have differential braking. did you know that some taildraggers don't even have wheels?

this is one plane advertised as "easy to fly" that most beginners can't. i had a fun time trying to make it fly. it also has a fixed plastic tail gear and i would nuts to try to get this to takeoff from the ground! hand launch everytime.

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RE: DONT LAUGH__ need help!! beginner - 3/10/2006 8:16:07 PM

zucaro

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From: , NV, USA
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THANK YOU, to everyone who replied to" dont laugh, need help, beginner." Things are starting to FLY now.

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RE: DONT LAUGH__ need help!! beginner - 3/11/2006 9:03:07 PM

red head

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So tell folks what helped you, maybe they are having the same problem.

ENJOY !!! RED

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RE: DONT LAUGH__ need help!! beginner - 4/6/2006 8:15:01 PM

locolobot

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From: Lenoir City, TN, USA
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try using toe in on the wheels. Makes the plane run straight just like your car. It is done on full size aircraft for the same purpose.

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