RC India
Welcome Guest, please login or register.
 
Pages: [1]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: May 31, 2011, 07:24:37 PM »
alok roxx
Plane Lover
Active Member
**

Reputation Power: 1 
alok roxx has no influence.
Offline Offline

City: Ernakulam
State: Kerala
RC Skills: Beginner
Posts: 26
Join Date: May, 2011




hi im just a beginner and i need some help with my first plane........
after reading some of the discussions in this site, i decided to make a piper cub as my first plane......
my first project , a thermocol plane, was discontinued after i found out that i had been building it disproportionately..........
i've attached some pictures of the cub i've built and the motor and prop im using.......
ive posted this bcoz i found that the plane does not fly but just glides throught the air and comes to rest, even when the fan is still running........
i was wondering whether im using a motor that is far too weak, or a prop which is too short...... by the way , the prop's 8 cm in diameter....... the motor was taken from a broken heli.......... the prop has been recycled from an old plane..........      i just dont know what the problem is....... the wings are made of thermocol and the fuse, from cardboard....    
if u hav any suggestions, please inform me.                                     thank u.

Picture 001.jpg
help needed with completing my piper cub
* Picture 001.jpg (28.53 KB, 640x480 - viewed 190 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
Logged
 

Read
« Reply #1 on: May 31, 2011, 07:25:51 PM »
alok roxx
Plane Lover
Active Member
**

Reputation Power: 1 
alok roxx has no influence.
Offline Offline

City: Ernakulam
State: Kerala
RC Skills: Beginner
Posts: 26
Join Date: May, 2011



sorry abt the clarity of the pics but im using the camera in my laptop....
Logged
 

Read
« Reply #2 on: May 31, 2011, 07:40:47 PM »
Sumeet
Rise and rise again until lambs become lions...
Plane Lover
Forum Hero

*****

Reputation Power: 7 
Sumeet has no influence.
Offline Offline

City: Nagpur
State: Maharashtra
RC Skills: Beginner
Posts: 540
Join Date: Oct, 2010



Tell us more about...

Propeller Pitch, Motor's specifications(KV etc) and which battery, AUW etc?
Tell us everything you know about it.

As you have built it disproportionately, It seems like this could be the problem. But Nobody would be able to tell the exact problem without knowing above things.
Logged

<<<<<<<SUMEET>>>>>>>>
 

Read
« Reply #3 on: May 31, 2011, 07:42:20 PM »
Sahevaan
Plane Lover
Forum Veteran
****

Reputation Power: 6 
Sahevaan has no influence.
Offline Offline

City: hyderabad
State: Andhra Pradesh
RC Skills: Intermediate
Posts: 412
Join Date: May, 2009



The plan would be too heavy . Try an all foam fuse or use a bigger motor/prop . The fuse also looks pretty big , the width and height , probably its getting slowed down because of that !
Happy flying ,
Sahevaan
Logged
 

Read
« Reply #4 on: May 31, 2011, 08:02:02 PM »
alok roxx
Plane Lover
Active Member
**

Reputation Power: 1 
alok roxx has no influence.
Offline Offline

City: Ernakulam
State: Kerala
RC Skills: Beginner
Posts: 26
Join Date: May, 2011



the problem is, since i got the motor and prop from older planes, i dont have the specifications...... all i know is that the propeller is 8 cms in diameter and the motor has 3250 written on one side..... and on thing else.... this plane is not built disproportionately.... i was talking abt an older project.... this plane was made to specifications given in     http://www.rcfoamcrafters.com/design.htm
Logged
 

Read
« Reply #5 on: May 31, 2011, 08:12:55 PM »
rohitgupta322
Plane Lover
Forum Hero

*****

Reputation Power: 12 
rohitgupta322 has no influence.
Offline Offline

City: Illinois, USA
State: OUTSIDE INDIA
RC Skills: Beginner
Posts: 986
Join Date: Feb, 2010



Looks like the prop is too small or the motor is not sufficiently powerful.

May I know how you are controlling it, what speed controller have you used?

Do the control surfaces move, do you have servos attached to move them ?
Logged

Be Inquisitive
 

Read
« Reply #6 on: May 31, 2011, 08:56:46 PM »
alok roxx
Plane Lover
Active Member
**

Reputation Power: 1 
alok roxx has no influence.
Offline Offline

City: Ernakulam
State: Kerala
RC Skills: Beginner
Posts: 26
Join Date: May, 2011



no i wanted to see if the plane flew b4 attaching the control surfaces....... i have attached only the stabiliser not the elevator or rudder.......
Logged
 

Read
« Reply #7 on: May 31, 2011, 09:24:41 PM »
SunLikeStar
Forum Administrator
Forum Hero

*****

Reputation Power: 20 
SunLikeStar barely matters.SunLikeStar barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Intermediate
Posts: 1902
Join Date: Aug, 2010

High spirits we have: gravity we flout.



the plane does not fly but just glides throught the air and comes to rest
First of all add a vertical stabilizer then post a video of how it is flying.
Logged
 

Read
« Reply #8 on: May 31, 2011, 09:32:03 PM »
sunk?
Boat Lover
Forum Veteran

****

Reputation Power: 6 
sunk? has no influence.
Offline Offline

City: Bristol. UK
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 458
Join Date: Jan, 2010



hi mate.
I am not a plane flyer but,
 the wings look in the picture to have a 'lower' leading edge than the trailing edge
try lifting the leading edge.
regards
don
Logged

regards
don
UK
 

Read
« Reply #9 on: May 31, 2011, 09:52:26 PM »
sbajare
sandy
Plane Lover
Forum Hero

*****

Reputation Power: 18 
sbajare has no influence.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Advanced
Posts: 1182
Join Date: Jun, 2009

Human mind is like a parachute, works when open



hi,

call vinod on 09847551840. he is in ernakulam and will help you.

you need to learn a lot thats all i can say. you need guidance.

regds
sandeep

Logged

Sandeep Bajare
Ph - 9175342600
sandeepbajare@gmail.com
 

Read
« Reply #10 on: June 01, 2011, 04:50:23 PM »
Sumeet
Rise and rise again until lambs become lions...
Plane Lover
Forum Hero

*****

Reputation Power: 7 
Sumeet has no influence.
Offline Offline

City: Nagpur
State: Maharashtra
RC Skills: Beginner
Posts: 540
Join Date: Oct, 2010



Yup...! Agree with "sbajare" in this. Guidance is must....!!!
Logged

<<<<<<<SUMEET>>>>>>>>
 

Read
« Reply #11 on: June 01, 2011, 05:37:52 PM »
alok roxx
Plane Lover
Active Member
**

Reputation Power: 1 
alok roxx has no influence.
Offline Offline

City: Ernakulam
State: Kerala
RC Skills: Beginner
Posts: 26
Join Date: May, 2011



i just wanted to know, can i get more lift by making it a biplane?
Logged
 

Pages: [1]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Phoenix Models Piper Cub « 1 2  All »
Electric Planes
carloz 25 13995 Last post September 09, 2010, 08:40:46 PM
by PankajC
Piper J-3 Cub 50" ARF build log
Electric Planes
Pikle6 10 6594 Last post June 03, 2010, 07:47:57 AM
by Pikle6
Wanted - Piper Cub - 90 size
Wanted
divay99 1 1253 Last post July 27, 2010, 04:10:28 PM
by divay99
mini "Piper Cub
Electric Planes
praveen 3 4148 Last post August 19, 2010, 07:36:37 AM
by praveen
My kit built 1/4 Piper Cub
Gas/Glow/Nitro Planes
paramvir 12 6154 Last post September 07, 2010, 07:13:16 PM
by flyingboxcar