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: October 27, 2012, 12:18:22 AM »
VISHNU KANTH
Plane Lover
Active Member
**

Reputation Power: 1 
VISHNU KANTH has no influence.
Offline Offline

City: THANJAVUR
State: Tamil Nadu
RC Skills: Beginner
Posts: 4
Join Date: Oct, 2012




I know the proportionality relation (regarding measurments) between wing span &horizontail stabiliser, wing span & veritcal stab,wing span& fuselage lenght.......... but  i am confused with selection of wing span ??? ,i want to build rc plane of weight less than 500gms,
I am using thermocol for wing and coro plastic material for fuselage......
so, help me regarding selection of wing span and chord lenght  which can lift my rcplane..........:help:
Logged
 

Read
« Reply #1 on: October 27, 2012, 09:39:36 AM »
xxkrishxx
Plane Lover
Forum Hero

*****

Reputation Power: 10 
xxkrishxx has no influence.
Offline Offline

City: Bangalore/Vellakovil
State: Tamil Nadu
RC Skills: Beginner
Posts: 834
Join Date: May, 2010

FLY HIGH...!!!



Check this out
www.rcindia.org/self-designed-diy-and-college-projects/model-design-software-developed-by-me/msg114866/#msg114866
Logged

BalaKrishnan
Mechanical engineer..

Radio:Spektrum Dx6i | Futaba 6EXP | working on coro Avispad | HK450MT kit | Seagull Boomerang 40 | HK 250GT | Upcoming: Easy Star 2 |
 

Read
« Reply #2 on: October 27, 2012, 12:53:38 PM »
VISHNU KANTH
Plane Lover
Active Member
**

Reputation Power: 1 
VISHNU KANTH has no influence.
Offline Offline

City: THANJAVUR
State: Tamil Nadu
RC Skills: Beginner
Posts: 4
Join Date: Oct, 2012



 thank you sir Smiley , but I want to know how to choose wing span ,chord lenght ,thickness of my airfiol  Huh?,so that it has a good lift (weight around 600gms of total rc plane)
Logged
 

Read
« Reply #3 on: December 10, 2020, 11:50:29 PM »
pranavborade280
Plane Lover
Active Member
**

Reputation Power: 1 
pranavborade280 has no influence.
Offline Offline

City: nandurbar
State: Maharashtra
RC Skills: Intermediate
Posts: 1
Join Date: Dec, 2020



how can we calculate the lenght of fuselage if we know wingspan?
Logged
 

Read
« Reply #4 on: December 11, 2020, 01:34:05 AM »
Free Flight
Plane Lover
Forum Veteran

****

Reputation Power: 6 
Free Flight has no influence.
Offline Offline

City: Mumbai & New Jersey
State: OUTSIDE INDIA
RC Skills: Advanced
Posts: 358
Join Date: Dec, 2011



Perhaps the link below might help you.

I would pick a known RC model airplane and use its information when designing my own for the first time

https://www.radiocontrolinfo.com/rc-calculators/rc-airplane-design-calculator/

or get this book :

https://alumni.columbia.edu/content/rcadvisors-model-airplane-design-made-easy-simple-guide-designing-rc-model-aircraft-or

Good luck to you
Logged
 

Read
« Reply #5 on: December 11, 2020, 01:39:02 AM »
Free Flight
Plane Lover
Forum Veteran

****

Reputation Power: 6 
Free Flight has no influence.
Offline Offline

City: Mumbai & New Jersey
State: OUTSIDE INDIA
RC Skills: Advanced
Posts: 358
Join Date: Dec, 2011



I know the proportionality relation (regarding measurments) between wing span &horizontail stabiliser, wing span & veritcal stab,wing span& fuselage lenght.......... but  i am confused with selection of wing span Huh? ,i want to build rc plane of weight less than 500gms,
I am using thermocol for wing and coro plastic material for fuselage......
so, help me regarding selection of wing span and chord lenght  which can lift my rcplane..........Help Me

it is the wing area, or the wing loading that you are after.

try this :
https://modelflight.com/how-to/wing-loading-charts-for-model-airplanes/

Many others are trying to figure out the answers similar to your question:

https://www.rcgroups.com/forums/showthread.php?1517470-What-is-an-acceptable-wing-loading
Logged
 

Read
« Reply #6 on: December 14, 2020, 08:05:37 PM »
Jassi_70953
Plane Lover
Active Member
**

Reputation Power: 1 
Jassi_70953 has no influence.
Offline Offline

City: New Delhi
State: Delhi
RC Skills: Intermediate
Posts: 23
Join Date: Nov, 2020



Hii, my views is, dont design own plane, try to download plans and then built it. As these plans are already made by some experts. U can design ur model own, but it didnt fly very well and doesnot have any good flying characteristics. Rest is ur choice.
Logged
 

Read
« Reply #7 on: December 15, 2020, 08:51:28 AM »
Free Flight
Plane Lover
Forum Veteran

****

Reputation Power: 6 
Free Flight has no influence.
Offline Offline

City: Mumbai & New Jersey
State: OUTSIDE INDIA
RC Skills: Advanced
Posts: 358
Join Date: Dec, 2011



Hii, my views is, dont design own plane, try to download plans and then built it. As these plans are already made by some experts. U can design ur model own, but it didnt fly very well and doesnot have any good flying characteristics. Rest is ur choice.

Agreed. good recommendation. Leave the design after you are well versed in RC  flying.
Logged
 

Read
« Reply #8 on: December 15, 2020, 10:15:49 AM »
Jassi_70953
Plane Lover
Active Member
**

Reputation Power: 1 
Jassi_70953 has no influence.
Offline Offline

City: New Delhi
State: Delhi
RC Skills: Intermediate
Posts: 23
Join Date: Nov, 2020



Yes, dear i have many plans in pdf format. All are designed by professionals. I have trainer plans also made from depron.
Logged
 

Read
« Reply #9 on: December 15, 2020, 08:50:13 PM »
SI74
Plane Lover
Forum Hero
*****

Reputation Power: 7 
SI74 has no influence.
Offline Offline

City: Muvattupuzha
State: Kerala
RC Skills: Beginner
Posts: 561
Join Date: Jun, 2015



If you are building one of your own design , this link might help

https://web.archive.org/web/20160920044337/http://flbeagle.rchomepage.com/software/webocalc_1.7.6/html/webocalc_metric.html
Logged
 

Read
« Reply #10 on: December 18, 2020, 07:49:42 PM »
v2 eagle
AK
Plane Lover
Forum Hero

*****

Reputation Power: 12 
v2 eagle has no influence.
Offline Offline

City: chennai
State: Tamil Nadu
RC Skills: Beginner
Posts: 1178
Join Date: Jun, 2013



A little bit of disagreement here. IMHO, the degree of learning goes in decending order like this,
5. Build a plane from scratch using the thumbrule
4. Build a plane from plans
3. Build a plane from Kit
2. Build a plane from arf
1. Buy a PNF and fly

Each degrees of going up teaches us something that we cannot unlearn forever. and while we get comfortable with lower levels, we hardly bother to move upwards for many reason. so i suggest to build a plane from scratch using just the thumb rules and it may not fly good at first or at all. However it will teach you things which will never allow you to make the mistakes.

 check this post here: http://www.rcindia.org/rc-locations-and-clubs/where-to-fly-in-chennai/msg172539/#msg172539

Ive been building and flying planes using this for years and things never go wrong. To add more, this will help you even if you are flying a ARF [plane to check things to avoid a grave crash.

Thanks
Ashok.P
Logged

 

Read
« Reply #11 on: December 18, 2020, 10:08:35 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 61 
K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 5165
Join Date: Jan, 2012



A little bit of disagreement here. IMHO, the degree of learning goes in decending order like this,
5. Build a plane from scratch using the thumbrule
4. Build a plane from plans
3. Build a plane from Kit
2. Build a plane from arf
1. Buy a PNF and fly

Each degrees of going up teaches us something that we cannot unlearn forever. and while we get comfortable with lower levels, we hardly bother to move upwards for many reason. so i suggest to build a plane from scratch using just the thumb rules and it may not fly good at first or at all. However it will teach you things which will never allow you to make the mistakes.

 check this post here: http://www.rcindia.org/rc-locations-and-clubs/where-to-fly-in-chennai/msg172539/#msg172539

Ive been building and flying planes using this for years and things never go wrong. To add more, this will help you even if you are flying a ARF [plane to check things to avoid a grave crash.

Thanks
Ashok.P

Interesting view point.

May I offer a different view?

Suppose you wanted to learn to ride. Would you start with:
1. A Harley
2. A Bullet
3. A Hero Honda
4. A Scooty
5. A bicycle?

Next, let’s suppose all you wanted was to learn to ride a bicycle. Would you:

5. Build it from scratch using the thumbrule
4. Build it from plans
3. Build it from a Kit
2. Assemble it
1. Buy a ready made one?

So perhaps it depends on what you are trying to achieve. The two extremes of which are:
1. Learning to fly RC quickly, safely without bothering much about the fundamentals, or expense
2. Learning the basics and progressing step by step to RC with least wasted expenditure

To each his own, I guess.

Regards
Logged
 

Pages: [1]   Go Up
Jump to: