Home
Help
Calendar
Login
Register
New to this forum or RC hobby ? Start here : The RC India Gems !
Welcome Guest, please
login
or
register
.
Reputation
Add to Reputation:
What do you think of this post?
I agree
I disagree
Comment:
RC India
RC Models
Gas/Glow/Nitro Planes
Topic:
Pro and Cons of overpowering
Pages: [
1
]
Go Down
0 Members and 1 Guest are viewing this topic.
Topic Tools
Topic Tools
Print
«
on:
February 27, 2011, 08:57:16 PM »
carloz
Plane Lover
Active Member
Reputation Power: 2
Offline
City: mumbai
State: Maharashtra
RC Skills: Intermediate
Posts: 80
Join Date: May, 2009
Pro and Cons of overpowering
Tweet
hi all,
saw these posts , how smart or safe is this? apparently a lot of ppl seem to be doing this
www.rcuniverse.com/forum/m_7912128/anchors_7912189/mpage_1/key_/anchor/tm.htm#7912189
www.rcuniverse.com/forum/m_7912128/anchors_7922376/mpage_1/key_/anchor/tm.htm#7922376
so according to the above posts, can we put a lets say 90 4stroke on a 46size yak 3d? has anyone here done something like this?
your views plz
regards
carloz
«
Last Edit: February 27, 2011, 11:05:30 PM by anwar
»
Logged
«
Reply #1 on:
February 27, 2011, 09:16:12 PM »
carloz
Plane Lover
Active Member
Reputation Power: 2
Offline
City: mumbai
State: Maharashtra
RC Skills: Intermediate
Posts: 80
Join Date: May, 2009
Re: Pro and Cons of overpowering
googling a bit more shows that using a 61 engine on a 46 model for 3d is common
Logged
«
Reply #2 on:
February 27, 2011, 09:18:04 PM »
anwar
Administrator
Forum Hero
Reputation Power: 141
Offline
City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009
RC India - Flying and racing with open minds !
Re: Pro and Cons of overpowering
I have a 55 2 stroke on a .46 size profile Yak 54. Overpowered, but not to the scale being discussed in these threads.
Remember that 4-stroke engines for equivalent 2 stroke ones are always higher displacement.
Logged
Hangar :
Please see
my introduction
.
RC India forum and me :
About this forum
.
«
Reply #3 on:
February 27, 2011, 10:06:55 PM »
Rajib
Plane Lover
Senior Member
Reputation Power: 3
Offline
City: Kolkata
State: West Bengal
RC Skills: Intermediate
Posts: 234
Join Date: Aug, 2009
Re: Pro and Cons of overpowering
Mr. Anwar may I know what size of propeller you are using for your Yak 54 with 55 2 stroke engine? I am asking you because I have same thing but because of my accident I didn't get chance to fly it yet. I think you're talking about the model which is on your profile picture, if yes then I also have same model with same engine setup.
Logged
Regards,
Rajib Samadder
WhatsApp: +919433344777
e-mail:
rajib_raju@yahoo.com
Member of
AERO SPORTS ASSOCIATION OF BENGAL
Membership Id: ASAB-SR04
Website:
www.asab.org.in
Facebook:
www.facebook.com/ASAB2011
«
Reply #4 on:
February 27, 2011, 11:14:51 PM »
anwar
Administrator
Forum Hero
Reputation Power: 141
Offline
City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009
RC India - Flying and racing with open minds !
Re: Pro and Cons of overpowering
12x3.75 currently. I can go a bit higher, but this seems to be more than enough for now.
Logged
Hangar :
Please see
my introduction
.
RC India forum and me :
About this forum
.
«
Reply #5 on:
February 28, 2011, 12:04:22 AM »
Rajib
Plane Lover
Senior Member
Reputation Power: 3
Offline
City: Kolkata
State: West Bengal
RC Skills: Intermediate
Posts: 234
Join Date: Aug, 2009
Re: Pro and Cons of overpowering
12x3.75 or
APC 12.25x3.75 Sport Propeller?
Logged
Regards,
Rajib Samadder
WhatsApp: +919433344777
e-mail:
rajib_raju@yahoo.com
Member of
AERO SPORTS ASSOCIATION OF BENGAL
Membership Id: ASAB-SR04
Website:
www.asab.org.in
Facebook:
www.facebook.com/ASAB2011
«
Reply #6 on:
February 28, 2011, 12:05:52 AM »
anwar
Administrator
Forum Hero
Reputation Power: 141
Offline
City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009
RC India - Flying and racing with open minds !
Re: Pro and Cons of overpowering
The APC one.
Logged
Hangar :
Please see
my introduction
.
RC India forum and me :
About this forum
.
«
Reply #7 on:
February 28, 2011, 12:11:26 AM »
flying doc
Spadiatrician
Plane Lover
Forum Veteran
Reputation Power: 5
Offline
City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 373
Join Date: Feb, 2010
Re: Pro and Cons of overpowering
It is 12.25 X 3.75. U can also use a 12 X 4 and u'll get the same performance.
I have a ASP 91 on a 60 size plane. Am flying it with an 14 X 6 prop, but will soon try and change it to a 15 X 4 and try some prop hangs.
Just saw a beautiful plane at Amby Valley with a set up most will frown upon.
A 46 size high wing trainer with a 91 4 stroke engine. It does a prop hang just after take off and maybe u could just take ur thumb off the throttle and it would hang on its own.
Doc
Logged
Tiger Sports 40, SPA3D, SPAD Extra all with ASP 52 engines.
SPAD Debonair with OS 46
Turbo Raven 60 with an ASP 91
Next build - Accipiter 91 with DLE 20
Futaba 6EXAP, Futaba 10 CAP
«
Reply #8 on:
February 28, 2011, 09:46:02 AM »
PankajC
Plane Lover
Forum Hero
Reputation Power: 13
Offline
City: Delhi
State: Delhi
RC Skills: Beginner
Posts: 1022
Join Date: Jul, 2009
Learning to Fly
Re: Pro and Cons of overpowering
apart from increase in weight, wing loading and probably shift in CG, any other cons of overpowering?
Logged
Spektrum DX6i | EP Pusher Trainer | EP CUB |
«
Reply #9 on:
February 28, 2011, 09:48:11 AM »
carloz
Plane Lover
Active Member
Reputation Power: 2
Offline
City: mumbai
State: Maharashtra
RC Skills: Intermediate
Posts: 80
Join Date: May, 2009
Re: Pro and Cons of overpowering
another con i think would be to keep a firm hand on the throttle, improper or full thrttle would obviously result in losing the model..
regards
carloz
Logged
«
Reply #10 on:
February 28, 2011, 05:21:05 PM »
flyingboxcar
Plane Lover
Forum Hero
Reputation Power: 22
Offline
City: Chennai
State: Tamil Nadu
RC Skills: Intermediate
Posts: 1768
Join Date: Apr, 2009
Re: Pro and Cons of overpowering
Yes the biggest con would be the increased probability of structural failure in case VNE for the aircraft is exceeded
Logged
If you are really into scale you should be here.
www.rcscalebuilder.com
«
Reply #11 on:
February 28, 2011, 05:23:11 PM »
anwar
Administrator
Forum Hero
Reputation Power: 141
Offline
City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009
RC India - Flying and racing with open minds !
Re: Pro and Cons of overpowering
VNE ?
http://www.rcindia.org/rc-general-topics/rc-jargon-the-mega-list/
Logged
Hangar :
Please see
my introduction
.
RC India forum and me :
About this forum
.
«
Reply #12 on:
February 28, 2011, 06:06:57 PM »
carloz
Plane Lover
Active Member
Reputation Power: 2
Offline
City: mumbai
State: Maharashtra
RC Skills: Intermediate
Posts: 80
Join Date: May, 2009
Re: Pro and Cons of overpowering
en.m.wikipedia.org/wiki/V_speeds?wasRedirected=true
heres a more detailed explanation
regards
carloz
Logged
«
Reply #13 on:
February 28, 2011, 06:41:30 PM »
flyingboxcar
Plane Lover
Forum Hero
Reputation Power: 22
Offline
City: Chennai
State: Tamil Nadu
RC Skills: Intermediate
Posts: 1768
Join Date: Apr, 2009
Re: Pro and Cons of overpowering
In simple terms
VNE
=
V
elocity
N
ot to be
E
xceeded
Logged
If you are really into scale you should be here.
www.rcscalebuilder.com
Pages: [
1
]
Go Up
RC India
RC Models
Gas/Glow/Nitro Planes
Topic:
Pro and Cons of overpowering
« previous
next »
Jump to:
Please select a destination:
-----------------------------
General Topics
-----------------------------
=> Chatter Zone
=> Beginners Zone
=> RC Events
=> RC People
=> RC India Forum
-----------------------------
RC Models
-----------------------------
=> Electric Planes
=> Helis
=> Cars
=> Kites, Trains, Free Flight and All Others
-----------------------------
RC Equipments
-----------------------------
=> Tools, Materials and Building Techniques
=> Radios and Receivers
=> Electric Power
=> Fuel and Engines
=> Batteries and Chargers
=> Servos, Gyros and All Electronics
-----------------------------
RC Models
-----------------------------
=> Gas/Glow/Nitro Planes
-----------------------------
RC Baazar
-----------------------------
=> For Sale
=> Wanted
-----------------------------
General Topics
-----------------------------
=> RC Outlets and Resellers
-----------------------------
RC Baazar
-----------------------------
=> Free, Donations and Sweepstakes
=> Deals and Special Offers
-----------------------------
General Topics
-----------------------------
=> RC Locations and Clubs
=> RC Maneuvers and Skills
-----------------------------
RC Models
-----------------------------
=> Self-designed, DIY and College Projects
-----------------------------
General Topics
-----------------------------
=> RC General Topics
-----------------------------
RC Baazar
-----------------------------
===> For Sale - Completed
===> Wanted - Completed
-----------------------------
RC Models
-----------------------------
=> Boats
=> Multirotors
Related Topics
Subject
Started by
Replies
Views
Last post
Pros and Cons of Ghz Radio systems and Mhz system and their difference
«
1
2
All
»
Radios and Receivers
abhay
40
20388
May 17, 2012, 08:52:49 PM
by
abhay
Water rudder for an air boat-- Pros & Cons?
Boats
AnjanBabu
8
7114
July 03, 2013, 11:36:40 AM
by
AnjanBabu
ISDT Smart Charger Pros & Cons After 6 Months of Usage
Cars
MakerHand
0
1546
September 10, 2018, 08:57:36 AM
by
MakerHand
Loading...
Print
