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: September 24, 2013, 12:01:09 PM »
maveric
Plane Lover
Active Member
**

Reputation Power: 2 
maveric has no influence.
Offline Offline

City: chennai
State: Tamil Nadu
RC Skills: Beginner
Posts: 58
Join Date: Oct, 2009




I BOUGHT A SKY SURFER FROM R/C BAAZAR, BUT IT DOES NOT FLY AT ALL IT JUST NOSE DIVES LIKE A STONE...I HAVE MOVED THE BATTERY TO THE REAREST OF POSTIONS BUT STILL CG is not proper as the aircaft droops over the nose, please suggest how I can make it  alittle tail hevery so that it maitians some aerodynamics. (I must mention that I have put a hard tape in the nose and fuslage).
Logged
 

Read
« Reply #1 on: September 24, 2013, 12:46:30 PM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



What battery are you using? The Skysurfer usually balances out with a 3S 2.2Ah without any issues.

Try adding some ballast weight at the furtherest point towards the tail end.
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Read
« Reply #2 on: September 24, 2013, 12:52:49 PM »
atulrajguru9
Plane Lover
Forum Veteran
****

Reputation Power: 5 
atulrajguru9 has no influence.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 337
Join Date: Nov, 2010



plz try to get help from local flyer. There are so many things those can go wrong on first flight. You should join local club.

http://www.rcindia.org/rc-locations-and-clubs/mega-list-of-rc-fields-locations-clubs-in-india/
Logged
 

Read
« Reply #3 on: September 24, 2013, 04:30:47 PM »
manojswizera
Plane Lover
Forum Hero

*****

Reputation Power: 18 
manojswizera has no influence.
Offline Offline

City: AURANGABAD
State: Maharashtra
RC Skills: Beginner
Posts: 1336
Join Date: Oct, 2011



@ Maveric.
this is very rare, that skysurfer is nose heavy. mine also balance with 2.2 3s lipo. that means by putting a lot of nose weight.
try to balance the plane at 60mm from leading edge.
see if there are some washers or dead weight at nose. usually other similar pusher planes have dead nose weight,like Bixler or axn. Remove those if they exits in your plane.
if still its nose heavy take some rs 5 coins. stick them together. and put at tail boom.

post some pics of your plane.
Logged

Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.
 

Read
« Reply #4 on: September 24, 2013, 05:25:00 PM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



if the CG was at the recommended location prior to the launch, then the problem is not the CG it is the thrust line and power, since you don't want to read, search, and find out, let me take that pain for you and point out a few threads/posts for you


first one (if you have time and care to read, read this entire thread),

..
13. If launching SkySurfer or a easy star kinda aeroplane, DO NOT make the mistake of chucking with full power, she will surely pitch down viciously and you give excessive correction, pitch up and crash. THE KEY is open power only so much that she is tending to slightly sliding out of your hand. chuck it from a higher to lower ground if possible and available, if not it is fine. During Chuck ensure wings are level and chuck it like a javelin. after chuck slowly open power and climb away GENTLY.

Second One

Build is easy, points to bear in mind are:-....

(e) CG is perfect at 60 MM, RX at CG, 3S 1300 mah up front in the front compartment, no nose/tail weight needed


Lastly, if thou haveth time, care go through this thread ?

http://www.rcindia.org/rc-general-topics/basic-aerodynamics-for-rc-flying/
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can’t get it wrong.
 

Read
« Reply #5 on: September 24, 2013, 05:49:08 PM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



if still its nose heavy take some rs 5 coins. stick them together. and put at tail boom.
The hobby is expensive enough already Giggle
You can rather use automotive wheel balancing weights, they come with a glue coated surface.
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Read
« Reply #6 on: September 24, 2013, 05:50:44 PM »
kumardasai
Heli Lover
Forum Veteran

****

Reputation Power: 5 
kumardasai has no influence.
Offline Offline

City: Hyderabad
State: Andhra Pradesh
RC Skills: Intermediate
Posts: 275
Join Date: Sep, 2011

Perfect Landing



Don't worry, spare parts are available in the same RCBazaar......
Logged

Blazer, Sky Surfer V3, Fun Jet, WLToys V913, WLToys V977, HiSky HCP 100S, Skyartech Wasp V3.
 

Read
« Reply #7 on: September 24, 2013, 05:55:40 PM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



http://www.rcindia.org/electric-planes/sky-surfer-from-rc-bazaar-build-and-fly-log/msg98379/#msg98379

see my basic aerodynamics thread, conventional thrust drag line is a nose up couple, ( http://www.rcindia.org/rc-general-topics/basic-aerodynamics-for-rc-flying/msg58078/#msg58078 ) whereas Sky Surfer/easy star/easy star II/ Shikra like aeroplane which has high mounted engine has a reversed thrust drag couple, i.e on opening power they will go nose down, at take off this couple could be more than what elevator can handle owing to low forward speed, at launch , therefore power should be just enough for launch and slowly open power, if you launch with full power she might slam the ground.
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can’t get it wrong.
 

Read
« Reply #8 on: September 24, 2013, 06:18:22 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



Frankly Gusty Saheb, on reading through, it seems to be newbie blues. Young maveric, enlist the help of an experienced pilot, and let us know the result (Note: An actually experienced Pilot, not just someone who claims to be one Cheesy)
Logged

 

Read
« Reply #9 on: September 24, 2013, 06:57:19 PM »
raja_mastana
Heli Lover
Forum Hero

*****

Reputation Power: 12 
raja_mastana has no influence.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 925
Join Date: May, 2010

Trex 450 DFC



hey this reminds me of my maiden easy star flight - same behaviour as you have mentioned. Turns out, I had the elevator reversed
Logged

ALIGN 450 PRO DFC 6S Belt Driven | Polaris BEC | Nano-Tech 6S 1300mAH | Robird G31 | 325D Pro | TGY-306G HV | KST 515MG | K-Force 40A | NTM Rotor Drive 1700kv

Multiplex Easy Star 2 | Multiplex Mentor | Nissan 350Z Endless Tamiya TT-01D
 

Read
« Reply #10 on: September 24, 2013, 08:09:09 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 85 
sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.sanjayrai55 is a force to reckon with.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 8337
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



 Thumbs Up Sujit!

Maveric: get help
Logged

 

Read
« Reply #11 on: September 25, 2013, 05:51:14 AM »
hangingtough
Heli Lover
Forum Hero
*****

Reputation Power: 10 
hangingtough has no influence.
Offline Offline

City: delhi
State: Delhi
RC Skills: Intermediate
Posts: 634
Join Date: Sep, 2009



Nose dive is common in sky surfer
1. Low throttle, it should be 70 %
2. Throw against the wind, very sensitive
3. Run for about 10 m and then throw
4. There is definately power issue, motor or prop is wrong or battery is not sufficient


I tried to fly with 2s, it will not take off at all
Logged
 

Read
« Reply #12 on: September 25, 2013, 07:30:00 AM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect




2. Throw against the wind, very sensitive


...into the wind, please

PS
check, recheck before your advice, atleast i do that Grin
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can’t get it wrong.
 

Read
« Reply #13 on: September 25, 2013, 12:55:13 PM »
hangingtough
Heli Lover
Forum Hero
*****

Reputation Power: 10 
hangingtough has no influence.
Offline Offline

City: delhi
State: Delhi
RC Skills: Intermediate
Posts: 634
Join Date: Sep, 2009



ha ha,

Against the wind has another meaning ... lets recheck
Logged
 

Read
« Reply #14 on: September 25, 2013, 02:33:38 PM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



may be i am wrong ! following point is worth considering.

for example
"i deposit money against an account", therefore against could be construed differently, therefore in aviation, we use into and away from wind, so that the meaning is covered unambiguously
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can’t get it wrong.
 

Read
« Reply #15 on: September 25, 2013, 02:57:26 PM »
VTOLkarthik
Plane Lover
Forum Veteran
****

Reputation Power: 4 
VTOLkarthik has no influence.
Offline Offline

City: Bengaluru
State: Karnataka
RC Skills: Expert
Posts: 315
Join Date: Jul, 2012



you can as well say it as along the wind and against the wind....
Logged
 

Read
« Reply #16 on: September 26, 2013, 05:35:00 PM »
sidd1994
Plane Lover
Active Member
**

Reputation Power: 2 
sidd1994 has no influence.
Offline Offline

City: Kolkata
State: West Bengal
RC Skills: Advanced
Posts: 77
Join Date: Jun, 2013


Re:

Same thing happen with me  (recently) ... I was very confused... After 4 or 5 nose dives I realized that there was no wind blowing in my ground so had to chuck it a bit harder(parallel to the ground) ... Took about 10 meters of 70 percent throttle to gain altitude..

Sent from my GT-N7100 using Tapatalk 4
Logged

Sky Surfer|wilga|mustang P-51D (flitetest)| DIY depro Trojan/GreatPlanes RV4/Dynam Primo
 

Read
« Reply #17 on: September 26, 2013, 11:23:59 PM »
nairitb
Plane Lover
Forum Veteran
****

Reputation Power: 4 
nairitb has no influence.
Offline Offline

City: Guwahati
State: Assam
RC Skills: Intermediate
Posts: 285
Join Date: May, 2013



I had same issues with my Sky Surfer. Thanks to VC & Sundaram ji, I found out the problems. Firstly check your props. The sharp edge should not be facing the front of the plane. And secondly, as others said, dont launch at full throttle. I now hand launch it 50-60% throttle giving it a hard throw at an angle of 20-30 degrees. Flies beautifully. Coincidentally, I use the same setup as shown in the "Build Video (Courtesy Naren - Rc Modelling and Flying India)". You can find it in the Sky Surfer V2 product page at rcbazaar.
Logged
 

Pages: [1]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Rebuild your crashed foamy jet
RC General Topics
jerry 5 4126 Last post January 19, 2010, 03:54:59 PM
by sunk?
Crashed badly..
Electric Planes
pankaj 1 3383 Last post March 26, 2011, 09:58:47 AM
by ankitbaid
maiden flight....and it crashed..
Beginners Zone
vArun452 17 12342 Last post August 20, 2012, 10:05:18 AM
by dhaksha_dx
crashed the sky surfer motor not working.
Electric Planes
maveric 0 2519 Last post March 10, 2014, 10:17:28 AM
by maveric
Cx20 quadcopter crashed and damaged body
Multirotors
krupashree 8 3637 Last post April 21, 2016, 11:38:25 AM
by Rathi