Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Scale E-Powered Aircraft
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

Scale E-Powered Aircraft Discuss electric powered scale models here.

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 10-05-2014, 09:43 PM   #1
paxskipper
New Electric Flyer
 
paxskipper's Avatar
 
Join Date: Nov 2011
Location: Crossville, TN
Posts: 112
Thanked 4 Times in 4 Posts
Club: Cumberland County RC Club
iTrader: (0)
Friends: (0)
Talking GP RV 4 Conversion

Hello All

I'm looking at doing a GP RV 4 build. The kit is the 54" wingspan 40 size kit (1/5 scale).

My plan is to use an e-Flight Power 46 and a 4 cell battery. I think this will be powerful enough.

This will be my third kit build and I'm going to try for better detail in the build. In particular I'm considering putting lights on the plane, not to fly at night, just to do it for the experience. I'm considering one of the following light systems:
http://www.hobbyking.com/hobbyking/s..._Lamp_Set.html

http://www.scaleflying.com/Scale-LED...anes_p_17.html

http://www.hobbylinc.com/htm/int/intc24331.htm

Installing the light on the top of the fin looks like it will be a challenge to route the wire and not weaken the fin itself. I'm planning on putting some extra internal bracing as I'll need to drill holes in various parts to get the wire into the fuse.

Any comments on the motor, lights or the conversion in general would be appreciated.

Thanks in advance

Steve P.
Now flying a Pulse XT25 and a Dirty Birdi
paxskipper is offline  
  Reply With Quote
Old 10-06-2014, 01:21 AM   #2
CHELLIE
Super Contributor
 
CHELLIE's Avatar
 
Join Date: Oct 2006
Location: Hesperia, So. Calif
Posts: 18,997
View CHELLIE's Gallery13
Thanked 2,244 Times in 2,146 Posts
Club: Chino Renegades RC Flying Club
Awards Showcase

Scratchbuilders Award  Scratchbuilders Award  Ambassador Award  100mph Speed Demon 
iTrader: (4)
Friends: (324)
Default

Hi Thats a nice plane, but maybe a tad heavy for a 4 cell lipo at 6 1/4 Lbs, you may want to use a 5 cell lipo. here is a very good Quality Motor and ESC Combo, these motors are made by Welgard, and at $74.99 it wont break the Bank Use a separate 10 amp UBEC as that plane requires 7 sevos, The Welgard 5330 series has been has been used in F3A competition aerobatics world wide with great success.
with a 5 cell lipo, that should give you around 700 Watts, as the norm is 100 Watts per Airplane Pound, that will be more than enough power.

http://www.greatplanes.com/airplanes/gpma0180.html

SPECIFICATIONS
Stock Number: GPMA0180
Wingspan: 54.65 in (1388 mm)
Wing Area: 631.6 in² (40.8 dm²)
Weight: 5.75-6.25 lb (2.6-2.8 kg)
Wing Loading: 20.9-22.8 oz/ft² (64.1-69.7 g/dm²)
Fuselage Length: 49.6 in (1260 mm)

http://www.graysonhobby.com/catalog/...0gsvvd2jcstir4


http://www.graysonhobby.com/catalog/...ns-p-1217.html


http://www.wattflyer.com/forums/show...highlight=ubec






I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
CHELLIE is offline  
  Reply With Quote
Old 10-06-2014, 01:25 AM   #3
tobydogs
love to build!
 
tobydogs's Avatar
 
Join Date: Jan 2010
Location: nj usa
Posts: 3,380
Thanked 215 Times in 212 Posts
Club: rcrcc rockland county,ny
Awards Showcase

Outstanding Contributor Award 
iTrader: (0)
Friends: (22)
Default

i built this kit twice and the wing is a challenge to get the wing tips to not be warped. the motor i used was eflite 46 with a 100amp castle esc ice . it also is using a 3cell and 2cell zippies in series.

i get strong vertical climb and my build when all is said and done came out heavy. so do try to lighten the kit where possible.

narrow is the place to land...wide is the space to crash....choose the narrow way!
tobydogs is offline  
  Reply With Quote
Old 10-06-2014, 01:32 AM   #4
CHELLIE
Super Contributor
 
CHELLIE's Avatar
 
Join Date: Oct 2006
Location: Hesperia, So. Calif
Posts: 18,997
View CHELLIE's Gallery13
Thanked 2,244 Times in 2,146 Posts
Club: Chino Renegades RC Flying Club
Awards Showcase

Scratchbuilders Award  Scratchbuilders Award  Ambassador Award  100mph Speed Demon 
iTrader: (4)
Friends: (324)
Default

I Would see if Grayson will Exchange/Upgrade the 60 amp ESC for a 80 AMP ESC on the combo, even if there is a little additional cost to be on the safe side

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
CHELLIE is offline  
  Reply With Quote
Old 10-06-2014, 06:00 AM   #5
kyleservicetech
Dennis V
 
kyleservicetech's Avatar
 
Join Date: Apr 2008
Location: Wisconsin, USA
Posts: 8,671
Thanked 760 Times in 739 Posts
Club: www.racinercclub.com (I'm the newsletter editor)
Awards Showcase

Outstanding Contributor Award  3kW  2kW  100mph Speed Demon 
iTrader: (1)
Friends: (21)
Default

Originally Posted by paxskipper View Post
Hello All

I'm looking at doing a GP RV 4 build. The kit is the 54" wingspan 40 size kit (1/5 scale).

My plan is to use an e-Flight Power 46 and a 4 cell battery. I think this will be powerful enough.

This will be my third kit build and I'm going to try for better detail in the build. In particular I'm considering putting lights on the plane, not to fly at night, just to do it for the experience. I'm considering one of the following light systems:
http://www.hobbyking.com/hobbyking/s..._Lamp_Set.html

http://www.scaleflying.com/Scale-LED...anes_p_17.html

http://www.hobbylinc.com/htm/int/intc24331.htm

Installing the light on the top of the fin looks like it will be a challenge to route the wire and not weaken the fin itself. I'm planning on putting some extra internal bracing as I'll need to drill holes in various parts to get the wire into the fuse.

Any comments on the motor, lights or the conversion in general would be appreciated.

Thanks in advance
One of those electric power computer programs such as www.motocalc.com will help in your power selection. Motocalc provides a lot of graphs and so on, but I just look at the predicted rate of climb, watts, watts per pound of airplane, and the "opinions" feature of the program.

The program is free for 30 days, then $39. There are also a lot of other programs out there, some free, some not.

Now days, it's pretty easy to match or even exceed the power output of a glow engine with a quality electric power system. And do it with little or no weight gain in the model.

DennyV
Retired and the days are just too short, busier than ever!
kyleservicetech is offline  
  Reply With Quote
Old 08-18-2015, 03:17 AM   #6
paxskipper
New Electric Flyer
 
paxskipper's Avatar
 
Join Date: Nov 2011
Location: Crossville, TN
Posts: 112
Thanked 4 Times in 4 Posts
Club: Cumberland County RC Club
iTrader: (0)
Friends: (0)
Thumbs up Finally Finished

I have completed and now need to wait for a good day to maiden it.


Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	14
Size:	1.65 MB
ID:	181485  

Steve P.
Now flying a Pulse XT25 and a Dirty Birdi
paxskipper is offline  
  Reply With Quote
Old 08-18-2015, 04:09 AM   #7
tobydogs
love to build!
 
tobydogs's Avatar
 
Join Date: Jan 2010
Location: nj usa
Posts: 3,380
Thanked 215 Times in 212 Posts
Club: rcrcc rockland county,ny
Awards Showcase

Outstanding Contributor Award 
iTrader: (0)
Friends: (22)
Default

she looks great and will fly the same way. i love my rv 4-40 also and they do nice scale flights with good sport aerobatics.

narrow is the place to land...wide is the space to crash....choose the narrow way!
tobydogs is offline  
  Reply With Quote
Old 08-18-2015, 03:56 PM   #8
dahawk
Super Contributor
 
dahawk's Avatar
 
Join Date: Jul 2011
Location: Keller, TX
Posts: 3,772
View dahawk's Gallery6
Thanked 238 Times in 233 Posts
Club: 114th RC Aero Squadron
iTrader: (0)
Friends: (21)
Default

pax,

Looks just like the full scale ! Nicely done. Think about getting one. Too bad they're discontinued. Seagull has a nice 60 size RV-8 that I could drop a 1.2 into:http://www.flyrc.com/sig-announces-t...-8-diamond-di/

I currently have a HURC Powerup 46 , 80 amp esc and 4 std servos looking for a new home. Don't ask why.

Hawk
dahawk is offline  
  Reply With Quote
Old 08-19-2015, 01:05 AM   #9
tobydogs
love to build!
 
tobydogs's Avatar
 
Join Date: Jan 2010
Location: nj usa
Posts: 3,380
Thanked 215 Times in 212 Posts
Club: rcrcc rockland county,ny
Awards Showcase

Outstanding Contributor Award 
iTrader: (0)
Friends: (22)
Default

Tower hobbies has them in stock. on sale for $119.00,which for the wood,hardware canopy, and cowel is a super price for this size kit. i couldn't stand the way the wing is built but once done it's very...very..strong

narrow is the place to land...wide is the space to crash....choose the narrow way!
tobydogs is offline  
  Reply With Quote
Old 08-19-2015, 01:53 AM   #10
dahawk
Super Contributor
 
dahawk's Avatar
 
Join Date: Jul 2011
Location: Keller, TX
Posts: 3,772
View dahawk's Gallery6
Thanked 238 Times in 233 Posts
Club: 114th RC Aero Squadron
iTrader: (0)
Friends: (21)
Default

Thanks Stu,

I'll take a look. Leaning towards an Arf though. The Phoenix Giles
dahawk is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Scale E-Powered Aircraft

Tags
gp rv4 conversion

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
GP Piper Cherokee conversion dahawk General Electric Discussions 7 06-19-2014 02:58 PM
Electric conversion / GP Cherokee dahawk General Electric Discussions 8 03-21-2014 01:29 AM
2 Meter Glider Conversion to Electric - Sample Package AEAJR Beginners 13 02-28-2014 03:20 PM
GP Lancair 60 size electric conversion!! spencer k Sport Planes (Formerly I/C & Gas Conversion) 4 02-06-2012 04:50 PM
Hypothetical Question, To RV or Not to RV Wildflyer Off Topic Chit Chat 1 05-20-2011 07:19 AM


All times are GMT +1. The time now is 06:50 AM.


Powered by: vBulletin
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.40906 seconds with 42 queries