Go Back  RCU Forums > RC Airplanes > Seaplanes
Reload this Page >

Northstar mods - Tell me what you think

Seaplanes Aircraft that typically take off and land on water...radio control seaplane discussions are in here.

Northstar mods - Tell me what you think

Reply

Old 06-14-2019, 04:12 PM
  #601  
mogman
 
mogman's Avatar
 
Join Date: Jan 2006
Location: Pitt Meadows, BC, CANADA
Posts: 848
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hi Guys.

I'm building another N'Star and am contemplating going electric. I'm hoping for at least the same performance as the glow power, more would be much better lol.

I've done my head in reading up on motors, KV's rpms etc...very confusing for a non electric person. I look up an e-motor to rplace a .46 and they all turn big 14-15" props.

I would like to have an e-motor to replace a .46-.50 glow, and as you know the N'Star is limited to a 10" prop (I'm building mine stock) I have a couple of Glacier 5S 4000, 45C packs (new) and a Turnigy Plush 100A esc.(new) I'm not adverse to getting different batteries if necessary for a decent flight time 8-10 mins @ varying throttle settings.

I will be using a separate Life RX pack.

Can someone head me in the right direction so my head doesn't explode from all the numbers?

Thanks, Guys.

Cheers,
Dave.
mogman is offline  
Reply With Quote
Old 06-14-2019, 04:41 PM
  #602  
rcboone2000
 
Join Date: Jun 2007
Location: winfield, KS
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Northstar mods

I used a turinigy 5055 700 kv with a 3 blade prop. You can either raise the pod or do what I had to do put a cut out for the prop.Also i put the servos in the wing and the rudder in the pod.I love the plane takes off into nearly vertical on a 6 cell 2650 battery
rcboone2000 is offline  
Reply With Quote
Old 06-14-2019, 04:45 PM
  #603  
rcboone2000
 
Join Date: Jun 2007
Location: winfield, KS
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

rcboone2000 is offline  
Reply With Quote
Old 06-14-2019, 06:16 PM
  #604  
mogman
 
mogman's Avatar
 
Join Date: Jan 2006
Location: Pitt Meadows, BC, CANADA
Posts: 848
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

What size prop are you using?
mogman is offline  
Reply With Quote
Old 06-14-2019, 07:20 PM
  #605  
rcboone2000
 
Join Date: Jun 2007
Location: winfield, KS
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Northstar

I think its a 12x8 3 blade.The motor calls for a 13x6 or 13x8 2 blade so i dropped 1 inch in dia.
rcboone2000 is offline  
Reply With Quote
Old 06-15-2019, 05:16 AM
  #606  
mogman
 
mogman's Avatar
 
Join Date: Jan 2006
Location: Pitt Meadows, BC, CANADA
Posts: 848
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Thank you for the info.

Dave.
mogman is offline  
Reply With Quote
Old 06-15-2019, 12:34 PM
  #607  
rcboone2000
 
Join Date: Jun 2007
Location: winfield, KS
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by mogman View Post
Thank you for the info.

Dave.
Are you building a new kit. If you need pictures of my mods let me know
rcboone2000 is offline  
Reply With Quote
Old 06-15-2019, 02:54 PM
  #608  
mogman
 
mogman's Avatar
 
Join Date: Jan 2006
Location: Pitt Meadows, BC, CANADA
Posts: 848
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I've built 2 N'Stars before this one. Both had various mods and flew great, it was the piloting that left a little to be desired..lol
My main concern is the e-power.

I looked up a replacement for a .46 glow, but it swings a 14-15" prop.
How do you figure out what motor to use to swing a 10" prop at high rpms.

All very confusing...to me at least.

Dave.
mogman is offline  
Reply With Quote
Old 06-15-2019, 07:26 PM
  #609  
rcboone2000
 
Join Date: Jun 2007
Location: winfield, KS
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

You have look at the kv ihe higher the kv the more rpm with a smaller prop.I would guess you would need somewhere in the 1000 kv range for a 10 inch prop.My plane weight is around 8 lbs with a turinigy 5055 700kv it gps rite at 100 mph level. The motor i have and the way it is proped i pull 50 amp static and between 430 to 470 watts and half throttle around 270 and 300 watts. I get about 6 min. flight time at mixed throttle settings
rcboone2000 is offline  
Reply With Quote
Old 06-16-2019, 05:43 AM
  #610  
mogman
 
mogman's Avatar
 
Join Date: Jan 2006
Location: Pitt Meadows, BC, CANADA
Posts: 848
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Thank you.
That is the kind of information I'm looking for.

Dave.
mogman is offline  
Reply With Quote

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


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service