Electric Training If you are new to electric learn more about them here or ask questions.

Prop change to plane slow down ?

Reply

Old 09-26-2012, 02:36 AM
  #1  
reelquick
Senior Member
Thread Starter
 
Join Date: Feb 2003
Location: Clifton Heights, PA
Posts: 277
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Prop change to plane slow down ?

May be I worded it wrong but , I have e flight 25 on a 40 size trainer with a 4000 Mah batt, This thing moves . I run out of run way. More pitch , Larger prop to get air born quicker ?
I now have a wood 10 x 8.
reelquick  is offline  
Reply With Quote
Old 09-27-2012, 03:47 AM
  #2  
Dr Kiwi
Senior Member
 
Join Date: Dec 2002
Location: Chattanooga, TN
Posts: 2,198
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Prop change to plane slow down ?

To keep amp draw within limits (and to generate more thrust) use a larger diameter, lower pitched prop ......you may be better to have a true electric APC E prop rather than a wooden (is it a glow?) prop.
Dr Kiwi is offline  
Reply With Quote
Old 09-27-2012, 08:15 AM
  #3  
reelquick
Senior Member
Thread Starter
 
Join Date: Feb 2003
Location: Clifton Heights, PA
Posts: 277
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Prop change to plane slow down ?

It say`s 10 x 8 electric on the prop, I have a pic on this forum about plane ID. It is electric.
reelquick  is offline  
Reply With Quote
Old 09-27-2012, 03:22 PM
  #4  
aeajr
My Feedback: (2)
 
aeajr's Avatar
 
Join Date: Jan 2003
Location: Long Island, NY
Posts: 8,567
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Prop change to plane slow down ?


ORIGINAL: reelquick

May be I worded it wrong but , I have e flight 25 on a 40 size trainer with a 4000 Mah batt, This thing moves . I run out of run way. More pitch , Larger prop to get air born quicker ?
I now have a wood 10 x 8.
Based on what you told us you are under powered and you have tthe wrong prop on it.

You have a 25 motor on a 40 size plane.Likely not a good match.

We need to knwo the voltage of the battery pack and the weight of the plane, all-up, ready to fly.

Recommended Prop Range: 11x8 to 14x7

So why do you ahve a 10X8 prop on that motor? The 14X7 would be for a 3S pack and an 11X8 would be for a 4S pack.


Overview



The Power 25 is designed to deliver clean and quiet power for 25-size glow engine for sport and scale airplanes weighing 3 to 5.5 pounds (1.4 to 2.5 kilograms), 15-size 3D airplanes up to 3.5 pounds (1.6 kilograms), or models requiring up to 600 watts of power. It's an especially good match for 4- to 5-pound scale airplanes on the market and models such as the Sig Kadet LT-25, Sig Frazer, Lanier Extra 3.25, Global Tequila Sunrise 25 and Great Planes Taylorcraft 20.




Product Specifications

Type: Brushless outrunner
Size: Replacement for 25-size glow engine
Bearings or Bushings: One 5 x 14 x 5mm Bearing, and Two 5 x 11 x 4mm Bearings
Wire Gauge: 14
Recommended Prop Range: 11x8 to 14x7
Voltage: 12–16.8
RPM/Volt (Kv): 870
Resistance (Ri): .03 ohms
Idle Current (Io): 2.40A @ 10V
Continuous Current: 32A
Maximum Burst Current: 44A (15 sec)
Cells: 3S-4S Li-Po or 10–14 Ni-MH/Ni-Cd
Speed Control: 40–45A brushless
Weight: 190 g (6.7 oz)
Overall Diameter: 35mm (1.40 in)
Shaft Diameter: 5mm (.20 in)
Overall Length: 54mm (2.10 in)

aeajr is offline  
Reply With Quote
Old 09-27-2012, 03:40 PM
  #5  
reelquick
Senior Member
Thread Starter
 
Join Date: Feb 2003
Location: Clifton Heights, PA
Posts: 277
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Prop change to plane slow down ?

I have no instruction`s.
I have no idea what kind of plane it is ?
I have the 25 E-light motor A 40 jettie esc and a 4000 11.1 v Mah batt.
I called around to LHS and Box stores, and unless you have all of there components...They can`t help me.
Just trying to figure out what kind of plane it is as a starting point.

The gentleman who started this project ( he had 50 planes in his estate) Mounted this motor in the fire wall and took the time to cover it in balsa and mono.
Witch Leeds me to believe he was confident in the set up? Or he was just nuts like the rest of us.LOL
Picked up a couple of larger props and we`ll see if they make a difference.

Check out my other thread in the Beginner Forum Plane ID,
Just looking for a starting point.
I know you guy`s live this stuff, I`m a Noob to the sparkey world, But love it!
Thank You
reelquick  is offline  
Reply With Quote
Old 09-27-2012, 03:42 PM
  #6  
reelquick
Senior Member
Thread Starter
 
Join Date: Feb 2003
Location: Clifton Heights, PA
Posts: 277
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Prop change to plane slow down ?

THANK YOU FOR THE REPLY !!!!!
Just got in the door.......... Let me read your info and get back to you with the correct info that I have.
Thank You for taking the time.
reelquick  is offline  
Reply With Quote
Old 09-27-2012, 04:12 PM
  #7  
reelquick
Senior Member
Thread Starter
 
Join Date: Feb 2003
Location: Clifton Heights, PA
Posts: 277
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Prop change to plane slow down ?

Plane weighs 4.61 pounds ready to fly. All batts, servos , esc. I put 3 inch foam wheels on it, and PU some larger props.
12 inch prop will be about a half inch off the ground, I have a 10 x 8 on it because thats what it came with.
I have an 11.5 x 5 grey nylon prop that I can try ? But like I said I have 1 other post with pics that might make this easier.
reelquick  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