SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Mar 23, 2005, 09:39 AM
Hemet, California
kctrading's Avatar
United States, CA, Hemet
Joined Mar 2005
1,441 Posts
37" Piper Cub, upgrade motor, prop etc?

I purchased a Piper Cub from ebay about a month ago and have flown it three times with great success but it needs a bit more power to gain more height.

http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN%3AIT&rd=1

Currently has the following:

Stock 380 Motor with 7" plastic prop and a 600mah AAA battery pack

I recently purchased a 1050mah 2/3A battery pack which is the max size that will fit into the battery box....CG should be about the same as I had to add 1/2oz to the eng crowl to keep it from wanting to stall at WOT but will recheck this before the next flight.

I want to use the Venom VMG Fireball Micro 370 motor but I am not sure what size prop and pitch to run and if I should keep it direct dirve "as it is now" or go with a 3.1 gear drive which will also require a bigger prop.

http://www2.towerhobbies.com/cgi-bin...&I=LXHUJ0&P=ML

Thanks for any suggestions!

Ken
Hemet, CA

P.S. Going to give this plane to my soon as I am saving up for the following...

SuperStar EP ARF w/Ailerons 48.75

Going to use the following JustGoFly 400DF Brushless motor
http://www.justgofly.rchomepage.com/tech400DF_DD.htm

with the following speedcontroler...
http://www.justgofly.rchomepage.com/Escs.htm


iRate 3100 3S Lipo battery 45x130x20mm @7.6oz from
http://www.unipros.com/cbpsite/fpack...sion_id=276716
kctrading is offline Find More Posts by kctrading
Last edited by kctrading; Mar 23, 2005 at 09:34 PM.
Reply With Quote
Sign up now
to remove ads between posts
Old Mar 23, 2005, 11:27 AM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
Your links don't work, but I assume it's similar to this: http://cgi.ebay.com/ws/eBayISAPI.dll...965303959&rd=1

What, 24oz or so?
8 cells?

I'd consider the GWS EPS400C-A geared drive, myself: http://www.balsapr.com/catalog/motor...ductId=T704773

Most of the 'hot' can motors are simply re-timed to run correctly. See some of the posts from DeanInMilwaukee on the 400 motor timing...
Gene Bond is offline Find More Posts by Gene Bond
Reply With Quote
Old Mar 23, 2005, 09:37 PM
Hemet, California
kctrading's Avatar
United States, CA, Hemet
Joined Mar 2005
1,441 Posts
Quote:
Originally Posted by Gene Bond
Your links don't work, but I assume it's similar to this: http://cgi.ebay.com/ws/eBayISAPI.dll...965303959&rd=1

What, 24oz or so?
8 cells?

I'd consider the GWS EPS400C-A geared drive, myself: http://www.balsapr.com/catalog/motor...ductId=T704773

Most of the 'hot' can motors are simply re-timed to run correctly. See some of the posts from DeanInMilwaukee on the 400 motor timing...
I fixed all the url's by using the hyperlink insert tool...

Model is around 18oz with stock 600mah battery and 20oz with 1050mah batery. 7 cell at 8.4volts

Ken
kctrading is offline Find More Posts by kctrading
Reply With Quote
Old Mar 24, 2005, 10:25 PM
Hemet, California
kctrading's Avatar
United States, CA, Hemet
Joined Mar 2005
1,441 Posts
Has anyone here done this upgrade to a smaller plane...any before or after videos or where I may find some???

Ken
kctrading is offline Find More Posts by kctrading
Reply With Quote
Old Mar 24, 2005, 11:33 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
I took a 480DD plane and moved it to an EPS-400C-A with an 8x6 prop, switched from 8 to 10 sells, and had incredible performance It was an SR x-250 (Balsa). Since sold it to a fellow E-zoner...
Gene Bond is offline Find More Posts by Gene Bond
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question What motor / prop / battery for 2 & 3/8 lbs Piper Cub? magic612 Electric Plane Talk 16 May 15, 2006 12:54 PM
DD upgrade motor and prop mounting rohan Micro Helis 9 Jun 09, 2005 02:29 PM
24" Piper Cub in need of Engine, etc. Cubby Boy Power Systems 13 Dec 04, 2002 03:53 AM
FS: .26 Piper Cub RTF, engine, radio etc.. ben1000 Aircraft - Fuel - Airplanes (FS/W) 0 Aug 28, 2002 03:03 PM
FS: Charger, Flight Simulator, Battery pack & Motor & Folding prop, etc rck Aircraft - Electric - Airplanes (FS/W) 3 Nov 29, 2001 05:26 PM