HobbyKing.com New Products Flash Sale
Reply
Thread Tools
This thread is privately moderated by NashVegas, who may elect to delete unwanted replies.
Old Jul 06, 2013, 12:48 PM
Registered User
Joined Oct 2005
213 Posts
I'm switching over to the extra 300 prop on mine (10.5x9) after reading this
http://www.rcgroups.com/forums/showthread.php?t=1748159

42 amps, 550 watts, power 25 1250 on 3s 10.5x9 prop
135boom is offline Find More Posts by 135boom
Last edited by 135boom; Jul 06, 2013 at 12:54 PM.
Reply With Quote
Sign up now
to remove ads between posts
Old Jul 06, 2013, 12:50 PM
Registered User
Joined Oct 2005
213 Posts
I bet 4s is nuts!! Cg has to be a lil off with a 4cell pack I imagine
135boom is offline Find More Posts by 135boom
Reply With Quote
Old Jul 06, 2013, 02:26 PM
Jus 1 more plane is all I need
NashVegas's Avatar
United States, TN, Nashville
Joined Mar 2013
1,026 Posts
Quote:
Originally Posted by 135boom View Post
I bet 4s is nuts!! Cg has to be a lil off with a 4cell pack I imagine
CG is not bad with 4s, but I like mine a little nose heavy. Also, I don't have to worry about nose overs since the two fields I fly at both have nice long paved runways

I haven't tried 4S with the Extra 300 prop with the Power 25. That's how I burned up my stock motor so I'm a bit gun-shy. I'm running the Power 25 with 4S on the stock prop and it really moves out.

I'm currently building a 2nd P47 razorback conversion and putting a big honkin' Hacker A30-10XL v3 900kv motor in it. It will handle the Extra 300 prop, and 4S. Wrenching on it today in hopes of a maiden tomorrow.
NashVegas is online now Find More Posts by NashVegas
RCG Plus Member
Old Jul 10, 2013, 01:47 PM
Registered User
Joined Oct 2005
213 Posts
Well..the stock prop certainly turns more rpm and provides better takeoff power, while the extra 300 prop is a bit faster with better vertical using 3s and power 25.
I will have to buy a new extra prop, because I'm missing a little bit on the ends to be 100% positive with a conclusion, but as if now I actually prefer the stock prop on there
135boom is offline Find More Posts by 135boom
Reply With Quote
Old Jul 10, 2013, 03:13 PM
Jus 1 more plane is all I need
NashVegas's Avatar
United States, TN, Nashville
Joined Mar 2013
1,026 Posts
How did you fit the stock prop on the Power 25? Did you use a prop reamer?
NashVegas is online now Find More Posts by NashVegas
RCG Plus Member
Old Jul 10, 2013, 04:13 PM
Registered User
Joined Oct 2005
213 Posts
Used the stock prop adaptor and stock prop. All fits right on
135boom is offline Find More Posts by 135boom
Reply With Quote
Old Jul 10, 2013, 04:14 PM
Registered User
Joined Oct 2005
213 Posts
Same shaft size on original BL15 and the power 25
135boom is offline Find More Posts by 135boom
Reply With Quote
Old Jul 11, 2013, 08:13 AM
Jus 1 more plane is all I need
NashVegas's Avatar
United States, TN, Nashville
Joined Mar 2013
1,026 Posts
Quote:
Originally Posted by 135boom View Post
Same shaft size on original BL15 and the power 25
Man, what a dummy I am. I've been flying with the wrong motor mount adapter. That's what you get when you have too many motors lying around. To make maters worse, I had to ream out the stock prop to fit the adapter i've been using. I made it fit but it was unbalanced. I didn't notice that it was unbalanced until I put a 4S battery in and hit WOT. The prop began to chatter at high speeds.

Thanks for the heads up. I now have the correct adapter and a brand new stock prop installed. Can't wait to fly it !

Thank God for these forums!
Richard
NashVegas is online now Find More Posts by NashVegas
RCG Plus Member
Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
For Sale Price reduced to 150 pnp on previous parkzone p47 Bnh105 Aircraft - Electric - Airplanes (FS/W) 2 Jun 14, 2014 10:09 PM
For Sale parkzone p47 air frame no motor/esc. Wildcat29 Aircraft - Electric - Airplanes (FS/W) 0 May 18, 2013 11:20 PM
Sold parkzone p47 with flaps and retracts installed 200 shipped! Bnh105 Aircraft - Electric - Airplanes (FS/W) 1 Apr 24, 2013 12:44 PM
For Sale Parkzone P47 with flaps, MINT arik434 Aircraft - Electric - Airplanes (FS/W) 0 Mar 29, 2013 09:20 PM