HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Nov 08, 2001, 07:12 PM
Registered User
MrThermal's Avatar
NE Indiana
Joined Sep 2001
185 Posts
Geared S400 Guru's

I currently fly a S400 w/Gunther 125x110 prop.
This set-up works great w/6 cells. My winter
project includes a S400 thats geared 3/1. The
info generated here leans toward using a 9x6
APC slow flyer prop. Total weight will be 19 oz.
WS 60" Area 360 in.sq. Is this prop going to
pull too much current & shorten my motor life?
Any other prop recommendations (folding preferred)
Or should I just stay with DD and the Gunther?
I normally climb/glide w/the occasainal loop.
Who all makes a 9x6 folder for the S400? What
are you guys using that works good? Thanks to
the faithful E-Zoners
GottaFly my 'lectric
MrThermal is offline Find More Posts by MrThermal
Reply With Quote
Sign up now
to remove ads between posts
Old Nov 08, 2001, 07:47 PM
sb1
Registered User
Charlotte,NC
Joined Jun 2001
235 Posts
MrThermal,
Sounds like you are building an old timer. I fly a geared 6v 400 on various ratios from 2:5/1 to 3:5/1 using a 9x6 and sometimes a 10x7. The 9x6 apc eprop with 2:5/1 provides the best flights with my sureflite cub, usually 10 minute flights on 7 cells. The packs are warm but not hot and the motor is barely warm after flight. My cub weighs 21 oz and has a 42 inch span,fairly draggy airframe but glides reasonably well. Hope this helps.

Don
sb1 is offline Find More Posts by sb1
Reply With Quote
Old Nov 08, 2001, 08:13 PM
TMO
Registered User
TMO's Avatar
Stonington, Ct.
Joined Nov 2001
1,290 Posts
I agree with sb1, but I think technically, you could squeeze out more duration with the 7.2v, albeit with less "punch." Personally, I use the 6v. I like the grauppner "cam" folders (http://www.hobby-lobby.com/camfold.htm) and the 9x5 @ 2.5 gearing, or the 10x8 @ 3-3.5 ratio. Nice spinner too.
Don't worry about current unless the batteries are coming off hot. At 19oz, the prop will unload a bit on the climb. As to life, the 7.2v would last 50+ runs for sure, the 6v maybe less than 50. All strictly in my opinion, of course.

Tim
TMO is offline Find More Posts by TMO
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Yet another P-51: Hobby Lobby's geared s400 Profile P-51 temacc Parkflyers 25 Apr 17, 2003 01:46 PM
Which prop for a geared S400 4.8V race motor? MtnGoat Power Systems 0 Mar 11, 2002 12:28 PM
NEED PLANE for geared s280 and 600AE's LawDog101 Parkflyers 10 Nov 08, 2001 01:45 PM
Geared S280 - There's gotta be a mistake! CheapDad Parkflyers 3 Jul 03, 2001 10:17 AM
Any Handgun guru's? Jim McPherson Life, The Universe, and Politics 102 Jun 20, 2001 07:41 AM