Viper 500 ARF and YS 45fr?  
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All Forums >> RC Airplanes >> Extreme Speed Prop Planes >> Viper 500 ARF and YS 45fr? Page: [1]

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Viper 500 ARF and YS 45fr? - 5/20/2008 10:26:11 PM   
bbagle1


 

Posts: 412
Joined: 1/15/2007
From: baton rouge, LA, USA
Status: online 		My buddies and I are putting together some planes to see who will have the fastest. I have a nice YS 45fr with pipe looking for a home and I can't seem to decide. The viper looks very nice but how fast would it be with this motor? My other choice would be a Modeltech funfighter p-51. It is a 43" pylon plane made for a .25-.36. If anyone has any input about either of these plane/motor combos it would be greatly appreciated. If you have any other planes that are cheap but fast and would work with my motor please let me know. BTW only arf's and only planes with wheels.
       Post #: 1

RE: Viper 500 ARF and YS 45fr? - 5/21/2008 12:24:23 AM   
freakingfast


 

Posts: 810
Joined: 1/3/2005
From: mather, CA, USA
Status: offline 		Between 140 and 150mph with a APC 9X9 and on tune for the Viper. It will be quick.

_____________________________

When in doubt, give it full power. The smaller
pieces fit easier in the bag! Revver Bro #201

(in reply to bbagle1)
       Post #: 2

RE: Viper 500 ARF and YS 45fr? - 5/21/2008 1:11:24 AM   
airraptor


 

Posts: 297
Joined: 1/26/2004
From: fairfield, CA, USA
Status: offline 		the model tech fun fighters we have seen have the wing's ot tail fold on them in the turns with webra 36's on them.

the guys at the club use the 100 dollar: spitfire or p-40's.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXRPX9&P=0

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXSRP9&P=0

they do around 125-130 and can turn very well at these speeds with just a layer of cloth on the wing joint. the engine they use spin bolly 9.5x6 props around 19,000-20,000. webra .32, .36, O.S 32, O.S 37 heli. all of course modified and retimed to run on the jett / nelson mufflers.
once you start getting past 135 though you will need to redo the tail feathers with two carbon strips in the tail or redo them completely.

(in reply to freakingfast)
       Post #: 3

RE: Viper 500 ARF and YS 45fr? - 5/21/2008 6:23:47 AM   
vertical grimmace


 

Posts: 1145
Joined: 3/13/2004
From: ft collins , CO, USA
Status: offline 		I vote for the Viper with that engine. Surprisingly fast plane.

(in reply to airraptor)
       Post #: 4

RE: Viper 500 ARF and YS 45fr? - 5/21/2008 6:36:39 AM   
idigrc2


 

Posts: 13
Joined: 9/23/2007
From: Anderson, CA, USA
Status: offline

< Message edited by idigrc2 -- 5/21/2008 6:40:02 AM >

(in reply to vertical grimmace)
       Post #: 5

RE: Viper 500 ARF and YS 45fr? - 5/21/2008 6:39:18 AM   
idigrc2


 

Posts: 13
Joined: 9/23/2007
From: Anderson, CA, USA
Status: offline 		I have the rear exhaust version on my scat cats. The last one I built was bumping 150, 8.75x8nn, Mac nitro pipe and 40% nitro. Peak Rpm was 18,800.

(in reply to vertical grimmace)
       Post #: 6

RE: Viper 500 ARF and YS 45fr? - 5/21/2008 3:54:09 PM   
jeffk464


 

Posts: 1242
Joined: 10/31/2004
From: cerritos, CA, USA
Status: offline 		Sonic 500's and scat cats make much better sport planes in my opinion. They are a little slower but can be taxied and fly aerobatics much better. I have had a lot of planes and have to say my cheepo sonic was one of the most exciting of the bunch.

(in reply to idigrc2)
       Post #: 7

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