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-   -   viper 500 engine (https://www.rcuniverse.com/forum/arf-rtf-75/1471851-viper-500-engine.html)

Funtanas56 01-27-2004 10:21 AM

viper 500 engine
 
what is the best engine to put on the Great Planes viper 500 and what is the best servoes to use and any modificatons you could suggest.[8D]




Happy Landings

Q-Ball 01-27-2004 10:56 AM

RE: viper 500 engine
 
As far as the engine.I've started with a TT 46 Pro.Fast but not too fast with a 9X9.
It flies straight and true and will glide a long way.It want's to stay in the air.Not bad at all.
As far as weak spots the weakest part of the plane is rite in front of the tail feathers at the smallest part of the fuse.This is a very weak location and it don't take much bang for it to crack or break. There's really no way you can reenforce this area until something happens. It will break rite in front of the small former that you can see before you bolt on the tail feathers.My broke clean so I was able to make a neat hole in the top of the fuse where the rods come out and put some glass in there.After the glass cured I put some Gorilla glue on it also and it's doing the job so far.
This is a fun airplane and have put quiet a few flites on it.Handles well and tracks well.
Start with a slower engine and get used to the handling,then go for more speed.That's what I was going to do but have really like the way it flies with the 46 and haven't changed it.

Good luck
Walt

djlyon 01-27-2004 05:50 PM

RE: viper 500 engine
 
Go to the Pylon forum/Q500. There is an info thread on the Viper 500 right at the top of the forum.

Dewey2 01-27-2004 05:55 PM

RE: viper 500 engine
 
if you want real fast get the mvvs q 500 outlaw verson . i'm running 144 to 146 mph on it . thats as fast as i will push the airframe . i have jr ds 811 digatals in mine and a dura light 1900 pack . fly for 3 days none stop :D yes they fly goood[8D]

Mike Ledbetter 01-27-2004 06:07 PM

RE: viper 500 engine
 
I have one of these almost finished. It's really really red. I wanted to keep it Q-500 legal so I'm using an OS 40 FSR and the matching tuned pipe from Mac's. I put two servos in the wing, hoping I can deploy a bit of flaps for drag and land with the V-Tail a little more slowly.

Also, I'm putting black and white checkerboard on the bottom of the wing for visibility and orientation.

Regards.

Funtanas56 01-27-2004 08:19 PM

RE: viper 500 engine
 
most say a thunder tiger .46 how fast sre the speeds on a viper 500 with that engine.[8D]


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