Well, I am also in that situation. I am deciding to go with either the 40 or the 60.The only problem is that the 60 is about 130 bucks more. Here is what i would get

for the 4 star 40:

Sig Four Star 40 ARF Red 59.75!QUOT!
SuperTigre GS-45 ABC w/Muffler
Top Flite 10x7 Power Point Propeller
SuperTigre Sport Glow Plug Medium Heat Range
Great Planes Silicone Fuel Tubing Standard 3'
Futaba 6EXAS 6-Channel FM/4 S3004
Great Planes Easy Fueler Valve Glow
foam
MonoKote Neon Green 6'

Total is about 440

For the 4 star 60

Sig Four-Star 60 ARF Red .60-.75,71!QUOT!
necessary washers and screws
SuperTigre G-90 Ringed w/Muffler
Hobbico Y-Harness Futaba J
Hobbico Extension 12!QUOT! Futaba J (2)
MonoKote Neon Green 6'
Futaba 6EXAS 6-Channel FM/4
Great Planes Easy Fueler Valve Glow
foam

Totals to about 570


So the difference in price is about 130. However as people have been saying, the 60 size engine will go with u to your next plane.I am not sure about the G-90 in the 60 but for $120 its not a bad price. My question is, is the extra money worth it for the difference between the planes?

is this your first plane and why do you like the Sig Four Star ? is it because the majority of the people on RCU does ? I'm really curious to hear your answer.

If you can fly a plane with a .90 on the nose go for what you are comfortable doing. I flew my trainer with a .70fsII OS, and then put the .70 in a chipmunk and immediately realized the difference over powering a plane can make. GL

Hi Stunner,

I have owned both and both fly very very well. My personal preference is the 60 size. It handles wind better and is much easier to see. Allot of the stuff in either plane can move up to your next one if you stay within the same size

Now a few changes to your list would be

Drop the Easy Fueler for both planes, it's not needed unless you plan to make a cowl
I would change the 10X7 prop to an 11X6 or 11X5. I'd do the 11X5 at first until you get used to it then move up to the 11X6. The 10X7 will make it much harder to slow the plane down and these planes float allot. I'm not sure of the prop requirements for the G-90 but keep the pitch at 6 or below. I'm guessing a 13X6 prop with be what you want for the G-90. I would suggest an APC prop since they are much more quiet and way more efficent.

You can see a video of my 60 using an OS91 Surpass four stroke turning a 15X6 prop and will give you an idea of it's flight characteristics. It was 5mph crosswinds with gusts to 10 -15mph the day this video was shot. It's being flown by a 15 yr old. Heres the link

http://www.hiddenhangarrc.com/video/...xpert_test.wmv

this is my second plane i am flying a nexstar right now, I have been flying it for the last 5 months or so.

There's been alot of mention that a 70FS might not be enough for the 4* 60. I too am planning on building either the 4* 60, or the BTE Venture 60. Am I gonna be ok with my OS .60 2-stroke on either of these planes, or am I gonna have to think about buying more power too? I'm not sure how soon I'll actually be able to afford this project but I did want to be able to use this OS .60 that I allready have, it's a perfectly good engine, and besides having to pick up a couple more new servos, I have everything I need but the kit. So it would really help keep the cost down if I can use it. So please let me know if it's gonna have enough power for the plane, thanks.


Mark

elenasgrumpy,
The trend these days is to severely overpower an airplane. This comes from the 3D flying that has become so popular lately. In 3D flying the plane needs to be overpower because the majority of flying is done with the wing in a stalled attitude. Because of this the motor/prop need to produce all of the lift needed to stay in the air. Also, in a lot of 3D maneuvers the only way out of the maneuver is to go straight up and pull out of it. They need the extra power the oversize engine produces.

With that in mind, for those of us that consider themselves to be average pilots (or sports pilots) don't really need that much power. A 60 size motor in this plane would be just fine for you. I would go ahead and use the motor you have, you'll be very happy with it.

Hope this helps

Ken

kool! Thanks Ken. That's what I was hoping. I do want to get to 3D eventually, but as you allready Know this is to be used as my #2 plane after I have mastered the Trainer so to speak. I won't be needing unlimited vertical just yet! Hey any idea when I should start looking for those graphics? I know you've been busier than a one legged man in butt-kicking contest so if you haven't had the time, not to worry, I was just curios. Thanks again.


Mark