Which 40-50 2-stroke has the most linear transition?  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> Profile and Fun Flying Planes >> Which 40-50 2-stroke has the most linear transition?
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Which 40-50 2-stroke has the most linear transition? - 4/4/2002 8:35:45 PM   
John Wells



Posts: 819
Joined: 12/11/2001
From: Overland Park, KS, USA
Status: offline
Which 40-50 2 stroke has the most linear transition? Hovering is much easier with a linear throttle. Please give me your opinions.

Thanks,

John Wells
       Post #: 1

50SX - 4/4/2002 8:37:09 PM   
RS2K



Posts: 1233
Joined: 4/1/2002
From: Wichita, KS, USA
Status: offline
Whooohoooo! I love my OS 50SX on my Sig Somthin' Extra!! Very linear, very reliable, very strong, very easy to fine tune!

(in reply to John Wells)
       Post #: 2

Which 40-50 2-stroke has the most linear transition? - 4/4/2002 8:47:11 PM   
PaulSwany



Posts: 4796
Joined: 12/7/2001
From: Bartlett, TN, USA
Status: offline
Of the engines I have... TT 46, OS 46 SF, MVVS .40, Irvine .53, MDS .40, ST 61, ST 90...

The MVVS .40 and the Irvine .53 are by far the best at throttle transition and instant response.

I've got a Webra .50 that I haven't run yet... So the jury is still out on that one.

(in reply to John Wells)
       Post #: 3

Which 40-50 2-stroke has the most linear transition? - 4/4/2002 8:52:25 PM   
wgeffon



Posts: 6376
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline
[QUOTE]Originally posted by PaulSwany

I've got a Webra .50 that I haven't run yet... So the jury is still out on that one.
[/QUOTE]


I love my Webra .50 for exactly what your asking about..


_____________________________

Wayne

(in reply to John Wells)
       Post #: 4

Which 40-50 2-stroke has the most linear transition? - 4/4/2002 9:10:16 PM   
PaulSwany



Posts: 4796
Joined: 12/7/2001
From: Bartlett, TN, USA
Status: offline
My Webra 50 is going in a Aeron that I will be building as soon as I finish my Menace...

Wayne - Are you running yours on a pipe?


Haven't been able to get much building time in... I've been spending time being a father and a husband lately....

(in reply to John Wells)
       Post #: 5

Which 40-50 2-stroke has the most linear transition? - 4/4/2002 9:39:53 PM   
djlyon



Posts: 1982
Joined: 12/10/2001
From: Castaic, CA, USA
Status: offline
YS 45 of all the engines I've run.

_____________________________

I never met an engine I didn't like.
Of the things I've lost I miss my mind the most.

(in reply to John Wells)
       Post #: 6

Which 40-50 2-stroke has the most linear transition? - 4/4/2002 9:42:17 PM   
wgeffon



Posts: 6376
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline
[QUOTE]Originally posted by PaulSwany
Wayne - Are you running yours on a pipe?


[/QUOTE]



Nope. Stock muffler. This engine used to be in my Top Cap. Now its in my Sig SE.


_____________________________

Wayne

(in reply to John Wells)
       Post #: 7

Which 40-50 2-stroke has the most linear transition? - 4/4/2002 9:52:49 PM   
PaulSwany



Posts: 4796
Joined: 12/7/2001
From: Bartlett, TN, USA
Status: offline
My stock Webra .50 muffler weights 3 3/4 oz !!! It's a tank!! I'm thinking seriously about the mousse can pipe for this one.

(in reply to John Wells)
       Post #: 8

throttle Transition??? - 4/5/2002 1:33:16 AM   
kevin4hsrcm


 

Posts: 1487
Joined: 1/3/2002
From: Easley, SC, USA
Status: offline
First of all, my vote is on the Webra 50. I LOVE THEM!!!

Paul, regarding the Webra stock muffler on your Aeron? The Webra 50 has so much extra power in comparison to the weight of the Aeron, you won't have to worry about it.

Also, I just remembered that I owe you to the dimension on my Extra Long Mac header that I am running on my Aeron - SORRY!!!

_____________________________

Kevin
http://www.hsrcm.com

(in reply to John Wells)
       Post #: 9

Which 40-50 2-stroke has the most linear transition? - 4/5/2002 2:37:48 AM   
PaulSwany



Posts: 4796
Joined: 12/7/2001
From: Bartlett, TN, USA
Status: offline
I hear you on the power... I just don't want all that weight up front.

(in reply to John Wells)
       Post #: 10

Weight Distribution vs Power - 4/5/2002 2:57:18 AM   
kevin4hsrcm


 

Posts: 1487
Joined: 1/3/2002
From: Easley, SC, USA
Status: offline
Paul - I know what you are saying regarding the extra weight up front, but reaqlize that on the Aeron the spar has been moved but in the design of the ribs. I recommend that you do not start with the CG any further than 1/8" behind the spar. I had a problem on my first production Aeron that I built to get the CG forward. I had to run a large batt. pack in the very front of the inside portion of the wing to get the CG close to the spar. I wouldn't worry about the weight of the muffler and where the CG ends up with the stock muffler installed until you get it built and check it.

_____________________________

Kevin
http://www.hsrcm.com

(in reply to John Wells)
       Post #: 11

Which 40-50 2-stroke has the most linear transition? - 4/5/2002 3:08:48 AM   
PaulSwany



Posts: 4796
Joined: 12/7/2001
From: Bartlett, TN, USA
Status: offline
Thanks for the tips..... I'd like to start building it in a week or soo.... Nice instructions... very clear. I also like the way you build the fuse.. by sheeting it in stages to make the pull-pull easier to install. It was really a bear with my SuDoKhoi....

(in reply to John Wells)
       Post #: 12

Which 40-50 2-stroke has the most linear transition? - 4/5/2002 9:12:03 AM   
djlyon



Posts: 1982
Joined: 12/10/2001
From: Castaic, CA, USA
Status: offline
On my Webra 50 an MVVS tuned muffler with a slim line header works great and it's light.

_____________________________

I never met an engine I didn't like.
Of the things I've lost I miss my mind the most.

(in reply to John Wells)
       Post #: 13

Which 40-50 2-stroke has the most linear transition? - 4/16/2002 6:23:06 PM   
Mark DiMonte


 

Posts: 150
Joined: 4/11/2002
From: Richmond Hill Ontario, ON, CANADA
Status: offline
Ys 45 has the best fuel delivery system in 2 stroke engines. When a YS is set up (regulator and needle valve) they run smooth and consistant from full tank to dry.

(in reply to John Wells)
       Post #: 14

Which 40-50 2-stroke has the most linear transition? - 4/16/2002 7:40:49 PM   
Mike Bogh



Posts: 2466
Joined: 12/7/2001
From: MT Vernon, WA, USA
Status: offline
Hideho all,

The correct answer to your question is the YS 45.
Sure there are many other terrific engines, but with the accuracy of the fuel delivery of YS, none can compare.

I liken it to comparing the fuel injected vehicals of today compared to the normally aspirated vehicals of 20 years ago.

Notice your question did not use weight as a qualifiyer.

And FWIW, I have compared the YS to Webra, OS, Rossi, MVVS, and the YS is spot on, one click of the throttle stick = 100 rpm...or so it seems.

Good question, good thread.


_____________________________

Best to you all,
Mike
In memorium
Art Grabow Sr. AKA Grnbrt..RIP mah Brother

(in reply to John Wells)
       Post #: 15

So what about weight? - 4/16/2002 7:50:49 PM   
PaulSwany



Posts: 4796
Joined: 12/7/2001
From: Bartlett, TN, USA
Status: offline
Thanks for your reply Mike, very informative. But.... How does the weight compair? I'm guessing the extra fuel delivery system adds some baggage. Is it worth it?

(in reply to John Wells)
       Post #: 16

Which 40-50 2-stroke has the most linear transition? - 4/16/2002 8:10:43 PM   
Mark DiMonte


 

Posts: 150
Joined: 4/11/2002
From: Richmond Hill Ontario, ON, CANADA
Status: offline
Sure it is worth it. The ys has enough power and throttle accelleration to fit your needs. I have Jett Engineering turbo in cowl muffler on mine and it will swing a 12X6 APC at 12,500 rpm

(in reply to John Wells)
       Post #: 17

Which 40-50 2-stroke has the most linear transition? - 4/16/2002 9:09:46 PM   
f2racer



Posts: 1167
Joined: 12/7/2001
From: Bedford, MA, USA
Status: offline
If you can keep the plane light enough, I'd suggest the TT GP 42. I'v