[NSRCA-discussion] Fw: [NVRC-List] Venus 2 with OS 120Ax

Sun Apr 23 06:10:50 AKDT 2006

I was thinking the exact same thing.  The oversized OS 1.20AX with stock
muffler has got to make the nose somewhat heavier.  And the muffler hanging
off the side of the engine will make that side of the plane heavier than the
other side.  

Bill

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From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Ron Lockhart
Sent: Sunday, April 23, 2006 7:53 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Fw: [NVRC-List] Venus 2 with OS 120Ax

Hi Randy,

I understand the Venus has options for servos in tail or in wing bay.  Which
location did you use?   

How did you get correct balance with the OS 1.20 and stock muffler?

Thanks,

Ron Lockhart

----- Original Message ----- 

From: Randy <mailto:randy10926 at comtekmail.com>  hatfield 

To: NVRC-List at yahoogroups.com ; discussion at nsrca.org ; dszczur at verizon.net 

Sent: Saturday, April 22, 2006 7:12 PM

Subject: [NVRC-List] Venus 2 with OS 120Ax

Well I got 4 flights on the Venus 2 in-between the squalls this afternoon.
That makes for 3 days of flying and the basic trimming and engine break in
is complete.

This model is at 8 1/4 pounds with fut 9202 servos and 1500 NiCad pack.  It
should be not too hard to get it down to 8 pounds.  This engine is more than
enough at this weight.  It is swinging a 15X11 APC with great gusto.  I had
30 MPH winds for one flight today and had no problem.  One of the local IMAC
guys called it overpowered; but I aint sure what that means.  I am getting
lots of practice moving the left stick forward and back.

If you have someone looking to try pattern; go ahead and suggest this model.
With a OS91FX or Saito 100/125 this would be a nice starter plane.  It is a
very simple plane.  Really no harder to build than a typical 40/60 sized ARF
with two wing servos.  The provided 16oz fuel tanks is probably too large.
I can fly intermediate twice and have about 4 oz left.  I am thinking of
going for a 10 or 12 oz tank.  With a YS110 or OS120AX it will fly anything
in the pattern book.

As for the OS120AX, I really like this engine.  It will handle a APC 16X10
and the engine is easy to adjust.  The book does call for a five flight
break-in period, which seemed about right.  I started leaning on the sixth
flight and it started singing.  I am thinking of designing a Model around
this engine.  It should handle anything up to around 9 pounds on the stock
muffler.  Maybe the Insight if I can keep it light enough, or the CA
epilison 120.

Randy

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