RE: NEW OS MAX-120AX RING !!!  
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RE: NEW OS MAX-120AX RING !!! - 10/26/2005 6:28:47 PM   
LuvBipes



Posts: 1073
Joined: 12/29/2001
From: Luxembourg City, LUXEMBOURG
Status: offline 		C'mon Ed - you're being way too modest. Methinks you also have a little experience "driving" aircraft considerably larger than RC models!!!

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Keep your eyes in the skies and your future should follow.

(in reply to Ed_Moorman)
       Post #: 76

RE: NEW OS MAX-120AX RING !!! - 10/26/2005 6:38:46 PM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		Luv (and others):

Ed Moorman was an instructor pilot in the Cessna "Tweetybird" twin jet trainers, and was rated in (among many others) the F4 Phantom aircraft.

Bill.


< Message edited by William Robison -- 10/26/2005 6:39:24 PM >

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Real Airplanes have Two Engines
AMA 25139 - More than 40 years.

(in reply to LuvBipes)
       Post #: 77

RE: NEW OS MAX-120AX RING !!! - 10/27/2005 7:37:15 PM   
Henniekuyper


 

Posts: 17
Joined: 8/6/2005
From: Pretoria North, SOUTH AFRICA
Status: offline 		Hi Ed

I'm doing exactly the same! Two of them for a twin stik. the other in a Big Stik 40.

I did my 1st diploma 1995 second 2002 and my Engineering will be finished this year!
My main aim is Power Engineering, Digital and Mechanical as well.


Best regards
Hennie

(in reply to Ed_Moorman)
       Post #: 78

RE: NEW OS MAX-120AX RING !!! - 11/1/2005 3:35:22 AM   
seanychen



Posts: 2914
Joined: 7/20/2002
From: Canton, MI, USA
Status: offline 		I just looked up some oversea *street price*. It looks like I may be able to pick up a new 120 AX for equivalent of < $180 US during my upcoming vacation. It should work well on my Harrier 90.

This would be my second OS I've owned under the new management. I had OS 40 FP, 25 FP, 25 SF, 28 FSR, 32 FSR, 108 FSR, and 61 FP. They were all good engines. I recently had to break-in a 46 LA for a friend of mine. What a surprising disappointment. It was the first OS I couldn't hand-start. Even w/ a starter it won't start. I had an OS 160 FX that I sold to a friend. I really hope the 120 AX will satisfy me the old FSR's did. Like they say, there is only 1 way to find out.

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(in reply to Dr Nitro)
       Post #: 79

RE: NEW OS MAX-120AX RING !!! - 11/27/2005 4:20:17 PM   
STG



Posts: 3498
Joined: 7/3/2003
From: New Richmond, WI, USA
Status: offline
http://www2.towerhobbies.com/cgi-bin/WTI0001P?&I=LXLGJ0&P=V

Now available at tower. Mounts in .91 space! Recommended prop is very large!!


This is the O.S. Max Two Stroke 1.20AX Ringed Engine with Muffler.

**Additional Technical Info Will Be Added When It Becomes Available.**

FEATURES: Model Application: Ideal for 3D, Precision and Sport flying
Mounting Application: Mounts in same space as the .91FX (actual
mounting dimensions vary slightly, see SPECS)
Cylinder Construction:
Muffler: E-5020 "Power Box" with extension and 90° adapters
Carburetor: 70D with rearward angled needle valve for safety
Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) can also be
used
Warranty: Two-year limited

INCLUDES: O.S. Max Two Stroke 1.20AX Ringed Engine with E-5020 Power Box
Muffler, #8 glow plug, muffler adapter, prop washer and nut
instruction manual and decal sheet

REQUIRES: Fuel: Two stroke with 20% lubricant and 5-20% nitromethane
Propeller: 15x10-12 or 16x8-10
Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing

SPECS: Displacement: 1.218 cu in (19.96cc)
Bore: 1.197" (30.4mm)
Stroke: 1.083" (27.5mm)
Practical RPM: 1,800 - 9,500
Power Output: 3.1ps/9000 RPM
Weight: 20.88oz (647g)
7.074oz (219.2g) with 90° adapter installed
7.907oz (245g) with extension installed

Distance Between Mounting Holes Same Side: 0.98" (25mm)
Distance Between Mounting Holes Opposite Side: 2.3" (58mm)
Distance Center of Crankcase to End of Crankshaft: 4.3" (109.5mm)
Distance Center of Crankcase to Drive Hub: 2.7" (69.8mm)
Width Between Mounting Tabs: 2.6" (67mm)
Width of Crankcase Below Mounting Tabs: 1.8" (46.5)
Length from Backplate to End of Crankshaft: 5.5" (139.9mm)
Length from Backplate to Drive Hub: 3.9" (100.2mm)
Height/Bottom of Crankcase to Top of Cylinder Head: 3.4" (85.7mm)
Height/Bottom of Mounting Tabs/Top of Cylinder Head: 4.3" (109.2mm)


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Good Flying to you!
See Blog for RCU Video's

(in reply to seanychen)
       Post #: 80

RE: NEW OS MAX-120AX RING !!! - 11/27/2005 4:27:30 PM   
Strykaas



Posts: 4106
Joined: 3/21/2003
From: Paris, FRANCE
Status: offline
quote:

Mounts in .91 space!


Yes, but it is an OS !

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(in reply to STG)
       Post #: 81

RE: NEW OS MAX-120AX RING !!! - 11/27/2005 4:33:25 PM   
STG



Posts: 3498
Joined: 7/3/2003
From: New Richmond, WI, USA
Status: offline
quote:

ORIGINAL: Strykaas
quote:

Mounts in .91 space!

Yes, but it is an OS !


A lot of people are still getting very good results with the OS ... Knock on wood.

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Good Flying to you!
See Blog for RCU Video's

(in reply to Strykaas)
       Post #: 82

RE: NEW OS MAX-120AX RING !!! - 11/27/2005 6:19:22 PM   
Flyboy Dave



Posts: 13448
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: offline 		The ringed OS engines were always the best. Hopefully this one will be a winner
as well.

FBD.

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An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
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(in reply to STG)
       Post #: 83

RE: NEW OS MAX-120AX RING !!! - 11/27/2005 6:27:16 PM   
STG



Posts: 3498
Joined: 7/3/2003
From: New Richmond, WI, USA
Status: offline
quote:

ORIGINAL: Flyboy Dave
The ringed OS engines were always the best. Hopefully this one will be a winner
as well.
FBD.


Looks like it uses the same rear bearing as the OS1.6/OS108


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Good Flying to you!
See Blog for RCU Video's

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       Post #: 84

RE: NEW OS MAX-120AX RING !!! - 2/11/2006 10:34:49 PM   
EyeflyRC



Posts: 120
Joined: 4/2/2002
From: Atlanta , GA, USA
Status: offline 		Is there an issue with the bearings on the 1.08 and 1.60?

(in reply to STG)
       Post #: 85

RE: NEW OS MAX-120AX RING !!! - 2/11/2006 10:57:56 PM   
STG



Posts: 3498
Joined: 7/3/2003
From: New Richmond, WI, USA
Status: offline 		No. A lot of pattern fliers change out the rear bearing on the OS1.6FX to SS.

_____________________________

Good Flying to you!
See Blog for RCU Video's

(in reply to EyeflyRC)
       Post #: 86

RE: NEW OS MAX-120AX RING !!! - 2/12/2006 1:43:38 AM   
Kweasel


 

Posts: 1087
Joined: 1/7/2004
From: fort worth, TX, USA
Status: offline 		The 108 and 140rx use the same bearing. 6904. The 160fx uses a 6004 as does the ST 140 and webra 160.

(in reply to STG)
       Post #: 87

RE: NEW OS MAX-120AX RING !!! - 2/12/2006 3:54:50 AM   
STG



Posts: 3498
Joined: 7/3/2003
From: New Richmond, WI, USA
Status: offline
quote:

ORIGINAL: Kweasel

The 108 and 140rx use the same bearing. 6904. The 160fx uses a 6004 as does the ST 140 and webra 160.


Sorry for the mis information but this is what misled me into thinking they were the same.

O.S. Rear Bearing 1.08-1.60

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXCD26&P=Z



_____________________________

Good Flying to you!
See Blog for RCU Video's

(in reply to Kweasel)
       Post #: 88

RE: NEW OS MAX-120AX RING !!! - 2/12/2006 8:48:17 AM   
Kostas1



Posts: 1228
Joined: 12/19/2005
From: AthensAthens, GREECE
Status: offline 		Μan,
ofcourse it is an OS engine!!!
What are your problem with OS engines?
Do you like them?
Then buy them!
You don't like them,don't EVER EVER buy them.
Back to the topic and here is a reply to this!
quote:

Now, look how the tide has turned, the once great OS quality is worse than even the average Chineese engine

Look,
in my club,
most people use OS engines and Magnums (just a copy of OS).
Also i have seen one or two using GMS engines.
Yes,these darn Chinese engines that are sponsored in Towerhobbies as @one of the best manufacturer@...
I must say that no ,but one guy in my club had a problem with an OS heli engine,and that was overheating.
He riched that thing and problem went away.
As for me,i am an OS fan.
I started with an OS 46 LA.
And after that i bought an OS 91 FX with the upgrades on needle valve and backplate and also
an OS 65 LA.
I don't have a problem with these engines.
And cann't say that OS doesn't make NOW and THEN good and reliable engines.
Even if i am an OS fan,i would like to break-in a ST 2300 or a bigger one,or a Magnum 4stroker,or
RCV 4str.,even Saitos as well,
BUT NOT CHINESE ENGINES.
It is not regional.
I just don't to hear anything about them.
So,in the end of my reply to all guys who critisize OS quality i must say that...
If you like these manufacturer,because we makes reliable-performance engines,just buy them.
If you don't like them because of their quality,cost etc. go with another manufacturer.
But not tell BAD oppinions about OS without proofing it.

(in reply to Strykaas)
       Post #: 89

RE: NEW OS MAX-120AX RING !!! - 2/12/2006 9:58:40 AM   
CARTERrc


 

Posts: 102
Joined: 12/5/2005
From: BundabergQueensland, AUSTRALIA
Status: offline 		G'day
Fellas I own the new 120 ax and have found it to be amazing. It is reliable, spins a 15x10 apc at around 9000 rpm. For the best result and sound use the Bisson muffler.

One thing that I do not appreciate is people critisising somthing that they have not used. The 120 ax is the best 120 size engine to hit the market. One of Australias best pilots believes that the "OS haters" will be starting to get jealous of the power reliability and the weight of the new engine.

(in reply to Kostas1)