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General control line discussion => Open Forum => Topic started by: Allen Brickhaus on June 18, 2013, 06:22:48 PM

Title: Early ST 51's to decide what year of manufacture.
Post by: Allen Brickhaus on June 18, 2013, 06:22:48 PM

When were these produced?  The one with the slick side had the V and other lettering but it has been removed.

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: RandySmith on June 18, 2013, 07:21:59 PM

They go back to the late  1960s

Randy

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: Allen Brickhaus on June 18, 2013, 08:04:28 PM

Thank you,

Allen

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: RandySmith on June 18, 2013, 08:18:04 PM

They made  both ball bearing models and plain bushing models of the 51, Also the later ones had muffler lugs and thicker cylinder sleeves

Randy

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: Brian Hampton on June 18, 2013, 09:00:36 PM

I have a test report from 1974 on what seems to be your engine at http://sceptreflight.net/Model%20Engine%20Tests/ST%2051%20%281974%29.html where it says the plain bearing version was from 1960.

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: M Spencer on June 19, 2013, 12:13:05 AM

These old plain bearing 51s are from around 1960 .

(http://www.controlline.org.uk/userupload/11/v51a.jpg)

Piston / Liners same part No as Ball Race , which I think came out around 62 with the 56 , then the 60 around 1964 .
Was two ring & single ring , Two Ring being first series . Head chambers altered over the years , or Chantis too . :-\

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: M Spencer on June 19, 2013, 12:25:15 AM

Egad !  %^@

(http://i.ebayimg.com/t/VINTAGE-SUPER-TIGRE-V-51-Chromed-RC-Model-Airplane-Engine-Saturno-ITALY-51-AAA-/00/s/MTYwMFgxNTcw/z/zCwAAOxyIAZRv5FE/$T2eC16Z,!)8E9s4l8!kVBRv5FEGVrQ~~60_35.JPG)

wrong box tho , & a few other things , http://www.ebay.com/itm/VINTAGE-SUPER-TIGRE-V-51-Chromed-RC-Model-Airplane-Engine-Saturno-ITALY-51-AAA-/171060340994#ht_1745wt_1141

Triple AAA is about 64 / 65 .  n~ R%%%% >:(

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: M Spencer on June 20, 2013, 01:43:06 AM

More diatribe , from :http://sceptreflight.net/Model%20Engine%20Tests/ST%2051%20(1974).html

First Line says ' since its appearance in 1960 ! so may well be first made in 1960 . ! H^^

(http://sceptreflight.net/Model%20Engine%20Tests/ST%2051%20(1974)-1.jpg)

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: Allen Brickhaus on June 20, 2013, 07:09:07 AM

You have been a big help to me.  Thank you so much.

Allen

Title: Re: Early ST 51's to decide what year of manufacture.
Post by: Chris McMillin on June 22, 2013, 12:49:32 PM

I like the reference to "contest R/C stunt" events.
Chris...