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Engine basics => Engine set up tips => Topic started by: John Leidle on August 20, 2013, 08:09:18 AM

Title: Double Star .61 Light
Post by: John Leidle on August 20, 2013, 08:09:18 AM
  Can you guys tell me your experiences W/the Double Star engine? I am interested in one after the success I've had W/the .54 .  I know they are out of production but they might be coming back. Maybe you have witnessed otherguys using them.                 John
Title: Re: Double Star .61 Light
Post by: Steve Fitton on August 20, 2013, 02:11:27 PM
Which one? The side exhaust DS 60 lite or the rear exhaust DS 61?
Title: Re: Double Star .61 Light
Post by: John Leidle on August 20, 2013, 08:08:47 PM
  The Rear Exhaust ..
Title: Re: Double Star .61 Light
Post by: Steve Fitton on August 21, 2013, 06:24:30 PM
I have extensive experience with the side exhaust but not the rear exhaust.  Not too many of the 61REs were made and those that I saw in service gave their owners the devil of a time with the run.  Tom's original 61RE in his Avanti used 7 to 8 inches of pitch and seemed to work ok, as did Andy Patterson's Avanti setup.  The rest that I saw were not very good.  The chief issue was that the engine would not burn more than 4 to 4.5 oz fuel and made about the same power as a Fox 35.
Title: Re: Double Star .61 Light
Post by: EddyR on August 21, 2013, 09:00:18 PM
Total Junk
Ed
Title: Re: Double Star .61 Light
Post by: steven yampolsky on August 22, 2013, 06:28:55 AM
Norm Liversidge uses his with great success. I have not seen that motor give him a bad run ONCE! Set it up as per Tom Dixon and you'll never have a problem
Title: Re: Double Star .61 Light
Post by: John Leidle on August 22, 2013, 12:07:49 PM
   Thanks everyone,  I'm looking for a rear exhaust big bore engine. The Double Star looks inviting.
  John
Title: Re: Double Star .61 Light
Post by: Balsa Butcher on August 22, 2013, 03:22:02 PM
Ever considered a Ro-Jett? 51's, 61's, and 67's are RE and work great on pipe or RE muffler. Currently in production and supported. Joe Gilbert won the recent Albuquerque contest with a .67 on a pipe...high DA, gusty winds, lots of power, impressive. PA's too, if you can find someone willing to sell - I know I won't sell the one I have. ;D
Title: Re: Double Star .61 Light
Post by: Balsa Butcher on August 22, 2013, 04:02:35 PM
Another alternative that is currently available is the Stalker 61 RE. 8)
Title: Re: Double Star .61 Light
Post by: John Leidle on August 23, 2013, 06:25:13 AM
  I could be somewhat interested in the ROjett  .67 or big block .But I am never sure of the status & wheather or how they are going to be I read so many different things here & there about them.
     John
Title: Re: Double Star .61 Light
Post by: Balsa Butcher on August 23, 2013, 08:48:47 PM
I can answer a few of your questions: The .67 is currently in production and is the most popular Ro-Jett C/L engine. Order directly from Dub Jett, lead time is usually only a few weeks and he is very easy to work with. Dub also offers excellent support after sale. I don't wish to compare them to PA's which are also excellent engines. I like the .67 over the .76 as it has the same mounting holes as the RO-Jett 60 and 65...and PA's and VF 40/46's. 8)
Title: Re: Double Star .61 Light
Post by: John Leidle on August 24, 2013, 08:12:43 AM
  Thank you for your time ,,, I couldn't find the weight of the RO-jett .67 &  .76.
Title: Re: Double Star .61 Light
Post by: Balsa Butcher on August 24, 2013, 06:47:24 PM
RO-Jett .67: 13.1 ounces without header. Don't know about the .76.  8)
Title: Re: Double Star .61 Light
Post by: John Leidle on August 26, 2013, 11:07:58 AM
  Thank you.
       John
Title: Re: Double Star .61 Light
Post by: Jim Morris on August 26, 2013, 12:51:31 PM
I ran the DS RE in my modified Time machine for a while, yes a 7 1/4 pitch prop,sounded like a tractor LOL, but it later got to where it wasnt running consistantly no matter what I tried, pulled it and put in a Stalker 55RE, ran like a top.
Title: Re: Double Star .61 Light
Post by: John Leidle on August 26, 2013, 10:05:10 PM
  I have a Double Star .54 that started an odd way of running a while back, For no reason it would run richer as the flight progressed. I tried all my tricks & it didn't help.  One fine day it ran properly & it has ever since. I have no idea.
     John