Glow Engines Discuss RC glow engines

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Old 11-11-2012, 02:45 PM
  #23626
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Has any one tried a 11x8 MA or Graupner on a 72? Trying to keep the prop size down for clearance .

Andy
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Old 11-11-2012, 03:32 PM
  #23627
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You could run a 3 blade
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Old 11-11-2012, 03:38 PM
  #23628
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BLW........................Forgot what my member's number is.

Charles.
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Old 11-12-2012, 03:46 AM
  #23629
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I know you can run one but wondering if any one has any results. I like Graupner props better then MA but they do come at a price. Even the MA three blade is a couple bucks mor then a two blade.

Andy
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Old 11-12-2012, 04:29 AM
  #23630
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Now you've got me stumpeda three blader is more expensive?
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Old 11-12-2012, 05:30 AM
  #23631
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Quote:
ORIGINAL: Old Fart

Now you've got me stumpeda three blader is more expensive?

OF Graupner props are so expensive here that a two blade is more than a master airscrew 3 blade.
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Old 11-12-2012, 05:34 AM
  #23632
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Quote:
ORIGINAL: AJsToyz

I know you can run one but wondering if any one has any results. I like Graupner props better then MA but they do come at a price. Even the MA three blade is a couple bucks mor then a two blade.

Andy
A year ago i purchased a 14X7 - 3-blade Graupner prop for $19.99 + taxes (Cdn.) for comparison with an MA. In my opinion the Graupner is heavier, but i love them. My 14X7 is in combination of a Saito 100 on the H9 Corsair 60.
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Old 11-12-2012, 05:51 AM
  #23633
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Quote:
ORIGINAL: jkr_1100


Quote:
ORIGINAL: Old Fart

Now you've got me stumpeda three blader is more expensive?

OF Graupner props are so expensive here that a two blade is more than a master airscrew 3 blade.

Graupners are not cheap and sometimes they're hard to find. For 2-blade props i use APC. I don't use MA so i cannot make any comparisons in regard to pricing 3/2 blade props. APC and Graupner works for me.
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Old 11-12-2012, 06:09 AM
  #23634
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Yeh 3 blade MA are more then double there 2 blade counter part. I don't mind buying props I will use but, hate to have tons of extra's that won't be used.
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Old 11-12-2012, 09:56 AM
  #23635
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I've run most makes of props and even with MA I find a wide range of flexibility. IMO, that is what makes a poor prop and the reason wood, APC and Graupner are so much better.

Even though wood can be problematic if there are wide temp and humidity variations, for many of my first flights they are almost mandatory to save the engine and even airframe if something goes wrong. I just have to account for their lighter weight.
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Old 11-12-2012, 11:05 AM
  #23636
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Hi
I need a spray bar to saito 100TI.
there is no information which the spray bar you should have
It says buy a new carburetor?
Lars
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Old 11-12-2012, 03:41 PM
  #23637
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@BLW.......................Would anyone care to share the late Mr. William Robison's notes ? Thank you.

Charles.
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Old 11-12-2012, 03:53 PM
  #23638
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http://www.rcuniverse.com/forum/m_5843055/tm.htm
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Old 11-12-2012, 04:03 PM
  #23639
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What happened is that my name is on the posts for Bill's work. I only uploaded the file. I wish we had the tools to edit that. W8YE did most of the work to correct my formatting mistakes to where it reads as well as it does now.
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Old 11-13-2012, 04:46 AM
  #23640
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@W8YE....................Thank you for Bill's notes.
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Old 11-13-2012, 05:54 AM
  #23641
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Would have been interesting to see figures for bigger props or more pitch. Got time and props?

CR
Quote:
ORIGINAL: Hobbsy

OK, I should have predicted these results, that way folks would think I am a deviner of sorts.

Fuel for both engines===WildCat 15% Premium Extra
Prop for both============= APC 13x6


Saito .65/stock muffler, rpm====9,800, rpm/TurboHeader==10,000
Saito .62/stock muffler, rpm====9,780, rpm/TurboHeader===9,990

My assumption is that Horizon got their 9,900 rpm for the .62 using 30% fuel, that seems to be their standard.

The .65 wore an Enya A-3 plug
The .62 wore a Fox Miracle
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Old 11-13-2012, 06:28 AM
  #23642
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My assumption is that Horizon gets their rpm figures for Saito engines in general using 30% fuel...
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Old 11-13-2012, 06:28 AM
  #23643
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Hey Charley, I'll do'er, its about 40 degrees and pouring rain here today. Here is something that surprised me the other day, although it shouldn't have. I ran a Bolly 13.5x6 and a Bolly 12.5x8 and got exactly the same rpm for each. About 9,450 on the .65, didn't try the Bolly's on the .62. I chose to not mention them because not many have Bollys. Its sad that Bolly went under. I have about 10 Bollys that I got from Fiery and Dar Zeelon and have not had to balance any of them. That's a rare thing.
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Old 11-13-2012, 06:37 AM
  #23644
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Quote:
ORIGINAL: mike early

My assumption is that Horizon gets their rpm figures for Saito engines in general using 30% fuel...
Correct

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Old 11-13-2012, 08:40 AM
  #23645
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Quote:
ORIGINAL: Garthwood

BLW........................Forgot what my member's number is.

Charles.
Charles- I went back thru my handwritten list and can't find you. I started at #488 after Bill passed away. This may have been around 2006.
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Old 11-13-2012, 09:27 AM
  #23646
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Quote:
ORIGINAL: blw


Quote:
ORIGINAL: Garthwood

BLW........................Forgot what my member's number is.

Charles.
Charles- I went back thru my handwritten list and can't find you. I started at #488 after Bill passed away. This may have been around 2006.

@BLW...............i read through a few pages but i can't see any proof that i was given a member's number. How about getting a new number ?

Thanks
Charles.
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Old 11-13-2012, 06:44 PM
  #23647
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Charles,

That wild goose chase I just went on was a little funny after a few minutes. I went back to an old post of yours in Oct 2007, and you signed the post as #406. Guess that's your number. Seriously, I need to go back and copy the membership lists that Bill Robison would post every few months for questions like yours.
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Old 11-14-2012, 08:01 AM
  #23648
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This is interesting for several reasons:
http://www.ebay.com/itm/Saito-50-Fou...item1e74451834
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Old 11-14-2012, 08:34 AM
  #23649
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Wow - how cool is that!
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Old 11-14-2012, 11:20 AM
  #23650
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and, longest velocity stack in recorded history, just because.
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