Glow Engines Discuss RC glow engines

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Old 11-14-2012, 11:29 AM
  #23651
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That looks very cool! Doesn't look like you can get much prop on it though. I wonder what the added weight is?
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Old 11-14-2012, 01:09 PM
  #23652
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ORIGINAL: blw

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.
@BLW......................Thanks mate. # 406 it is then. This thread is so huge and interesting that i keep losing track of the pages i've read.

Charles.

Saito club Member # 406
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Old 11-15-2012, 10:20 AM
  #23653
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ORIGINAL: Garthwood


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ORIGINAL: jkr_1100


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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.




that is a shame. I think they are made in Windsor, ON, CA
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Old 11-15-2012, 01:25 PM
  #23654
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JKR..................Graupner props are made in Germany, not in Ontario. I suppose that is why they're a bit more expensive. I use a Graupner 3-blade on the H9 Corsair.
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Old 11-15-2012, 07:51 PM
  #23655
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I have quite a few Graupner 3-blade props with the latest to be fit to the 125a on Rare Bear once the test flights are out of the way. Thinking of painting it chrome. If I could find some appropriate size Hartzell or other stickers that would really help the scale look.
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Old 11-15-2012, 09:21 PM
  #23656
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Ref. 3 bladed props .... Xoar and Zinger make a sell them but, they are bit pricey. Xoar's smallest size is a 14x6 three blade ($42 approx) and Zinger starts in the 10 inch size. Their 14x6 is the same price as the Xoar I think.

RJ
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Old 11-15-2012, 10:16 PM
  #23657
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Anyone care to look at the current Saito catalog from the factory?

http://www.saito-mfg.com/e-book/_SWF_Window.html
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Old 11-16-2012, 05:06 AM
  #23658
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ORIGINAL: Cougar429

I have quite a few Graupner 3-blade props with the latest to be fit to the 125a on Rare Bear once the test flights are out of the way. Thinking of painting it chrome. If I could find some appropriate size Hartzell or other stickers that would really help the scale look.
Them Graupners are some hard-turning props. Sound great though. My 125 like the MA 14x9 prop best of all the 3-bladers that I've tried. (too many to admit)
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Old 11-16-2012, 05:12 AM
  #23659
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ORIGINAL: w8ye

Anyone care to look at the current Saito catalog from the factory?

http://www.saito-mfg.com/e-book/_SWF_Window.html

They've re-released the Saito 30? And radial Gasoline engines. Good time to be in Club Saito.
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Old 11-16-2012, 05:33 AM
  #23660
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It was Horizon that discontinued the 40 and 30 because they thought electrics had taken over the world. Saitro never quit making them.
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Old 11-16-2012, 06:01 AM
  #23661
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ORIGINAL: Cougar429

I have quite a few Graupner 3-blade props with the latest to be fit to the 125a on Rare Bear once the test flights are out of the way. Thinking of painting it chrome. If I could find some appropriate size Hartzell or other stickers that would really help the scale look.

You mean painting the rare bear chrome and not the prop. Right ?
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Old 11-16-2012, 06:22 AM
  #23662
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He means painting the propeller. People do that.
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Old 11-16-2012, 06:38 AM
  #23663
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ORIGINAL: mike early

He means painting the propeller. People do that.

When a propeller is painted, extra coats of paint can be used as a way to balance the prop.

You have to allow for the added weight of the vehicle (liquid) weight as the paint will weigh less once it dries. Ater the prop ahs a base coat, misting on "dry" coats a little @ a time is the best method to achieve balance.
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Old 11-16-2012, 01:30 PM
  #23664
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ORIGINAL: mike early

He means painting the propeller. People do that.

I made that question because if the prop was to be painted, rebalancing the prop again is too time consuming. Graupner has specific instructions regarding their props.
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Old 11-16-2012, 05:42 PM
  #23665
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Thanks for that,anyone know how to save it? usually right click and save but the japanese window pops up and i'm stumped.Like the way you turn the pages tho.
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Old 11-16-2012, 05:44 PM
  #23666
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Quote:
ORIGINAL: SrTelemaster150


Quote:
ORIGINAL: mike early

He means painting the propeller. People do that.

When a propeller is painted, extra coats of paint can be used as a way to balance the prop.

You have to allow for the added weight of the vehicle (liquid) weight as the paint will weigh less once it dries. Ater the prop ahs a base coat, misting on ''dry'' coats a little @ a time is the best method to achieve balance.
+1
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Old 11-16-2012, 05:45 PM
  #23667
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I dunno. But it looks like Saito has stuff for your phones, too?
http://www.saito-mfg.com/e-book/
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Old 11-16-2012, 06:30 PM
  #23668
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I have found that two part epoxy paint like K&B or Hobby Poxy works the best for balancing props. It is much better than sanding and removing material from the blades. Regular paint has a vehicle or thinner that dries and makes the dried paint lighter than when it was applied.
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Old 11-16-2012, 07:16 PM
  #23669
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ORIGINAL: Old Fart

Thanks for that,anyone know how to save it? usually right click and save but the japanese window pops up and i'm stumped.Like the way you turn the pages tho.

Put the link in your "favorites".
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Old 11-16-2012, 09:46 PM
  #23670
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On props.  Have any of you seen the wrinkles that develop at the blade root on APC props when you push "real power" through them.  They look a bit like ladies "stretch marks", apologies for that where required, old fart knows what I mean there.
Any way if you do see them (the marks, retire the prop or use at your peril.  It means one blade has now grown longer than the other, doubt me measure the 2 blades for yourself.  If the blade lets go in flight at any sort of good RPM the worst that happens is a "lunched engine" followed by a re kitted model, on the ground is another matter and look out any one in the way of the loose blade.
In case you were wondering I use APC and Bolley's (sparingly) and yes MA's can't get a reliable source of the right sized Graupner or Superior where I am so I collect them in my travels.
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Old 11-17-2012, 03:43 AM
  #23671
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Yes i've seen the stretch marks you talk about on a couple of my apc's but balance seemed ok and hav'nt had a failure.A mate chucked half a blade in flight vibration looked unreal from where i was standing,real exciting and a bit hard on the firewall
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Old 11-17-2012, 06:39 AM
  #23672
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The reports on APC blade root failures when bolted to 4-strokes kept me from ever fitting one for that app.

As for failures: ANY prop that has had a ground strike, especially while under power, should be inspected carefully. As with real aircraft these are the types of stresses or damage that can come out later to bite you.

Old Fart, your friends blade failure and my own experience when first learning to tune Saitos have me cringe EVERY time I watch a Youtube vid with the camera well within the danger arc of a prop.
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Old 11-17-2012, 09:01 AM
  #23673
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Quote:
ORIGINAL: FNQFLYER

On props. Have any of you seen the wrinkles that develop at the blade root on APC props when you push ''real power'' through them. They look a bit like ladies ''stretch marks'', apologies for that where required, old fart knows what I mean there.
Any way if you do see them (the marks, retire the prop or use at your peril. It means one blade has now grown longer than the other, doubt me measure the 2 blades for yourself. If the blade lets go in flight at any sort of good RPM the worst that happens is a ''lunched engine'' followed by a re kitted model, on the ground is another matter and look out any one in the way of the loose blade.
In case you were wondering I use APC and Bolley's (sparingly) and yes MA's can't get a reliable source of the right sized Graupner or Superior where I am so I collect them in my travels.
FNQFLYER......................I am 100 percent with you and i take your warnings seriously. How about a close-up picture of these marks at the blade root on APC props if it's possible ? A picture is worth a thousand words. Personally i do believe your observations, but at times we do ignore these signs.

Charles.
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Old 11-17-2012, 01:28 PM
  #23674
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ORIGINAL: w8ye

It was Horizon that discontinued the 40 and 30 because they thought electrics had taken over the world. Saitro never quit making them.
I still see the FA40a on the Horizon site..

http://www.horizonhobby.com/products...m-rtf-SAIE040A

No idea why /super-cub-dsm is in the address...
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Old 11-19-2012, 09:50 AM
  #23675
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just thought I would post a pic of the Saito 180 on the 1/4 scale cub. this is a balsa USA 1/4 scale cub.
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