X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from frontend3.cwpanama.net ([201.225.225.169] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 944944 for flyrotary@lancaironline.net; Sun, 15 May 2005 15:39:01 -0400 Received-SPF: none receiver=logan.com; client-ip=201.225.225.169; envelope-from=rijakits@cwpanama.net Received: from [201.224.93.110] (HELO usuarioq3efog0) by frontend3.cwpanama.net (CommuniGate Pro SMTP 4.2.1) with SMTP id 40374730 for flyrotary@lancaironline.net; Sun, 15 May 2005 14:39:59 -0500 Message-ID: <00cb01c55985$502658e0$6e5de0c9@usuarioq3efog0> From: "rijakits" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Prop balancing? Date: Sun, 15 May 2005 14:35:54 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00C7_01C5595B.66BA0450" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 This is a multi-part message in MIME format. ------=_NextPart_000_00C7_01C5595B.66BA0450 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Depends what it can do! You might want to download some of the manuals from the ACES website, there they specify the capabilities. I believe the 1717 model is the simplest they make - as far as I know it is no good for helicopters, but does engines and props. Thomas J. ----- Original Message ----- From: Finn Lassen To: Rotary motors in aircraft Sent: Sunday, May 15, 2005 12:18 PM Subject: [FlyRotary] Re: Prop balancing? Do you think there would be a market for a $200 - $300 unit for homebuilts? Finn rijakits wrote: I don't know about the old analog units, but the ones you can buy an airplane for it! Web are using ACES products which a re considered half the price of a Chadwick. We use a 2020Turbo for the helicopters and it costs around $12.000.- with all the software for the helicopters. They have cheaper version for simpler problems, like props. Check their website: http://www.acessystems.com/ If for nothing else they have a interesting reading about balancing - go to "downloads".... I know there are cheaper systems for the experimetal market out there, but I gues they are a little limited in certain aspects (I may wrong!!). ACES is very easy to work with once you got through the manual (which is very easy too!) Ask them to send you a test unit, if you like it they may sell it to you for a reduced price. I am on good terms with them, if you want I can inquire about new, used, rental units...... This units can also be used for any and all kinds of balance - however if you are serious about your gyro, you want to be able to do that as well.... With some fixtures you should even be able to balance rotors and cranks dynamically! Hell, you might make some extra bucks balancing all the props in your area! Once you areb set up you should be done with 3-4 engine runs. Thomas J. ----- Original Message ----- From: Russell Duffy To: Rotary motors in aircraft Sent: Sunday, May 15, 2005 9:13 AM Subject: [FlyRotary] Re: Prop balancing? I'm not familiar with the Chadwick unit, but it probably operates on the same principle using a vibration sensor on the engine and an optical sensor to pick up reflective tape on one prop blade. No reason it shouldn't work. Thanks for the info Perry. The Chadwick was just as you describe, a vibration/optical sensor that mounted to the redrive plate, and a piece of tape on the prop. The guy who was running it admitted that it was probably something he just didn't know how to set. The unit actually belongs to his son, but he's working two jobs, and I never see him anymore. At least it's good to know that it should probably work. BTW, does anyone have any idea how much these things cost? I assume "a lot". Cheers, Rusty ------=_NextPart_000_00C7_01C5595B.66BA0450 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Depends what it can do!
You might want to download some of the manuals = from the=20 ACES website, there they specify the capabilities.
I believe the 1717 model is the simplest they = make - as=20 far as I know it is no good for helicopters, but does engines and=20 props.
Thomas J.
----- Original Message -----
From:=20 Finn=20 Lassen
Sent: Sunday, May 15, 2005 = 12:18 PM
Subject: [FlyRotary] Re: Prop=20 balancing?

Do you think there would be a market for a $200 - $300 = unit for=20 homebuilts?

Finn

rijakits wrote:
I don't know about the old = analog units, but=20 the ones you can buy an airplane for it!
Web are using ACES products which a re = considered half=20 the price of a Chadwick. We use a 2020Turbo for the helicopters and = it costs=20 around $12.000.- with all the software for the helicopters. =
They have cheaper version for simpler = problems, like=20 props.
Check their website: http://www.acessystems.com/
If for nothing else they have a interesting = reading=20 about balancing - go to "downloads"....
I know there are cheaper systems for the = experimetal=20 market out there, but I gues they are a little limited in certain = aspects (I=20 may wrong!!).
ACES is very easy to work with once you got = through=20 the manual (which is very easy too!)
Ask them to send you a test unit, if you = like it they=20 may sell it to you for a reduced price.
I am on good terms with them, if you want I = can=20 inquire about new, used, rental units......
This units can also be used for any and all = kinds of=20 balance - however if you are serious about your gyro, you want to be = able to=20 do that as well....
With some fixtures you should even be able = to balance=20 rotors and cranks dynamically!
Hell, you might make some extra bucks = balancing all=20 the props in your area! Once you areb set up you should be done with = 3-4=20 engine runs.
 
 
Thomas J.
-----=20 Original Message ----- From:=20 Russell=20 Duffy To:=20 Rotary motors in = aircraft=20 Sent:=20 Sunday, May 15, 2005 9:13 AM Subject:=20 [FlyRotary] Re: Prop balancing?

I'm not familiar with the Chadwick unit, = but it=20 probably operates on the same principle using a vibration sensor = on the=20 engine and an optical sensor to pick up reflective tape on one = prop blade.=20 No reason it shouldn't work.

 
Thanks for the info Perry. =20 The Chadwick was just as you describe, =20 a vibration/optical sensor that mounted to the redrive = plate,=20 and a piece of tape on the prop.  The guy who was running it = admitted=20 that it was probably something he just didn't know how to = set.  The=20 unit actually belongs to his son, but he's working two jobs, and I = never=20 see him anymore.  
 
At least it's good to know that it = should=20 probably work.  
 
BTW, does anyone have any idea how much = these=20 things cost?  I assume "a lot". =20
 
Cheers,
Rusty
 
 
  
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