X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from a34-mta01.direcway.com ([66.82.4.90] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 868094 for flyrotary@lancaironline.net; Wed, 13 Apr 2005 18:19:38 -0400 Received-SPF: none receiver=logan.com; client-ip=66.82.4.90; envelope-from=jackbeale@direcpc.com Received: from jack (dpc691916001.direcpc.com [69.19.16.1]) by a34-mta01.direcway.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with SMTP id <0IEW004BSOMSAZ@a34-mta01.direcway.com> for flyrotary@lancaironline.net; Wed, 13 Apr 2005 18:18:45 -0400 (EDT) Date: Wed, 13 Apr 2005 18:15:00 -0400 From: Jack Beale Subject: Re: [FlyRotary] Re: Fw: Gear-UP Landings - problem solved...? To: Rotary motors in aircraft Message-id: <003301c54076$c2f8a1c0$2619050a@jack> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Content-type: multipart/alternative; boundary="Boundary_(ID_/H61yYOdnqv1xry8GJZ4Vw)" X-Priority: 3 X-MSMail-priority: Normal References: This is a multi-part message in MIME format. --Boundary_(ID_/H61yYOdnqv1xry8GJZ4Vw) Content-type: text/plain; charset=Windows-1252 Content-transfer-encoding: 7BIT K, We don't know what will actually happen to a Nylon or Phenolic ball when it hits the asphalt at 60 mph. Perhaps it would self-destruct - perhaps it would only roll. Point is, it only has to work once to prevent damage to the airplane. If it does get damaged, it's simple and cheap to replace the ball... I kinda like the idea of a rollerblade with several rollers contacting the runway at the same time.... Jack Beale jack.beale@att.net -------------------------------------------------------------------------------- ----- Original Message ----- From: Marvin Kaye To: Rotary motors in aircraft Sent: Wednesday, April 13, 2005 3:00 PM Subject: [FlyRotary] Re: Fw: Gear-UP Landings - problem solved...? Hi Jack, I've used these rollers in the glass industry for longer than I care to admit to. The reason they work nicely in an industrial application is because they don't have to spin real fast (generally) and the surface of the ball stays relatively nice and shiny allowing the bearings that it seats in to do their job. I'm afraid that with a nylon ball after its initial contact with any runway surface its exterior will be damaged so quickly that it won't be able to "float" on its bearings, and it will soon turn into another "hockey puck". --Boundary_(ID_/H61yYOdnqv1xry8GJZ4Vw) Content-type: text/html; charset=Windows-1252 Content-transfer-encoding: 7BIT
K,
 
    We don't know what will actually happen to a Nylon or Phenolic ball when it hits the asphalt at 60 mph.  Perhaps it would self-destruct - perhaps it would only roll.
 
    Point is, it only has to work once to prevent damage to the airplane.  If it does get damaged, it's simple and cheap to replace the ball...
 
    I kinda like the idea of a rollerblade with several rollers contacting the runway at the same time....

Jack Beale
jack.beale@att.net
 
 

 
----- Original Message -----
Sent: Wednesday, April 13, 2005 3:00 PM
Subject: [FlyRotary] Re: Fw: Gear-UP Landings - problem solved...?

Hi Jack,

I've used these rollers in the glass industry for longer than I care to admit
to.  The reason they work nicely in an industrial application is because they
don't have to spin real fast (generally) and the surface of the ball stays
relatively nice and shiny allowing the bearings that it seats in to do their
job.  I'm afraid that with a nylon ball after its initial contact with any
runway surface its exterior will be damaged so quickly that it won't be able
to "float" on its bearings, and it will soon turn into another "hockey puck".
--Boundary_(ID_/H61yYOdnqv1xry8GJZ4Vw)--