X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.129.170.194] (HELO VIRCOM1.fcdata.private) by logan.com (CommuniGate Pro SMTP 5.4.6) with ESMTP id 5652690 for flyrotary@lancaironline.net; Sun, 15 Jul 2012 12:41:31 -0400 Received-SPF: none receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber@texasattorney.net Received: from FCD-MAIL05.FCDATA.PRIVATE (unverified [172.16.5.24]) by VIRCOM1.fcdata.private (Vircom SMTPRS 5.1.1024.13396) with ESMTP id for ; Sun, 15 Jul 2012 11:40:21 -0500 X-Modus-BlackList: 172.16.5.24=OK;cbarber@texasattorney.net=OK X-Modus-RBL: 172.16.5.24=Excluded X-Modus-Trusted: 172.16.5.24=NO X-Modus-Audit: FALSE;0;0;0 Received: from FCD-MAIL06.FCDATA.PRIVATE ([fe80::697f:d6aa:b87:78d8]) by FCD-MAIL05.FCDATA.PRIVATE ([fe80::809d:a06e:5913:452e%13]) with mapi id 14.01.0355.002; Sun, 15 Jul 2012 11:40:46 -0500 From: Chris Barber To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: Prop leading edge tape Thread-Topic: [FlyRotary] Re: Prop leading edge tape Thread-Index: AQHNYqdB1LG1yexZSU6AAIJUyhGJ/JcqizcX Date: Sun, 15 Jul 2012 16:41:47 +0000 Message-ID: <2D41F9BF3B5F9842B164AF93214F3D30F062AF6D@FCD-MAIL06.FCDATA.PRIVATE> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [69.148.239.250] Content-Type: multipart/alternative; boundary="_000_2D41F9BF3B5F9842B164AF93214F3D30F062AF6DFCDMAIL06FCDATA_" MIME-Version: 1.0 --_000_2D41F9BF3B5F9842B164AF93214F3D30F062AF6DFCDMAIL06FCDATA_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I don't think the vibration was due to it not being balanced in flight cuz = as you say, it is pretty light, I think it was due to it ripping off somewh= at gradually, flopping in the wind and causing a distortion to the prop pat= h until it ripped off completely. It did clear up after a moment, but I g= ot my butt back on the ground regardless. ________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of = Bill Bradburry [bbradburry@bellsouth.net] Sent: Sunday, July 15, 2012 11:29 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Prop leading edge tape Chris, Is that tape heavy enough to unbalance a blade to the point that you would = feel it in flight? It seems that it would be pretty light?? Bill B ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Chris Barber Sent: Sunday, July 15, 2012 10:59 AM To: Rotary motors in aircraft Subject: [FlyRotary] Prop leading edge tape I had my forth flight yesterday. I am still just circling the field. Ever= ything was going well. Temps and pressures were all well in the green and I= was "playing' (ok, a kinda cavalier term for testing) with prop pitch, tri= m and power settings when I suddenly felt a distinct, slight to moderate vi= bration coming from the rear of the plane. I called the tower and with cal= m winds was cleared for any runway. I did a tight right turn to 22 and lan= ded. Has it been mentioned that these canards really don't want to land...= I floated quite a bit down the runway...gotta not try to bleed off speed by= slightly lifting the nose.....damned bad Cessna habits ;-) Anyway, I landed and taxied back to the hangar, the vibration had stopped. = I got out and did my quick inspection and it was immediately obvious that = one of the prop leading edge tapes had departed the craft and another was s= tarting to tear off. Well, at least it seems I quickly discovered the prob= lem...kinda what testing is all about. This is an IVO in flight adjustable prop on my Velocity. I have been using= the stainless steel prop tape as provided by IVO. I used the same tape du= ring ground testing, but replaced it all just before first flight. Interes= tingly, it was pretty difficult to get off...as in it required quite a bit = of force. I did have some issue with the tape un-attaching a bit during gr= ound testing at the edges but had hoped it would be okay once I replaced it= and secured it better. IVO has an online video showing how to install. It is quite straight forwa= rd, but I did note they now add some superglue to the edges of the tape. I= do not recall that being a part of it when I got the prop, however, I did = see the video before the latest tape replacement and I DID add the superglu= e to the leading edge. I also was very thorough when cleaning the prop bef= ore adding the tape....I think I used Acetone for this step. Anyway, I have not had success with the method in the video. I was thinking= of masking off the prop except where the tape goes and applying some of th= e 3M Super 77 (I think it is the 77...red can) to attach the tape. I had g= ood success with this when sticking sandpaper to long I-beams for sanding m= y wings, needing heat to ultimatley removing it...alas, sanding blocks and = props are two different creatures. So? What say ye? Ideas, comments etc. I had one person mention that they = don't like the tape but understand its use to help protect the prop. Do we= know if it is doing more than protecting from minor fod and, I guess rain?= ? Thanks in advance folks. Chris --_000_2D41F9BF3B5F9842B164AF93214F3D30F062AF6DFCDMAIL06FCDATA_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I don't think the vibration was due to it not being balanced in flight&n= bsp;cuz as you say, it is pretty light, I think it was due to= it ripping off somewhat gradually, flopping in the wind and causing a dist= ortion to the prop path until it ripped off completely.   It did clear up after a moment, but I got my b= utt back on the ground regardless.

From: Rotary motors in aircraft [flyrotary= @lancaironline.net] on behalf of Bill Bradburry [bbradburry@bellsouth.net]<= br> Sent: Sunday, July 15, 2012 11:29 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Prop leading edge tape

Chris,

Is that tape he= avy enough to unbalance a blade to the point that you would feel it in flig= ht?   It seems that it would be pretty light??

&= nbsp;

Bill B

&= nbsp;

From:= Rotary motors in aircraft [mailto:flyrotary@lancaironline.n= et] On Behalf Of Chris Barber Sent: Sunday, July 15, 2012= 10:59 AM
To: Rotary motors in aircra= ft
Subject: [FlyRotary] Prop l= eading edge tape

 

I had my forth flight yesterday= .  I am still just circling the field.  Everything was going well= . Temps and pressures were all well in the green and I was "playing' (ok, a kinda cavalier term for testing) with pro= p pitch, trim and power settings when I suddenly felt a distinct, slight to= moderate vibration coming from the rear of the plane.  I called the t= ower and with calm winds was cleared for any runway.  I did a tight right turn to 22 and landed.  Has it been mentioned tha= t these canards really don't want to land...I floated quite a bit down the = runway...gotta not try to bleed off speed by slightly lifting the nose.....= damned bad Cessna habits ;-)

 

Anyway, I landed and = taxied back to the hangar, the vibration had stopped.  I got out and d= id my quick inspection and it was immediately obvious that one of the prop leading edge tapes had departed the craft and another was = starting to tear off.  Well, at least it seems I quickly discovered th= e problem...kinda what testing is all about.

 

This is an IVO in flight a= djustable prop on my Velocity.  I have been using the stainless steel = prop tape as provided by IVO.  I used the same tape during ground testing, but replaced it all just before first flight. = Interestingly, it was pretty difficult to get off...as in it required quit= e a bit of force.  I did have some issue with the tape un-attachi= ng a bit during ground testing at the edges but had hoped it would be okay once I replaced it and secured it better.

 

IVO has an online video sh= owing how to install.  It is quite straight forward, but I did note th= ey now add some superglue to the edges of the tape.  I do not recall that being a part of it when I got the prop, however, I di= d see the video before the latest tape replacement and I DID add the superg= lue to the leading edge.  I also was very thorough when cleaning = the prop before adding the tape....I think I used Acetone for this step.

 

Anyway, I have not had success = with the method in the video. I was thinking of masking off the prop e= xcept where the tape goes and applying some of the 3M Super 77 (I think it is the 77...red can) to attach the tape. = I had good success with this when sticking sandpaper to long I-beams for s= anding my wings, needing heat to ultimatley removing it...alas, sandin= g blocks and props are two different creatures.

 

So? What say ye?  Ideas, c= omments etc.  I had one person mention that they don't like the tape b= ut understand its use to help protect the prop.  Do we know if it is doing more than protecting from minor fod and, I gue= ss rain??

 

Thanks in advance folks.=

 

Chris

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