---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Fri 12/03/04: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:00 AM - 540 service manual (Stewart, Michael (ISS Atlanta)) 2. 07:10 AM - vibration (Milt) 3. 09:00 AM - Re: vibration (LesDrag@aol.com) 4. 02:22 PM - Re: vibration (Bob J) 5. 02:42 PM - Re: vibration (Bob J) 6. 08:53 PM - Re: vibration (LesDrag@aol.com) 7. 10:02 PM - Re: RV-List: Polishing Aluminum (JOHN STARN) ________________________________ Message 1 _____________________________________ Time: 05:00:09 AM PST US Subject: Rocket-List: 540 service manual From: "Stewart, Michael (ISS Atlanta)" --> Rocket-List message posted by: "Stewart, Michael (ISS Atlanta)" Where does one find a free 540 service manual on-line for download? I need to print one for the shop. Thanks Mike Do not archive S8 wiring ________________________________ Message 2 _____________________________________ Time: 07:10:42 AM PST US From: "Milt" Subject: Rocket-List: vibration --> Rocket-List message posted by: "Milt" I appreciate everyones input on this and am sorry I haven't got back to everyone sooner but work sometimes buries us to the exclusion of all else. I have pretty much (after a great deal of input) come to the same conclusion as Mark in that I think it is propwash from that long 2 blade and will probably soon opt for a 3 blade conversion. That brings up an entire host of new issues ie: which prop. And what are the thoughts of an engine "taking a set" to a 2 blade and not being convertible to a 3 blade after so many hours. Again thanks for all the input. Milt ________________________________ Message 3 _____________________________________ Time: 09:00:38 AM PST US From: LesDrag@aol.com Subject: Re: Rocket-List: vibration --> Rocket-List message posted by: LesDrag@aol.com Hi Milt, A 2 blade propeller has a 2nd order harmonic. The 3 blade propeller does not have this 2nd order harmonic. The harmonic doesn't "take a set". It's there with 2 blades, and not there with 3 blades. I have two Rocket 3 blade MT propellers listed on my website in the "New & Used" page under "Propellers". One standard propeller and one aerobatic propeller. _www.lessdrag.com_ (http://www.lessdrag.com) Regards, Jim Ayers Less Drag Products, Inc. - An MT Propeller distributor In a message dated 12/03/2004 7:11:34 AM Pacific Standard Time, rocket@swmrmc.org writes: --> Rocket-List message posted by: "Milt" I appreciate everyones input on this and am sorry I haven't got back to everyone sooner but work sometimes buries us to the exclusion of all else. I have pretty much (after a great deal of input) come to the same conclusion as Mark in that I think it is propwash from that long 2 blade and will probably soon opt for a 3 blade conversion. That brings up an entire host of new issues ie: which prop. And what are the thoughts of an engine "taking a set" to a 2 blade and not being convertible to a 3 blade after so many hours. Again thanks for all the input. Milt ________________________________ Message 4 _____________________________________ Time: 02:22:15 PM PST US DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; b=HgriYXW4evEKEiYGN5z3gVPQqs1vhkM5eUv/beTmjLXKecmmNX8UJg4Ny03c8082aMiomDccQxp/QEQ8Lw0mQNsa4lvFEBjOevYdwo2vf3cdXuYmAwjT5lCIyNSXWBerG/wjfA9L91srOw4Z3Wqcyr4k+qKK1D0iI0qQscct+moReceived: by 10.38.70.8 with SMTP id s8mr1658430rna; Fri, 03 Dec 2004 14:19:13 -0800 (PST) From: Bob J Subject: Re: Rocket-List: vibration --> Rocket-List message posted by: Bob J Jim, respectfully that is not true. This "thumping" vibration is still present with the MT installations, though it is diminished. It is smoother no doubt but it is inaccurate to say that the "thumping" vibration goes away with the MT. That has been my experience with it. My 180hp RV with a Hartzell is smoother than a 540 with an MT in a Rocket. Regards, Bob On Fri, 3 Dec 2004 12:00:05 EST, lesdrag@aol.com wrote: > --> Rocket-List message posted by: LesDrag@aol.com > > Hi Milt, > > A 2 blade propeller has a 2nd order harmonic. The 3 blade propeller does > not have this 2nd order harmonic. The harmonic doesn't "take a set". It's > there with 2 blades, and not there with 3 blades. > > I have two Rocket 3 blade MT propellers listed on my website in the "New & > Used" page under "Propellers". One standard propeller and one aerobatic > propeller. > _www.lessdrag.com_ (http://www.lessdrag.com) > > Regards, > Jim Ayers > Less Drag Products, Inc. - An MT Propeller distributor > > In a message dated 12/03/2004 7:11:34 AM Pacific Standard Time, > > > rocket@swmrmc.org writes: > > --> Rocket-List message posted by: "Milt" > > I appreciate everyones input on this and am sorry I haven't got back to > everyone sooner but work sometimes buries us to the exclusion of all else. > > I have pretty much (after a great deal of input) come to the same conclusion > as Mark in that I think it is propwash from that long 2 blade and will > probably soon opt for a 3 blade conversion. > > That brings up an entire host of new issues ie: which prop. > > And what are the thoughts of an engine "taking a set" to a 2 blade and not > being convertible to a 3 blade after so many hours. > > Again thanks for all the input. > > Milt > > > ________________________________ Message 5 _____________________________________ Time: 02:42:22 PM PST US DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; b=HgriYXW4evEKEiYGN5z3gVPQqs1vhkM5eUv/beTmjLXKecmmNX8UJg4Ny03c8082aMiomDccQxp/QEQ8Lw0mQNsa4lvFEBjOevYdwo2vf3cdXuYmAwjT5lCIyNSXWBerG/wjfA9L91srOw4Z3Wqcyr4k+qKK1D0iI0qQscct+moReceived: by 10.38.70.8 with SMTP id s8mr1658430rna; Fri, 03 Dec 2004 14:19:13 -0800 (PST) From: Bob J Subject: Re: Rocket-List: vibration --> Rocket-List message posted by: Bob J Jim, respectfully that is not true. This "thumping" vibration is still present with the MT installations, though it is diminished. It is smoother no doubt but it is inaccurate to say that the "thumping" vibration goes away with the MT. That has been my experience with it. My 180hp RV with a Hartzell is smoother than a 540 with an MT in a Rocket. Regards, Bob On Fri, 3 Dec 2004 12:00:05 EST, lesdrag@aol.com wrote: > --> Rocket-List message posted by: LesDrag@aol.com > > Hi Milt, > > A 2 blade propeller has a 2nd order harmonic. The 3 blade propeller does > not have this 2nd order harmonic. The harmonic doesn't "take a set". It's > there with 2 blades, and not there with 3 blades. > > I have two Rocket 3 blade MT propellers listed on my website in the "New & > Used" page under "Propellers". One standard propeller and one aerobatic > propeller. > _www.lessdrag.com_ (http://www.lessdrag.com) > > Regards, > Jim Ayers > Less Drag Products, Inc. - An MT Propeller distributor > > In a message dated 12/03/2004 7:11:34 AM Pacific Standard Time, > > > rocket@swmrmc.org writes: > > --> Rocket-List message posted by: "Milt" > > I appreciate everyones input on this and am sorry I haven't got back to > everyone sooner but work sometimes buries us to the exclusion of all else. > > I have pretty much (after a great deal of input) come to the same conclusion > as Mark in that I think it is propwash from that long 2 blade and will > probably soon opt for a 3 blade conversion. > > That brings up an entire host of new issues ie: which prop. > > And what are the thoughts of an engine "taking a set" to a 2 blade and not > being convertible to a 3 blade after so many hours. > > Again thanks for all the input. > > Milt > > > ________________________________ Message 6 _____________________________________ Time: 08:53:45 PM PST US From: LesDrag@aol.com Subject: Re: Rocket-List: vibration --> Rocket-List message posted by: LesDrag@aol.com Hi Bob, Then the "thumping" isn't a 2nd order engine harmonic. On a Lycoming 540 engine in a HR2, I've experienced the 2nd order harmonic with a two different 2 blade propellers and the lack of the 2nd order harmonic with a 3 blade propeller. "Thumping" can be almost anything. I wish you luck in isolating the "thumper". (If it's airframe related, it will eventually fatigue and break. If it's engine and airframe related, there should be chaffing marks showing up. Best to find it first.) Regards, Jim Ayers In a message dated 12/03/2004 2:23:15 PM Pacific Standard Time, rocketbob@gmail.com writes: --> Rocket-List message posted by: Bob J Jim, respectfully that is not true. This "thumping" vibration is still present with the MT installations, though it is diminished. It is smoother no doubt but it is inaccurate to say that the "thumping" vibration goes away with the MT. That has been my experience with it. My 180hp RV with a Hartzell is smoother than a 540 with an MT in a Rocket. Regards, Bob ________________________________ Message 7 _____________________________________ Time: 10:02:58 PM PST US From: "JOHN STARN" Subject: Rocket-List: Re: RV-List: Polishing Aluminum --> Rocket-List message posted by: "JOHN STARN" Have some photos BUT I don't like the way they turned out. Will post "good one's" shortly. KABONG ----- Original Message ----- From: "Scott Jackson" Subject: Re: RV-List: Polishing Aluminum > --> RV-List message posted by: "Scott Jackson" > > > . KABONG >> Do Not Archive HRII is now painted in Aggressor Blue-Gray w/ USAF >> markings > > This I'd like to see; any pictures available? > Scott in Vancouver > do not archive