---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Wed 04/22/09: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:53 AM - Re: DynaVibe prop Balancer (Robin Marks) 2. 04:23 AM - Re: DynaVibe prop Balancer (Chuck Daus) 3. 06:13 AM - Re: DynaVibe prop Balancer (MIKE JEFFERSON) 4. 06:22 AM - Re: DynaVibe prop Balancer (Chris Stone) 5. 07:31 AM - Re: DynaVibe prop Balancer (Richard Tasker) 6. 07:31 AM - Re: DynaVibe prop Balancer (Richard Tasker) 7. 10:09 AM - Re: DynaVibe prop Balancer (MIKE JEFFERSON) 8. 10:24 AM - Re: DynaVibe prop Balancer (Ralph Finch) 9. 03:08 PM - Step Crack () 10. 05:54 PM - Re: Step Crack (Ron Lee) 11. 08:38 PM - Re: Step Crack (Vanremog@aol.com) 12. 09:25 PM - Re: Step Crack (Chuck Weyant) ________________________________ Message 1 _____________________________________ Time: 12:53:47 AM PST US Subject: RE: RV-List: DynaVibe prop Balancer From: "Robin Marks" Zero experience with the device but my local prop shop charges $200 and says he should probably charge more. Should not take long to pay for it. Robin Do Not Archive From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Bill Judge Sent: Tuesday, April 21, 2009 5:05 PM Subject: RV-List: DynaVibe prop Balancer Fellow RV drivers: does anyone have any first hand experience with the DynaVibe dynamic prop balancing test set? http://www.rpxtech.com/rpxweb/Dynavibe.asp They are $1500 I'm kicking around the idea of throwing in with some other experimental owners and getting one. I've had some trouble getting my prop balanced locally and for $1500 it wouldn't take to many interested parties in my EAA Chapter to justify it. I just need to know that it does the job. Thanks Bill N84WJ Checked by AVG - www.avg.com 04/21/09 16:48:00 ________________________________ Message 2 _____________________________________ Time: 04:23:26 AM PST US From: "Chuck Daus" Subject: RE: RV-List: DynaVibe prop Balancer Mike, I am interested in the vibration analyzer you had mentioned about. I am trying to think it through and was wondering how you locate the rotational location to place or remove the weight needed to balance the object you are working on? I have not found any that have a strobe light included. Does your kit have one or is there a different way obtaining this information? Thank you! Chuck _____ From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of MIKE JEFFERSON Sent: Tuesday, April 21, 2009 10:11 PM Subject: RE: RV-List: DynaVibe prop Balancer You may want to go to e-bay and check out an EVA 2 electronic vibration anilizer, got mine for 450.00, new thay run 1600.00 they are used in the auto ind. works like a champ, Michael P. Jefferson _____ Subject: RV-List: DynaVibe prop Balancer From: bjudge@gmail.com Fellow RV drivers: does anyone have any first hand experience with the DynaVibe dynamic prop balancing test set? http://www.rpxtech.com/rpxweb/Dynavibe.asp They are $1500 I'm kicking around the idea of throwing in with some other experimental owners and getting one. I've had some trouble getting my prop balanced locally and for $1500 it wouldn't take to many interested parties in my EAA Chapter to justify it. I just need to know that it does the job. Thanks Bill N84WJ p://www.matronics.com/Navigator?RV-List ronics.com ww.matronics.com/contribution _____ Windows LiveT HotmailR:.more than just e-mail. Check it out. ________________________________ Message 3 _____________________________________ Time: 06:13:12 AM PST US From: MIKE JEFFERSON Subject: RE: RV-List: DynaVibe prop Balancer the strobe light consist of only a timming light=2C been using one for abou t 12 years (EVA) Michael P. Jefferson N9805U From: dauscj@nb.net Subject: RE: RV-List: DynaVibe prop Balancer Mike=2C I am interested in the vibration analyzer you had mentioned about. I am t rying to think it through and was wondering how you locate the rotational l ocation to place or remove the weight needed to balance the object you are working on? I have not found any that have a strobe light included. Does yo ur kit have one or is there a different way obtaining this information? Thank you! Chuck From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matro nics.com] On Behalf Of MIKE JEFFERSON Sent: Tuesday=2C April 21=2C 2009 10:11 PM Subject: RE: RV-List: DynaVibe prop Balancer You may want to go to e-bay and check out an EVA 2 electronic vibration ani lizer=2C got mine for 450.00=2C new thay run 1600.00 they are used in the a uto ind. works like a champ=2C Michael P. Jefferson Subject: RV-List: DynaVibe prop Balancer From: bjudge@gmail.com Fellow RV drivers: does anyone have any first hand experience with the DynaVibe dynamic prop b alancing test set? http://www.rpxtech.com/rpxweb/Dynavibe.asp They are $1500 I'm kicking around the idea of throwing in with some other e xperimental owners and getting one. I've had some trouble getting my prop balanced locally and for $1500 it wouldn't take to many interested parties in my EAA Chapter to justify it. I just need to know that it does the job. Thanks Bill N84WJ p://www.matronics.com/Navigator?RV-List ronics.com ww.matronics.com/contribution Windows Live=99 Hotmail=AE:=85more than just e-mail. Check it out. href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.co m/Navigator?RV-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c _________________________________________________________________ Rediscover Hotmail=AE: Get quick friend updates right in your inbox. http://windowslive.com/RediscoverHotmail?ocid=TXT_TAGLM_WL_HM_Rediscover_ Updates2_042009 ________________________________ Message 4 _____________________________________ Time: 06:22:23 AM PST US From: Chris Stone Subject: Re: RV-List: DynaVibe prop Balancer Our EAA chapter has an electronic prop balance, EAA 105. Not sure if it's a Dynavibe. Email Randy Lervold randy@romeolima.com He will be able to provide details. Chris Stone -----Original Message----- >From: Bill Judge >Sent: Apr 21, 2009 8:05 PM >To: rv-list@matronics.com >Subject: RV-List: DynaVibe prop Balancer > >Fellow RV drivers: >does anyone have any first hand experience with the DynaVibe dynamic prop >balancing test set? > >http://www.rpxtech.com/rpxweb/Dynavibe.asp > >They are $1500 I'm kicking around the idea of throwing in with some other >experimental owners and getting one. I've had some trouble getting my prop >balanced locally and for $1500 it wouldn't take to many interested parties >in my EAA Chapter to justify it. I just need to know that it does the job. > >Thanks >Bill >N84WJ ________________________________ Message 5 _____________________________________ Time: 07:31:46 AM PST US From: Richard Tasker Subject: Re: RV-List: DynaVibe prop Balancer Thanks, but that is really not the information I need. I already know the principles and how one does it in practice. I just don't know enough about the EVA2 to know if it can be used like the description. Possibly it has an output for a strobe and can be used exactly as the description you referenced. If not, it could be used in a trial and error approach. Check the balance. Add a little weight somewhere and see if the balance improves or degrades. Adjust weights appropriately. Fairly easy, but much easier with a synchronized strobe. Dick Vanremog@aol.com wrote: > This link has a pretty good explanation of the principles involved in > dynamic prop balancing. > > http://lists.kjsl.com/pipermail/beech-owners/2003-February/019466.html > > N1GV (RV-6A Flying 920TTAE Silicon Valley, CA) > > In a message dated 4/21/2009 9:09:51 P.M. Pacific Daylight Time, > retasker@optonline.net writes: > > How do you use the EVA2 to determine where to place weights on the > spinner to balance the prop? Trial and error or is there > something that > I don't understand about this analyzer (probably) that would tell > you this? > > > > ------------------------------------------------------------------------ > http://www.matronics.com/contribution ________________________________ Message 6 _____________________________________ Time: 07:31:46 AM PST US From: Richard Tasker Subject: Re: RV-List: DynaVibe prop Balancer So the EVA2 has an output for synchronizing with a strobe? Thanks, Dick MIKE JEFFERSON wrote: > the strobe light consist of only a timming light, been using one for > about 12 years (EVA) > Michael P. Jefferson > N9805U > > > ------------------------------------------------------------------------ > From: dauscj@nb.net > To: rv-list@matronics.com > Subject: RE: RV-List: DynaVibe prop Balancer > Date: Wed, 22 Apr 2009 07:21:16 -0400 > > Mike, > > I am interested in the vibration analyzer you had mentioned about. I > am trying to think it through and was wondering how you locate the > rotational location to place or remove the weight needed to balance > the object you are working on? I have not found any that have a strobe > light included. Does your kit have one or is there a different way > obtaining this information? > > Thank you! > > Chuck > > ------------------------------------------------------------------------ > *From:* owner-rv-list-server@matronics.com > [mailto:owner-rv-list-server@matronics.com] *On Behalf Of *MIKE JEFFERSON > *Sent:* Tuesday, April 21, 2009 10:11 PM > *To:* rv-list@matronics.com > *Subject:* RE: RV-List: DynaVibe prop Balancer > > You may want to go to e-bay and check out an EVA 2 electronic > vibration anilizer, got mine for 450.00, new thay run 1600.00 they are > used in the auto ind. > works like a champ, > Michael P. Jefferson > > ------------------------------------------------------------------------ > Date: Tue, 21 Apr 2009 20:05:18 -0400 > Subject: RV-List: DynaVibe prop Balancer > From: bjudge@gmail.com > To: rv-list@matronics.com > > Fellow RV drivers: > does anyone have any first hand experience with the DynaVibe dynamic > prop balancing test set? > > http://www.rpxtech.com/rpxweb/Dynavibe.asp > > They are $1500 I'm kicking around the idea of throwing in with some > other experimental owners and getting one. I've had some trouble > getting my prop balanced locally and for $1500 it wouldn't take to > many interested parties in my EAA Chapter to justify it. I just need > to know that it does the job. > > Thanks > Bill > N84WJ > > * > > p://www.matronics.com/Navigator?RV-List > ronics.com > ww.matronics.com/contribution > > * > > ------------------------------------------------------------------------ > Windows Live Hotmail:more than just e-mail. Check it out. > * > > href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List > href="http://forums.matronics.com">http://forums.matronics.com > href="http://www.matronics.com/contribution">http://www.matronics.com/c > * > * > > > * > > ------------------------------------------------------------------------ > Rediscover Hotmail: Get quick friend updates right in your inbox. > Check it out. > > > * > > > * ________________________________ Message 7 _____________________________________ Time: 10:09:16 AM PST US From: MIKE JEFFERSON Subject: RE: RV-List: DynaVibe prop Balancer You bet=2C I will look to see if i still have my owners manual and try to r un off a copy=2C > Date: Wed=2C 22 Apr 2009 10:28:51 -0400 > From: retasker@optonline.net > To: rv-list@matronics.com > Subject: Re: RV-List: DynaVibe prop Balancer > > > So the EVA2 has an output for synchronizing with a strobe? > > Thanks=2C Dick > > MIKE JEFFERSON wrote: > > the strobe light consist of only a timming light=2C been using one for > > about 12 years (EVA) > > Michael P. Jefferson > > N9805U > > > > > > ----------------------------------------------------------------------- - > > From: dauscj@nb.net > > To: rv-list@matronics.com > > Subject: RE: RV-List: DynaVibe prop Balancer > > Date: Wed=2C 22 Apr 2009 07:21:16 -0400 > > > > Mike=2C > > > > I am interested in the vibration analyzer you had mentioned about. I > > am trying to think it through and was wondering how you locate the > > rotational location to place or remove the weight needed to balance > > the object you are working on? I have not found any that have a strobe > > light included. Does your kit have one or is there a different way > > obtaining this information? > > > > Thank you! > > > > Chuck > > > > ----------------------------------------------------------------------- - > > *From:* owner-rv-list-server@matronics.com > > [mailto:owner-rv-list-server@matronics.com] *On Behalf Of *MIKE JEFFERS ON > > *Sent:* Tuesday=2C April 21=2C 2009 10:11 PM > > *To:* rv-list@matronics.com > > *Subject:* RE: RV-List: DynaVibe prop Balancer > > > > You may want to go to e-bay and check out an EVA 2 electronic > > vibration anilizer=2C got mine for 450.00=2C new thay run 1600.00 they are > > used in the auto ind. > > works like a champ=2C > > Michael P. Jefferson > > > > ----------------------------------------------------------------------- - > > Date: Tue=2C 21 Apr 2009 20:05:18 -0400 > > Subject: RV-List: DynaVibe prop Balancer > > From: bjudge@gmail.com > > To: rv-list@matronics.com > > > > Fellow RV drivers: > > does anyone have any first hand experience with the DynaVibe dynamic > > prop balancing test set? > > > > http://www.rpxtech.com/rpxweb/Dynavibe.asp > > > > They are $1500 I'm kicking around the idea of throwing in with some > > other experimental owners and getting one. I've had some trouble > > getting my prop balanced locally and for $1500 it wouldn't take to > > many interested parties in my EAA Chapter to justify it. I just need > > to know that it does the job. > > > > Thanks > > Bill > > N84WJ > > > > * > > > > p://www.matronics.com/Navigator?RV-List > > ronics.com > > ww.matronics.com/contribution > > > > * > > > > ----------------------------------------------------------------------- - > > Windows Live=99 Hotmail=AE:=85more than just e-mail. Check it out. > > * > > > > href="http://www.matronics.com/Navigator?RV-List">http://www.matronic s.com/Navigator?RV-List > > href="http://forums.matronics.com">http://forums.matronics.com > > href="http://www.matronics.com/contribution">http://www.matronics.com /c > > * > > * > > > > > > * > > > > ----------------------------------------------------------------------- - > > Rediscover Hotmail=AE: Get quick friend updates right in your inbox. > > Check it out. > > > > > > * > > > > > > * > =========== =========== =========== =========== > > > _________________________________________________________________ Windows Live=99 Hotmail=AE:=85more than just e-mail. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_HM_more_042009 ________________________________ Message 8 _____________________________________ Time: 10:24:09 AM PST US From: "Ralph Finch" Subject: RE: RV-List: DynaVibe prop Balancer A typical dynamic balancer will place an accelerometer on the engine and a small reflective timing tape on the prop along with a cheap light detector. The outputs are sent to the balancer which using equations of vibration will figure out where and how much weight to place on the spinner backplate. No strobe involved, and certainly no trial and error: it's all deterministic. Once the weight is placed, it's measured once again to check the improvement and job done. Our RV club a year ago had a great presentation by a fellow who measures the acceleration (vibration) both fore and aft, not just in the front. Apparently this does a better job. The principles of dynamic balancing are not quantum chromodynamics and the equipment should be inexpensive, so no reason why these things should cost huge amounts. RF -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Richard Tasker Sent: Wednesday, April 22, 2009 7:28 AM Subject: Re: RV-List: DynaVibe prop Balancer Thanks, but that is really not the information I need. I already know the principles and how one does it in practice. I just don't know enough about the EVA2 to know if it can be used like the description. Possibly it has an output for a strobe and can be used exactly as the description you referenced. If not, it could be used in a trial and error approach. Check the balance. Add a little weight somewhere and see if the balance improves or degrades. Adjust weights appropriately. Fairly easy, but much easier with a synchronized strobe. Dick Vanremog@aol.com wrote: > This link has a pretty good explanation of the principles involved in > dynamic prop balancing. > > http://lists.kjsl.com/pipermail/beech-owners/2003-February/019466.html ________________________________ Message 9 _____________________________________ Time: 03:08:22 PM PST US From: Subject: RV-List: Step Crack Well it's happened to me after just 164 Hrs of flying! The right side step is cracked almost 2/3 of the way around with just a little bit of metal holding it together on the outside edge. Looks like I'll have to break it off the rest of the way or it will fall off during my flight to/from Lakeland tomorrow or back North on Friday (Daytona to Hartford CT). I don't think it's repairable so I've ordered a new one from Van's. They seemed to think that others having this problem have beefed up the steps to keep it from repeating in the future....... Fred Stucklen RV-7A N924RV 164 Hrs ________________________________ Message 10 ____________________________________ Time: 05:54:02 PM PST US From: "Ron Lee" Subject: Re: RV-List: Step Crack Befre you break it off, read this http://tinyurl.com/decbxh Ron Lee ----- Original Message ----- From: Sent: Wednesday, April 22, 2009 4:06 PM Subject: RV-List: Step Crack > > Well it's happened to me after just 164 Hrs of flying! The right side step > is cracked almost 2/3 of the way around with just a little bit of metal > holding it together on the outside edge. Looks like I'll have to break it > off the rest of the way or it will fall off during my flight to/from > Lakeland tomorrow or back North on Friday (Daytona to Hartford CT). I > don't think it's repairable so I've ordered a new one from Van's. They > seemed to think that others having this problem have beefed up the steps > to keep it from repeating in the future....... > > Fred Stucklen > RV-7A N924RV 164 Hrs > > > ________________________________ Message 11 ____________________________________ Time: 08:38:37 PM PST US From: Vanremog@aol.com Subject: Re: RV-List: Step Crack Fred- Mine appear to be still good after 920 hrs TTAE. What is the "Bubba Factor" usually for your passengers? N1GV (RV-6A Flying 920TTAE Silicon Valley, CA) In a message dated 4/22/2009 3:09:43 P.M. Pacific Daylight Time, wstucklen1@cox.net writes: Well it's happened to me after just 164 Hrs of flying! The right side step is cracked almost 2/3 of the way around with just a little bit of metal holding it together on the outside edge. **************Big savings on Dell XPS Laptops and Desktops! eclick.net%2Fclk%3B214133109%3B36002181%3Bk) ________________________________ Message 12 ____________________________________ Time: 09:25:28 PM PST US From: "Chuck Weyant" Subject: Re: RV-List: Step Crack After discovering that mine was cracked two years ago --- 2/3 of the way around also, I drilled the rivets out, took it down to my local professional welder. He looked it over and said he'd advise against using any reinforcements like gussets, etc. He rewelded it. I had it powder coated again and it's been just fine since. Based on my experience, I'd have it rewelded. Match drilling all those holes would be a bitch. Maybe you should think about wrapping a reinforcement around the break like, damn I hate to say this, duct tape to keep it from moving and getting any worse or falling off in flight, until you get home??? Chuck ------------------------------------------------- From: Sent: Wednesday, April 22, 2009 3:06 PM Subject: RV-List: Step Crack > > Well it's happened to me after just 164 Hrs of flying! The right side step > is cracked almost 2/3 of the way around with just a little bit of metal > holding it together on the outside edge. Looks like I'll have to break it > off the rest of the way or it will fall off during my flight to/from > Lakeland tomorrow or back North on Friday (Daytona to Hartford CT). I > don't think it's repairable so I've ordered a new one from Van's. They > seemed to think that others having this problem have beefed up the steps > to keep it from repeating in the future....... > > Fred Stucklen > RV-7A N924RV 164 Hrs > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv-list Browse Digests http://www.matronics.com/digest/rv-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.