---------------------------------------------------------- Lightning-List Digest Archive --- Total Messages Posted Wed 07/09/08: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:41 AM - Why are the constant speed props used on the lightning? (Phil McCandless) 2. 09:41 AM - Why are the constant speed props used on the lightning? (Phil McCandless) 3. 10:05 AM - Re: Why are the constant speed props used on the lightning? (Mark Stauffer) 4. 10:06 AM - Re: Why are the constant speed props used on the lightning? (Pete) 5. 05:20 PM - ATT. NICK (Tex Mantell) 6. 06:57 PM - Re: ATT. NICK (N1BZRich@aol.com) 7. 07:39 PM - Re: ATT. NICK (Jim Langley) ________________________________ Message 1 _____________________________________ Time: 09:41:21 AM PST US From: Phil McCandless Subject: Lightning-List: Why are the constant speed props used on the lightning? Why is no one using the constant speed props on the Lightning?- It is use d on many Jabiru 3300 installations.- Why not the Lightning? Phil Mc C a n d l e s =0A=0A=0A ________________________________ Message 2 _____________________________________ Time: 09:41:23 AM PST US From: Phil McCandless Subject: Lightning-List: Why are the constant speed props used on the lightning? Why is no one using the constant speed props on the Lightning?- It is use d on many Jabiru 3300 installations.- Why not the Lightning? Phil Mc C a n d l e s =0A=0A=0A ________________________________ Message 3 _____________________________________ Time: 10:05:44 AM PST US From: "Mark Stauffer" Subject: RE: Lightning-List: Why are the constant speed props used on the lightning? What type of constant speed prop set up are you talking about? Who is the manufacturer? -----Original Message----- From: owner-lightning-list-server@matronics.com [mailto:owner-lightning-list-server@matronics.com]On Behalf Of Phil McCandless Sent: Wednesday, July 09, 2008 11:39 AM To: Lightning-List Digest List; lightning-list@matronics.com Subject: Lightning-List: Why are the constant speed props used on the lightning? Why is no one using the constant speed props on the Lightning? It is used on many Jabiru 3300 installations. Why not the Lightning? Phil Mc C a n d l e s D======================== ========= D======================== ========= D======================== ========= D======================== ========= ________________________________ Message 4 _____________________________________ Time: 10:06:16 AM PST US From: "Pete" Subject: RE: Lightning-List: Why are the constant speed props used on the lightning? Constant speed props are used on VERY FEW Jabiru engine installations. I think the reason might be that the gain in performance is not worth the large expense of the prop. We did try a three blade Air Master prop with Warp Drive blades on an Esqual back in 2003 and found that we lost 12 mph in cruise from the wood prop we had used on it. We could get great climb but no matter how much pitch we added the cruise speed was not up to the performance of the wood prop. Pete Krotje Jabiru USA Sport Aircraft, LLC _____ From: owner-lightning-list-server@matronics.com [mailto:owner-lightning-list-server@matronics.com] On Behalf Of Phil McCandless Sent: Wednesday, July 09, 2008 11:39 AM Subject: Lightning-List: Why are the constant speed props used on the lightning? Why is no one using the constant speed props on the Lightning? It is used on many Jabiru 3300 installations. Why not the Lightning? Phil Mc C a n d l e s ________________________________ Message 5 _____________________________________ Time: 05:20:16 PM PST US From: "Tex Mantell" Subject: Lightning-List: ATT. NICK Nick, I am trying to come up with a combination tie down point / jack pad. The access to the wing is thru the bell crank hole which is 98" from the fuse. I would expect to have 400 lbs. on the jack pad and was wondering if the spar would support that weight in that area. How do you now support the plane for service of a tire or gear ? Your input would be greatly appreciated. Tex ________________________________ Message 6 _____________________________________ Time: 06:57:07 PM PST US From: N1BZRich@aol.com Subject: Re: Lightning-List: ATT. NICK Hi Tex, Let me jump in here and suggest that you will probably need to provide Nick one additional piece of info for him to be able to figure the actual forces you are talking about. That additional info is - how are you going to use the jack points? What I mean by that is will you only use one at a time to raise just one main wheel off the ground, or do you intend to pick up the complete airplane by using both wing jack points and a tail stand? If you are only gong to lift one main wheel and leave the other main wheel and the nose wheel on the ground than you don't have a 400 pound load near the area of the aileron bell chank. So far I have seen no need for a jack point as there are two simple ways to pick up one wheel for maintenance. One way, just have someone get under one wing (on their hands and knees) out about mid span or more and push up under the spar. When they have the main gear up, place a padded crate (or saw horse -something to hold the wing up) so your buddy is not on his knees for too long a time. The other way, is to find a small scissor jack (like came with the older Corvettes) that will actually fit under the main gear leg bottom fitting and just jack up that wheel. I have also used a floor jack but sometimes I need to air the tire up a little to get the floor jack to fit under the lower gear leg fitting. I have used all of the above procedures on both Lightnings and Esquals with no problems. But your idea of having a jack point in each wing will certainly come in handy when you are doing landing gear retract test. ;-) Blue Skies, Buz **************Get the scoop on last night's hottest shows and the live music scene in your area - Check out TourTracker.com! (http://www.tourtracker.com?NCID=aolmus00050000000112) ________________________________ Message 7 _____________________________________ Time: 07:39:59 PM PST US From: "Jim Langley" Subject: RE: Lightning-List: ATT. NICK Another way is to use a cheap ATV jack. They go down flat and lift fairly high. You can always put a box with padding on top of it to increase the height. I found one used for $35.00. Here's a link to what they look like. http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=2792 Jim! From: owner-lightning-list-server@matronics.com [mailto:owner-lightning-list-server@matronics.com] On Behalf Of N1BZRich@aol.com Sent: Wednesday, July 09, 2008 9:55 PM Subject: Re: Lightning-List: ATT. NICK Hi Tex, Let me jump in here and suggest that you will probably need to provide Nick one additional piece of info for him to be able to figure the actual forces you are talking about. That additional info is - how are you going to use the jack points? What I mean by that is will you only use one at a time to raise just one main wheel off the ground, or do you intend to pick up the complete airplane by using both wing jack points and a tail stand? If you are only gong to lift one main wheel and leave the other main wheel and the nose wheel on the ground than you don't have a 400 pound load near the area of the aileron bell chank. So far I have seen no need for a jack point as there are two simple ways to pick up one wheel for maintenance. One way, just have someone get under one wing (on their hands and knees) out about mid span or more and push up under the spar. When they have the main gear up, place a padded crate (or saw horse -something to hold the wing up) so your buddy is not on his knees for too long a time. The other way, is to find a small scissor jack (like came with the older Corvettes) that will actually fit under the main gear leg bottom fitting and just jack up that wheel. I have also used a floor jack but sometimes I need to air the tire up a little to get the floor jack to fit under the lower gear leg fitting. I have used all of the above procedures on both Lightnings and Esquals with no problems. But your idea of having a jack point in each wing will certainly come in handy when you are doing landing gear retract test. ;-) Blue Skies, Buz _____ Get the scoop on last night's hottest shows and the live music scene in your area - Check out TourTracker.com! ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lightning-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Lightning-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/lightning-list Browse Digests http://www.matronics.com/digest/lightning-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.