Kolb-List Digest Archive

Thu 02/18/10


Total Messages Posted: 22



Today's Message Index:
----------------------
 
     1. 03:03 AM - cruise control (Ted Cowan)
     2. 03:32 AM - Re: In flight Adjustable Trim (icrashrc)
     3. 05:53 AM - Re: Valley Engineering Big-Twin - Any one flying with one? (Thom Riddle)
     4. 05:59 AM - Re: Valley Engineering Big-Twin - Any one flying with one? (Ellery Batchelder Jr)
     5. 06:09 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with one? (Mike Welch)
     6. 06:48 AM - Re: Re: In flight Adjustable Trim (John Hauck)
     7. 06:48 AM - spot recall (frank.goodnight)
     8. 06:48 AM - Re: Re: In flight Adjustable Trim (Ellery Batchelder Jr)
     9. 07:07 AM - Re: Valley Engineering Big-Twin - Any one flying with one? (lucien)
    10. 07:12 AM - Re: In Flight Adjustable Trim (william sullivan)
    11. 07:23 AM - Re: Valley Engineering Big-Twin - Any one flying with one? (Herb)
    12. 07:43 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with one? (Richard & Martha Neilsen)
    13. 08:16 AM - Two Stroke Rotax (Richard & Martha Neilsen)
    14. 08:22 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with one? (Mike Welch)
    15. 08:45 AM - Re: Two Stroke Rotax (lucien)
    16. 08:47 AM - Re: Two Stroke Rotax (daniel myers)
    17. 08:51 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with 	one? (Robert Laird)
    18. 08:57 AM - Re: Two Stroke Rotax (lucien)
    19. 09:51 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with 	one? (Mike Welch)
    20. 10:33 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with one? (Herb)
    21. 11:04 AM - Re: Re: Valley Engineering Big-Twin - Any one flying with one? (Mike Welch)
    22. 11:52 AM - Re: Valley Engineering Big-Twin - Any one flying with one? (Jimmy Young)
 
 
 


Message 1


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    Time: 03:03:56 AM PST US
    From: "Ted Cowan" <tc1917@bellsouth.net>
    Subject: cruise control
    Been watching the blurbs about elevator trim controls. When I purchased my Kolb Slingshot, the man who started it made a screw control unit out of a black and decker hand screwdriver, 9v I think. The tab on the screw that moved was hooked to a spring directly to the cable imput on the stick. I have a double throw switch for more or less tension on the springs (I put two). It works great. I think there was something about it was dangerous because someone could not follow directions and it locked up and he crashed or something. I really dont know how this could happen. It is only a set of springs and even if it went to max and stuck, it is easily offset by moving the stick, would just give you a heavy stick you would have to push forward. I dont think that would be a big problem. I love I can electrically trim my elevator while flying, especially with two up and full load of gas. Can fly almost hands free with full load in my slingshot. Without a passenger, I CAN fly hands off. The directions and instructions for this is in the archives somewhere I think. If not I could probably find most of the directions somewhere. By the way, I have sent my exhaust system to aircraft exhaust and they are mounting a real muffler on it so it should quiet me down considerably. I know it made my wallet real quiet for awhile. I would pay just about anything to get rid of the rum rum. If it doesnt, it will sure make it easier to find where it is. Wait for a week and see I guess. Ted Cowan, Alabama, Slingshot 912UL


    Message 2


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    Time: 03:32:04 AM PST US
    Subject: Re: In flight Adjustable Trim
    From: "icrashrc" <icrashrc@aol.com>
    You mean like this? http://www.ill-eagleaviation.com/electric_flap_drive.htm elleryweld(at)aol.com wrote: > that gives me an Idea I have an electric actuator now Im thinking I should install that and set it up so I can go a tad negative on the flaps and make the flaps electric, get two birds with one shot. > I really like this list even if it makes my mind go to another world once in a while you guys are always interesting,help full and full of things I cant seem to think of once in a while > and its really nice to not have any bickering > > > Ellery Batchelder Jr. > > > -- -------- Scott www.ill-EagleAviation.com do not archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286909#286909


    Message 3


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    Time: 05:53:53 AM PST US
    Subject: Re: Valley Engineering Big-Twin - Any one flying with one?
    From: "Thom Riddle" <riddletr@gmail.com>
    Jerb, Jimmy Young posted a lot of useful information about his trials with that engine on his heavy FSII. Do a search and you should find it. Bottom line for him was it was not enough engine for this heavy of an airplane so he finally switched to an HKS (I think). Jimmy, correct me if my memory is wrong. -------- Thom Riddle Buffalo, NY Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 An honest politician is one who, when he is bought, will stay bought. - Simon Cameron Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286919#286919


    Message 4


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    Time: 05:59:15 AM PST US
    Subject: Re: Valley Engineering Big-Twin - Any one flying with one?
    From: Ellery Batchelder Jr <elleryweld@aol.com>
    I put over 900 Hours on a 447 Rotax single ignition in my old firestar wit hout a problem nice little engine in my book easy on fuel plenty of power for a heavy firestar I thought,and I could out climb any thing at any air port and I could stay with a bunch of friends GA planes and go bye a few of them with it. the 503 another good engine plenty of power some people really think they need it because it has dual ignition compared to the 447 I have flow n with the 503 a lot less hours but plenty of friends have them that I fl y with and I can only say they have had ignition problems more than I have on much newer engines just my experience Ellery Batchelder Jr. -----Original Message----- From: jerb <ulflyer@verizon.net> Sent: Thu, Feb 18, 2010 1:02 am Subject: Kolb-List: Valley Engineering Big-Twin - Any one flying with one? Hi folks, I posted this some time back, didn't get much response. Some time has pass ed and other folks may now had one and other that do have had some time to form an opinion regarding the engine. So for those that have or are now flying with this engine, how about a lit tle report on how you feel about the engine, it's power output, comparison to typical Rotax's like the 447 or 503, and reliability. Thanks, jerb ======================== ============ ======================== ============ ======================== ============ ======================== ============


    Message 5


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    Time: 06:09:09 AM PST US
    From: Mike Welch <mdnanwelch7@hotmail.com>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one? > Jimmy=2C correct me if my memory is wrong. > > -------- > Thom Riddle > Buffalo=2C NY > Kolb Slingshot SS-021 > Jabiru 2200A #1574 > Tennessee Prop 64x32 Thom=2C I'm not Jimmy=2C although I have done that to a few locks. If I'm not m istaken=2C Jimmy had the Generac motor=2C with the Valley Engineering Redrive. THAT engine wasn 't enough for his plane. No one=2C to my knowledge (vast as it is) on the Kolb list=2C uses the "B ig Twin"=2C which is a VW engine cut down from 4 cylinders to just 2. Correct me if I'm wrong=2C Jimmie. Mike Welch MkIII CX snow-belt Missouri _________________________________________________________________ Hotmail: Trusted email with Microsoft=92s powerful SPAM protection.


    Message 6


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    Time: 06:48:17 AM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: In flight Adjustable Trim
    You mean like this? http://www.ill-eagleaviation.com/electric_flap_drive.htm Scott Scott/Gang: How fast is the actuator through full travel? The MKIII doesn't like to climb with full or half flaps. Climbs much better clean. I like the almost instantaneous capability of going from full flaps in landing configuration to climbing out clean in a go around situation. Infinite adjustment of flap angle might be fun to play with in the air. Global warming is ruining my flying. My airplane needs to be washed when the ice in the bucket and the hose thaws. john hauck mkIII Titus, Alabama


    Message 7


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    Time: 06:48:17 AM PST US
    From: "frank.goodnight" <frank.goodnight@att.net>
    Subject: spot recall
    Hi all, I received an e mail from spot this morning, they said the problem was fixed and they had begun to ship the recalled units today, and would have all of them returned by the first week in March. I will be glad to get mine in time for the trip to MV . The problem was with units with a ESN # equal to or less than 0-8053925. [their wording not mine] . For more info go to www.findmespot.com/exchange Frank Goodnight firestar 2 Brownsville TX


    Message 8


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    Time: 06:48:17 AM PST US
    Subject: Re: In flight Adjustable Trim
    From: Ellery Batchelder Jr <elleryweld@aol.com>
    Thats what I have in my hand but the one I have is longer, I have the web site handy so I can get what I need if it needs to be a short one Ellery Batchelder Jr. -----Original Message----- From: icrashrc <icrashrc@aol.com> Sent: Thu, Feb 18, 2010 6:31 am Subject: Kolb-List: Re: In flight Adjustable Trim You mean like this? http://www.ill-eagleaviation.com/electric_flap_drive.htm lleryweld(at)aol.com wrote: that gives me an Idea I have an electric actuator now Im thinking I shou ld nstall that and set it up so I can go a tad negative on the flaps and make the laps electric, get two birds with one shot. I really like this list even if it makes my mind go to another world once n a while you guys are always interesting,help full and full of things I cant eem to think of once in a while and its really nice to not have any bickering Ellery Batchelder Jr. -- ------- cott www.ill-EagleAviation.com do not archive ead this topic online here: http://forums.matronics.com/viewtopic.php?p=286909#286909 ======================== =========== -= - The Kolb-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?Kolb-List - -======================== ======================== =========== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== ======================== =========== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ======================== ===========


    Message 9


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    Time: 07:07:16 AM PST US
    Subject: Re: Valley Engineering Big-Twin - Any one flying with one?
    From: "lucien" <lstavenhagen@hotmail.com>
    elleryweld(at)aol.com wrote: > I put over 900 Hours on a 447 Rotax single ignition in my old firestar without a problem nice little engine in my book easy on fuel plenty of power for a heavy firestar I thought,and I could out climb any thing at any airport and I could stay with a bunch of friends GA planes and go bye a few of them with it. > the 503 another good engine plenty of power some people really think they need it because it has dual ignition compared to the 447 I have flown with the 503 a lot less hours but plenty of friends have them that I fly with and I can only say they have had ignition problems more than I have on much newer engines > just my experience > The only engine-out I've ever had flying a 2-stroke was with the 447 and it was an ignition "problem". I put quotes around that because the fault wasn't with the engine, it was a wiring problem of mine that I introduced when I installed it on the plane. But you do indeed have one and only one ignition system on the engine. I did and do feel a little more comfortable with the 503 as a result, but I'll still happily fly a 447 too just keeping the lack of redundancy in the ignition in mind. The 447 is the longest-lasting engine in the 2-stroke line followed closely by the 503. The only other drag about the 447 is it tends to run hotter especially at higher power settings. It's basically a suped-up 377 with a much better provision 8 crankcase and bottom end, so the cooling isn't quite as good as on the 503. I think Steve Beatty has something approaching 1400 hours on a 447 and it's still going. In the field, there's lots of guys with over 500 hours and getting near 1000 with the 447. IMO, the 447 and 503 are aviation's best kept secrets in the 40 and 50hp range. Lots of folks are out paying 10 grand for 4-strokes because they're afraid of the 2-strokes for some reason. But us guys who've spent a lot of time in front of/underneath the air-cooled rotaxen enjoy the higher bang/buck ratio they offer ;). LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286934#286934


    Message 10


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    Time: 07:12:51 AM PST US
    From: william sullivan <williamtsullivan@att.net>
    Subject: Re: In Flight Adjustable Trim
    - Ellery- GM electric window regulators are used in a lot of equipment, b ut I don't know about the relative weight. - ------------------------- --------------- Bill Sullivan ------------------------- --------------- Windsor Locks, Ct ------------------------- --------------- FS 447 ------------------------- --------------- 38 degrees, sunny


    Message 11


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    Time: 07:23:29 AM PST US
    From: Herb <herbgh@nctc.com>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with one?
    Dick Starks wife,Dawn Patrol web site, is flying in front of one...Why not try there...? Maybe the only one on a Kolb/ Herb At 12:02 AM 2/18/2010, you wrote: > >Hi folks, >I posted this some time back, didn't get much response. Some time >has passed and other folks may now had one and other that do have >had some time to form an opinion regarding the engine. > >So for those that have or are now flying with this engine, how about >a little report on how you feel about the engine, it's power output, >comparison to typical Rotax's like the 447 or 503, and reliability. >Thanks, >jerb > > >Checked by AVG - www.avg.com >02/17/10 07:35:00


    Message 12


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    Time: 07:43:38 AM PST US
    From: "Richard & Martha Neilsen" <NeilsenRM@comcast.net>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one? Mike/All The valley Big Twin is the Generac. I talked in depth with Larry Smith at Valley last summer at Oshkosh about Jimmy's big twin installation. Larry indicated that his performance was compromised a bit by prop selection. They are working on a turbo version that should give 503 level performance. Jimmy indicated that Valley bolted the engine directly to the engine mount without vibration dampers. I told Larry and Jimmy that I didn't think that was a good idea. I was told by someone else that Valley gets the weight down on the genrac by cutting most of the fly wheel off. I have not confirmed it. Rick Neilsen Redrive VW powered MKIIIC ----- Original Message ----- From: Mike Welch To: kolb-list@matronics.com Sent: Thursday, February 18, 2010 9:06 AM Subject: RE: Kolb-List: Re: Valley Engineering Big-Twin - Any one flying with one? > Jimmy, correct me if my memory is wrong. > > -------- > Thom Riddle > Buffalo, NY > Kolb Slingshot SS-021 > Jabiru 2200A #1574 > Tennessee Prop 64x32 Thom, I'm not Jimmy, although I have done that to a few locks. If I'm not mistaken, Jimmy had the Generac motor, with the Valley Engineering Redrive. THAT engine wasn't enough for his plane. No one, to my knowledge (vast as it is) on the Kolb list, uses the "Big Twin", which is a VW engine cut down from 4 cylinders to just 2. Correct me if I'm wrong, Jimmie. Mike Welch MkIII CX snow-belt Missouri ------------------------------------------------------------------------- ----- Hotmail: Trusted email with Microsoft=92s powerful SPAM protection. Sign up now.


    Message 13


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    Time: 08:16:20 AM PST US
    From: "Richard & Martha Neilsen" <NeilsenRM@comcast.net>
    Subject: Two Stroke Rotax
    Ellery/Lucian When you guys take off on a whole new thread it would be best to change the subject line. Also just looked at Rotax 503 engine/redrive prices they are in the $6-7 thousand range depending on options and the 912 is closer to $20,000. Wow. We really need a Rotax alternative. Do not archive Rick Neilsen Redrive VW Powered MKIIIC ----- Original Message ----- From: Ellery Batchelder Jr To: kolb-list@matronics.com Sent: Thursday, February 18, 2010 8:35 AM Subject: Re: Kolb-List: Valley Engineering Big-Twin - Any one flying with one? I put over 900 Hours on a 447 Rotax single ignition in my old firestar without a problem nice little engine in my book easy on fuel plenty of power for a heavy firestar I thought,and I could out climb any thing at any airport and I could stay with a bunch of friends GA planes and go bye a few of them with it. the 503 another good engine plenty of power some people really think they need it because it has dual ignition compared to the 447 I have flown with the 503 a lot less hours but plenty of friends have them that I fly with and I can only say they have had ignition problems more than I have on much newer engines just my experience Ellery Batchelder Jr. -----Original Message----- From: jerb <ulflyer@verizon.net> To: Kolb List <kolb-list@matronics.com> Sent: Thu, Feb 18, 2010 1:02 am Subject: Kolb-List: Valley Engineering Big-Twin - Any one flying with one? Hi folks, I posted this some time back, didn't get much response. Some time has passed and other folks may now had one and other that do have had some time to form an opinion regarding the engine. So for those that have or are now flying with this engine, how about a little report on how you feel about the engine, it's power output, comparison to typical Rotax's like the 447 or 503, and reliability. Thanks, jerb =========== et=_blank>http://www.matronics.com/Navigator?Kolb-List =========== ://forums.matronics.com =========== lank>http://www.matronics.com/contribution ===========


    Message 14


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    Time: 08:22:58 AM PST US
    From: Mike Welch <mdnanwelch7@hotmail.com>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one? Rick N=2C Oops=2C I misspoke about the "Big Twin". It isn't the half-VW I said it was. It is the Generac V-twin. (I said my knowledge was vast=2C I didn't say it was accurate!!) Yes=2C I know they were planning on putting a turbo on the Generac=2C I s aw it. When I drove down to meet the folks at Valley Engineering last sum mer=2C they gave me the "dime tour". The whole operation is a family affai r=2C and all of them working there are related. (nice people=2C BTW) The Generac motor with the turbo is a very basic installation. Basically =2C they just bolted a small turbo on the motor=2C period! I don't believ e they are going to deal with the fuel/air ratio change=2C or any other tur bo-installation issues. Larry (@ Valley Enr'g) and I talked about this. I'm not too sure how successful the basic turbo installation will be. I think that's why it hasn't gone too far. IMO=2C if you require a turbo on a Generac just to make it worthwhile to power a plane=2C you're much better with off with a 503!! For the Genera c to be a successful airplane engine=2C there needs to be a hellava lot mor e engineering and development on it. Mike Welch From: NeilsenRM@comcast.net Subject: Re: Kolb-List: Re: Valley Engineering Big-Twin - Any one flying wi th one? Mike/All The valley Big Twin is the Generac. I talked in depth with Larry Smith at V alley last summer at Oshkosh about Jimmy's big twin installation. Larry ind icated that his performance was compromised a bit by prop selection. They a re working on a turbo version that should give 503 level performance. Jimmy indicated that Valley bolted the engine directly to the engine mount without vibration dampers. I told Larry and Jimmy that I didn't think that was a good idea. I was told by someone else that Valley gets the weight dow n on the genrac by cutting most of the fly wheel off. I have not confirmed it. Rick Neilsen Redrive VW powered MKIIIC ----- Original Message ----- From: Mike Welch Sent: Thursday=2C February 18=2C 2010 9:06 AM Subject: RE: Kolb-List: Re: Valley Engineering Big-Twin - Any one flying wi th one? > Jimmy=2C correct me if my memory is wrong. > > -------- > Thom Riddle > Buffalo=2C NY > Kolb Slingshot SS-021 > Jabiru 2200A #1574 > Tennessee Prop 64x32 Thom=2C I'm not Jimmy=2C although I have done that to a few locks. If I'm not m istaken=2C Jimmy had the Generac motor=2C with the Valley Engineering Redrive. THAT engine wasn 't enough for his plane. No one=2C to my knowledge (vast as it is) on the Kolb list=2C uses the "B ig Twin"=2C which is a VW engine cut down from 4 cylinders to just 2. Correct me if I'm wrong=2C Jimmie. Mike Welch MkIII CX snow-belt Missouri Hotmail: Trusted email with Microsoft=92s powerful SPAM protection. Sign up now. href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics. com/Navigator?Kolb-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft.


    Message 15


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    Time: 08:45:41 AM PST US
    Subject: Re: Two Stroke Rotax
    From: "lucien" <lstavenhagen@hotmail.com>
    NeilsenRM(at)comcast.net wrote: > Ellery/Lucian > > When you guys take off on a whole new thread it would be best to change the subject line. > > Also just looked at Rotax 503 engine/redrive prices they are in the $6-7 thousand range depending on options and the 912 is closer to $20,000. Wow. We really need a Rotax alternative. > > Do not archive > > Rick Neilsen > Redrive VW Powered MKIIIC > Ah yes, you're right. wilco on that in future..... Yes, the 503 is beginning to approach being impractical in terms of cost, but is still a good deal especially with the B box, compared to the competitors. The 582, IMO, is no longer cost effective. too close to the good competitors like the HKS which seems to have lower long-term costs. The 912 was borderline, IMO, until they raised the TBO which put it back in the (upper end of) the good deal range. Yes we desperately need good competitors, especially to the 912 in the 80-100HP range...... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286956#286956


    Message 16


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    Time: 08:47:35 AM PST US
    From: daniel myers <h20maule@hotmail.com>
    Subject: Two Stroke Rotax
    You just missed out...I sold a 200hr 912UL for $7k last night. HOnda and Su baru are TRYING to come up with alternative =3B-) Daniel Recently sold FSII amphib From: NeilsenRM@comcast.net Subject: Kolb-List: Two Stroke Rotax Ellery/Lucian When you guys take off on a whole new thread it would be best to change the subject line. Also just looked at Rotax 503 engine/redrive prices they are in the $6-7 th ousand range depending on options and the 912 is closer to $20=2C000. Wow. We really need a Rotax alternative. Do not archive Rick Neilsen Redrive VW Powered MKIIIC ----- Original Message ----- From: Ellery Batchelder Jr Sent: Thursday=2C February 18=2C 2010 8:35 AM Subject: Re: Kolb-List: Valley Engineering Big-Twin - Any one flying with o ne? I put over 900 Hours on a 447 Rotax single ignition in my old firestar with out a problem nice little engine in my book easy on fuel plenty of power f or a heavy firestar I thought=2Cand I could out climb any thing at any airp ort and I could stay with a bunch of friends GA planes and go bye a few of them with it. the 503 another good engine plenty of power some people really think th ey need it because it has dual ignition compared to the 447 I have flown w ith the 503 a lot less hours but plenty of friends have them that I fly wit h and I can only say they have had ignition problems more than I have on mu ch newer engines just my experience Ellery Batchelder Jr. -----Original Message----- From: jerb <ulflyer@verizon.net> Sent: Thu=2C Feb 18=2C 2010 1:02 am Subject: Kolb-List: Valley Engineering Big-Twin - Any one flying with one? Hi folks=2C I posted this some time back=2C didn't get much response. Some time has pas sed and other folks may now had one and other that do have had some time to form an opinion regarding the engine. So for those that have or are now flying with this engine=2C how about a li ttle report on how you feel about the engine=2C it's power output=2C compar ison to typical Rotax's like the 447 or 503=2C and reliability. Thanks=2C jerb =========== et=_blank>http://www.matronics.com/Navigator?Kolb-List =========== ://forums.matronics.com =========== lank>http://www.matronics.com/contribution =========== href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics. com/Navigator?Kolb-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection.


    Message 17


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    Time: 08:51:35 AM PST US
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one?
    From: Robert Laird <rlaird@cavediver.com>
    On Thu, Feb 18, 2010 at 10:15 AM, Mike Welch <mdnanwelch7@hotmail.com>wrote: > Rick N, > > Oops, I misspoke about the "Big Twin". It isn't the half-VW I said it > was. It is the Generac V-twin. (I said my knowledge was vast, I didn't > say it was accurate!!) > So, are you saying that you are vastly inaccurate? ;-) > > IMO, if you require a turbo on a Generac just to make it worthwhile to > power a plane, you're much better with off with a 503!! For the Generac > to be a successful airplane engine, there needs to be a hellava lot > more engineering and development on it. > Jimmy is apparently out earning his dollars for the day, so, speaking as someone who has flown his plane, and seen the Generac installation (and the 503 he had, before it, and the HKS he now has), I can say this (and I'm Jimmy will correct me if I state anything wrong): His plane flew fine with the 503, just as scores of FSII owners know. He was looking for 4-stroke reliability and decided to try the Generac, and spent a lot of resources making sure it was done right. He also swapped out props as directed by the Valley Engineering people. Final result was, it was essentially underpowered, compared to the 503. Now, if he flew out of the 3000 ft asphalt-runway, and never landed at anything shorter or rougher, he probably would have stayed with it. But he flies out of a fairly rough turf runway that is very short, so he needs a good bit of power to consistently get in and out of there safely. The Generac was mounted flat on the mount, but it was remarkably smooth. But, even being a smooth engine doesn't mean he didn't need the Lord mounts. The rough field translated to the mount and the engine with detrimental effects. With the HKS, he is now a very happy (if poorer) aviator. -- Robert


    Message 18


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    Time: 08:57:47 AM PST US
    Subject: Re: Two Stroke Rotax
    From: "lucien" <lstavenhagen@hotmail.com>
    h20maule(at)hotmail.com wrote: > You just missed out...I sold a 200hr 912UL for $7k last night. HOnda and Subaru are TRYING tocome up with alternative ;-) > Eggenfelner is working on a conversion using a Honda engine - don't know if that's the same one? They've been pretty successful with the Subaru, so maybe they can make the Honda work. My guess is it's still a good ways off tho.... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=286963#286963


    Message 19


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    Time: 09:51:11 AM PST US
    From: Mike Welch <mdnanwelch7@hotmail.com>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one? >So=2C are you saying that you are vastly inaccurate? =3B-) > Robert Robert=2C That=2C or inaccurately vast. I try to mix a little humor in=2C once in awhile. Otherwise=2C the Kolb guys might revert to being as boring as an 8th term politician. Mike Welch MkIII builder & stand up comic _________________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.


    Message 20


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    Time: 10:33:36 AM PST US
    From: Herb <herbgh@nctc.com>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one? Mike, all The biggest application for the V twins is currently on Trikes... It appears to be a good engine for certain applications...Herb At 10:15 AM 2/18/2010, you wrote: >Rick N, > > Oops, I misspoke about the "Big Twin". It isn't the half-VW I > said it was. It is the Generac V-twin. (I said my knowledge was > vast, I didn't say it was accurate!!) > > Yes, I know they were planning on putting a turbo on the Generac, > I saw it. When I drove down to meet the folks at Valley > Engineering last summer, they gave me the "dime tour". The whole > operation is a family affair, and all of them working there are related. >(nice people, BTW) > > The Generac motor with the turbo is a very basic > installation. Basically, they just bolted a small turbo on the > motor, period! I don't believe they are going to deal with the > fuel/air ratio change, or any other turbo-installation > issues. Larry (@ Valley Enr'g) and I talked about this. > I'm not too sure how successful the basic turbo installation will > be. I think that's why it hasn't gone too far. > > IMO, if you require a turbo on a Generac just to make it > worthwhile to power a plane, you're much better with off with a > 503!! For the Generac to be a successful airplane engine, there > needs to be a hellava lot more engineering and development on it. > > >Mike Welch > >---------- >From: NeilsenRM@comcast.net >To: kolb-list@matronics.com >Subject: Re: Kolb-List: Re: Valley Engineering Big-Twin - Any one >flying with one? >Date: Thu, 18 Feb 2010 10:41:43 -0500 > >Mike/All > >The valley Big Twin is the Generac. I talked in depth with Larry >Smith at Valley last summer at Oshkosh about Jimmy's big twin >installation. Larry indicated that his performance was compromised a >bit by prop selection. They are working on a turbo version that >should give 503 level performance. > >Jimmy indicated that Valley bolted the engine directly to the engine >mount without vibration dampers. I told Larry and Jimmy that I >didn't think that was a good idea. I was told by someone else that >Valley gets the weight down on the genrac by cutting most of the fly >wheel off. I have not confirmed it. > >Rick Neilsen >Redrive VW powered MKIIIC >----- Original Message ----- >From: <mailto:mdnanwelch7@hotmail.com>Mike Welch >To: <mailto:kolb-list@matronics.com>kolb-list@matronics.com >Sent: Thursday, February 18, 2010 9:06 AM >Subject: RE: Kolb-List: Re: Valley Engineering Big-Twin - Any one >flying with one? > > > Jimmy, correct me if my memory is wrong. > > > > -------- > > Thom Riddle > > Buffalo, NY > > Kolb Slingshot SS-021 > > Jabiru 2200A #1574 > > Tennessee Prop 64x32 > > >Thom, > > I'm not Jimmy, although I have done that to a few locks. If I'm > not mistaken, Jimmy had >the Generac motor, with the Valley Engineering Redrive. THAT engine >wasn't enough for his plane. > > No one, to my knowledge (vast as it is) on the Kolb list, uses > the "Big Twin", which is a VW engine cut down from 4 cylinders to just 2. > > Correct me if I'm wrong, Jimmie. > >Mike Welch >MkIII CX >snow-belt Missouri > > >---------- >Hotmail: Trusted email with Microsoft's powerful SPAM protection. >Sign up now. > > >href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics.com/Navigator?Kolb-List > >href="http://forums.matronics.com">http://forums.matronics.com > >href="http://www.matronics.com/contribution">http://www.matronics.com/c > > >ttp://www.matronics.com/Navigator?Kolb-List >ronics.com >ww.matronics.com/contribution > > >---------- >Hotmail: Powerful Free email with ect/01/' target='_new'>Get it now.


    Message 21


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    Time: 11:04:16 AM PST US
    From: Mike Welch <mdnanwelch7@hotmail.com>
    Subject: Re: Valley Engineering Big-Twin - Any one flying with
    one? Herb=2C I think the biggest application of the Generac is as a generator. But=2C that aside=2C you're probably correct regarding their use in aircraft. You know what would be nice???? A spreadsheet that list ALL engines in a certain power range....say 40-55 HP. Rotaxes=2C Generacs=2C half VW=2C V ictor=2C Cuyuna=2C Victor=2C etc.=2C etc. etc. All of 'em!! Then=2C try to list their atributes=2C like TBO=2C cost per hour=2C maint enence interval=2C GPH=2C rebuild costs=2C number of hours of proven use=2C etc. This would be a big list=2C but it would make for interesting reading. Y ou could also cover different engines in the 60-80 HP range=2C and finally =2C the 80-100 HP range. Mike Welch From: herbgh@nctc.com Subject: RE: Kolb-List: Re: Valley Engineering Big-Twin - Any one flying wi th one? Mike=2C all The biggest application for the V twins is currently on Trikes... It app ears to be a good engine for certain applications...Herb At 10:15 AM 2/18/2010=2C you wrote: Rick N=2C Oops=2C I misspoke about the "Big Twin". It isn't the half-VW I said it was. It is the Generac V-twin. (I said my knowledge was vast=2C I didn't say it was accurate!!) Yes=2C I know they were planning on putting a turbo on the Generac=2C I s aw it. When I drove down to meet the folks at Valley Engineering last sum mer=2C they gave me the "dime tour". The whole operation is a family affai r=2C and all of them working there are related. (nice people=2C BTW) The Generac motor with the turbo is a very basic installation. Basically =2C they just bolted a small turbo on the motor=2C period! I don't believ e they are going to deal with the fuel/air ratio change=2C or any other tur bo-installation issues. Larry (@ Valley Enr'g) and I talked about this. I'm not too sure how successful the basic turbo installation will be. I think that's why it hasn't gone too far. IMO=2C if you require a turbo on a Generac just to make it worthwhile to power a plane=2C you're much better with off with a 503!! For the Genera c to be a successful airplane engine=2C there needs to be a hellava lot mor e engineering and development on it. Mike Welch From: NeilsenRM@comcast.net Subject: Re: Kolb-List: Re: Valley Engineering Big-Twin - Any one flying wi th one? Mike/All The valley Big Twin is the Generac. I talked in depth with Larry Smith at V alley last summer at Oshkosh about Jimmy's big twin installation. Larry ind icated that his performance was compromised a bit by prop selection. They a re working on a turbo version that should give 503 level performance. Jimmy indicated that Valley bolted the engine directly to the engine mount without vibration dampers. I told Larry and Jimmy that I didn't think that was a good idea. I was told by someone else that Valley gets the weight dow n on the genrac by cutting most of the fly wheel off. I have not confirmed it. Rick Neilsen Redrive VW powered MKIIIC ----- Original Message ----- From: Mike Welch Sent: Thursday=2C February 18=2C 2010 9:06 AM Subject: RE: Kolb-List: Re: Valley Engineering Big-Twin - Any one flying wi th one? > Jimmy=2C correct me if my memory is wrong. > > -------- > Thom Riddle > Buffalo=2C NY > Kolb Slingshot SS-021 > Jabiru 2200A #1574 > Tennessee Prop 64x32 Thom=2C I'm not Jimmy=2C although I have done that to a few locks. If I'm not m istaken=2C Jimmy had the Generac motor=2C with the Valley Engineering Redrive. THAT engine wasn 't enough for his plane. No one=2C to my knowledge (vast as it is) on the Kolb list=2C uses the "B ig Twin"=2C which is a VW engine cut down from 4 cylinders to just 2. Correct me if I'm wrong=2C Jimmie. Mike Welch MkIII CX snow-belt Missouri Hotmail: Trusted email with Microsoft=92s powerful SPAM protection. Sign up now. href=" http://www.matronics.com/Navigator?Kolb-List ">http://www.matronics.com/Navigator?Kolb-List href=" http://forums.matronics.com">http://forums.matronics.com href=" http://www.matronics.com/contribution ">http://www.matronics.com/c ttp://www.matronics.com/Navigator?Kolb-List ronics.com ww.matronics.com/contribution Hotmail: Powerful Free email with ect/01/' target='_new'>Get it now. _________________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.


    Message 22


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    Time: 11:52:22 AM PST US
    Subject: Re: Valley Engineering Big-Twin - Any one flying with one?
    From: "Jimmy Young" <jdy100@comcast.net>
    List, I did a few in-detail posts of my experience with the Valley-Generac Twin V, they should all be in the archives. To clarify a few comments made today, 1) Valley Engineering does not cut down the flywheel in any way on their version. 2) They (Valley Eng.) do suggest to mount the engine direct to the airframe. My opinion is, not a good idea. Even though it's a fairly smooth engine, it's not smooth enough to do that, at least it wasn't for me. 3) I tried 4 different props. A 3-blade 72" IVO, 2 blade Culver 76" 39 degree pitch, a 2-blade 76" Culver 41 degree, and a 2-blade 78" Culver, either 41 or 39 degree, can't remember. There were subtle differences between each, nothing substantial. I got a little better cruise speed with the 76" 39 degree over all the others, but cruise speed was not the problem I was trying to overcome, it was lack of adequate climb rate, and none of them solved that. 4) Yes, today I am broke, own an HKS, and am very happy with it. I also had a bit of a rum-rum harmonic issue going on as well with the Twin V, and Larry Smith at Valley told me they had that problem solved with a different redrive ratio. Also, the last time I spoke with Larry they were trying out a different cam grind to get more power out of the Twin V, and at that time they had given up on the turbo ideas. They are very good folks at Valley Eng., even took my engine back at a fair discount. They worked hard with me to try and make the engine perform to my satisfaction. Bottom line was, the Twin-V was not enough power for my application. -------- Jimmy Young Missouri City, TX Kolb FS II/HKS 700 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=287004#287004




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