Kolb-List Digest Archive

Tue 12/05/06


Total Messages Posted: 21



Today's Message Index:
----------------------
 
     1. 04:52 AM - Re: Re: cooling (Jack B. Hart)
     2. 04:58 AM - Re: Registering ultralights (pat ladd)
     3. 06:45 AM - Re: Dual Elevator Cables (pat ladd)
     4. 07:12 AM - Re: Massey Aero 6th Annual Open Hangar Day (Terry)
     5. 07:39 AM - Re: Registering ultralights (Dana Hague)
     6. 11:24 AM - Rules for Homebuilts  (Kirby Dennis Contr MDA/AL)
     7. 11:52 AM - Re: carburetor ice question (mike moulai)
     8. 12:37 PM - Re: carburetor ice question (pat ladd)
     9. 01:30 PM - Ultrastar Info. (Rob Ikola)
    10. 01:30 PM - Ultrastar Information (Rob Ikola)
    11. 02:12 PM - Re: Ultrastar Information (John Hauck)
    12. 02:24 PM - Re: Ultrastar Info. (John Hauck)
    13. 03:16 PM - Re: Ultrastar Info. (Rob Ikola)
    14. 03:53 PM - Re: Rules for Homebuilts (Roger Lee)
    15. 04:41 PM - Fw: Flying a Copter & Hangar Update... (Mike Schnabel)
    16. 05:06 PM - 912 question ()
    17. 05:42 PM - Re: 912 question (John Williamson)
    18. 05:57 PM - Re: 912 question (John Hauck)
    19. 06:00 PM - Fw: Re: Registering ultralights (possums)
    20. 06:53 PM - Re: Ultrastar Information (ron wehba)
    21. 06:53 PM - Re: Fw: Flying a Copter & Hangar Update.. (Robert Laird)
 
 
 


Message 1


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    Time: 04:52:24 AM PST US
    From: "Jack B. Hart" <jbhart@onlyinternet.net>
    Subject: Re: cooling
    > > Would you get the same results with a water pump rapidly circulating >the water? John, In most cases yes because the water next to the hot aluminum surface is not moving. Water has the same flow properties as air flowing over an airfoil, in that the water next to the surface is not moving and then due to shearing action the velocity picks up as the distance from the surface increases and finally goes turbulent. One must remember that there are hot spots in the system. Most likely they will be found next to the exhaust ports. ---------------------------------------------------------------------- >You're talking about nucleation which is pressure dependent. As >an example, at the recommended 1.2 Bar pressure of a closed >Rotax cooling system (1.18 atm, or 900 mm/Hg) the boiling >point of pure water is raised to 104.75C, 220.46F, clearly not the >212F you cite in the open pan. Add ethylene glycol at 50/50 and >the temp goes up even further, my calcs show about 231F at 1.2 >Bar. There is some evidence, however, that small bubbles may >promote heat transfer but most of that work was done under >microgravity conditions and not 1g conditions. Jim, You are correct that boiling temperature increases with pressure. If one could pressurize the pan, you would see the same effect of bubbles forming on the bottom of the pan. The pan surface temperature would be higher than 212 degrees F. Yes, steam bubbles will help promote heat transfer with in a pool of water such as in a pan. But at the hot metal surface with the water the heat transfer rate decreases due to the combination of water and steam. This is why the water is circulated. The moving water helps to shear off the steam bubbles and to make room for more bubbles to form. I use a coolant temperature gage, but a coolant pressure gage is a much better indicator of what is going on at the head and cylinder aluminum and water interface. The aluminum surface temperature will always be much higher than the coolant temperature. Jack B. Hart FF004 Winchester, IN


    Message 2


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    Time: 04:58:25 AM PST US
    From: "pat ladd" <pj.ladd@btinternet.com>
    Subject: Re: Registering ultralights
    Under 254 lbs, 1 seat, less than 5 gal fuel capacity, under 55kts top > speed, less than 24 kts stall speed can qualify as a Part 103 Ultralite & > there is no registration, training, reporting, maintenance/inspection > schedule etc required.>> Hi Richard, thanks for that. About the only thing we have flying here which would fit those parameters is a foot launched paramotor. It will be very interesting to see what comes out of our `deregulation` talks. We have always used MAUW as one of the limiting factors. This has meant that a plane does not get built to an absolutely minimum spec and then get overloaded by a fat pilot and a load of camping gear or extra fuel cans. The limited stalling speed is supposed to stop the production of `lead sleds` which would be beyond the skill of a normal microlight pilot without special training, which I am sure you will agree is not the basic idea behind our sort of flying. Of course the old `low and slow` concept has gone by the board. The Eurostar in which I had a part share before the Kolb will easily make 100 mph, 2 up at 11 litre perhour. reasonablt luxurious cockpit, full panel, all metal, and a 912 up front and there are others around hotter than that. All still conforming to the `microlight` rules. Some only by the weight of a coat of paint!!!> Of course the word `cheap` which went with `low and slow` has gone out of the window as well. Cheers Pat do not archive


    Message 3


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    Time: 06:45:18 AM PST US
    From: "pat ladd" <pj.ladd@btinternet.com>
    Subject: Re: Dual Elevator Cables
    the word 'Experimental' in big letters in the cockpit so any passenger is expected to know he's taking his life in his hands if he gets in the plane.>> Hi Charlie, we have a little piece of paper about twice as big as a postage stamp stuck up somewhere in the cockpit with a note that `this plane is not built to accepted aeronautical standards`. Serves the same purpose I suppose. The first line of defence if some some smart guy sues you. Cheers Pat


    Message 4


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    Time: 07:12:50 AM PST US
    From: Terry <tkrolfe@usadatanet.net>
    Subject: Re: Massey Aero 6th Annual Open Hangar Day
    WhiskeyVictor36@aol.com wrote: > Hi Terry (FireFly), > > Was glad to see that you and Wilmar were able to fly in to the event > on Sunday 12/03/06. Wish I had done so. Earlier in the week they > were predicting high winds, but fortunately that changed and the day > was really pretty good, although a little on the cold side. I saw > that you had dressed warmly, but with the short windshield, do you > still get cold? I cannot stand the cold anymore. Maybe age has > something to do with it. I do have a full coverage canopy, but had > removed the side/rear windows for the summer and because we've been > having a warm fall, I haven't installed them yet. But now I believe > winter is here, so next time I fly, they'll be on. Hope to see you > again at Homers, if that visit becomes a reality. > > Bill Varnes > Original Kolb FireStar > Audubon NJ > Do Not Archive Hey Bill, Good to see you again! Nice turn out at Massey even if things were a bit on the cold side. Was glad to get there after an hour long flight with cockpit temps of about 36 deg. Wilmer gets me to do things I might not otherwise. He is the senior flyer, most hours flown per year, in this part of the country! The sitting still for that long is what catches up with you. Have consider building a full enclosure several times, but then nixed it. I enjoy the open cockpit flying too much and it would be too much of a hassle for the couple of months I would need it and then having to take it off again. Of course a full enclosure would improve performance by lowering the drag. As I tell most that ask, I just wear what I do to go skiing. Flying still beats skiing!!!! Terry - FireFly #95 DO NOT ARCHIVE


    Message 5


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    Time: 07:39:14 AM PST US
    From: Dana Hague <d-m-hague@comcast.net>
    Subject: Re: Registering ultralights
    At 07:58 AM 12/5/2006, pat ladd wrote: >thanks for that. About the only thing we have flying here which would fit >those parameters is a foot launched paramotor. It will be very interesting >to see what comes out of our `deregulation` talks. Where are you? I know in Britian there is a "foot launched exemption" from registration requirements. It was the same here once, briefly, as ultralights grew out of powered hang gliders (the old Quicksilver I just sold was foot launchable to comply with the requirements, though I never attempted it). With the new Sport Pilot regs here it will also be interesting to see of the requirement to register "fat" ultralights leads to a resurgence of very light single seaters... this already seems to be happening in the PPC world. -Dana -- -- Sex in a Volkswagen = Farfergnookie.


    Message 6


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    Time: 11:24:35 AM PST US
    Subject: Rules for Homebuilts
    From: "Kirby Dennis Contr MDA/AL" <Dennis.Kirby@kirtland.af.mil>
    (Note - I changed the 'Subject' line.) Charlie England wrote: << Homebuilts ... The rules say no flight over densely populated areas 'except in the process of takeoff or landing' but these days this is largely political ... >> Kolb Friends - Charlie is correct: this is what used to be written in the FARs, regarding Experimental Amateur-Built aircraft. However, this single rule was vehemently contested by pilots, EAA, and others. So, about two years ago, the FAA relaxed the wording (and intent) of the rule that restricted our homebuilt aircraft from flying over populated areas. Now, we enjoy the same latitude as the "store-bought" aircraft. Our N-numbered Experimentals are allowed to fly over cites, provided we follow the FAR regulations that state we must fly at least 1000 feet above populated areas. Dennis Kirby Mark-III, 912ul, in Cedar Crest, NM


    Message 7


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    Time: 11:52:57 AM PST US
    From: "mike moulai" <kiwimick@sfmicro.fsnet.co.uk>
    Subject: Re: carburetor ice question
    Pat, you are correct, briskly opening the throttle will often break the ice away by the rapid increase of air flow. Incidentally I think I may have fell victum to ice yesterday while conducting a airworthiness test on a HKS powered X-Air. During climb out at approx 250' a sudden reduction in power caused me to make a forced landing into a very soft field resulting in a wrecked aircraft. I initially thought that it was fuel starvation, however a glance at the press guage showed it to be fine, no carb heater fitted to these engines and as they offer poor performance on a 2 seat aircraft anyway there is little room for loss of power at all. Mike ----- Original Message ----- From: pat ladd To: kolb-list@matronics.com Sent: Saturday, December 02, 2006 12:48 PM Subject: Re: Kolb-List: carburetor ice question engine quit when I throttled back to land. >> Hi, perhaps someone with more experience will kick in on this but I think that OPENING the throttle will often clear an ice blockage. Cheers Pat do not archive


    Message 8


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    Time: 12:37:15 PM PST US
    From: "pat ladd" <pj.ladd@btinternet.com>
    Subject: Re: carburetor ice question
    Pat, you are correct, briskly opening the throttle will often break the ice away >> Thank you Mike. Glad to have corroboration and thanks for the `always on` carb. heat fitted to my Xtra. Sorry to hear of the crunch. Hope you are OK. There was so much wind on the charts I thought everyone in the UK was grounded. Found your truck in the lorry park at the NEC without TOO much trouble and managed to load the new wing into my hired van which luckily had a small space above the drivers cab This enabled us to travel home with closed rear doors. It would have been very uncomfortable otherwise as we hit high winds and and pelting hail from the tail end of the front going through. Hope you had a succesful show and sold lots of Kolbs and Sonex. Mean looking beast. What did you think about the French rear prop driven tear drop just inside the entrance.? I thought Jim Bede had come to town. One guy looking at that thin high speed wing said `A Free funeral with every kit` I tended to agree with him. No one seemed to have any performance figures for it on the stand but it was nicely finished.. I have advised Mike that the exhaust will arrive direct from you. All the best Pat do not archive


    Message 9


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    Time: 01:30:12 PM PST US
    From: "Rob Ikola" <rob@fabform.com>
    Subject: Ultrastar Info.
    Looking for any owners or pilots of Ultrastar's. I want to be aware of all notices and fatalities on this model. What ever else I should know before flying, Rob Ikola rob@fabform.com


    Message 10


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    Time: 01:30:12 PM PST US
    From: "Rob Ikola" <rob@fabform.com>
    Subject: Ultrastar Information
    I am looking for anyone that owns or has owned an Ultrastar. I just bought one that was recently completed and I am looking for any reports or problems with this design. Also looking for info on handling and areas to watch as far as this plane is concerned. The plane has about 2 hours of test flight, and the local pilots that flew it have some knowledge, but looking for everything I can on this unit, as it is not my intention to die flying ultralights!! Thanks, Rob Ikola contact: rob@fabform.com


    Message 11


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    Time: 02:12:14 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: Ultrastar Information
    I am looking for anyone that owns or has owned an Ultrastar. but looking for everything I can on this unit, as it is not my intention to die flying ultralights!! Thanks, Rob Ikola contact: Rob I: Well.........don't think it is anyone's intention to die flying ultralights. ;-) Although we do once in a while. Before some of us with Ultrastar experience spill our guts out to you about our airplanes, how about telling us something about you. Where are you from, UL experience, intentions, etc??? Thanks and take care, john h


    Message 12


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    Time: 02:24:56 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: Ultrastar Info.
    Looking for any owners or pilots of Ultrastar's. I want to be aware of all notices and fatalities on this model. What ever else I should know before flying, Rob Ikola Rob I: Sorry, but there is no way for any of us to know of "all notices and fatalities" in the Ultrastar. For the record, there is no record of US accidents, to inlcude fatalites. You sure you want to fly this thing. ;-) Take care, john h mkIII hauck's holler, alabama PS: Almost forgot. Why not do a comprehensive search through the Kolb List Archives. If there is any mention of US and accidents, updates, fatalities, etc., should be in the archives. To get there, go to this url: http://www.matronics.com/search/


    Message 13


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    Time: 03:16:13 PM PST US
    From: "Rob Ikola" <rob@fabform.com>
    Subject: Re: Ultrastar Info.
    John, thanks for the info, share with me what you can, Rob ----- Original Message ----- From: "John Hauck" <jhauck@elmore.rr.com> Sent: Tuesday, December 05, 2006 2:24 PM Subject: Re: Kolb-List: Ultrastar Info. > > > Looking for any owners or pilots of Ultrastar's. I want to be aware > of all notices and fatalities on this model. What ever else I should > know before flying, Rob Ikola > > Rob I: > > Sorry, but there is no way for any of us to know of "all notices and > fatalities" in the Ultrastar. > > For the record, there is no record of US accidents, to inlcude > fatalites. > > You sure you want to fly this thing. ;-) > > Take care, > > john h > mkIII > hauck's holler, alabama > > PS: Almost forgot. Why not do a comprehensive search through the > Kolb List Archives. If there is any mention of US and accidents, > updates, fatalities, etc., should be in the archives. To get there, > go to this url: > > http://www.matronics.com/search/ > > > > > >


    Message 14


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    Time: 03:53:38 PM PST US
    Subject: Re: Rules for Homebuilts
    From: "Roger Lee" <ssadiver1@yahoo.com>
    Hi Guys, If your original operating limitations state that you can not fly over a densly populated area then you can not. The rule for LSA was changed in July 2006. You need to have another set of operating limitations issued for your "N" numbered aircraft. I just had mine done. My Kolb had a complete re-issue of my operating limitations to say it was ok to fly over densly populated areas. Your aircraft logbook also needs to be signed off. -------- Roger Lee Tucson, Az. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=79437#79437


    Message 15


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    Time: 04:41:09 PM PST US
    From: Mike Schnabel <tnfirestar2@yahoo.com>
    Subject: Fwd: Flying a Copter & Hangar Update...
    Good evening groups (Kolbers and MTUG), hope all are fairing well through the winter storms that have been crossing the country. Two things to share this evening... I hate passing along odd boring emails, but thought this link was kinda fun even for a goofy game, wonder what the REAL copter pilots think...? (John ?) Click on the link if you care to see... And the picture attached is my Kolb hangar progress to date. New home for the Firestar II, (so that makes this Kolb related, right?) Anyway, all the arches are up and bolted tight. Just in time for the recent 45 MPH winds we had come through, did not budge an inch, despite not having the concrete grout work finished yet... whew. Back wall nearly completed this past weekend. Taking next weekend off for a visit with friends, but come Christmas week, hope to continue construction. BTW, anyone looking for an affordable, spacious, easy to build and STRONG building needs to check these out! They are awesome! I Hope everyone is having as nice a holiday season as possible, said knowing full well our aviation family has had some recent losses... My heart goes out to the family and friends..., and even us all that were not as close personally, but still feel the loss. It is one of the ways our sport brings distant souls together. Mike S Manchester TN Firestar 2 503 do not archive Note: forwarded message attached. --------------------------------- X-Apparently-To: tnfirestar2@yahoo.com via 66.163.179.95; Tue, 05 Dec 2006 16:10:03 -0800 X-Originating-IP: [66.163.179.101] Authentication-Results: mta236.mail.re4.yahoo.com from=yahoo.com; domainkeys=fail (bad sig) Received: from 66.163.179.101 (HELO web35307.mail.mud.yahoo.com) (66.163.179.101) by mta236.mail.re4.yahoo.com with SMTP; Tue, 05 Dec 2006 16:10:03 -0800 Received: (qmail 31399 invoked by uid 60001); 6 Dec 2006 00:10:02 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=Y6Be+HMVN7l2fHQ2RgCmhHtTrAM1EFYNJTAzfQnMm+zbqGKKyITJVCi7Lz7rixV8HXNvyxD6eUAoqPcrXTFEw+QZM+gyYPj1xU3eziITddMyWmeOj3FvB3l3Xa7fu0WC0A5Dos0XcJ1TrjWxI5x10VURBGNYswqf7wkOKf1vlMs=; X-YMail-OSG: du4GaeAVM1lSZv90hnfNQZy9lSzHkdlcCso0oPpi1TwAH0DG805mE.lQa7PAszklCJoK.wJLGjayJuNN6V3TTveQeR8EiR9GOrbwJtSSzJz1rWDHgWAXgdArnvpKgoj3JDa_yup1jDk- Received: from [24.183.223.25] by web35307.mail.mud.yahoo.com via HTTP; Tue, 05 Dec 2006 16:10:00 PST From: Mike Schnabel <tnfirestar2@yahoo.com> Subject: Flying a Copter MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-676742042-1165363800=:31169" Content-Transfer-Encoding: 8bit --0-676742042-1165363800=:31169 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit http://www.hurtwood.demon.co.uk/Fun/copter.swf --------------------------------- --0-676742042-1165363800=:31169 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit <div>&nbsp;</div> <div>&nbsp;</div> <div>&nbsp;</div> <div><A title=http://www.hurtwood.demon.co.uk/Fun/copter.swf href="http://www.hurtwood.demon.co.uk/Fun/copter.swf" target=_blank rel=nofollow><FONT face=Verdana>http://www.hurtwood.demon.co.uk/Fun/copter.swf</FONT></A></div><p>&#32; --0-676742042-1165363800=:31169--


    Message 16


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    Time: 05:06:38 PM PST US
    From: <kfackler@ameritech.net>
    Subject: 912 question
    This question is about the behavior of the Rotax 912 ULS. This is the engine that it's in the plane in which I took my checkride, not my Kolb. I also have rented it some since then. I realize that every engine design is unique but I've never seen any engine do this. When you kill the mags to turn off the engine, it STOPS, thunk. No wind-down at all. It's actually quite startling. The CFI with whom I trained said it was perfectly natural for that engine. How say you all? Does this sound like normal behavior? -Ken Fackler Kolb Mark II / A722KWF Rochester MI


    Message 17


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    Time: 05:42:54 PM PST US
    Subject: Re: 912 question
    From: "John Williamson" <kolbrapilot1@comcast.net>
    Ken and All, It is normal for the 912 ULS stop turning immediately. It is also normal to hear a small squeak at shutdown if it has the slipper clutch installed. -------- John Williamson Arlington, TX Kolbra, 912ULS http://home.comcast.net/~kolbrapilot1 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=79462#79462


    Message 18


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    Time: 05:57:15 PM PST US
    From: "John Hauck" <jhauck@elmore.rr.com>
    Subject: Re: 912 question
    Hi Ken: I'll echo what John W said. When you shut down a 912ULS, it stops, right now. It has 10.5 to 1 compression ration running through a 2.43 to 1 gear box. Sorta reminds me of shutting down my Dodge Cummins. The Cummins B6 has 16 or 17 to 1 compression ratio. On shut down it shakes hell outta the whole truck. Take care and stay warm, john h


    Message 19


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    Time: 06:00:36 PM PST US
    From: possums <possums@bellsouth.net>
    Subject: Re: Registering ultralights
    >Date: Tue, 05 Dec 2006 19:52:03 -0500 >To: kolb-list@matronics.com >From: possums <possums@bellsouth.net> >Subject: Re: Kolb-List: Registering ultralights > >At 07:58 AM 12/5/2006, you wrote: >> >> >>Hi Richard, >> >>thanks for that. About the only thing we have flying here which >>would fit those parameters is a foot launched paramotor. It will be >>very interesting to see what comes out of our `deregulation` talks. > >See what came from our `deregulation` talks - "foot launched >paramotorhangliders" >evolved into what we generally refer to as "Ultralights". It will >never happen again in a >million years.....if the FAA could have seen it coming. Most of us >here have been illegal >for the last 20 years - I know I have. >Like the "Cowboys" of the old west, just a "one time thing". >I think they're just trying to round up the mustangs here for the last time. > >Glad I was there while it lasted. >My grand kids will say "You used to do what!!!"


    Message 20


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    Time: 06:53:24 PM PST US
    From: "ron wehba" <rwehba@cebridge.net>
    Subject: Re: Ultrastar Information
    rob mail me direct at rwehba@cebridge.net and i'll tell ya about my old one. ----- Original Message ----- From: Rob Ikola To: kolb-list@matronics.com Sent: Thursday, January 04, 2007 2:50 PM Subject: Kolb-List: Ultrastar Information I am looking for anyone that owns or has owned an Ultrastar. I just bought one that was recently completed and I am looking for any reports or problems with this design. Also looking for info on handling and areas to watch as far as this plane is concerned. The plane has about 2 hours of test flight, and the local pilots that flew it have some knowledge, but looking for everything I can on this unit, as it is not my intention to die flying ultralights!! Thanks, Rob Ikola contact: rob@fabform.com


    Message 21


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    Time: 06:53:41 PM PST US
    From: "Robert Laird" <rlaird@cavediver.com>
    Subject: Re: Fwd: Flying a Copter & Hangar Update..
    I think I missed it when you told who the manufacturer was, the size and the price you paid.... it would be appreciated! -- Robert On 12/5/06, Mike Schnabel <tnfirestar2@yahoo.com> wrote: > > Good evening groups (Kolbers and MTUG), hope all are fairing well through > the winter storms that have been crossing the country. > > Two things to share this evening... > > I hate passing along odd boring emails, but thought this link was kinda > fun even for a goofy game, wonder what the REAL copter pilots think...? > (John ?) > > Click on the link if you care to see... > > And the picture attached is my Kolb hangar progress to date. New home for > the Firestar II, (so that makes this Kolb related, right?) > > Anyway, all the arches are up and bolted tight. Just in time for the > recent 45 MPH winds we had come through, did not budge an inch, despite not > having the concrete grout work finished yet... whew. Back wall nearly > completed this past weekend. Taking next weekend off for a visit with > friends, but come Christmas week, hope to continue construction. BTW, anyone > looking for an affordable, spacious, easy to build and STRONG building needs > to check these out! They are awesome! > > I Hope everyone is having as nice a holiday season as possible, said > knowing full well our aviation family has had some recent losses... My heart > goes out to the family and friends..., and even us all that were not as > close personally, but still feel the loss. It is one of the ways our sport > brings distant souls together. > > Mike S > Manchester TN > Firestar 2 503 > > do not archive > > Note: forwarded message attached. > > > ---------- Forwarded message ---------- > From: Mike Schnabel <tnfirestar2@yahoo.com> > To: tnfirestar2@yahoo.com > Date: Tue, 5 Dec 2006 16:10:00 -0800 (PST) > Subject: Flying a Copter > > > http://www.hurtwood.demon.co.uk/Fun/copter.swf > >




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