---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Mon 09/19/16: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:28 AM - Re: HKS Engine Installation (Patrick Ladd) 2. 06:59 AM - Re: HKS Engine Installation (Rick Neilsen) 3. 08:50 AM - Re: Re: HKS Engine Installation (Richard Girard) ________________________________ Message 1 _____________________________________ Time: 02:28:38 AM PST US From: Patrick Ladd Subject: Re: Kolb-List: HKS Engine Installation thrust line being too high will cause problems with performance and handlin g >> No it doesn`t. This is always a criticism levelled at planes with a higher than usual thrust line. In practice it makes no difference that your normal flying instincts can`t cope with automatically. If you are pushing your sp eed envelope from high to low, say when you switch from cruise to landing a pproach speed you may have to re trim but so what, you will have to retrim as the flaps come down anyway. Good luck. Pat ________________________________ From: owner-kolb-list-server@matronics.com on behalf of Bill Berle Sent: 18 September 2016 18:47:49 Subject: Re: Kolb-List: HKS Engine Installation Thank you Larry, I will try that before I start making any changes or modif ications or work-arounds. I was indeed trying to keep the engine as low as possible, with the "gearbox low" engine configuration. It was already obvious to this old washed up model airplane builder that th e thrust line being too high will cause problems with performance and handl ing ! But it is good to hear that my own instinct matched the actual real-w orld experience of Kolb flyers. I tried to look up anything in the archives that addressed this problem, an d it seems thata a David Bigelow in hawaii had this same concern on his Fir estar. Bill Berle www.ezflaphandle.com - safety & performance u pgrade for light aircraft www.grantstar.net - winning proposals f or non-profit and for-profit entities -------------------------------------------- On Sun, 9/18/16, Larry Cottrell wrote: Subject: Re: Kolb-List: HKS Engine Installation To: "kolb-list@matronics.com" Date: Sunday, September 18, 2016, 5:42 AM Mine will clear using the same mounting as for a 503. You just have to hold the ailerons at a certain attitude when you fold, and that is only on the right side. There are different exhaust configurations available, none that I felt moved to explore. You would not like mounting the engine higher than absolutely necessary. Larry ________________________________ Message 2 _____________________________________ Time: 06:59:52 AM PST US From: Rick Neilsen Subject: Re: Kolb-List: HKS Engine Installation Pat/All One of my early reduction drive VW configurations I had a rather high thrust line. Flying solo I had to feed in power slowly so that I wouldn't nose over. The first time I flew with a passenger I found I had to reduce power to keep the thrust from overpowering my elevator on takeoff. With a passenger at low air speeds with full power and full up elevator it would not pitch up. At higher speeds it was just OK. I never.... attempted a go around with a passenger. Actually I never flew with a passenger again in that configuration. I switched fairly quick to the new VW engine mount that significantly lowered the engine. In this case the high trust line was down right dangerous. Rick Neilsen 1st Redrive VW powered MKIIIC On Mon, Sep 19, 2016 at 5:28 AM, Patrick Ladd wrote: > thrust line being too high will cause problems with performance and > handling >> > > > No it doesn`t. This is always a criticism levelled at planes with a higher > than usual thrust line. In practice it makes no difference that your normal > flying instincts can`t cope with automatically. If you are pushing your > speed envelope from high to low, say when you switch from cruise to landing > approach speed you may have to re trim but so what, you will have to retrim > as the flaps come down anyway. Good luck. Pat > > ________________________________ Message 3 _____________________________________ Time: 08:50:58 AM PST US From: Richard Girard Subject: Re: Kolb-List: Re: HKS Engine Installation Richard, The story, as I remember Travis telling it anyway, is that the last owner before it reached me had the guys in the Kolb shop mount the 582 on stilts for just the reason you ascribed to it. They didn't want to do it but the owner seemed, by the way he did everything else, to have no clue about what such would do to the prop inflow and overall drag. I never flew it that way. I moved the engine backward to clear the starter, changed the Rotax twin radiators to a single one from a Honda Magnum motorcycle, and dumped the intake silencer. Rick Rick On Sun, Sep 18, 2016 at 2:52 PM, Richard Pike wrote: > > > Not to hijack the thread - but why is that 582 in Rick's picture mounted > up so high? To clear the starter? > > -------- > Richard Pike > Kolb MKIII N420P (420ldPoops) > Kingsport, TN 3TN0 > > Would you consider yourself to be a good person? > https://www.youtube.com/watch?v=VWcDXT6pH7A > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=460575#460575 > > =========== =========== =========== =========== =========== > > -- =9CBlessed are the cracked, for they shall let in the light.=9D Groucho Marx ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-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/kolb-list Browse Digests http://www.matronics.com/digest/kolb-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.