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>> On Oct 14, 2019, at 2:44 AM, Stef den Boer via KRnet <krnet@list.krnet.org> >> wrote: > > Hi Sammer, > My lessons I have learnd is ...if you have limited space. (I have seen by an > other builder) > Make a jig (from your boat) for your for your centersection so you can build > the wings without the boat. This saves you a lot of space and easy to walk > around. You can easely turn the hole section up side down. Install you flight > controlls...drill your gear....make the seat. ect ect. At this way you have a > much better acces. When that all is finished glue the center section in > position in the boat. > > I think you better use 100 HP engine. > Good luck. > > Stef. > > http://www.masttotaalconcept.nl/kr2 > > > >> Op 14 oktober 2019 om 7:39 schreef Samuel Spanovich via KRnet >> <krnet@list.krnet.org>: >> >> >> I've decided it is time to start looking into building my very own KR2S, or >> at the very least, start the planning stage. I understand this process is >> going to take a hefty chunk of my life, however even at my relatively young >> age, I am certainly not getting any younger. >> >> I have read a fair amount of material on the KR2S (most notably Mark L's >> "Opinions" and many other builder blogs), and have also scoured hundreds of >> hours of material on the KRnet archive. Nonetheless, I am curious to hear >> from the builders on here how much planning went into your airplane before >> you actually started construction? Also, what were some of your biggest >> challenges (both building, and the tolls it took on your personal life), >> and finally, some lessons learned and things you would do differently if >> you could do it again? >> >> I own a plans built KR2S (N6399U) which I feel was exceptionally built, and >> will be using as a baseline/reference for my own project. Below is a >> summary of what I am envisioning. Please feel free to comment on this >> setup and offer your opinions as well. >> >> Tri-Gear (personal preference) >> Dual control sticks >> AS5048/45 airfoil (stronger spars, more wing tank volume) >> Cockpit Width - Stretched 40" (assuming no serious structural/aerodynamic >> ramifications) >> Speed Brake (belly board) >> NACA 63009 - elevator (less drag) >> NV/Aero Wheel Pants/Fairings >> West Virgina University Blue & Gold paint (*see question below*) >> >> Dual wing tanks and a small header tank (~16 gallons) >> Revmaster 2300, upgraded 2100D (~80HP), or Corvair 2700 >> Ed Sterba Propeller >> >> Steam gauges (personal preference......yes I know haha) >> Ipad mounted with WingX or Foreflight >> Engine Monitor (EGT/CHT) >> Handheld Radio (removable in order to use in a different aircraft if needed) >> Transponder/ADSB-Out >> >> Empty Weight: 650-700 lbs >> Gross Weight: 1150-1200 lbs (500 lb useful load) >> Estimated Cruise: 120-130 KTAS >> Would like ~700-800 FPM near gross >> Range with 45 min reserve: ~300 NM (all the more I would need before a >> break) >> >> I would like to achieve at least a 700 FPM climb at gross, and cruise >> around 120-130 KTAS. I believe it is possible with this setup, as N6399U >> climbs out around 400-500 FPM near gross (but it's only ~70 HP), and >> cruises at ~110 KTAS with a Sterba 54x54" propeller and the RAF48 airfoil. >> The "new" airfoil should add another ~5 KTAS and a slightly better >> climbout, and a higher pitched 54" x 58" propeller should add another ~5 >> KTAS in cruise as well. With newer wheel pants and some small aerodynamic >> "clean ups", 120-130 KTAS seems quite doable. >> >> I would love to paint it WVU Blue and Gold, but I do recall reading several >> posts about the foam/glass not enjoying darker paint on a very hot day, >> possibly warping/loosening the airframe/epoxies. Can anybody shed some >> light on this? >> >> To start off with, and have a little bit of fun as well, I have began >> modeling my (envisioned) cockpit panel in FreeCAD, and plan to build the >> entire plane on here before beginning construction. I may even take it a >> step further and try to analyze my design in a CAE software to try to get a >> grasp at it's performance. >> >> If you made it this far, thank you very much for reading this far. With >> that said, I humbly ask......what am I missing, and what shall I keep an >> eye out for? >> >> Thank you >> >> V/R >> >> Sammer >> _______________________________________________ >> Search the KRnet Archives at >> https://www.mail-archive.com/krnet@list.krnet.org/. >> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. >> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change >> options. >> To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > > Steph and his dad are building the KR-2S see > [http://www.masttotaalconcept.nl/kr2](http://www.masttotaalconcept.nl/kr2) > > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
