I always suspected that holes would give you more drag, and this confirms it. But the problems with holes is how do you keep them from causing drag when you're not using the belly board? I'm pretty sure a surface parallel to the airflow that's punched full of holes would have more parasite drag than a smooth surface, and this would be your condition all the time. Could you build up the area under the holes with epoxy/flox or something similar so it would be level with the surface of the belly board when it's tight against the bottom of the fuselage?
Mike Taglieri On Fri, Dec 26, 2014 at 1:39 PM, Mark Jones via KRnet <krnet at list.krnet.org> wrote: > YeeeeHaaaaaaaaaaaaa. I just returned from a 1.2 hour flight around Steven > Point, WI. This was my first flight since 10/25 due to our shi&&y weather > we have up here. So what does this have to do with belly boards? Here is > how I use mine in the landing sequence. I called left downwind 21 Stevens > Point and reduced my speed to 125 MPH. Next I called turning left base 21 > Stevens point and am now at 120 MPH. I maintain that speed through base and > call turning final 21 Stevens Point. I pull back the power to slow her to > 115 and drop the belly board to full down position. At this point I would > estimate I am now at 1/4 mile final and slowing fast. I cross the numbers > looking at 80 MPH and when the wheels touch the pavement I am doing 70 MPH > and she sets down smooth a silk. The following are two links. The first is > the web link to the construction of my solid belly board. The second is a > landing video on runway 21 Stevens Point and note you can see the speed > brake being lowered. Also note the minor deflection of the gear with > touchdown and that is loaded up with two people on board. > > Belly Board web link: http://www.flykr2s.com/bellyboard.html > > Landing video: https://www.youtube.com/watch?v=pfXagjar5IE > > Mark Jones (N886MJ) > Stevens Point, WI > E-mail: flykr2s at charter.net > Web: www.flykr2s.com > > > > _______________________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
