Sam, Anxious to see and hear more. I took my GP exhaust and sent it to jet hot and had it silver ceramic coated inside and out. Got tired of rusting exhausts and I think the heat tape absorbers water/moisture.
Odd thing is, I gained 200 rpm after reinstalling the ceramic coated exhaust. Jeff York On Sun, Nov 10, 2019, 5:33 PM Samuel Spanovich via KRnet < [email protected]> wrote: > Since there hasn't been much chat, I guess I'll bite. > > Without making this my own personal blog, after getting a lot of > encouragement from my wife, who reminded me how much enjoyment the little > flying machine has brought me, I have decided not to sell N6399U. I must > say, I am very lucky to have someone who understands my passion for flying, > and also who gave me some words of motivation to keep the plane, rather > than sell it. > > With that being said, I have decided to look into another improvement as > far as gaining a few extra knots during cruise, this time on the exhaust > pipes. My current system has the exhaust pipes sticking straight out of > the cowling (about half way between the inlet/exit portions of the lower > cowling), meaning that they create a lot more drag than if they were > sticking out at the back of the cowling with proper fairings. My hope is > to make them more streamlined (similar to Mark Langford's, or Troy > Pettway's setup), and a publication in aerodynamics revealed that this can > reduce the parasitic drag by 3.6% (will eventually post the publication if > anybody is curious, however I'm having trouble finding it again on > Google). > > My current cruise airspeed is 110-112 knots at around 3000 feet MSL. After > streamlining the exhaust, I'll post back here with any improvements I > gained from streamlining the exhaust. > > Hope all is well, and safe flying! > > V/R > > Sam > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/[email protected]/. > 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 [email protected] > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. 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 [email protected]
