KR> Great stuff expanding foam
Somewhere in the Newsletters, it says that ALL expanding foam should be warmed after setting and before sanding to shape. That will cause it to finish expanding. Mike Taglieri On May 18, 2015 12:40 AM, "Paul Visk via KRnet" wrote: > I think I made a mistake. I had some voids in my turtle deck I wanted to > fill. > Thanks Dan. After all day in the sun it seemed to stop expanding. All > the foam is coming out after I put the outside layer of glass on. So it > won't be an issue. But in the future, I will not use that crap again. > > Paul Visk > Belleville Il. > 618-406-4705 > ___ > 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 >
KR> Great stuff expanding foam
This stuff takes some experimentation to use well. I always underestimate how much it will expand. For good adhesion apply a small bead to all surfaces and let the foam fill towards itself. Large balls of foam contain large voids of gas. Don't heat expanding foam if you want small cell size. Peter Somewhere in the Newsletters, it says that ALL expanding foam should be warmed after setting and before sanding to shape. That will cause it to finish expanding.
KR> Ballast Weight Installation
I had previously reported that I would need to add 49 pounds ballast at the engine area to meet my goal of moving the cg 3 inches forward on my KR-2 . I had reported some erroneous numbers for the weight and location of the elevator balance weight. The correct numbers are 4.71 pounds with an arm of 95 inches. The nose ballast location is still 23 inches forward of the stub wing leading edge. Doing the math: 4.71 x 95 / 23 = 19.45 pounds ballast. By removing the elevator balance weight with its mounting and bolts, I will not need that 19.45 pounds of ballast in the nose. For the ELT move from the baggage shelf to the cockpit floor forward of the spar: The ELT with batteries and rack weighs 3.5 pound. The arm at the baggage shelf is centered at 60 inches. The new location is centered at 0 inches arm. No weight loss with moving the ELT, but the previously needed ballast would be 3.5 x 60 / 23 = 9.1 pounds, now no longer needed. With the removal of the elevator balance weight and move of the ELT, the current ballast is now: 49 - 19.45 - 9.1 = 20.45 pounds. A pound or two at long moment arms does make a big difference. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA
KR> Weight and balance
Has anyone ever tried to support the airplane under the stub wing and lift up on it with the wings attached tail feathers completed get in the plane engine on the firewall fuel empty fuel full that's the way I did it in the radio control airplane days or would something break or poke a hole in the wing perhaps maybe a support block could be made under the wing to keep from pushing through just seems like an easy way to accurately measure your weight and balance center of lift any thoughts
KR> Weight and balance
You will punch through and a block will crush foam... Iirc w&b is best done with 3 scales, one under each wheel... You can then calculate cg from the weight diff On May 20, 2015 5:27 PM, "dean choitz via KRnet" wrote: > Has anyone ever tried to support the airplane under the stub wing and lift > up on it with the wings attached tail feathers completed get in the plane > engine on the firewall fuel empty fuel full that's the way I did it in the > radio control airplane days or would something break or poke a hole in the > wing perhaps maybe a support block could be made under the wing to keep > from pushing through just seems like an easy way to accurately measure your > weight and balance center of lift any thoughts > ___ > 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 >
KR> Weight and balance
Yes I do the same thing with my RC planes. I have every intention of doing it before I fly my plane. Because after all I am human... Craig www.kr2seafury.com Frankenstein Lycoming powered > On May 20, 2015 at 8:26 PM dean choitz via KRnet > wrote: > > > Has anyone ever tried to support the airplane under the stub wing and lift > up on it with the wings attached tail feathers completed get in the plane > engine on the firewall fuel empty fuel full that's the way I did it in the > radio control airplane days or would something break or poke a hole in the > wing perhaps maybe a support block could be made under the wing to keep > from pushing through just seems like an easy way to accurately measure your > weight and balance center of lift any thoughts > ___ > 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
KR> Weight and balance
At 07:26 PM 5/20/2015, you wrote: >Has anyone ever tried to support the airplane under the stub wing and lift >up on it with the wings +++ If you accurately weigh and measure the airplane you can "lift the airplane" with pencil and paper. Larry Flesner
KR> Help In GA
Does anyone ?live near Peachtree Georgia? ? Or is anyone on the way to the Aircraftspruce East facility? I need a 4x4 by 1/8 inch sheet of plywood to finish ?up ?my fuselage. I will be driving to Atlanta GA Saturday ?night after ?aircraftspruce is closed and leaving before they open on Tuesday.? If someone could ?pick up the plywood for me and I can pick it up from you? ?I might be able ?to ?make it worth your ?time.? I know it is a lot to ask. I would greatly appreciate the help! JoeFlorida? Sent from my Verizon Wireless 4G LTE smartphone
