KR> canopy covering
Thanks all of you guys for the suggestions. I will let you know what works best of these suggestions, starting with water , then Isopropyl Alcohol
KR> HAPI engine
Joe, For information concerning cracking of HAPI flywheels, check the archives at: http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" Rich Hartwig Waunakee WI
KR> HAPI engine
Joe, For information concerning cracking of HAPI flywheels, check the archives at: http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" Rich Hartwig Waunakee WI
KR> Further to Coating With Epoxy
Since I posted yesterday about surface coating with epoxy I have been reminded that there are products on the market that are designed for this purpose. International Paints 'Everdure', and Smith's 'Clear Penetrating Epoxy Sealer' are two. These products are designed for coating without glass fiber reinforcement by remaining quite flexible after curing. They are not structural adhesives! Structural epoxies such as T-88, WEST, System Three etc, thinned or not, are not flexible when cured. Without glass fiber cloth as a reinforcement in the layup they are unable to withstand tensile loads put upon them if the wood substrate should swell. Cheers! Peter
KR> HAPI engine
Very much appreciated, Rich. The more I read, the more I lean Corvair. Thanks, again. Joe - Original Message - From: To: Sent: Thursday, May 06, 2010 8:28 AM Subject: KR> HAPI engine Joe, For information concerning cracking of HAPI flywheels, check the archives at: http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" Rich Hartwig Waunakee WI ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.437 / Virus Database: 271.1.1/2857 - Release Date: 05/06/10 06:26:00
KR> Remove decals, pinstripes and tape
This is probably old news to many, especially you body and paint experts, so I apologize up front. The KRnet archives have nothing on it, so this is a tip that will be useful to somebody, I hope. It can be a real pain to remove tape, decals and the residues they leave behind. I?ve previously used a heat gun, razor blades, WD40, denatured alcohol, and other chemicals, all of which can be messy and tedious. The builder of my KR used a fair bit of decorative tape. If I used the methods above, removing it was going to be several days of work. So much so that I was considering feathering the edges and painting over it ( I know?tacky and unprofessional). As luck would have it, I came across a device I?d never seen before. It?s a large disk-shaped rubber eraser, shaped like a polishing or grinding wheel, chucked into a drill motor. Mine?s an Astro Eraser Pad which came from my local auto paint and supply distributor (Ned?s, in Concord, CA). 3M sells a similar product called a ?Stripe Off Wheel?, and ACS has one in their catalog called a ?Decal Eraser Wheel?. Harbor Freight doesn?t carry anything similar, nor do my local auto parts houses. Seems like I read that NAPA carries the 3M wheel. The contact surface is made from the same stuff as the Art Gum erasers I used in mechanical drawing and art classes. After just ten minutes with the wheel, the tape and adhesive is gone from the undersides of my wings. It leaves behind little rubber crumbs which are easily vacuumed up. The underlying surfaces are pristine.The small amount of adhesive (if any) which might be left behind, can be cleaned up with goo gone or WD40. This wheel is fast and freakin? AWESOME.
KR> HAPI engine
Rich Hartwig wrote: > For information concerning cracking of HAPI flywheels, check the archives > at: > http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" And the one below is pretty graphic. I wrote this a few years ago after seeing Jim Hill's. - And if it has an aluminum flywheel, check out the two photos at http://www.krnet.org/misc/HAPI_flywheel/050917111m2.jpg and http://www.krnet.org/misc/HAPI_flywheel/050917111m.jpg . This was on Jim Hill's HAPI engine, and it appears to be a matter of seconds away from coming apart. Steve at Great Plains also has a cure for this, I believe. What made it obvious was loads of end play on the crankshaft...the prop would move fore and aft an eighth of an inch or so, rather than the .004" or so it's supposed to be. Mark Langford n5...@hiwaay.net website www.n56ml.com
KR> HAPI engine
I too had a old 1835 HAPI engine on my KR-1 with 500hrs on it when I replaced the alternator last summer. I too found the same Scary Looking elongated holes on my flywheel! In retrospect, I was really glad the alternator failed!!! On 5/6/2010 10:20 AM, Mark Langford wrote: > Rich Hartwig wrote: > > >> For information concerning cracking of HAPI flywheels, check the archives >> at: >> http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" >> > And the one below is pretty graphic. I wrote this a few years ago after > seeing Jim Hill's. > - > And if it has an aluminum flywheel, check out the two photos at > http://www.krnet.org/misc/HAPI_flywheel/050917111m2.jpg and > http://www.krnet.org/misc/HAPI_flywheel/050917111m.jpg . This was on Jim > Hill's HAPI engine, and it appears to be a matter of seconds away from > coming apart. Steve at Great Plains also has a cure for this, I believe. > What made it obvious was loads of end play on the crankshaft...the prop > would move fore and aft an eighth of an inch or so, rather than the .004" or > so it's supposed to be. > > Mark Langford > n5...@hiwaay.net > website www.n56ml.com > > > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > >
KR> canopy covering
>From the KRNet archives (Sid Wood): I had heard and read all manner of horror stories about leaving the coating on too long and how difficult to impossible this task was going to be. Sure enough after a couple hours of tedious picking at the edges I figured there was something to those stories. One sage advised using kerosene, another praised WD-40; I did not relish cleaning up that sort of mess. I called the Spray Lat folks who advised me to remove the coating within one year. Yeah, right, look it's only been 23 years since I got this bubble from RR. The best they could come up with was to put the Plexiglas in a tub of very hot water and dish detergent and hope. I don't have that big of a tub. Not to be deterred, the Spray Lat engineer suggested putting towels on the canopy and soaking these with boiling water. And wished me good luck. One of my Chapter 478 members suggested using a hair dryer to heat up the canopy and the Spray Lat would peal right off. Lo and behold, after a bit of trial and singed fingers, the Spray Lat indeed peeled off in two big sheets to reveal a most pristine bubble canopy. It won't get any better than that, especially thinking of all the Wisconsin bugs and Florida sands that are waiting. Moral of this story: 23-year old Spray Lat will readily release from Plexiglas with application of heat (guess about 200 degrees F). === Oscar Zuniga Air Camper NX41CC San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net
KR> glassing 90 deg.
Hey Guy's, I've been quiet for a while but that's only because I've been busy as heck in the basement. She's coming along nicely. My question for tonight is...How do you get glass to bend 90 degrees without pulling up ? I'm referring to places like the bottom wing fillet that has to go 90 degrees from fuselage side to bottom of plane. I've got air pockets ! Help ! Mike Sylvester kr2s builder Birmingham,AL. Cell no.205-966-3854 _ Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_1
KR> glassing 90 deg.
Hi Mike. You want to lay the glass at 45 degrees to the long edge you are covering. A layup will tend to pucker up when just going straight up and over tighter radius' Hope this helps.. -- Darren Crompton AUSTRALIA = AN-BOLTS www.an-bolts.com.au My building site: www.kr-2s.com SAAA #7125 - Chapter 18 RA-Aus #25866 =
KR> 90 degrees
One more question.. If I'm having trouble with glassing a 90 degree bend, how am I going to glass the aileron spar that is more than 90 degrees ? Mike Sylvester kr2s builder Birmingham,AL. Cell no.205-966-3854 _ The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multicalendar&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5
KR> glassing 90 deg.
Put a bead of stiff micro along there first. or some foam sanded to profile you want. Lynn finished Kr never flown no medical -- From: "MICHAEL SYLVESTER" Sent: Thursday, May 06, 2010 6:54 PM To: "KRNET" Subject: KR> glassing 90 deg. > > Hey Guy's, I've been quiet for a while but that's only because I've been > busy as heck in the basement. She's coming along nicely. My question for > tonight is...How do you get glass to bend 90 degrees without pulling up ? > I'm referring to places like the bottom wing fillet that has to go 90 > degrees from fuselage side to bottom of plane. I've got air pockets ! Help > ! > > Mike Sylvester > kr2s builder > Birmingham,AL. > > Cell no.205-966-3854 > > > _ > Hotmail has tools for the New Busy. Search, chat and e-mail from your > inbox. > http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_1 > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.819 / Virus Database: 271.1.1/2858 - Release Date: 05/06/10 > 10:26:00 >
KR> 90 degrees
Darren is correct Mike, you need to be rolling glass around at 45 degree angles. When I have built Rutan designs, all sharp corner layups are with uni running at 45 degree angles and or bid running at 45 degree angles. Just turn and cut your bid so it rolls over corners at a 45 degree angle. Larry Howell PS: I have made some 90 degree bends like you are talking about in small areas before, but you have to have extra unwetted glass cloth to tape down away from your layup area or weight it down with something or you have to just stay with it until the resin begins to setup. Meaning you have to just keep it pulled down, stippling etc until it setsup to the point that you do not have to watch it any longer. This way is a real pain. Remember the fibers are strongest in straight lines, that is why it does not want to bend/kink in a 90 degree bend over. From: MICHAEL SYLVESTER To: KRNET Sent: Thu, May 6, 2010 10:21:03 PM Subject: KR> 90 degrees One more question.. If I'm having trouble with glassing a 90 degree bend, how am I going to glass the aileron spar that is more than 90 degrees ? Mike Sylvester kr2s builder Birmingham,AL. Cell no.205-966-3854 _ The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multicalendar&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5 ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR> 90 degree bend.
I did a lay up in 2 parts when I did the trailing edge of my wing. Fist I wet out part of the layup that would be on a flat surface. I let that kick then I wetted out the remainder and pulled it over the corner and pulled it tight with peel ply and taped it on the new edge to pull the glass tight over the bend. Lee Van Dyke
