KR> tri-carriage
I am from South Africa and have just bought a partly assembled KR2. We are not comfortable with a taildragger and would like to fit a tri- wheel under carriage. Where can one find such and perhaps plans to fit them? The previous owner had to cut the plane behind the cockpit to get it out of his garage, and I wonder if someone has some views on the best way to join the two parts. The frame is of wood. Andy Hatting
Réf. : KR> tri-carriage
Hi, Andy. I used to be from South Africa, and out of curiosity, where are
you, and whose aircraft was it?
Utherwise, scarf joints with aircraft grade Epoxy should work just fine.
Make a jig to hold everything together, then glue, then clamp in place,
and voila!
Serge Vidal
KR2 ZS-WEC
Paris, France
"Andy Hatting"
Envoyé par : krnet-boun...@mylist.net
2005-01-13 07:24
Veuillez répondre à KRnet
Remis le : 2005-01-13 07:25
Pour : kr...@mylist.net
cc :(ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> tri-carriage
I am from South Africa and have just bought a partly assembled KR2.
We are not comfortable with a taildragger and would like to fit a tri-
wheel under carriage. Where can one find such and perhaps plans to
fit them?
The previous owner had to cut the plane behind the cockpit to get it
out of his garage, and I wonder if someone has some views on the
best way to join the two parts. The frame is of wood.
Andy Hatting
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Re: Réf. : KR> tri-carriage
Hi Serge.
I am from Grahamstown. We (partner & self) bought the plane from a
third party, who needed $ quickly. But the actual builder is from the
states, and it appears as if he got tired of the building process. The
plane was partially assembled in Port Alfred near 43rd Airschool.
Thanks for the info.
Regards,
Andy
On 13 Jan 2005 at 11:02, Serge VIDAL wrote:
Hi, Andy. I used to be from South Africa, and out of curiosity, where
are you, and whose aircraft was it? Utherwise, scarf joints with
aircraft grade Epoxy should work just fine. Make a jig to hold
everything together, then glue, then clamp in place, and voila!
Serge Vidal
KR2 ZS-WEC
Paris, France
"Andy Hatting"
Envoyé par : krnet-boun...@mylist.net
2005-01-13 07:24
Veuillez répondre à KRnet
Remis le : 2005-01-13 07:25
Pour : kr...@mylist.net
cc :(ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> tri-carriage
I am from South Africa and have just bought a partly assembled KR2.
We
are not comfortable with a taildragger and would like to fit a tri-
wheel under carriage. Where can one find such and perhaps plans to
fit
them? The previous owner had to cut the plane behind the cockpit to
get it out of his garage, and I wonder if someone has some views on
the best way to join the two parts. The frame is of wood. Andy Hatting
___
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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
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KR> tri-carriage
Andy, I bought a kr2 in the boat stage and cut it into on purpose so I could stretch it another 14 inches. It wasn't too difficult for me because the bottom ply skin had not been put on yet. I leveled the boat, built a support for both the rear section and the front section so the top logerons could be maintained in the same plane at all times. I cut through the boat 1/2 way between 2 vertical members using a 1 to 12 ratio angle on the cuts. I added an extra logeron to the bottoms of both top logerons and an extra logeron to the tops of both bottom logerons for the length of 2 stations (approx 28"). Once I had the rear section moved back 14" I clamped 1"x2"s to the sides at the top logerons and also near the bottom logerons to hold everything in place. By doing this all of the horz. members top and bot had to be cut and replaced because all of those distances will have to change. Also the bottom rake as it slopes up to the tail will also change and compensation will have to be made to accommodate this change in slopes. I also added 4 pieces of 3/32" plywood by 4" wide to the joints on the inside of the skin. (this is over kill) Then put in an extra station. If you already have the skin on the bottom stretching might be out of the question unless you just cut the whole bottom out from the rear spar back to the tail and replace it. Mike Turner Jackson, Mo - Original Message - From: Andy Hatting<mailto:a.hatt...@ru.ac.za> To: kr...@mylist.net<mailto:kr...@mylist.net> Sent: Thursday, January 13, 2005 12:24 AM Subject: KR> tri-carriage I am from South Africa and have just bought a partly assembled KR2. We are not comfortable with a taildragger and would like to fit a tri- wheel under carriage. Where can one find such and perhaps plans to fit them? The previous owner had to cut the plane behind the cockpit to get it out of his garage, and I wonder if someone has some views on the best way to join the two parts. The frame is of wood. Andy Hatting ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp<http://www.maddyhome.com/krsrch/index.jsp> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net<mailto:krnet-le...@mylist.net> please see other KRnet info at http://www.krnet.org/info.html<http://www.krnet.org/info.html>
KR> tri-carriage
www.diehlaero.com for the gear. One of the highest stressed parts of a plane is the fusalage just behind the wing so that is not a real good place to repair it. Do take a look at the FAA advisory Circular A.C. 43.13 in the wood repair section. You can download it from the FAA web site. It won't give you the complete answer, but it does give you the proper methods for making scarfs and general wood construction and repair. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -Original Message- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Andy Hatting Sent: Thursday, January 13, 2005 1:25 AM To: kr...@mylist.net Subject: KR> tri-carriage I am from South Africa and have just bought a partly assembled KR2. We are not comfortable with a taildragger and would like to fit a tri- wheel under carriage. Where can one find such and perhaps plans to fit them? The previous owner had to cut the plane behind the cockpit to get it out of his garage, and I wonder if someone has some views on the best way to join the two parts. The frame is of wood. Andy Hatting ___ 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> tri-carriage - split fuselage
The previous owner had to cut the plane behind the cockpit to get it out of his garage, and I wonder if someone has some views on the best way to join the two parts. + Andy You are on thin ice here, but the airplane can be joined without any hassles provided it is done properly. I would suggest that you get hold of Sybrand Strachen (he was with SAA and stayed in Boksburg) or one of the other "approved Persons" that knows his way around wood. You will have to involve one of them sooner or later anyway to get the bird signed off. It would be important to splice each longeron and diagonal (if applicable) with a doubler (splice) tapered at 1:10 (or 1:12) on each side of the break. It is highly unlikely that you will be able to "scarf" the existing longerons, so glue them together as is (where they were cut) taking great care to keep things straight - then add the splices (with dual taper) of the same material /dimensions. (Remember to do test pieces with the same batch of glue and material) Similarly, it makes no sense to try and scarf the existing ply skin for insets. Hopefully there is space on the inside for a 75mm strip of good quality 45 degree ply (similar thickness or greater) that is scarfed on both edges to be glued (centered) over the join. If not, you may have to locate the skin splice doubler on the outside - not as bad as it first sounds if you consider that the ply is under 3mm and the taper can be as flat as you wish (typically 25:1) provided you have the full depth width for the required distance either side of the join. There may be a composite solution for the skin join with a few layers of cloth resin inside and out - get advice from someone informed. It is not necessary to go for "belts and braces" - that would just add weight. In essence - a) ensure the continuity of each longeron (4) with a doubler (tapered on each end from 5/8" to zero over 6 to 8") PROPERLY glued. B) Similarly, ensure the continuity (of the forces within) the skin by joining them as above. Groete Steve J Lusaka
KR> tri-carriage
Hi Andy I am from SA as well and know that plane, it was built by a guy by the name of Robby Allen right here in Port Elizabeth. Because the wing is one piece, he couldn't get it out of his workshop down a fairly long flight of stairs so he cut it as described. After that the wing/ fuz section went down wing tip first with the rear of the fuz after. It also had a type IV motor mounted "backwards".It was after meeting him that I decided to build one as well.I actually work with a relative of his. Changing it to a tri gear would be quite simple. You will have to make two holes in the wings directly behind the existing mountings and then swap the left side with the right and changing them from in front of the spar to behind at the same time (assuming that Robbie drilled the holes symetrically). As for the nose wheel, the standard Diel gear should be an easy job. There are a few other concerns that you should be aware of, contact me privately for more. Regards Dene Collett KR2S-RT builder Port Elizabeth South Africa mailto: dene.coll...@telkomsa.net P.S: checkout www.whisperaircraft.com - Original Message - From: "Andy Hatting" To: Sent: Thursday, January 13, 2005 8:24 AM Subject: KR> tri-carriage > I am from South Africa and have just bought a partly assembled KR2. > We are not comfortable with a taildragger and would like to fit a tri- > wheel under carriage. Where can one find such and perhaps plans to > fit them? > The previous owner had to cut the plane behind the cockpit to get it > out of his garage, and I wonder if someone has some views on the > best way to join the two parts. The frame is of wood. > Andy Hatting > > ___ > 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 >
