KIS-List Digest Archive

Fri 03/21/14


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 07:54 AM - Re: TR4 cowling. (Mark Kettering)
     2. 06:17 PM - Sun-N-Fun 2014 (Galin Hernandez)
 
 
 


Message 1


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    Time: 07:54:58 AM PST US
    From: Mark Kettering <mantafs@earthlink.net>
    Subject: Re: TR4 cowling.
    I have used many things to cover parts/temp molds/plugs to be able to pull of molds and/or parts. Some include packing tape, plastic film, stretch-a-lon and Mylar film. The Mylar film is the only one that actually works to provide a mold like surface but can only be used for simple curves. The others do work but then your mold or part just needs the finishing work that you could have just done on the original part in the first place. Most of the time it is more simple and less work to just finish the nice convex surface of the original part/plug once and then the mold is good and future parts are good. Crappy molds make crappy parts that need more finishing work for each part. Not that crappy molds are not useful for one offs and when you have no other choice. The main idea I failed to get across is just take the molds off of a nicely finished aircraft. This is less work and produces better results than trying to take it off the parts. Of course this will not work with internal parts but many can be made from flat panel anyway. Some like the spar can just be made from simple wood forms. Adding joggles for seams is also easy. In fact some of the joggles on Rich's original molds were just added to the molds. In all cases flanges will need to be added. Mark -----Original Message----- From: Robert Reed Sent: Mar 20, 2014 7:08 PM Subject: Re: KIS-List: TR4 cowling. I wonder if you could use a vinal-wrap to achieve the smooth finish without all the filling and painting? It was just a thought (more like a hope). Bob From: Mark Kettering <mantafs@earthlink.net> Sent: Thursday, March 20, 2014 5:40 PM Subject: Re: KIS-List: TR4 cowling. Actually taking molds off the parts is not so easy. The parts do not have a smooth finish so you would need to fill and paint them and this makes assembly a little more difficult. Also the parts are not as rigid as the final assembled group. You also still need to make the flanges to the molds. Mold making is also a lot work and unless if you can sell at least few parts it is not worth the effort and cost. That being said maybe Mark Trickle is going to make molds for the TR-1 and some parts for the Volato 400 may fit on the TR-4. One off parts are also not all that hard to make if there is no other choice. For example Scott made his own wingtips on his TR1 and cut the wing ribs from flat stock on the TR4 Blackbird. Mark -----Original Message----- From: Robert Reed Sent: Mar 20, 2014 11:51 AM Subject: Re: KIS-List: TR4 cowling. Considering the fact that obtaining parts in the future may be entirely upto the current builders / flyers it would be great if we could get some molds made off of those parts before you start any modifications and trimming. This would be true for the wing tips as well. Those are probably the most vulnerable parts that would ever need replacement. Would that be a possibility? Bob Reed From: Mark Kettering <mantafs@earthlink.net> Sent: Thursday, March 20, 2014 9:36 AM Subject: Re: KIS-List: TR4 cowling. Hi Al, Scott and I have both a Lycoming 360 cowl in carbon fiber and a Continental 6 cylinder cowl in fiberglass. The problem is we do not know for sure what one we will be using until we get an engine and do a trial fit. This is 6 to 12 months away. What is your time frame? FYI, these cowls are Camarillo, CA. Mark -----Original Message----- From: Alfred Rosa Sent: Mar 19, 2014 7:45 PM Subject: Re: KIS-List: TR4 cowling. Near the Venice FL municipal airport. Sent from my iPhone On Mar 19, 2014, at 6:05 PM, Galin Hernandez <galinhdz@gmail.com> wrote: Al, where are you located? On Wed, Mar 19, 2014 at 10:23 AM, Alfred Rosa <fredorosa@gmail.com> wrote: Mark or someone , is there a cowling out there for sale? Desperate for a cowling. Al rosa Sent from my iPhone ========== rget="_blank">http://www.matronics.com/Navigator?KIS-List ========== http://forums.matronics.com ========== le, List Admin. ="_blank">http://www.matronics.com/contribution ========== <brums.matronics.com "="=== -Matt Dralle, List Admin.<======


    Message 2


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    Time: 06:17:30 PM PST US
    From: Galin Hernandez <galinhdz@gmail.com>
    Subject: Sun-N-Fun 2014
    I will be flying my TR-4 to Sun-N-Fun on Saturday and maybe again on Sunday so if anybody else is going let me know and we can maybe meet up. Galin N819PR




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