bungee covers

[Hank Jarrett]

Re: bungee covers

If you are going to make molds with Bondo in an original just be VERY careful to put some plastic film in as a barrier. Bondo can become REALLY GOOD glue and you will never get the original back off! Saw a nice 41 instrument panel get ruined by this (not by me, I had ruined less valuable parts doing it though).

Hank

[PA1195]

Re: bungee covers

The Wenglarz aluminum covers are very well made and I expect durable. They are well worth the cost. But like most craftsmen he may someday chose another vocation or location and then what? Finding a common source might be beneficial and carbon fiber is the rage now in light aircraft manufacture - see Cub Crafters and others for proven tech and designs. Maybe even 3-D printing could be used to make a copy providing the material is durable?

Gary

[Jim Hartley]

Re: bungee covers

I thought about 3-D as well. I will press ahead with the carbon fiber option.

Jim

[M Towsley]

Re: bungee covers

And that is one reason why no one wants to make parts for our airplanes. No orders equals no parts.

[astjp2]

Re: bungee covers

3D printed parts are Garbage! we have million dollar machines at work, and no viable parts that are being built to airworthy standards after 18 months of trials, and this is expensive carbon based system...too brittle and too hard. Carbon fiber needs to be protected from UV, by the time you do that, you exceed the weight of aluminum.

[woodmw]

Re: bungee covers

Tim...

As I understand, an owner produced part needs to be the same material as the original. Could a different material be used if engineering data is used to show equal or better strengths and qualities? As in this case, carbon fiber for aluminum.

[PA1195]

Re: bungee covers

It'd be a good experiment for aluminum vs carbon fiber. Common now in aerospace to go lighter and UV protectant paint's not a big problem. I would wonder about ductility, if that 's the right word, for carbon fiber. As mentioned it might take washer support at the fastener holes as lots of prop blast in that fairing area. But why not try? If the originals fail with time anyways then a failure with carbon fiber would have good company from that standpoint.

I assume the originals were stamped (?), and now that tool is gone or headed to East Asia via Mexico.

I no longer have wood on the plane's belly so the covers won't seal anyhow. There's pics elsewhere about the air and exhaust seals around my exposed lower bungees. They have looked good between exposed and unexposed parts when changed from floats to wheels and back so I'm not worried about some exposure.

Gary

[astjp2]

Re: bungee covers

Depending on who you talk to, any faring/filler change is a major modification....

[PA1195]

Re: bungee covers

Depending on who you talk to, any faring/filler change is a major modification....

Best to never park next to another Taylorcraft so there's one available to compare it with....

Gary

[3Dreaming]

Re: bungee covers

It'd be a good experiment for aluminum vs carbon fiber. Common now in aerospace to go lighter and UV protectant paint's not a big problem. I would wonder about ductility, if that 's the right word, for carbon fiber. As mentioned it might take washer support at the fastener holes as lots of prop blast in that fairing area. But why not try? If the originals fail with time anyways then a failure with carbon fiber would have good company from that standpoint.

I assume the originals were stamped (?), and now that tool is gone or headed to East Asia via Mexico.

I no longer have wood on the plane's belly so the covers won't seal anyhow. There's pics elsewhere about the air and exhaust seals around my exposed lower bungees. They have looked good between exposed and unexposed parts when changed from floats to wheels and back so I'm not worried about some exposure.

Gary

The B*12-65 airplanes did not use the bump covers for the bungees.

[3Dreaming]

Re: bungee covers

I wouldn't worry about UV to much with bungee covers, unless you plan on parking upside down.

[PA1195]

Re: bungee covers

I wouldn't worry about UV to much with bungee covers, unless you plan on parking upside down.

Or you park on fresh snow during the day. There's more to life than worry...

[Fred Johnson]

Re: bungee covers

I have a factory set that never has been put on an airplane, could supply for the basis of the carbon fiber. If I Rember, they are not quite identical, and I believe some one else made the same. Let me know, my job takes me to ANC a few times a month, could meet downtown..let me know, would be good for the tribe, and I agree on the not UV issue ��.

[Jim Hartley]

Re: bungee covers

I have a factory set that never has been put on an airplane, could supply for the basis of the carbon fiber. If I Rember, they are not quite identical, and I believe some one else made the same. Let me know, my job takes me to ANC a few times a month, could meet downtown..let me know, would be good for the tribe, and I agree on the not UV issue ��.

I am all for that Fred! I am retired so my time is flexible and Anchorage is an easy commute from the Matanuska Valley.

Jim

[Fred Johnson]

Re: bungee covers

Jim,
Found them, leaving here tomorrow for ANC, Sorry for short notice. Can you meet me at the Downtown Anchorage Marriott Monday after rush hour but before 1pm? If not I should be back Thursday @ 6 pm, leaving hotel Friday before 1pm.If I can figure out how to post pictures I will. I think I bought these in Lockhaven when Taylorcraft was there. My cell 502-727-2766. I have seen the Carbon guys work at the Trade Show and at Stoddards, It will be a good solution.
Cheers
Fred