[DeTomaso] FW: NPC Probably not new to you aeroheads but wow-

[gow2 at rc-tech.net]

When they get it in the private experimental aircraft market, procedures
and process will be developed for usage. After much testing, use,
acceptance is done, the desire to use it and the knowledge gained leads to
companies working with approval with the FAA.

The experimental aircraft has laid the foundation for many many major
improvement in small aircraft certification. Without this foundation, many
many things would have never been brought to the FAA because without the
background and confidence in the product, the FAA just doesn't know what
to do with it.

Just think, single engine airplanes still running around with magneto
ignition!


> What about damage to the hardened resin from the shock of an impact?  Can
> that be measured?
> The Russians built the Alpha class subs in the late 70 with titanium
> hulls, I wonder why they didn't build titanium aircraft?
> Lilo BenZicron (was racing a vintage Mangusta) invented a material he
> named Barotex (http://www.barotex.com/) to replace carbon fiber.  He made
> a 20 pound rear deck for me that is very rigid.  He said he visited
> Boeing, but because his material is new, he didn't get far with it.  I
> have a visit planned to his shop in Silmar to learn more about making
> parts from Barotex.  It is a lot cheaper than carbon fiber.
> Ken
>  
>
>   From: Mike Drew via DeTomaso <detomaso at poca.com>
>  To: gow2 at rc-tech.net; charlesmccall at gmail.com
> Cc: detomaso at poca.com
>  Sent: Wednesday, June 17, 2015 12:26 PM
>  Subject: Re: [DeTomaso] FW: NPC Probably not new to you aeroheads but
> wow-
>
>   In a message dated 6/17/15 11 33 50, gow2 at rc-tech.net writes:
>
>     Ironically one of the problem with composites is repair. When you
>     run
>     something like carbon fiber in a solid line from wing tip to wing
>     tip, if
>     you punch it with an ice pick you have compromised the strength of
>     the
>     entire string.
>
>   >>>...and I think that's something that may have been overlooked in the
>   stampede towards CF construction of airliners.  There are a lot of
>   minimum-wage boneheads driving catering trucks and whatnot that
>   routinely bump into the airplanes they are servicing, causing localized
>   damage.  Such airplanes are immediately withdrawn from service and
>   undergo an inspection, and then often a localized patch is applied and
>   the airplane is ready to go again in just a few hours.  It's not
>   uncommon to see airplanes with multiple such patches on the skin;
>   eventually they will go for a heavy maintenance (akin to a ground-up
>   restoration in automotive circles) and then the offending panels are
>   removed and replaced with new ones.
>   This begs the question--how does a CF airplane respond when a bozo
>   crashes into it with a catering truck?  CF doesn't 'ding' as far as I
>   know.  Can localized repairs be made?
>   F-1 cars may prove reassuring in this regard.  Recall that at this
>   year's Montreal GP, Lewis Hamilton comprehensively smashed his car on
>   the first day's practice, hitting the wall hard, pieces and parts
>   flying everywhere etc.  The whole side of the car was demolished;
>   however the team was able to drag the wreck back to the garage and
>   rebuild it overnight; he went on to win the race.  So that gives some
>   cause for optimism perhaps?
>   Mike
>
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