Re: Re: what is difficult in building indoor duration

From: Jake Palmer <82.jake_at_gmail.com>
Date: Wed, 17 Oct 2012 16:27:36 -0700

Eliminating BOM rules doesn't necessarily mean more people. I have no
interest in FAI events if BOM is dropped or adjusted to allow hubs. I'm
pretty sure some others feel the same.

On Wed, Oct 17, 2012 at 2:47 PM, Don DeLoach <ddeloach_at_comcast.net> wrote:

> **
>
>
> Bring it on I say. More bodies us what indoor desperately needs.
>
> Speaking from long experience in outdoor F1, the best modelers flying
> homemade models will always have an edge.
>
>
>
> Don DeLoach
>
> Sent from my iPhone
>
> On Oct 17, 2012, at 3:40 PM, Jake Palmer <82.jake_at_gmail.com> wrote:
>
>
>
> Here's a hypothetical. What if the BOM rule went away and some of the top
> competitors began selling components? Treger sells his hub for about $100.
> Let's say Schramm started selling wings for $150, and prop blades for $100
> a pair. Now you need to spend $350 to build one plane. You need several
> backup models to compete. That means I need to invest $1400 in models to be
> competitive. Is that going to spur interest in the hobby or will it just
> scare away the average guy like myself that can't afford to risk a $350
> model on every flight?
>
> On Wed, Oct 17, 2012 at 2:29 PM, Yuan Kang Lee < <ykleetx_at_gmail.com>
> ykleetx_at_gmail.com> wrote:
>
>> **
>>
>>
>> Don,
>>
>> Please don't agree with me !!!! LOL ...
>>
>>
>> --- In <Indoor_Construction%40yahoogroups.com>
>> Indoor_Construction_at_yahoogroups.com, Don DeLoach <ddeloach_at_...> wrote:
>> >
>> > I agree Kang.
>> >
>> > Don DeLoach
>> >
>> > Sent from my iPhone
>> >
>> > On Oct 17, 2012, at 2:59 PM, "Yuan Kang Lee" <ykleetx_at_...> wrote:
>> >
>> > > So if there's no advantage in Treger's hub, why not allow it to be
>> purchased and used?
>> > >
>> > > --- In <Indoor_Construction%40yahoogroups.com>
>> Indoor_Construction_at_yahoogroups.com, Jake Palmer <82.jake_at_> wrote:
>> > > >
>> > > > I tend to agree with Mike. While I certainly appreciate the
>> elegance of
>> > > > Treger's hub, I don't think it offers any performance advantages
>> over an
>> > > > older style hub.
>> > > >
>> > > > On Wed, Oct 17, 2012 at 1:29 PM, mkirda_at_
>> > > > <mkirda_at_>wrote:
>>
>> > > >
>> > > > > **
>> > > > >
>> > > > >
>> > > > > I would have to disagree on composites being out of reach, Nick.
>> > > > > A foot of carbon could make a lifetime of hubs and costs ~$5. Add
>> > > > > laminating epoxy and balsa rather than Rohacell and you have an
>> easy carbon
>> > > > > yoke in just two layup steps. All you need is a Food Saver.
>> > > > >
>> > > > > I am not convinced that the Treger design is any better though-
>> There are
>> > > > > some torsional stresses that might be better dealt with using Lutz
>> > > > > Schramm's design for example.
>> > > > >
>> > > > > Regards.
>> > > > > Mike Kirda
>> > > > >
>> > > > >
>> > > > > --- In <Indoor_Construction%40yahoogroups.com>
>> Indoor_Construction_at_yahoogroups.com, Nick Ray <lasray_at_> wrote:
>> > > > > >
>> > > > > > I think the ease of construction has a great deal to do with the
>> > > > > materials
>> > > > > > involved. A Brown / Kagan style hub is well within the range of
>> average
>> > > > > > indoorist. Most of the materials can ordered from A2Zcorp or
>> even
>> > > > > scavenged
>> > > > > > locally. However, composite hubs like Treger, Tyson and
>> Sandborn have
>> > > > > built
>> > > > > > require substantially more involved manufacturing processes.
>> > > > > > All three use formed fiberglass tubes and carbon layup screw
>> holders. The
>> > > > > > vacuum bagging process alone is cost prohibitive for many
>> people. One has
>> > > > > > to make 6 or 7 composite hubs to break even when compared to
>> the cost of
>> > > > > > buying them from Treger. Maybe someone would like to produce
>> V/P kits
>> > > > > where
>> > > > > > the base components are formed and then sent out with assembly
>> > > > > > instructions.
>> > > > > >
>> > > > > > If F1D keeps moving in the direction of using more and more
>> composite
>> > > > > > technology we are going to be in the same situation as F1B
>> within the
>> > > > > next
>> > > > > > ten years. I am for not placing materials restrictions on the
>> models, but
>> > > > > > at the same time I think that for many competitors,
>> particularly juniors
>> > > > > we
>> > > > > > may have to decide how we would like to go forward with regard
>> to the BOM
>> > > > > > as the models become more intricate.
>> > > > > >
>> > > > > > Regards,
>> > > > > >
>> > > > > > Nick
>> > > > > >
>> > > > >
>> > > > >
>> > > > >
>> > > >
>> > >
>> > >
>> >
>>
>>
>
>
Received on Wed Oct 17 2012 - 16:27:37 CEST