Re: Light-Sport Aircraft Yahoo group Can anyone read "Efficiency"

--- In Sport_Aircraft@yahoogroups.com, b d <gpabruce@...> wrote:
>
> Do you have any info on it?

My, my, how a thread can take an interesting turn and allow intriguing revelations, if only a Trigger-Happy "moderator" (aka CENSOR) would step out of the way!

Perhaps we'll be flying with electric motors after all, with self-contained power.

http://www.solarstik.com/stik_vs_gen.php

"Solar" in this case is a brand name for Gas turbines, however. Adding very much to the confusion.
http://mysolar.cat.com/cda/layout?m=35503&x=7

A bit larger than 20 pounds.
http://www.generatormart.com/200901232225188538.shtml

Still would be interesting to find more details of smaller type on homebuilts.

"No quicker way to kill off a group, than with CENSORSHIP"
Barnaby

> On Sun, Dec 26, 2010 at 10:01 AM, James Ferris <mijniljj@...> wrote:
>
> >
> >
> > The John Deere solar turbine used on ground power units to supply
> > electric power to airecraft on the ground have been used in small home build
> > aircraft (about 100 HP) and weigh about 30 Lb.
> >
> > ------------------------------
> > *Subject:* Re: Light-Sport Aircraft Yahoo group Can anyone read
> > "Efficiency"
> >
> >
> >
> >
> > --- In Sport_Aircraft@yahoogroups.com <Sport_Aircraft%40yahoogroups.com>,
> > b d <gpabruce@> wrote:
> > >
> > > Abid,
> > >
> > > I appreciate your opinion and I can accept and respect that as your
> > opinion
> > > however I also respectfully disagree.
> > >
> > > Out of curiousity, why do you say "turbine engines will not be very
> > > efficient on LSA"? I don't agree but I'd like to hear why you think that.
> > >
> >
> > I'll defend my rAbid little "buddy" with this statement comparing
> > reciprocating piston engines to gas turbines.
> >
> > Turbine engines produce a great deal more power for their weight than
> > piston engines, but they burn more fuel and are much more expensive to
> > manufacture.
> >
> > Shouldn't take more than a line or two from Bruce to give a specific
> > example of a turbine (even his so-called "scaleable" turbine) which gives
> > higher horsepower output per pound of fuel burnt than a piston engine.
> >
> > Bruce will most likely find himself striking out when the question of
> > "efficiency" is asked in such a straight-forward manner.
> >
> > Barnaby
> >
> > > My opinion:
> > > We have many examples today of successfull power technology that can be
> > > scaled up or down to fit any need. Gas Turbine is only one. We know that
> > the
> > > weight to power ratio fits the aviation application. We have working
> > > examples of heat recovery and noise elimination that would be conducive
> > to
> > > light aviation (for lack of a better term for GA and LSA and UL) and even
> > > heavy aviation. If we combined just the knowledge and technology we
> > already
> > > have and scaled it to fit the application, I believe we can have a far
> > more
> > > advanced power unit than we presently have and many varieties. We have
> > few
> > > choices today and that shouldn't be the case.
> > > I can list what we have, or what I know we have. You may know of more.
> > > If we were then to take that list and scale each technology to the size,
> > > weight and power that we need for a given aircraft (1, 2, or 4 place
> > > aircraft) we would see that we far more choices than are available today.
> > >
> > > I won't go into all that right now but I would be happy to explore it
> > with
> > > you if you would like. We can do it off line so as not to bore the people
> > on
> > > the list. It can be an interesting exercise.
> > >
> > > The main thing is to not be negative about anything and to examine
> > > everything objectively.
> > >
> > > Be back shortly, have to get my grandson.
> > >
> > > Bruce
> > >
> > >
> > > On Fri, Dec 24, 2010 at 7:44 PM, apollonorthamerica <
> > > apollonorthamerica@> wrote:
> > >
> > > >
> > > >
> > > > Hi Bruce,
> > > > I got your point but I will tell you this as well.
> > > > Turbine engines will not be very efficient on LSA.
> > > > Battery will still store the energy and power electrical motors
> > rotating
> > > > the prop. That battery may get its re-charge in a hybrid fashion
> > whether it
> > > > be from an idea of Van De Graf generator or simply plugging it into the
> > grid
> > > > on the ground or both or more than both.
> > > >
> > > > That will be the next step. That's just my opinion.
> > > > Best and Merry Christmas,
> > > > Abid
> > > >
> >
> >
> >
> >
>

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