Re: Which Ultralight to build.....

<fredfighter@[EMAIL PROTECTED]
> wrote in message
news:1181094076.642878.64460@[EMAIL PROTECTED]
> On Jun 6, 12:40 am, "Montblack" <Y4_NOT!...
> 4monty4bla...@[EMAIL PROTECTED]
> wrote:
> > ("Morgans" wrote)
> >
> > > Then, you get to the definition of the span to weight requirements
of
a
> > > motorglider, which are not easy to meet.  I do not think it meets
the
> > > requirements for a motorglider, by a long shot.
> >
> > (Reposted in case someone didn't want to slog through my other post.)
> >
> > As a 'Motorglider':
> > (ii) Maximum weight does not exceed 850 kg (1874 pounds);
> > and
> > (iii) The maximum weight to wing span squared (w/b2) does not exceed
3.0
> > kg/M2 (0.62 lb./ft.2).
> >
> > 500 lbs MTOW
> > and
> > 28.5 ft wingspan = 812 (wing span squared)
> >
> > 500 lbs MTOW (/) 812 = 0.61576 lb./ft.2
> >
> > ...which does not exceed 0.62!
> >
> > So yes, it is a motorglider
> >
> > ...IF the MTOW is 500 lbs
> > ...or we go with longer wings
> > ...or we follow the first link. <g>
> >
> > http://www.usppa.org/Resources/FARs/part103_far.htm
> > (Part 103)
> >
> > Home Depot Ultralight: aka "Motor Glider
101"http://www.digitalmarketingusa.com/homedepotultralight.html
> >
> > Specifications:
> >
> > Empty Weight: 254 lbs
>
> Bull****.
>
> First of all, since 254 lbs is the upper limit for FAR 103 any
> supposed UL that is spec'ed at EXACLTY 254 lbs is suspect.
>
> Secondly, when the first one was built (and have there been
> any more?) the articles about it indicated it was much heavier.
>
> How much does a 10 HP Te***seh motor weigh, ~ 66 lb?
> This plane has two of them, at least half the weight budget
> is used by engines and props.
>
> --
>
> FF
>
Not so at all.

The point was that some subset of aircraft, which do not necessarily fit
the
Part 103 definitions for Ultralight Vehicles, could fit the definitions
for
self launching gliders.  Therefore, those aircraft would also fit the
pilot
requirements of self launching gliders--rather than the pilot requiremnets
of either Experimental Amateur Built or ELSA.

The extent to which that is usefull is not obvious to me at this moment.
However, it is intellectually interesting and the gliding performance as
well as the safety is almost certainly better than a primary glider.

As a concept, it certainly is a hoot!

Peter