mmattockx

I tried this over on the Scratchbuilding forum with no luck, so here goes.

Does anybody have a 3-view drawing for the 260 or know of a place I can get one?


TIA,
Mark

DMichael

My Feedback: (5)

Mark,

If you are looking for something to do, say, a color scheme I may have something for you. It is an Extra 300 three view- but could easily be modified to a 260.

Dave

Laserdude

My Feedback: (3)

If you want accurate three views for scale competition you probably won't find any. I looked for some several years ago. The problem is the 260 was only a proto type that was built to test ideas that led to the 300. Since it never went into production three views were never drawn - or so I'm told.

If you do find some please let me know as I would love to have a set also.

rmh

It was a Lazer -made in glass-
Not trying to be funny --

mmattockx

Thanks, Dave, but I am looking for a scale set to do a scratch build from. I have one fairly low quality 3 view I found, but I was hoping for something a bit more formal and accurate. How different is your 300 drawing to the 260? If the wing is close and the fuse profile is close, I can fudge the rest...

Mark

DMichael

My Feedback: (5)

Mark,

The 300 three view I posted is probably not even that accurate for the 300- let alone the 260. I happened to have drawn up and built a 260 myself a few years ago- I just drew it the way I liked it based on pictures. It is stretched to the max (10% fuse). The real 260 was actually rather stubby compared to the other Extras- the Smithsonian site lists it at:

Span 24.75'
Length 20'
The fuse is 80.8% the length of the span


At the same tim the 300 is:

Span 26.25'
Length 23.36'
The fuse is 89% of the length of the span

And the 300L is:
Span 25.25'
Length 22.83'
The fuse is 90.4% of the length of the span

Even the 200 is
Span 24.6'
Length 22.3'
The fuse is 90.6% of the length of the span.

Here is a source of information that you might find helpful/interesting:

http://bjaffee.rchomepage.com/extrapage/

You'll also find some pictures on www.airliners.net that may help you:


Dave

mmattockx

Thanks for the info, Dave. The pics are a big help.

The reason I am looking for the 260 is it seems to have a reputation as being a better flyer than the 300's, with less pitch coupling on rudder. Plus, I like the looks of the 260 better, with the solo canopy. I have been referred to the Miles Reed plans, in 80" and 90" versions and have contacted him about them. I will start a new thread on that design to see what people have to say about them.


Mark

toprudder

I was under the impression that to be an IMAC legal plane, the model must be a (roughly) scale model of a plane that has competed in IAC. If the 260 has never competed in IAC, then is it a legal model for IMAC?

In looking at the rules, (sections 3.1 and 3.2) it does not seem clear.

Bob R.

Dangerous Dan

My Feedback: (1)

3.1. The events accommodate aerobatic monoplanes and biplanes
which are replicas of types known to have competed in International
Aerobatic Club (IAC) competition, or replicas of types known to be
capable of aerobatic competition within the airspace known as the
“Box.�

toprudder

Yes, but also reference section 3.2:

3.2. All classes except Basic require that the pilot must meet the
requirements defined in Rule 3.1. The Basic Class is open to all competitors
with a monoplane or biplane aircraft. There is no minimum
size requirement for any class. Contest Directors may make an exception
for a model of a full-scale aircraft that was built for IAC competition,
but has not yet competed. Proof of the latter is the responsibility
of the contestant.

3.1 and 3.2 seem to contradict.

Dangerous Dan

My Feedback: (1)

IMHO
3.1 allows aircraft that are replecas of full scale that are capable of IAC(pwr weight etc) but may have never flown it.
3.2 allows aircraft that were built specifically for IAC but never flew in it or possibly never flew at all

why_fly_high

My Feedback: (19)

While a good question and the rules are vague it does not apply to the 260. Patty Wagstaff competed and I believe won at least here first national championship with the 260.

Dan

Laserdude

My Feedback: (3)

[quote]ORIGINAL: why_fly_high

While a good question and the rules are vague it does not apply to the 260. Patty Wagstaff competed and I believe won at least here first national championship with the 260.

Dan


Absolutely correct and she also was a member of the US Aerobatic team and competed in the world championship with the 260.

sweetpea01

My Feedback: (10)

www.turbosquid.com

They sell a 3-d View of the 260 for like $19

mmattockx

That is almost perfect for me, except the only formats they offer are 3D Studio (.3ds) or 3DS Max (.max) and Solidworks will not open those...[] If anybody has a way to convert these formats to a dumb solid standard (IGES, STL, etc.) I would be most grateful. So close...

Thanks,
Mark

Dangerous Dan

My Feedback: (1)

try http://www.download.com I have often found shareware there that converts files

CollectivelySpaced

My Feedback: (18)

mmattockx - sent you a pm.

ramcfarland

My Feedback: (44)

Patty Ws winning Extra (260) resides at the Smithsonian Air and Space Museum perhaps contacting a curator representing the D.C. Air and Space museum could prove help ful for your documentation chores :the 260 is drop dead gorgeous as displayed.