Cirrus Deploys Chute Safely

"C J Campbell" wrote in message
...
Even the Cirrus will spin -- you just pull the CAPS handle to make it
stop.
:-) Spin certification is an additional expense and the planes are
expensive
enough as it is.

That is what I was getting at. Just because it isn't certified for spins
and Cirrus "says" it hasn't been tested for spins doesn't mean that Cirrus
has spun the hell out of it.

Not seeking spin certification and the recomendations of the manual appear
to me as a means to reduce liability. Consider the possible consequences of
Cirrus saying that it has great spin characteristics but it isn't certified
for spins and they don't recommend conventional recovery techniques.

On Fri, 24 Sep 2004 00:11:04 -0700, "C J Campbell"
wrote:


"Justin H" wrote in message
...
Why dont people make airplanes that will spin anymore?

Even the Cirrus will spin -- you just pull the CAPS handle to make it stop.
:-) Spin certification is an additional expense and the planes are expensive
enough as it is. Still, there are plenty of airplanes certified for spin
training, not least the ubiquitous Cessna 172.

The Cessna 172 is not certified under the same regulations as the Cirrus.
Unlike cars, once an airplane has received its type certificate, it does
not have to be redesigned whenever the regulations are updated.

The 172 came out in the '50s, and there's a good chance that the actual
type certificate is that of the Cessna 170, which came out in the '40s.
The 172 was certified under CAA regs, not under the modern Part 23 that the
Cirrus had to meet. Take a 1954 Ford and a 2004 Ford, and compare the
complexity, and the degree of Government standards that had to be met.

With that said, I am reminded of an article I read several years ago, about
the development of the Aviat Husky. While looking much like an older
design, it was a brand-new aircraft that was certified under the modern
Part 23. The article quoted the company president saying that the
certification process was not especially onerous or time/money consuming.

It'll be interesting to see how the Sport Pilot consensus standard comes
out, for the certification of Light Sport Aircraft. I can't see the
standard requiring in-depth flight testing...but maybe it will, and allow
the manufacturers to install a ballistic chute if they don't want to go
through the design/test effort.

Ron Wanttaja

"Ron Wanttaja" wrote in message
...
On Fri, 24 Sep 2004 00:11:04 -0700, "C J Campbell"
wrote:


"Justin H" wrote in message
...
Why dont people make airplanes that will spin anymore?

Even the Cirrus will spin -- you just pull the CAPS handle to make it
stop.
:-) Spin certification is an additional expense and the planes are
expensive
enough as it is. Still, there are plenty of airplanes certified for spin
training, not least the ubiquitous Cessna 172.

The Cessna 172 is not certified under the same regulations as the Cirrus.
Unlike cars, once an airplane has received its type certificate, it does
not have to be redesigned whenever the regulations are updated.

Actually, when Cessna started building new piston aircraft, they were
re-certified under the new regulations.

"Ron Wanttaja" wrote in message ...
The 172 came out in the '50s, and there's a good chance that the actual
type certificate is that of the Cessna 170, which came out in the '40s.

The 172 through 172S type certificate was originally issued in 1955 and amended up through
2000. The 172RG is a different type certificate, as is the 170 (came out in 1948).

Earlier, Ron Wanttaja wrote:

...I am reminded of an article I read several years ago, about
the development of the Aviat Husky. While looking much like an older
design, it was a brand-new aircraft that was certified under the modern
Part 23. The article quoted the company president saying that the
certification process was not especially onerous or time/money consuming.

Probably Alfred Scott's article "Lite Engineering and the Myth of
Simplified Certification":

http://www.seqair.com/Other/LiteEng/LiteEng.html

Thanks, and best regards to all

Bob K.
http://www.hpaircraft.com/hp-24

They do spin. Not all recover.

BJC

"Justin H" wrote in message
...
Why dont people make airplanes that will spin anymore?