IS-29

On May 17, 12:47*pm, "kirk.stant" wrote:
On May 17, 11:53*am, Jim wrote:

I have a friend looking at rebuilding an IS-29 lark.

Are parts available? Does it have a life limit like the 28?

Thanks,
Jim

Not sure if parts are available (though Blanik parts may fit in some
cases) but it definitely has a life limit, and a factory approved
inspection method for life extension.

Kirk

really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. there are no AD's against the IS-29 that I can find in the FAA
database.

On May 17, 2:05*pm, Tony wrote:
On May 17, 12:47*pm, "kirk.stant" wrote:

On May 17, 11:53*am, Jim wrote:

I have a friend looking at rebuilding an IS-29 lark.

Are parts available? Does it have a life limit like the 28?

Thanks,
Jim

Not sure if parts are available (though Blanik parts may fit in some
cases) but it definitely has a life limit, and a factory approved
inspection method for life extension.

Kirk

really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. *there are no AD's against the IS-29 that I can find in the FAA
database.

I looked at the TCDS for both the -28 and -29 and neither mentioned
life limits. I found a POH for the single seat Lark and it did not
mention life limits.

On May 17, 4:15*pm, T wrote:
On May 17, 2:05*pm, Tony wrote:









On May 17, 12:47*pm, "kirk.stant" wrote:

On May 17, 11:53*am, Jim wrote:

I have a friend looking at rebuilding an IS-29 lark.

Are parts available? Does it have a life limit like the 28?

Thanks,
Jim

Not sure if parts are available (though Blanik parts may fit in some
cases) but it definitely has a life limit, and a factory approved
inspection method for life extension.

Kirk

really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. *there are no AD's against the IS-29 that I can find in the FAA
database.

I looked at the TCDS for both the -28 and -29 and neither mentioned
life limits. I found a POH for the single seat Lark and it did not
mention life limits.

i've never been able to find definitive documentation (besides RAS
posts) online proving that life limits exist in the USA. Although my
CFIG owned a IS28B2 Lark when I was training and did a life extension
on it so I assume it is in fact somehow required.

On May 17, 5:22*pm, Tony wrote:
On May 17, 4:15*pm, T wrote:





On May 17, 2:05*pm, Tony wrote:

On May 17, 12:47*pm, "kirk.stant" wrote:

On May 17, 11:53*am, Jim wrote:

I have a friend looking at rebuilding an IS-29 lark.

Are parts available? Does it have a life limit like the 28?

Thanks,
Jim

Not sure if parts are available (though Blanik parts may fit in some
cases) but it definitely has a life limit, and a factory approved
inspection method for life extension.

Kirk

really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. *there are no AD's against the IS-29 that I can find in the FAA
database.

I looked at the TCDS for both the -28 and -29 and neither mentioned
life limits. I found a POH for the single seat Lark and it did not
mention life limits.

i've never been able to find definitive documentation (besides RAS
posts) online proving that life limits exist in the USA. Although my
CFIG owned a IS28B2 Lark when I was training and did a life extension
on it so I assume it is in fact somehow required.

There was a 2 seat Lark in the club when I first joined. I remember a
30yr calendar life limit that was extended with factory approved
inspection and replacement of some life limit (time) parts like
control pushrods.

really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. *there are no AD's against the IS-29 that I can find in the FAA
database.

Thanks for the comments, do you have a link to the online manuals?

I owned an IS-28 years ago when the life limit issue became a big deal
but don’t remember anything being said about the 29.

Has anybody that’s flown one want to comment on flying qualities?

Thanks,
Jim

On May 17, 8:28*pm, Jim wrote:
really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. *there are no AD's against the IS-29 that I can find in the FAA
database.

Thanks for the comments, do you have a link to the online manuals?

I owned an IS-28 years ago when the life limit issue became a big deal
but don’t remember anything being said about the 29.

Has anybody that’s flown one want to comment on flying qualities?

Thanks,
Jim

http://www.tbss.us/txfiles/POH%20Bra...9D2%20Lark.pdf

On 5/17/2011 7:28 PM, Jim wrote:
really? i found a pdf of the flight and maintenance manual online as
well as the faa type certificate and didn't see anything about a life
limit. there are no AD's against the IS-29 that I can find in the FAA
database.

Thanks for the comments, do you have a link to the online manuals?

I owned an IS-28 years ago when the life limit issue became a big deal
but don’t remember anything being said about the 29.

Has anybody that’s flown one want to comment on flying qualities?

Thanks,
Jim

If you haven't already searched for such, I seem to remember at least one RAS
thread involving some 1st-hand feedback about IS-29 flying traits,
specifically a quirk involving the all-flying tail (which my Zuni also exhibited).

As with all 'flying qualities related' input, it's up to the savvy reader to
put it into some sensible context. Example: 'Over the years' I'd heard/read
about IS-28's being 'abrupt stallers' and 'eager spinners.' When I eventually
got some time in one, I didn't find either ship-trait to be abbie-normal or
alarming or worrisome. This particular one communicated (in the usual
manners), long before serious wing flow separation occurred, that Joe Pilot
was asking it to fly near the slower end/higher AOA portion of its flight
envelope. But then I've found the 2-32's I've asked to do the same to be good
communicators, beforehand, too. Never spun an IS-28, though both 2-32's I'd
experience with *required* properly-sequenced, positive, anti-spin control
inputs in order to break their spins...definitely not the case (say) for any
1-26s I spun.

Regards,
Bob W.

On May 18, 11:32*am, BobW wrote:

If you haven't already searched for such, I seem to remember at least one RAS
thread involving some 1st-hand feedback about IS-29 flying traits,
specifically a quirk involving the all-flying tail (which my Zuni also exhibited).


Regards,
Bob W.

Not all IS-29s have the all flying tail. The IS-29d2 version has a
conventional stabilizer/elevator setup. The access to inspect wing
connections (similar style to the Foka 4, by the way, complete with
the adjustable width drag fitting connection at the front, at least on
the IS-29) is much improved on the d2 version with the large,
removable over-wing fairing. On the 29d2, they fittings were out in
the open and easy to see. On the 29, the spars slip into boxes and
your only view is straight down into the hole.

There have been both variants at Sunflower, and I have flown neither.
So, I can't give a first hand account of either. Other than to say
that the pilots of both have landed with smiles.

Steve Leonard

On May 18, 11:32*am, BobW wrote:
On 5/17/2011 7:28 PM, Jim wrote:

If you haven't already searched for such, I seem to remember at least one RAS
thread involving some 1st-hand feedback about IS-29 flying traits,
specifically a quirk involving the all-flying tail (which my Zuni also exhibited).

Except, of course, that neither the IS-28 or IS-29 has an all-flying
tail...

(see other RAS thread about changing light bulbs, etc.)

Kirk
66

On 5/18/2011 11:13 AM, kirk.stant wrote:
On May 18, 11:32 am, wrote:
On 5/17/2011 7:28 PM, Jim wrote:

If you haven't already searched for such, I seem to remember at least one RAS
thread involving some 1st-hand feedback about IS-29 flying traits,
specifically a quirk involving the all-flying tail (which my Zuni also exhibited).

Except, of course, that neither the IS-28 or IS-29 has an all-flying
tail...

(see other RAS thread about changing light bulbs, etc.)

Kirk
66

http://groups.google.com/group/rec.a...q=%22IS+29%22#

http://groups.google.com/group/rec.a...&q=%22Zuni%22#
(See Richard Friday's comment...)

Regards,
Bob W.