Q: C-152 spin characteristics

I've spun my MiniMax (homebuilt) twice from 700'. Back straight
and level by 500'after one turn. Of course, I've also done the
"water-ski" trick with it on the Ohio river.

Bob Moore

Mmmm. Gentle.

Weren't you even a little bit nervous about that?

Bertie the Bunyip wrote:
Dudley Henriques wrote in
:

gatt wrote:

Some of
those guys are starting at 5,000 feet indicated or lower, which seems
insane. I'd think you'd want to start at 8,000 or 9,000 just for
safety in case things don't go as planned. (cockpit object falls
under the rudder pedal or something)
You might as well start thinking like a GOOD instructor right now :-)

There should be NO "cockpit object" in the airplane with you in an
aircraft you have prepared properly for giving dual in spins,ready to
"fall under the rudder pedal or something".

This of course is the right answer :-)) Altitude on the other hand, is
also the right answer.



Surely not 9,000, though?

Bertie
Nah. I never did spin instruction that high. Unless you're doing
sustained spin mode research requiring multiple rotation deep into
sustained modes, there's no need to go that high.


--
Dudley Henriques

Bertie the Bunyip wrote:
"gatt" wrote in
:

"John Smith" wrote in message
news:jsmith-403DAB.17314024012008@news-

Does anybody have information to the contrary? I haven't done spins
since 1990 so I don't remember the numbers exactly.
From the SPORTYS catalog...
Basic Aerobatic Manual [Paperback]
Part #: Q00161
Author: William K Kershner
Pages: 100
Cool. I have his flight instructor's manual based on recommendations
here. It's a reference in my lesson plan along with the Jeppeson
Commercial book. Just wondering if other people have other experience;
for example, some people say at C-152 will unstall itself into a steep
spiral descent.

Turns out you can search for "Cessna spin" in YouTube.com and see all
kinds of great videos of people spinning 'em.
One of 'em just shows the instrument panel so you can see when the
spin develops (airspeed drops to zero) and see how much altitude is
lost per second. Can also see the airspeed start to increase
dramatically as the stall is broken.

Cool! There's even chase-plane video of Cessnas doing spins. Some
of those guys are starting at 5,000 feet indicated or lower, which
seems insane. I'd think you'd want to start at 8,000 or 9,000 just
for safety in case things don't go as planned. (cockpit object falls
under the rudder pedal or something)

Well, that can happen and has happened to a lot of people. But if you go
up to 9 grand two up in a 150 you got another emergency anyway, cause
you're out of gas!
I'd be happy enough at five with a floor of three


Bertie


.....not to mention the fact that it might take you past the 100 hour to
get up there :-)))

--
Dudley Henriques

Dudley Henriques wrote in
:

Bertie the Bunyip wrote:
"gatt" wrote in
:

"John Smith" wrote in message
news:jsmith-403DAB.17314024012008@news-

Does anybody have information to the contrary? I haven't done
spins since 1990 so I don't remember the numbers exactly.
From the SPORTYS catalog...
Basic Aerobatic Manual [Paperback]
Part #: Q00161
Author: William K Kershner
Pages: 100
Cool. I have his flight instructor's manual based on recommendations
here. It's a reference in my lesson plan along with the Jeppeson
Commercial book. Just wondering if other people have other
experience; for example, some people say at C-152 will unstall
itself into a steep spiral descent.

Turns out you can search for "Cessna spin" in YouTube.com and see
all kinds of great videos of people spinning 'em.
One of 'em just shows the instrument panel so you can see when the
spin develops (airspeed drops to zero) and see how much altitude is
lost per second. Can also see the airspeed start to increase
dramatically as the stall is broken.

Cool! There's even chase-plane video of Cessnas doing spins.
Some of those guys are starting at 5,000 feet indicated or lower,
which seems insane. I'd think you'd want to start at 8,000 or 9,000
just for safety in case things don't go as planned. (cockpit object
falls under the rudder pedal or something)

Well, that can happen and has happened to a lot of people. But if you
go up to 9 grand two up in a 150 you got another emergency anyway,
cause you're out of gas!
I'd be happy enough at five with a floor of three


Bertie


....not to mention the fact that it might take you past the 100 hour
to get up there :-)))



I took a 150 to 12 in the summer just for fun. It took forever. I also
had a 152 up to FL130 on a very long x-country. Took a while to get
there but it wasnt so bad because it was (very) cold.


Bertie

"Bertie the Bunyip" wrote:

I took a 150 to 12 in the summer just for fun. It took forever. I also
had a 152 up to FL130 on a very long x-country. Took a while to get
there but it wasnt so bad because it was (very) cold.

The patience of Job.

I used to take my 172RG up to FL140 to get over the towering CUs every summer.

It was like pushing a wet noodle uphill. Thank gawd for turbos.

--
Dan
T-182T at BFM

"Dan Luke" wrote in
:


"Bertie the Bunyip" wrote:

I took a 150 to 12 in the summer just for fun. It took forever. I
also had a 152 up to FL130 on a very long x-country. Took a while to
get there but it wasnt so bad because it was (very) cold.

The patience of Job.

I used to take my 172RG up to FL140 to get over the towering CUs every
summer.

It was like pushing a wet noodle uphill. Thank gawd for turbos.


Yeah, I was in a heavy 172 with three up on a 95deg humid day and we maxed
out at about 9.

Bertie

"Dudley Henriques" wrote in message

You might as well start thinking like a GOOD instructor right now :-)

There should be NO "cockpit object" in the airplane with you in an
aircraft you have prepared properly for giving dual in spins,ready to
"fall under the rudder pedal or something".

Yeah, good point. I should mention "securing the cockpit for aerobatic
maneuvers" in the lesson plan/checklist.

Thanks, Dudley!

-c

wrote in message
...
Cool! There's even chase-plane video of Cessnas doing spins. Some of
those guys are starting at 5,000 feet indicated or lower, which seems
insane. I'd think you'd want to start at 8,000 or 9,000 just for safety in
case things don't go as planned. (cockpit object falls under the rudder
pedal or something)

Here is my primary instructor and her buddy doing a 52.5 turn spin in
a A152. They count off the altitude and the spins. You can see the
altimeter unwinding, and it's about 195 feet per turn, as Kershner
says in his Aerobatics book. You can almost make out the airspeed in
some frames which looks like it might be 40 or 50:

Wow! It looks like they're losing ~ 1000 feet every ten seconds through
most of the spin.



http://www.youtube.com/watch?v=IsX2yGJ2Tn4

"gatt" wrote in
:


wrote in message
.
..
Cool! There's even chase-plane video of Cessnas doing spins. Some of
those guys are starting at 5,000 feet indicated or lower, which seems
insane. I'd think you'd want to start at 8,000 or 9,000 just for
safety in case things don't go as planned. (cockpit object falls
under the rudder pedal or something)

Here is my primary instructor and her buddy doing a 52.5 turn spin in
a A152. They count off the altitude and the spins. You can see the
altimeter unwinding, and it's about 195 feet per turn, as Kershner
says in his Aerobatics book. You can almost make out the airspeed in
some frames which looks like it might be 40 or 50:

Wow! It looks like they're losing ~ 1000 feet every ten seconds
through most of the spin.



http://www.youtube.com/watch?v=IsX2yGJ2Tn4


Oh yech. I got nauseous looking at that.

Bertie

gatt wrote:
There should be NO "cockpit object" in the airplane with you in an
aircraft you have prepared properly for giving dual in spins,ready to
"fall under the rudder pedal or something".

Yeah, good point. I should mention "securing the cockpit for aerobatic
maneuvers" in the lesson plan/checklist.


I watched a video once of some Blue Angels practicing when a team member had
planted a sandwich in the cockpit of one of the other planes. The pilot
executed a roll and you could plainly see the sandwich floating across the
cockpit. Pretty funny but I don't think I'd want that happening to me while
performing formation aerobatics.



--
Mortimer Schnerd, RN
mschnerdatcarolina.rr.com