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Yak 52 Bad Habits?
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Scooter



Joined: 10 Jan 2006
Posts: 155

PostPosted: Wed Feb 22, 2006 8:06 am    Post subject: Yak 52 Bad Habits? Reply with quote

Sorry but this has nothing at all to do with flight suits. In the interests of safety (and keeping Scooter alive) I'd like to hear any war stories about Yak 52's doing unexpected things. Seems like I've heard a few things in the past. Are we just talking about accelerated stalls? Are we talking about a normal spin transitioning to a flat spin? So far I haven't seen anything unexpected.

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dsavarese(at)elmore.rr.co
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PostPosted: Wed Feb 22, 2006 10:50 am    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter,
The Yak 52 was a primary trainer in the former eastern block countries.
Consider it in the same category as a T-34. It was used to teach people
who had never touched or felt an airplane before in their life, how to fly.
It was not designed to kill people. There are no "bad habits". Just a
whole lot of fun. And like any high performance/complex airplane, it
requires proper training in all phases of flight.
Dennis

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PostPosted: Wed Feb 22, 2006 11:46 am    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter,
The 52 is truly a fun plane to fly. My only experience with it rearing its
little ugly head was a an abrupt departure due to an accelerated stall.
That was the result of me getting slow in the vertical. This airplane talks
to you before she decides to do something ugly like snap over on her back.
Doc
Quote:
[Original Message]
From: Scooter <yakk52(at)verizon.net>
To: <yak-list(at)matronics.com>
Date: 2/22/2006 10:13:50 AM
Subject: Yak 52 Bad Habits?



Sorry but this has nothing at all to do with flight suits. In the
interests of safety (and keeping Scooter alive) I'd like to hear any war

stories about Yak 52's doing unexpected things. Seems like I've heard a
few things in the past. Are we just talking about accelerated stalls? Are
we talking about a normal spin transitioning to a flat spin? So far I
haven't seen anything unexpected.
Quote:


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=14117#14117








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dsavarese(at)elmore.rr.co
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PostPosted: Wed Feb 22, 2006 11:57 am    Post subject: Yak 52 Bad Habits? Reply with quote

I agree Doc. And your statement can be applied to probably hundreds of
different airplanes. I wouldn't call what you defined a "bad habit"
though. You can fly numerous airplanes in the vertical and get too slow,
particularly if you are slightly past the vertical and bingo, over on her
back she goes. (Her and She are used affectionately and do not imply sex or
gender) -Smile
Dennis

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PostPosted: Wed Feb 22, 2006 12:03 pm    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter -

I have to agree with all that has been said so far. I got my Yak just
over a year ago and about 8 months after getting my private. There
were a lot of high hour pilots on my field who were shocked and
thought I was climbing into a plane way beyond my abilities. I just
kept reminding myself this is the plane the russians and others
tossed kids into to teach them how to fly. The first thing I noticed
was how easy the Yak was to fly, nothing untoward or squirrely. Now,
I wasn't out there doing inverted flight in fact I wasn't doing any
aerobatics. Since then I've taken 10 hours of aerobatic training,
I've flown with Sergei Borak who really showed me what my plane was
capable of doing. This I highly recommend, fly with someone of
Sergei's caliber. One they will really show what the YAK can do and
how to get out of the ugly.

But I totally agree with Doc, this plane talks to you and lets you
know long before things get ugly

Steve
On Feb 22, 2006, at 2:44 PM, Roger Kemp wrote:

Quote:


Scooter,
The 52 is truly a fun plane to fly. My only experience with it
rearing its
little ugly head was a an abrupt departure due to an accelerated
stall.
That was the result of me getting slow in the vertical. This
airplane talks
to you before she decides to do something ugly like snap over on
her back.
Doc
> [Original Message]
> From: Scooter <yakk52(at)verizon.net>
> To: <yak-list(at)matronics.com>
> Date: 2/22/2006 10:13:50 AM
> Subject: Yak 52 Bad Habits?
>
>
>
> Sorry but this has nothing at all to do with flight suits. In the
interests of safety (and keeping Scooter alive) I'd like to hear
any war
stories about Yak 52's doing unexpected things. Seems like I've
heard a
few things in the past. Are we just talking about accelerated
stalls? Are
we talking about a normal spin transitioning to a flat spin? So far I
haven't seen anything unexpected.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=14117#14117




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rmfitz(at)direcway.com
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PostPosted: Wed Feb 22, 2006 12:37 pm    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter,

If you had been paying attention you would know that all you need is a
flight suit, parachute, 2nd class medical, commercial rating and RPA
membership to fly your 52 blissfully through the wild blue yonder with
out ruffling your silk scarf .

OTOH ; This is a Yak52, not a 152. We have lost some very good pilots
in these planes.
Get some aerobatic dual. Period.
I highly recommend Sergei Boriak

bob
52BN
Scooter wrote:

Quote:


Sorry but this has nothing at all to do with flight suits. In the interests of safety (and keeping Scooter alive) I'd like to hear any war stories about Yak 52's doing unexpected things. Seems like I've heard a few things in the past. Are we just talking about accelerated stalls? Are we talking about a normal spin transitioning to a flat spin? So far I haven't seen anything unexpected.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=14117#14117










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Scooter



Joined: 10 Jan 2006
Posts: 155

PostPosted: Wed Feb 22, 2006 1:07 pm    Post subject: Re: Yak 52 Bad Habits? Reply with quote

I really do appreciate the concern for Scooters welfare. I'll see if I can find a russian guy to sit in my back seat sometime.

I've never done aerobatics in a 152 Aerobat but I enjoyed flying the T34. That's a great airplane.

I agree the yak does give plenty of warning before stalling. it also seems to behave very well in the spin both upright and inverted. I've done just about everything else with it. Doesn't do aerobatics like a Pitts but I wouldn't expect it to. it's a fun airplane.


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PostPosted: Wed Feb 22, 2006 1:58 pm    Post subject: Yak 52 Bad Habits? Reply with quote

It sooo kicks a Pitts butt.  I have a room full of trophies gotten with mine.  Flew her at the 1998 U.S.Nationals and kicked Pitts butts all over Dennison.  In Intermediate for the record.  One of the pilots was a U.S. akro instructor of mine in his Pitts S1-T.
Jumped a couple of your boys playing Aerial Combat Zone, (in my old box) - or whatever in T34-Bs - trust me they can't hang with the Yak in the hands of a Soviet Bloc trained pilot (Ukraine).
 
There, lets get it started again...bring on the 'Changs...oh, yeah.
Respectfully, rick

Quote:
>> yakk52(at)verizon.net 2/22/2006 2:07:11 PM >>>

--> Yak-List message posted by: "Scooter" <yakk52(at)verizon.net>

I really do appreciate the concern for Scooters welfare.  I'll see if I can find a russian guy to sit in my back seat sometime.

I've never done aerobatics in a 152 Aerobat but I enjoyed flying the T34.  That's a great airplane.

I agree the yak does give plenty of warning before stalling.  it also seems to behave very well in the spin both upright and inverted.  I've done just about everything else with it.  Doesn't do aerobatics like a Pitts but I wouldn't expect it to.  it's a fun airplane.


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PostPosted: Wed Feb 22, 2006 2:57 pm    Post subject: Yak 52 Bad Habits? Reply with quote

Is that line I hear singing off the reel?
Doc
Quote:
[Original Message]
From: Scooter <yakk52(at)verizon.net>
To: <yak-list(at)matronics.com>
Date: 2/22/2006 3:16:20 PM
Subject: Re: Yak 52 Bad Habits?



I really do appreciate the concern for Scooters welfare. I'll see if I
can find a russian guy to sit in my back seat sometime.

Quote:

I've never done aerobatics in a 152 Aerobat but I enjoyed flying the T34.
That's a great airplane.

Quote:

I agree the yak does give plenty of warning before stalling. it also
seems to behave very well in the spin both upright and inverted. I've done

just about everything else with it. Doesn't do aerobatics like a Pitts but
I wouldn't expect it to. it's a fun airplane.
Quote:


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=14195#14195








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brian



Joined: 02 Jan 2006
Posts: 643
Location: Sacramento, California, USA

PostPosted: Wed Feb 22, 2006 7:47 pm    Post subject: Yak 52 Bad Habits? Reply with quote

Bob Fitzpatrick wrote:

Quote:
If you had been paying attention you would know that all you need is a
flight suit, parachute, 2nd class medical, commercial rating and RPA
membership to fly your 52 blissfully through the wild blue yonder with
out ruffling your silk scarf .

OTOH ; This is a Yak52, not a 152. We have lost some very good pilots
in these planes.

That is mostly a function of people doing things they weren't trained to do.

Quote:
Get some aerobatic dual. Period.

I would not hesitate to teach my kids to fly in a Yak-52 and then turn
them loose on solo day.

Of course we would explore the stall regime pretty carefully beforehand.

OTOH, I do think the CJ6A is a better primary trainer.

--
Brian Lloyd 361 Catterline Way
brian-yak at lloyd dot com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)

I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery


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I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery
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PostPosted: Thu Feb 23, 2006 12:50 am    Post subject: Yak 52 Bad Habits? Reply with quote

Quote:
Well, nico timv told me to watch for the snap on a shallow down line where the stick has been unloaded to about 2/3rd fwd and near triple gauge. The gravitational pull and the rotation were in balance and recover input had no effect, rotation was fast and held fast by the gravity pull. I think he said many turns from 3000ft and recovered at 700.  Flat spin (power full, right rudder, left aileron unloaded then cut power it will take up to 4.5 turns to stop. Correct recover is full power and in spin aileron. I had one owner showing me a loop and did negative snap at top by unloading with a push. Another one is stall on landing but 10ft up! I’ve had 2 customers do that and scrape the wing tip. BTW, no one picked up on my question.Who has been saved by a NOMEX SUIT/ Or knows someone etc. 
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PostPosted: Thu Feb 23, 2006 9:36 am    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter, you ask about bad habits (which implies you are new to the Yak52) but then say you doing inverted spins which implies you are experienced with aeros.
 
So a cautionary word may be in order - in case you start stepping up the range of aerobatics you flying before getting Serge or whoever to fly with you and provide type specific info:
 
Get the dual type instruction before playing with any advanced spins and ideally even before playing with verticals (as per DOSAAF procedure)
 
The Yak52 takes a long time with resultant altitude loss to get out of a flat spin.  You can't punch it out.  Some (2 I have flown so far) will not recover using the recomended methods and anti-spin inputs.  This from either a flat spin to the right or an accelerated aggravated spin to left. (outspin aileron and stick forward).  On the one aerie we dropped over 3000ft after initiating recovery with no signs of recovery.  She really winds up as well and some people find this disorienting and may have difficulty thinking about which anti-spin inputs to use.  Compounding this is the time and number of revolutions required before "stopping" the spin, I think some people have after putting in the correct anti-spin inputs decided they did the wrong thing and THEN do the wrong thing.  The stick and rudder forces are also quite high and you might think you have them to the stops when you don't, and you may not recover.  Also must check rigging for correct travel before playing with these.  During recovery you also never stop rolling so may miss the point where the spin stops (but not the rotation) and do crossover into inverted spin.
 
The Yak is great and has no bad habits in terms of departure or conventional spins.  But flat and accelerated spins need some prior training, forethought and lots of altitude.
 
Bottom line:  Do not play with these without excellent dual first.
 

Jorgen
 
 
 


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Scooter



Joined: 10 Jan 2006
Posts: 155

PostPosted: Thu Feb 23, 2006 9:59 am    Post subject: Re: Yak 52 Bad Habits? Reply with quote

i was afraid i would get this kind of cautionary response. i won't mention aerobatics again... hey, let's talk about flight suits! Smile

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PostPosted: Thu Feb 23, 2006 10:14 am    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter,
What's the problem with you. You asked for advice and that is what you got,
If you choose to not take the advice go ahead have a ball. It sounds
cautionary because that is exactly what it is. Once or twice a year I deal
with the fact that friends are no longer around. I am not sure what your
background is but personally I don't like to see anyone end up as a big
smoking hole in the ground, and Tom Johnson certainly does not like it
because it pushes the premiums up for the rest of us.

All the advice you have been given is based on years of experience with
these aircraft and I think that the posts on this subject are, and this is
rare for this list, to the point and informative. I would not try and tell
you how to fly that is up to you. You asked and people were kind enough to
respond. If you don't like the answer don't bitch about it.

Gus

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Scooter



Joined: 10 Jan 2006
Posts: 155

PostPosted: Thu Feb 23, 2006 10:20 am    Post subject: Re: Yak 52 Bad Habits? Reply with quote

gus. i put a smiley my post. chill out. scooter doesn't fight over the internet - only in person and properly attired.
[quote="gus.fraser(at)gs.com"]Scooter,
What's the problem with you. You asked for advice and that is what you got,


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PostPosted: Thu Feb 23, 2006 10:27 am    Post subject: Yak 52 Bad Habits? Reply with quote

Sorry missed the smiley

Gus

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Barry Hancock



Joined: 22 Feb 2006
Posts: 53
Location: Chino, CA

PostPosted: Thu Feb 23, 2006 12:35 pm    Post subject: Re: Yak 52 Bad Habits? Reply with quote

Gang,

The -52, just like any other high performance plane, is to be respected. A little over two years ago I had the opportunity to spend some time in Tom Johnson's -52 (he now has a -50) getting some advanced instruction. I posted my experience on the Yak-list...and may be useful in this discussion.

++++++++++++++++++++++++++

DISCLAIMER, this is for entertainment only. It is in no way intended as
instruction or and endorsement to do these maneuvers on your own.

So, your humble correspondent finally got to fly a Yak-52, and was left
scratching his head as to what all the fuss is about....

"That thing is deadly in a spin"
"Lots of good pilots have died in that airplane"
and my personal favorite,
"It will kill you if you're not paying attention"

These are all things I've heard or read when it came to the Yak-52. For
two years now, my interest has been piqued by all this talk and
suggestion that the Yak-52 is a handful of airplane. This seems a harsh
contradiction to it's purpose...a primary aerobatic/military trainer.

About 3 weeks ago, Roger Baker included me in an email that gave the
times and dates of upcoming aerobatic training from some Russian dude
imported for a couple of weeks. I figured to fly with him would be an
awesome opportunity to see this Blood Thirsty Russian Beast put through
it's paces, and stand a chance of not letting it kill me. So, I called
Roger - whom I met at All Red Star last year and have trying to get
together ever since - and wondered out loud if there was anyone in the
area that would let me fly their -52. Roger graciously offered to give
me a front seat checkout in one of his Yak Flying Club airplanes based
out of Palomar, but a member needed to be in the airplane at all times
for insurance reasons (we'll get to that irony in a second). I figured
flying acro sitting in somebody's lap wasn't an option, so I asked if
anyone else was coming that might put me on their insurance for the
weekend. I found the PERFECT guy! Of all people, Tom Johnson of Cannon
Aviation Insurance was coming down! Well, Tom and I have become
friends over the past couple of years and I figured since I didn't have
a claim on record, he just might let me fly his Yellow Yak. Smile Sure
'nough, Tom was as gracious as Roger....I was in!

So after a front seat checkout with Roger last Saturday. I drove the 80
miles to Ramona on Tuesday morning to fly the Yellow Yak with the
Russian dude. Turns out this dude is more than just a dude. He's Yuri
Yeltsov, head of the DOSAAF in Kazakhstan, with about, oh, a bazillion
hours of acro instructing in the -52. Vladimir Yastremski is a long
time friend of Yuri's and he and Roger arranged for his visit.

The one potential pitfall in all of this is the language barrier...but I
soon appreciated that there are two international languages, the other
one is aviation! During the preflight's and debrief's Vladimir stood by
the ready for any necessary interpretation, which was seldom needed
unless it was a technical question or discussion of the fine points.
Though his english was limited, phrases like "more push," "easy push,"
"left pedal," "right stick" and "Nyet, you idiot!" were very effective.
OK, he never called me an idiot...to my knowledge, anyway. Smile Quite to
the contrary, he was always courteous and his reserved demeanor inspired
confidence in even a neophyte Yak driver (0 hours PIC, until last
Saturday) like me.

OK, Barry, enough window dressing... Right. I flew three times with
Yuri. The first hop consisted of the basic aerobatic maneuvers: rolls,
slow rolls, loop, Immelmans, Hammerheads. As Yuri would say, "No
problem? No problem." Occasionally, he would ask me "you normal?"....I
refrained from telling him about my latest psychotherapy session, and
instead just nodded. After awhile, my body started concurring with my
therapist's analysis of my mental state and we headed for home. On the
ground I learned why I was dishing out the last part of my slow rolls
(not enough nose high when inverted), and that I was very aggressive
with the stick...it brought a smile to Yuri's eyes when he told me
that. I guess there's hope for me yet.

With 18 hours to shake the aerobatic fuzz out of my skull that had not
seen more than 2 G's in the last six months, I was back on Wednesday for
a double dose. The first session was snap rolls, point rolls, spins,
and flat upright spins. All went well, except my aerobatic tolerance
was deteriorating after about 15 mintues and it was a real fight, but I
kept going. Anyway, after my head hitting the canopy about 4 times, I
finally got the hang of the snap roll. Point rolls were rewarding, and
then the moment that I had been waiting for arrived. Spins.

The first spins we did were just the garden variety, power off, upright
spins. No issues there. I did notice, interestingly enough, that the
Yak-52 spin recovery is not as quick as the CJ's. After 3 or 4
evolutions, though, I had compensated and we went to the flat, upright
spin. "First one, I do," came over the intercom. "First, normal entry,
zen stick left full, and power full." As we began to accelerate and the
world went whizzing past like a teacup ride with 3 body builders, I was
reminded of that oh so intellectual line from the movie Fast Times at
Ridgemont high when Spicolli says, "Ah-ah-ah-suh-uh-mmm!" Next thing I
know we had done 5 revolutions and recovered by 6 1/2. "Again, dis time
from Hammerhead," Yuri said. "I do, you follow"...uh, OK, "no problem?
No problem." So away we went again, with Yuri counting rotations and me
just sitting there with this big stuff eatin' grin on my face. This is
FUN!!!! My still unaccustomed to acro head was feeling a little
topsy-turvy, so we headed for the barn.

I was a little worried I wouldn't make it past the first round of this
final bout with the -52 as my brain was still sloshing about in my head
a bit. Hopefully the Cannon Aviation Insurance sponsored Excedrin would
do the trick. This time, it was loops with aileron rolls at the top,
Avalanches (loop with a snap at the top), upset recovery training "I go
in, you get out"...he was talking about the maneuver, not the
airplane...I don't think, vertical rolls, and more spins "dis time, you
do, I watch." Well, if I'm not carrying the left over bag buy then,
sure. As it turns out I got stronger as this flight went on...I guess
my brain was finally catching up with my eyes. Anyway, the two areas I
want to mention here are the upset recovery - 60 degrees of bank, and
exceed critical AoA. As we departed the plane would head towards
inverted. "Now you go!", said Yuri from the back, and I aggressively
stomped on top rudder and pushed the stick opposite the roll. The next
thing I knew we were straight and level. We did this from various
attitudes and in the end the result was the same....very predictable and
quick recovery.

Now it was finally time for "you do, I watch." So as we climbed up to
5000 AGL, Yuri went through the flat, upright spin procedure with me.
"Normal spin begin right, zen stick left full, and power full.
Recover...power off, off, stick forward right, left pedal full, wait for
stop spin, zen recover." Sure, Yuri, no problem, just like you did it,
right?

OK, crap, here we go.......normal right spin entry, stick full
left, power full, and....yeeeehaaaw! By this point I hear Yuri
"...sree, forh, five!" Uh, stick right forw...grrrrr, get over
there!..forward, anti-spin rudder (left), and "Power! Power off!" oh,
yeah, that helps! A little sloppy on my part, but Yuri stayed off the
controls and we recovered in reasonable fashion. "Again?!", I ask.
"OK," Mr. DOSAAF says, chuckling under his breath. Back up to 6000 MSL
again, and....wheeeeee! This time I'm actually keeping up with the spin
count, remember to get the power out, and she just happily recovers.
One more for posterity...Yuri must have been thinking "these crazy
Americans!"...and we went home. A nice overhead with a greaser capped
off a great flight and two eye opening, if not headache producing, days
of flying.

So with the pictures taken, the heartfelt handshakes exchanged, and
logbook signed, I was left with the four wheel solitude of my Ford F-150
to reflect on a very eye opening and confidence inspiring experience.
As Roger Baker so eloquently puts it, the Yak-52 "has a flair for the
dramatic, but behaves just wonderfully." I agree. I found the Yak to
be an extremely enjoyable aircraft for it's purpose. It will do acro
all day long and never complain. It is a capable performer in the hands
of an equally capable pilot, but also is nice enough to encourage you to
be better if you're not as good as a guy like Yuri. I found no bad
habits, no uncomfortable tendencies, and in the end, a totally
predictable airplane.

I also see how guys get killed in these things. The stick forces to
recover from the upright flat spin were significant. I'm a 6'2'', 200
lb., guy who hits the gym a couple days a week, and I thought Yuri was
fighting me on the stick the first time I tried to get it out of the
bottom left corner...it was just the airplane fighting me. I managed to
move the stick out of the corner with one arm but it took some effort.
Also, Yuri said that if you leave the aileron out of spin (i.e. left of
center in a right spin), even a touch, the plane will stay in the spin.
So yes, if you don't have proper type specific training and/or panic
when you get into an unexpected accelerated spin, I could see ending up
in a force on force battle with Mother Earth. But it seems, like with
most airplanes, the myth far supersedes reality.

The Yak-52 is a great airplane and does what it was designed to do just
about as well as anything out there. Spins? Well, it certainly
commands respect, but with the proper training, like Yuri says, "No
problem? No problem."


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Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com
www.cj6.com
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Scooter



Joined: 10 Jan 2006
Posts: 155

PostPosted: Thu Feb 23, 2006 2:00 pm    Post subject: Re: Yak 52 Bad Habits? Reply with quote

that was great. here's another good one. i especially like the quote, "You like play Horsey horsey eh?"

http://www.skytrace.co.uk/jack.html


barry wrote:
Gang,


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viperdoc(at)mindspring.co
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PostPosted: Thu Feb 23, 2006 2:35 pm    Post subject: Yak 52 Bad Habits? Reply with quote

Scooter,
Like I said..tremendous waste of energy and you are nothing more than an
easy target at that point.
Doc
Quote:
[Original Message]
From: Scooter <yakk52(at)verizon.net>
To: <yak-list(at)matronics.com>
Date: 2/23/2006 4:06:02 PM
Subject: Re: Yak 52 Bad Habits?



that was great. here's another good one. i especially like the quote,
"You like play Horsey horsey eh?"

Quote:

http://www.skytrace.co.uk/jack.html

barry wrote:
> Gang,
>

Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=14455#14455








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mark.j(at)yakuk.com
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PostPosted: Fri Feb 24, 2006 12:46 am    Post subject: Yak 52 Bad Habits? Reply with quote

It seams we have come to the conclusion the YAK 52 is a sleeping bear but poke it with a sharp stick and it gets angry :>)))) <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
 
BTW, I have been told that race drivers NOMEX suits are up to 10 layers thick. Soooo hot after 30 mins ACM you would be sweating like you run 10 miles in <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />Florida in July.  Now then, those chicks u wanna impress would not be impressed at all with the stench :>)) So pretty boys just take a fresh well pressed suit (any make) from the cupboard, slap on the appropriate Velcro patches and go enjoy life. Oh, you still need a squirt of deodorant at the end of the day for that bar talk on how you shot down “hitman” Assuming the challenge is made for the east coast boys to meet the west coast boys for a days ACM in MS. (any chicks there?) (what a load of crap I talk, just stoking the fire, cya !!)


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