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Yak 55 Flight Test Report

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PS

Joined: 08 Sep 2006
Posts: 84
Location: Texas

Posted: Wed May 09, 2007 7:29 am Post subject: Yak 55 Flight Test Report

Anyone willing to give a description of the flying qualities good and  bad of the Yak 55. I have always been interested in the 55 but have not  found a report. 

  

 Thanks in advance,

  

 Phil Salter



See what's free at AOL.com. 

  [quote][b]

_________________
Phil

bu131(at)swbell.net
Guest

Posted: Wed May 09, 2007 1:49 pm Post subject: Yak 55 Flight Test Report

look into mark/s web page in england, there is a

comparison in the webb from a high time pilot that

flew both the 55 and the su 26 his report is very

favorable and credible. I have a zlin and a 55 and for

the buck there is nothing like the 55, you will love

the radial engine and after you get over the quirks of

inverted spin (I recommend Nick timofeyev in florida)

there is nothing like it at the price (unless you have

the bucks for a sukhoi or big extra). The down side is

the funny air start stuff but you get over it. Lots of

power, easy to fly and land, easy to mantain, messy in

the hangar leaks oil all over, but it pays back on fun

time. The main down is if you want to go unlimited,

they say its not competitive there. I dont plan to be

there so I have fun with mine.

andres

--- PSalter(at)aol.com wrote:



 	  Quote: 	
		   Anyone willing to give a description of the flying

 qualities good and  bad of 

 the Yak 55. I have always been interested in the 55

 but have not  found a 

 report. 

  

 Thanks in advance,

  

 Phil Salter

 

 

 

 ************************************** See what's

 free at http://www.aol.com.

jandhbialek(at)hotmail.co
Guest

Posted: Wed May 09, 2007 11:15 pm Post subject: Yak 55 Flight Test Report

In terms of flying I cannot believe the Yak 55 does not go for a lot more 

money.  I have been favorably impressed with the airplane for acro through 

advanced and have been doing a lot of 1/2 turn, 1 turn and 1 and 1/4 turn 

inverted spins recently without any quirks especially when compared with the 

Pitts which takes "timing" to exit spins on heading.  I have flown single 

seat Pitts, S2As and S2Bs and prefer the Yak 55.  You know exactly what the 

airplane is doing through every manuever including tumbles.  I have never 

felt like the airplane wasn't responsive to what I was trying to do.  I even 

like the stick geometry with the stick being up higher than other aircraft.  

It seems to be more comfortable when flying sequences than other aircraft I 

have flown.  It also does very well throughout the speed range and it allows 

you to get pretty slow, stay flying without dropping a wing and accelerate 

(tractor) out of near zero energy situations relatively easily.  Every other 

airplane I've flown I had some comments about negative traits, but I haven't 

yet had one on the Yak and I've had the airplane 2 years now.

Best Regards,

Jason

Yak 55m

Seattle, WA

 	  Quote: 	
		  From: Dr Andre Katz <bu131(at)swbell.net>

Reply-To: yak-list(at)matronics.com

To: yak-list(at)matronics.com

Subject: Re: Yak 55 Flight Test Report

Date: Wed, 9 May 2007 14:49:03 -0700 (PDT)

look into mark/s web page in england, there is a

comparison in the webb from a high time pilot that

flew both the 55 and the su 26 his report is very

favorable and credible. I have a zlin and a 55 and for

the buck there is nothing like the 55, you will love

the radial engine and after you get over the quirks of

inverted spin (I recommend Nick timofeyev in florida)

there is nothing like it at the price (unless you have

the bucks for a sukhoi or big extra). The down side is

the funny air start stuff but you get over it. Lots of

power, easy to fly and land, easy to mantain, messy in

the hangar leaks oil all over, but it pays back on fun

time. The main down is if you want to go unlimited,

they say its not competitive there. I dont plan to be

there so I have fun with mine.

andres

--- PSalter(at)aol.com wrote:

 > Anyone willing to give a description of the flying

 > qualities good and  bad of

 > the Yak 55. I have always been interested in the 55

 > but have not  found a

 > report.

 >

 > Thanks in advance,

 >

 > Phil Salter

 >

 >

 >

 > ************************************** See what's

 > free at http://www.aol.com.

 >

_________________________________________________________________

Now you can see trouble…before he arrives 

http://newlivehotmail.com/?ocid=TXT_TAGHM_migration_HM_viral_protection_0507

viperdoc(at)mindspring.co
Guest

Posted: Thu May 10, 2007 6:15 am Post subject: Yak 55 Flight Test Report

You gotta love that sexy little 50 too. She will do all you speak too.

Doc



--

mark.bitterlich(at)navy.m
Guest

Posted: Thu May 10, 2007 11:24 am Post subject: Yak 55 Flight Test Report

Not like the 55 Doc.  Better wing for aerobatics.  And you know how much

I adore my 50.  



I think for airshows though that the 50 might be preferred.    



Mark B.  

 



--

viperdoc(at)mindspring.co
Guest

Posted: Thu May 10, 2007 11:44 am Post subject: Yak 55 Flight Test Report

Affirmative! Nothing like her! The 55 is a better acro bird because of it's

wing. But, I still love that 50 and I'm not trying to compete in acro

competition! Just beat'n up on RV's when they'll play.

Doc



--

jorgen.nielsen(at)mweb.co
Guest

Posted: Thu May 10, 2007 12:23 pm Post subject: Yak 55 Flight Test Report

Andres - which Zlin do you fly?  I have been looking at 50LS and a Yak 55 -

would like an opinion on both?  Climb rate, energy management etc?



--

scott-p(at)texas.net
Guest

Posted: Thu May 10, 2007 3:48 pm Post subject: Yak 55 Flight Test Report

I'll second this. The 55M is essentially an Unlimited airplane (OK, not 

a "World-Class" Unlimited airplane, but look at the results Jeff 

Boerboon gets beating up on US Team members in Unlimited in his 55M at 

the Arizona and SoCal contests...) for very little money. It is 

absolutely predictable, snaps easily, spins nicely (I also have not had 

issues with the inverted spin--in fact it is easier to set up an 

inverted spin, and stop on heading than a Pitts or Su-29) and lumps with 

the best of them (OK, it doesn't have the "auto-freestyle" feature of 

the Su-29, but it also has much more docile spin modes). The only real 

downside is that is scrubs energy above +6/-6 G (which means that you 

shouldn't pull +9 or push -7, making the sequence more pleasant and less 

work) and is very draggy. It looses more altitude than a Sukhoi in a 

sequence, but doesn't beat you up. Having said that, I routinely fly 

Advanced sequences at density altitudes between 6000 and 8000 feet 

(field elevation 4100, and it's the summer in the middle of the 

Chiuahuan desert...) and can start at 3500 and finish at/above 1200. I 

have heard the Russians joke that it is a "constant speed airplane" 

since it flies with the same stick forces at 180 kph or 350 kph. In a 

Pitts or even in a Su-29, Advanced is work. In the 55, it is actually a 

lot of fun. This is going to sound weird, but I have been a partner in a 

Su-29 and now own a Yak-55M, and I prefer the Yak to the Sukhoi. The 29 

has better absolute performance (although not by much), but is MUCH 

harder to fly WELL, and is harder on the pilot. Oh, yeah, and it's built 

like a tank.

And best of all, if you ask a 3 year old to draw a picture of an 

airplane, he'll draw a Yak 55. <VBG>

Scott

Jason Bialek wrote:

 	  Quote: 	

 In terms of flying I cannot believe the Yak 55 does not go for a lot 

 more money. I have been favorably impressed with the airplane for acro 

 through advanced and have been doing a lot of 1/2 turn, 1 turn and 1 

 and 1/4 turn inverted spins recently without any quirks especially 

 when compared with the Pitts which takes "timing" to exit spins on 

 heading. I have flown single seat Pitts, S2As and S2Bs and prefer the 

 Yak 55. You know exactly what the airplane is doing through every 

 manuever including tumbles. I have never felt like the airplane wasn't 

 responsive to what I was trying to do. I even like the stick geometry 

 with the stick being up higher than other aircraft. It seems to be 

 more comfortable when flying sequences than other aircraft I have 

 flown. It also does very well throughout the speed range and it allows 

 you to get pretty slow, stay flying without dropping a wing and 

 accelerate (tractor) out of near zero energy situations relatively 

 easily. Every other airplane I've flown I had some comments about 

 negative traits, but I haven't yet had one on the Yak and I've had the 

 airplane 2 years now.

 Best Regards,

 Jason

 Yak 55m

 Seattle, WA

> From: Dr Andre Katz <bu131(at)swbell.net>

> Reply-To: yak-list(at)matronics.com

> To: yak-list(at)matronics.com

> Subject: Re: Yak 55 Flight Test Report

> Date: Wed, 9 May 2007 14:49:03 -0700 (PDT)

>

> 

>

> look into mark/s web page in england, there is a

> comparison in the webb from a high time pilot that

> flew both the 55 and the su 26 his report is very

> favorable and credible. I have a zlin and a 55 and for

> the buck there is nothing like the 55, you will love

> the radial engine and after you get over the quirks of

> inverted spin (I recommend Nick timofeyev in florida)

> there is nothing like it at the price (unless you have

> the bucks for a sukhoi or big extra). The down side is

> the funny air start stuff but you get over it. Lots of

> power, easy to fly and land, easy to mantain, messy in

> the hangar leaks oil all over, but it pays back on fun

> time. The main down is if you want to go unlimited,

> they say its not competitive there. I dont plan to be

> there so I have fun with mine.

> andres

> --- PSalter(at)aol.com wrote:

>

> > Anyone willing to give a description of the flying

> > qualities good and bad of

> > the Yak 55. I have always been interested in the 55

> > but have not found a

> > report.

> >

> > Thanks in advance,

> >

> > Phil Salter

> >

> >

> >

> > ************************************** See what's

> > free at http://www.aol.com.

> >

>

 _________________________________________________________________

 Now you can see trouble…before he arrives 

 http://newlivehotmail.com/?ocid=TXT_TAGHM_migration_HM_viral_protection_0507

bu131(at)swbell.net
Guest

Posted: Thu May 10, 2007 5:59 pm Post subject: Yak 55 Flight Test Report

i have a 50LS climb rate in the zlin is a bit higher than the yak i believe but i fly both without bothering to check the climb rate. i get to 3500 feet my initial acro faster in the zlin probably due to thin wings. energy management is much easier in the zlin due to the fact that you do not lose so much altitude in the down maneuvers as in the yak, i have to start at 4k in the yak and worry a bit about vertical downs since i am a novice in the sport.  i am much more comfortable in the zlin due to the seating position the zlin seat is a marvel the yak is a bitch for a tall person;. the zlin is a gentle pussycat the yak is a tall monster both are really tame when you know them. Landing the zlin is a piece of cake and the speed is slow, the yak wants 180 k on final and it has a pump injector that tends to enrich the mixture when you add power on short final and tends to lag a bit and a couple of unsuspecting guys have hit hard due to the device. i have not changed  the injector nozzle yet but i am prepared for the choke.

  andres



Jorgen Nielsen <jorgen.nielsen(at)mweb.co.za> wrote:

  [quote]--> Yak-List message posted by: "Jorgen Nielsen" 



Andres - which Zlin do you fly? I have been looking at 50LS and a Yak 55 -

would like an opinion on both? Climb rate, energy management etc?



--

mark.bitterlich(at)navy.m
Guest

Posted: Fri May 11, 2007 10:18 am Post subject: Yak 55 Flight Test Report

Are you running the PF engine?  Just curious.  



Mark Bitterlich

 



--

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