Today's Message Index:
----------------------
1. 12:49 AM - Yak-52 Max Altitude (Mike Beresford)
2. 02:08 AM - Re: Yak-52 Max Altitude (Richard Goode)
3. 02:28 AM - Re: Yak-52 Max Altitude (Jan Mevis)
4. 02:54 AM - Re: Yak-52 Max Altitude (Etienne Verhellen)
5. 03:10 AM - Re: Re: Yak-52 Max Altitude (Jan Mevis)
6. 04:00 AM - Re: Re: Yak-52 Max Altitude (Al Pickering)
7. 04:23 AM - Re: Re: Hard Starting CJ (A. Dennis Savarese)
8. 08:14 AM - Re: Re: Hard Starting CJ (doug sapp)
9. 08:25 AM - Re: Re: Hard Starting CJ (A. Dennis Savarese)
10. 11:31 AM - Housai Replacement Propellor (glipaz)
11. 11:37 AM - Re: Re: Yak-52 Max Altitude (Jan Mevis)
12. 02:18 PM - Re: Yak-52 Max Altitude (Dave Jester)
13. 03:01 PM - Re: Yak-52 Max Altitude (Jon Blake)
14. 07:10 PM - WTB: CJ-6 (Steve Stires)
15. 10:26 PM - Re: Yak-52 Max Altitude (Jan Mevis)
16. 10:45 PM - Re: Yak-52 Max Altitude (Richard Goode)
17. 11:15 PM - Re: Yak-52 Max Altitude (Jan Mevis)
Message 1
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| Subject: | Yak-52 Max Altitude |
Hi all
I've seen a maximum operating altitude for the Yak-52 quoted as 4,000 m (13,000
ft). Obviously this requires pilot oxygen, but is the altitude limitation due
to operational procedures, or a technical limitation on the aircraft?
Someone suggested to me that the fuel mixture compensation may run out of travel
above the altitude limit. Anyone have some insight into the behaviour of the
engine above 13,000 ft?
Blue skiesMike
Message 2
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| Subject: | Yak-52 Max Altitude |
One doesn't need oxygen for a short trip beyond 13,000 feet =93
pilots in the First World War were patrolling at 20,000 feet!
To revert to Yaks, a standard 52 is running out of breath at 13,000
feet, but the real reason is that the Russians don't extend the manuals
for an aircraft without oxygen beyond 4000 m. However, nothing to do
with the engine capability =93 with a light 18 T; 400 hp; MT prop
I was once still climbing (albeit very slowly) at 18,000 feet.
Richard Goode
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +94 (0) 81 241 5137 (Sri Lanka)
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
I=99m currently in Sri Lanka but this Mail is working,and my local
phone is +94 779 132 160.
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Mike Beresford
Sent: Thursday, August 18, 2016 1:19 PM
Subject: Yak-List: Yak-52 Max Altitude
Hi all
I've seen a maximum operating altitude for the Yak-52 quoted as 4,000 m
(13,000 ft). Obviously this requires pilot oxygen, but is the altitude
limitation due to operational procedures, or a technical limitation on
the aircraft?
Someone suggested to me that the fuel mixture compensation may run out
of travel above the altitude limit. Anyone have some insight into the
behaviour of the engine above 13,000 ft?
Blue skies
Mike
--
This message has been scanned for viruses and
dangerous content by <http://www.mailscanner.info/> MailScanner, and is
believed to be clean.
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| Subject: | Re: Yak-52 Max Altitude |
I always asked myself if they were really up that high in WW I.
Difficult to verify of course. But with those engines?
As you state it Richard, with an M14PF, and an MT prop, you climb very
slowly at 18000 feet.
So how did they do it, the aces in WW I?
Just wondering,
Jan
From: <owner-yak-list-server@matronics.com> on behalf of Richard Goode
<richard.goode@russianaeros.com>
Subject: RE: Yak-List: Yak-52 Max Altitude
One doesn't need oxygen for a short trip beyond 13,000 feet =AD pilots in the
First World War were patrolling at 20,000 feet!
To revert to Yaks, a standard 52 is running out of breath at 13,000 feet,
but the real reason is that the Russians don't extend the manuals for an
aircraft without oxygen beyond 4000 m. However, nothing to do with the
engine capability =AD with a light 18 T; 400 hp; MT prop I was once still
climbing (albeit very slowly) at 18,000 feet.
Richard Goode
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +94 (0) 81 241 5137 (Sri Lanka)
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com <http://www.russianaeros.com>
I=B9m currently in Sri Lanka but this Mail is working,and my local phone is
+94 779 132 160.
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Mike Beresford
Sent: Thursday, August 18, 2016 1:19 PM
Subject: Yak-List: Yak-52 Max Altitude
Hi all
I've seen a maximum operating altitude for the Yak-52 quoted as 4,000 m
(13,000 ft). Obviously this requires pilot oxygen, but is the altitude
limitation due to operational procedures, or a technical limitation on the
aircraft?
Someone suggested to me that the fuel mixture compensation may run out of
travel above the altitude limit. Anyone have some insight into the behaviou
r
of the engine above 13,000 ft?
Blue skies
Mike
--
This message has been scanned for viruses and
dangerous content by MailScanner <http://www.mailscanner.info/> , and is
believed to be clean.
Message 4
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| Subject: | Re: Yak-52 Max Altitude |
Went to FL 130* over the Alps with 'janie' and my wife once ...
For about one hour ... no problem ... just a little bit of ice on the wings climbing
through a small cloud layer ...
Had to go to FL 150* on my way to Portugal from Belgium ... engine kept running
nicely and 'janie' was still climbing ...
https://flic.kr/y/2sP63zU
https://flic.kr/s/aHskAYjMcs
* 13,000 feet and 15,000 feet respectively, Transition Altitudes (!)
lower in Europe than the usual 18,000 feet in the US of A.
Last Sunday in sunny Belgium ...
https://flic.kr/p/L8T5WJ
https://flic.kr/p/L8T6y5
https://flic.kr/p/L51EXz
https://flic.kr/p/L8T5Ly
https://flic.kr/p/L8T64Y
https://flic.kr/p/L8T6gw
https://flic.kr/p/LbKoEX
https://flic.kr/p/L8T6qQ
https://flic.kr/p/KKaj1E
http://youtu.be/S2j84Gj5nt8
Cheers,
Etienne.
http://www.airrace.pro/images/airrace/pilot-bios/bio-etienne-verhellen.jpg
--------
Yak-52 training anywhere - FI(A) Aerobatic Instructor - Specialised Yak-52.
http://www.afors.com/index.php?page=adview&adid=25551&imid=4
To Fly To Serve ...
https://c2.staticflickr.com/4/3677/18982461460_03d628ac44_b.jpg
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=459592#459592
Message 5
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| Subject: | Re: Yak-52 Max Altitude |
Yes, FL130 with the 52 is no problem. But how on earth did they manage to
fly even higher with those planes of WW I ?
On 18/08/16 11:54, "Etienne Verhellen"
<owner-yak-list-server@matronics.com on behalf of janie@yak52.fr> wrote:
>
>Went to FL 130* over the Alps with 'janie' and my wife once ...
>For about one hour ... no problem ... just a little bit of ice on the
>wings climbing through a small cloud layer ...
>
>Had to go to FL 150* on my way to Portugal from Belgium ... engine kept
>running nicely and 'janie' was still climbing ...
>
>https://flic.kr/y/2sP63zU
>https://flic.kr/s/aHskAYjMcs
>
>* 13,000 feet and 15,000 feet respectively, Transition Altitudes (!)
> lower in Europe than the usual 18,000 feet in the US of A.
>
>Last Sunday in sunny Belgium ...
>
>https://flic.kr/p/L8T5WJ
>https://flic.kr/p/L8T6y5
>https://flic.kr/p/L51EXz
>https://flic.kr/p/L8T5Ly
>https://flic.kr/p/L8T64Y
>https://flic.kr/p/L8T6gw
>https://flic.kr/p/LbKoEX
>https://flic.kr/p/L8T6qQ
>
>https://flic.kr/p/KKaj1E
>
>http://youtu.be/S2j84Gj5nt8
>
>Cheers,
>
>Etienne.
>
>http://www.airrace.pro/images/airrace/pilot-bios/bio-etienne-verhellen.jpg
>
>--------
>Yak-52 training anywhere - FI(A) Aerobatic Instructor - Specialised
>Yak-52.
>http://www.afors.com/index.php?page=adview&adid=25551&imid=4
>To Fly To Serve ...
>https://c2.staticflickr.com/4/3677/18982461460_03d628ac44_b.jpg
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=459592#459592
>
>
Message 6
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| Subject: | Re: Yak-52 Max Altitude |
Very low stall speed
Sent from Alspadair
> On 18 Aug 2016, at 20:14, Jan Mevis <jan.mevis@informavia.be> wrote:
>
>
> Yes, FL130 with the 52 is no problem. But how on earth did they manage to
> fly even higher with those planes of WW I ?
>
> On 18/08/16 11:54, "Etienne Verhellen"
> <owner-yak-list-server@matronics.com on behalf of janie@yak52.fr> wrote:
>
>>
>> Went to FL 130* over the Alps with 'janie' and my wife once ...
>> For about one hour ... no problem ... just a little bit of ice on the
>> wings climbing through a small cloud layer ...
>>
>> Had to go to FL 150* on my way to Portugal from Belgium ... engine kept
>> running nicely and 'janie' was still climbing ...
>>
>> https://flic.kr/y/2sP63zU
>> https://flic.kr/s/aHskAYjMcs
>>
>> * 13,000 feet and 15,000 feet respectively, Transition Altitudes (!)
>> lower in Europe than the usual 18,000 feet in the US of A.
>>
>> Last Sunday in sunny Belgium ...
>>
>> https://flic.kr/p/L8T5WJ
>> https://flic.kr/p/L8T6y5
>> https://flic.kr/p/L51EXz
>> https://flic.kr/p/L8T5Ly
>> https://flic.kr/p/L8T64Y
>> https://flic.kr/p/L8T6gw
>> https://flic.kr/p/LbKoEX
>> https://flic.kr/p/L8T6qQ
>>
>> https://flic.kr/p/KKaj1E
>>
>> http://youtu.be/S2j84Gj5nt8
>>
>> Cheers,
>>
>> Etienne.
>>
>> http://www.airrace.pro/images/airrace/pilot-bios/bio-etienne-verhellen.jpg
>>
>> --------
>> Yak-52 training anywhere - FI(A) Aerobatic Instructor - Specialised
>> Yak-52.
>> http://www.afors.com/index.php?page=adview&adid=25551&imid=4
>> To Fly To Serve ...
>> https://c2.staticflickr.com/4/3677/18982461460_03d628ac44_b.jpg
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=459592#459592
>
>
>
>
>
>
>
Message 7
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| Subject: | Re: Hard Starting CJ |
Doug,Do you remember which finger was the longer 3.87mm?=C2- If you can r
eference it by pointing the two rotors up (north), then left or right, that
would be a great help.Thanks so much.Dennis
From: doug sapp <dougsappllc@gmail.com>
To: yak-list@matronics.com
Sent: Wednesday, August 17, 2016 8:34 PM
Subject: Re: Yak-List: Re: Hard Starting CJ
Rotor fingers:One extends 3.87mm out of the porcelain.The other 2.97mm.=C2
-
This is a new unused rotor.
Doug
On Wed, Aug 17, 2016 at 4:41 AM, A. Dennis Savarese <dsavarese0812@bellsout
h.net> wrote:
th.net>
Yes, the finger on the rotor.=C2- I really don't know what the "normal" l
ength is. Maybe Doug Sapp could measure the length of the fingers on a new
rotor and post it to the List for us.
Dennis
A. Dennis Savarese
334-546-8182=C2-(mobile)
www.yak-52.com
Skype - Yakguy1
On 8/17/2016 5:45 AM, JL2A wrote:
Thanks Dennis I'll check it out. When you say 'starting coil finger length'
you mean the finger on the rotor? What is normal & undesirable length?
Hi Doug, yes it's ops normal once started. I suspect fuel primer atomizer a
s I've had this before but will check magneto finger position while I'm at
it.
Read this topic online here:
http://forums.matronics.com/vi ewtopic.php?p=459573#459573
==== ====================
========== =
List" rel="noreferrer" target="_blank">http://www.matronics.com/Navig a
tor?Yak-List
==== ====================
========== =
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
==== ====================
========== =
WIKI -
errer" target="_blank">http://wiki.matronics.com
==== ====================
========== =
b Site -
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contr ibution
==== ====================
========== =
Message 8
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| Subject: | Re: Hard Starting CJ |
Dennis and all,
The CJ rotor has one finger which is embedded in white porcelain, the other
is embedded in the red Bakelite. If finger up, the finger on the left is
the longest @3.87 protruding out of the porcelain.
On Thu, Aug 18, 2016 at 4:22 AM, A. Dennis Savarese <
dsavarese0812@bellsouth.net> wrote:
> Doug,
> Do you remember which finger was the longer 3.87mm? If you can reference
> it by pointing the two rotors up (north), then left or right, that would be
> a great help.
> Thanks so much.
> Dennis
>
>
> ------------------------------
> *From:* doug sapp <dougsappllc@gmail.com>
> *To:* yak-list@matronics.com
> *Sent:* Wednesday, August 17, 2016 8:34 PM
> *Subject:* Re: Yak-List: Re: Hard Starting CJ
>
> Rotor fingers:
> One extends 3.87mm out of the porcelain.
> The other 2.97mm.
>
> This is a new unused rotor.
>
> Doug
>
> On Wed, Aug 17, 2016 at 4:41 AM, A. Dennis Savarese <
> dsavarese0812@bellsouth.net> wrote:
>
> dsavarese0812@bellsouth.net>
>
> Yes, the finger on the rotor. I really don't know what the "normal"
> length is. Maybe Doug Sapp could measure the length of the fingers on a new
> rotor and post it to the List for us.
> Dennis
>
> A. Dennis Savarese
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 8/17/2016 5:45 AM, JL2A wrote:
>
>
> Thanks Dennis I'll check it out. When you say 'starting coil finger
> length' you mean the finger on the rotor? What is normal & undesirable
> length?
>
> Hi Doug, yes it's ops normal once started. I suspect fuel primer atomizer
> as I've had this before but will check magneto finger position while I'm at
> it.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/vi ewtopic.php?p=459573#459573
> <http://forums.matronics.com/viewtopic.php?p=459573#459573>
>
>
> ==== ============================== =
> List" rel="noreferrer" target="_blank">http://www.matronics.com/Navig
> ator?Yak-List
> ==== ============================== =
> FORUMS -
> eferrer" target="_blank">http://forums.matronics.com
> ==== ============================== =
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> errer" target="_blank">http://wiki.matronics.com
> ==== ============================== =
> b Site -
> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/contr ibution
> ==== ============================== =
>
>
Message 9
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| Subject: | Re: Hard Starting CJ |
Thanks Doug.Dennis
From: doug sapp <dougsappllc@gmail.com>
To: yak-list@matronics.com
Sent: Thursday, August 18, 2016 11:13 AM
Subject: Re: Yak-List: Re: Hard Starting CJ
Dennis and all,The CJ rotor has one finger which is embedded in white porce
lain, the other is=C2-embedded=C2-in the red=C2-Bakelite.=C2- If fi
nger up, the finger on the left is the longest @3.87 protruding out of the
porcelain.
On Thu, Aug 18, 2016 at 4:22 AM, A. Dennis Savarese <dsavarese0812@bellsout
h.net> wrote:
Doug,Do you remember which finger was the longer 3.87mm?=C2- If you can r
eference it by pointing the two rotors up (north), then left or right, that
would be a great help.Thanks so much.Dennis
From: doug sapp <dougsappllc@gmail.com>
To: yak-list@matronics.com
Sent: Wednesday, August 17, 2016 8:34 PM
Subject: Re: Yak-List: Re: Hard Starting CJ
Rotor fingers:One extends 3.87mm out of the porcelain.The other 2.97mm.=C2
-
This is a new unused rotor.
Doug
On Wed, Aug 17, 2016 at 4:41 AM, A. Dennis Savarese <dsavarese0812@bellsout
h.net> wrote:
th.net>
Yes, the finger on the rotor.=C2- I really don't know what the "normal" l
ength is. Maybe Doug Sapp could measure the length of the fingers on a new
rotor and post it to the List for us.
Dennis
A. Dennis Savarese
334-546-8182=C2-(mobile)
www.yak-52.com
Skype - Yakguy1
On 8/17/2016 5:45 AM, JL2A wrote:
Thanks Dennis I'll check it out. When you say 'starting coil finger length'
you mean the finger on the rotor? What is normal & undesirable length?
Hi Doug, yes it's ops normal once started. I suspect fuel primer atomizer a
s I've had this before but will check magneto finger position while I'm at
it.
Read this topic online here:
http://forums.matronics.com/vi ewtopic.php?p=459573#459573
==== ====================
========== =
List" rel="noreferrer" target="_blank">http://www. matronics.com/Navig
ator?Yak-List
==== ====================
========== =
FORUMS -
eferrer" target="_blank">http://forums. matronics.com
==== ====================
========== =
WIKI -
errer" target="_blank">http://wiki. matronics.com
==== ====================
========== =
b Site -
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www. matronics.com/contr ibutio
n
==== ====================
========== =
Message 10
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| Subject: | Housai Replacement Propellor |
Wondering if anyone has found a more efficient propeller for the Housai other than
the stock one? Efficient defined as better climb without sacrificing cruise
speed.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=459613#459613
Message 11
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| Subject: | Re: Yak-52 Max Altitude |
Yes, FL130 with the 52 is no problem. But how on earth did they manage to
fly even higher with those planes of WW I ?
On 18/08/16 11:54, "Etienne Verhellen"
<owner-yak-list-server@matronics.com on behalf of janie@yak52.fr> wrote:
>
>Went to FL 130* over the Alps with 'janie' and my wife once ...
>For about one hour ... no problem ... just a little bit of ice on the
>wings climbing through a small cloud layer ...
>
>Had to go to FL 150* on my way to Portugal from Belgium ... engine kept
>running nicely and 'janie' was still climbing ...
>
>https://flic.kr/y/2sP63zU
>https://flic.kr/s/aHskAYjMcs
>
>* 13,000 feet and 15,000 feet respectively, Transition Altitudes (!)
> lower in Europe than the usual 18,000 feet in the US of A.
>
>Last Sunday in sunny Belgium ...
>
>https://flic.kr/p/L8T5WJ
>https://flic.kr/p/L8T6y5
>https://flic.kr/p/L51EXz
>https://flic.kr/p/L8T5Ly
>https://flic.kr/p/L8T64Y
>https://flic.kr/p/L8T6gw
>https://flic.kr/p/LbKoEX
>https://flic.kr/p/L8T6qQ
>
>https://flic.kr/p/KKaj1E
>
>http://youtu.be/S2j84Gj5nt8
>
>Cheers,
>
>Etienne.
>
>http://www.airrace.pro/images/airrace/pilot-bios/bio-etienne-verhellen.jpg
>
>--------
>Yak-52 training anywhere - FI(A) Aerobatic Instructor - Specialised
>Yak-52.
>http://www.afors.com/index.php?page=adview&adid=25551&imid=4
>To Fly To Serve ...
>https://c2.staticflickr.com/4/3677/18982461460_03d628ac44_b.jpg
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=459592#459592
>
>
Message 12
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| Subject: | Re: Yak-52 Max Altitude |
I have been to 14,500 feet in my 52TD Termikas conversion. Sluggish on
the controls that high. Or maybe I was suffering from hypoxia and I was
the one sluggish! It was neat when a regional jet passed me 500 feet
below. :)
On Aug 18, 2016, at 2:48 AM, Mike Beresford <mike_beresford@yahoo.co.uk>
wrote:
> Hi all
>
> I've seen a maximum operating altitude for the Yak-52 quoted as 4,000
m (13,000 ft). Obviously this requires pilot oxygen, but is the altitude
limitation due to operational procedures, or a technical limitation on
the aircraft?
>
> Someone suggested to me that the fuel mixture compensation may run out
of travel above the altitude limit. Anyone have some insight into the
behaviour of the engine above 13,000 ft?
>
> Blue skies
> Mike
Message 13
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| Subject: | Re: Yak-52 Max Altitude |
V2VsbCwgSSd2ZSBoYWQgbXkgc3RvY2ssIDI4NUhQIENKIHRvIDE0LDUwMSBmZWV0IGFuZCBzaGUg
d2FzIHdpbGxpbmcgdG8gZ28gZXZlbiBoaWdoZXIsIGJ1dCBJIGRpZG4ndCB3YW50IHRvIGVtYmFy
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Message 14
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Hi, I am wanting to buy a CJ-6.
Thanks,
Steve
Message 15
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| Subject: | Re: Yak-52 Max Altitude |
So =8A if it takes a long time to get higher than 14500 feet with a Yak or a
CJ, how did the aces in WW I do it with their albatrosses, sopwiths,
nieuports and the like, up to 20000 feet or 6 kilometers?
From: <owner-yak-list-server@matronics.com> on behalf of Jon Blake
<jblake207@comcast.net>
Subject: Re: Yak-List: Yak-52 Max Altitude
Well, I've had my stock, 285HP CJ to 14,501 feet and she was willing to go
even higher, but I didn't want to embarrass the YAK52 I was flying wing
on... JB
Sent from my Verizon Wireless 4G LTE DROID
Dave Jester <wdjester@cox.net> wrote:
I have been to 14,500 feet in my 52TD Termikas conversion. Sluggish on th
e
controls that high. Or maybe I was suffering from hypoxia and I was the on
e
sluggish! It was neat when a regional jet passed me 500 feet below. :)
On Aug 18, 2016, at 2:48 AM, Mike Beresford <mike_beresford@yahoo.co.uk>
wrote:
> Hi all
>
> I've seen a maximum operating altitude for the Yak-52 quoted as 4,000 m
> (13,000 ft). Obviously this requires pilot oxygen, but is the altitude
> limitation due to operational procedures, or a technical limitation on th
e
> aircraft?
>
> Someone suggested to me that the fuel mixture compensation may run out of
> travel above the altitude limit. Anyone have some insight into the behavi
our
> of the engine above 13,000 ft?
>
> Blue skies
> Mike
Message 16
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| Subject: | Yak-52 Max Altitude |
They definitely did! I suspect because the aircraft were so incredibly
light.
Richard Goode
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: 19 August 2016 06:25
Subject: Re: Yak-List: Yak-52 Max Altitude
So . if it takes a long time to get higher than 14500 feet with a Yak or a
CJ, how did the aces in WW I do it with their albatrosses, sopwiths,
nieuports and the like, up to 20000 feet or 6 kilometers?
From: <owner-yak-list-server@matronics.com
<mailto:owner-yak-list-server@matronics.com> > on behalf of Jon Blake
<jblake207@comcast.net <mailto:jblake207@comcast.net> >
<yak-list@matronics.com <mailto:yak-list@matronics.com> >
<yak-list@matronics.com <mailto:yak-list@matronics.com> >
Subject: Re: Yak-List: Yak-52 Max Altitude
Well, I've had my stock, 285HP CJ to 14,501 feet and she was willing to go
even higher, but I didn't want to embarrass the YAK52 I was flying wing
on... JB
Sent from my Verizon Wireless 4G LTE DROID
Dave Jester <wdjester@cox.net <mailto:wdjester@cox.net> > wrote:
I have been to 14,500 feet in my 52TD Termikas conversion. Sluggish on the
controls that high. Or maybe I was suffering from hypoxia and I was the one
sluggish! It was neat when a regional jet passed me 500 feet below. :)
On Aug 18, 2016, at 2:48 AM, Mike Beresford <mike_beresford@yahoo.co.uk
<mailto:mike_beresford@yahoo.co.uk> > wrote:
Hi all
I've seen a maximum operating altitude for the Yak-52 quoted as 4,000 m
(13,000 ft). Obviously this requires pilot oxygen, but is the altitude
limitation due to operational procedures, or a technical limitation on the
aircraft?
Someone suggested to me that the fuel mixture compensation may run out of
travel above the altitude limit. Anyone have some insight into the behaviour
of the engine above 13,000 ft?
Blue skies
Mike
--
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believed to be clean.
Message 17
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| Subject: | Re: Yak-52 Max Altitude |
I confirm having read this in several old books (e.g.the book written in
Gothic German by Lothar von Richthofen, the brother of the Red Baron who wa
s
also a pilot).
They routinely flew at altitudes of 4000 to 5000 meters, according to these
books.
I still find this incredible to believe.
Let=B9s assume that the pilot indeed read this altitude on his altimeter.
Were those early instruments that precise or well calibrated?
It=B9s not very important to know of course, only for academic pleasure.
Jan, Yak 50 F-AZUK
From: <owner-yak-list-server@matronics.com> on behalf of Richard Goode
<richard.goode@russianaeros.com>
Subject: RE: Yak-List: Yak-52 Max Altitude
They definitely did! I suspect because the aircraft were so incredibly
light.
Richard Goode
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: 19 August 2016 06:25
Subject: Re: Yak-List: Yak-52 Max Altitude
So =8A if it takes a long time to get higher than 14500 feet with a Yak or a
CJ, how did the aces in WW I do it with their albatrosses, sopwiths,
nieuports and the like, up to 20000 feet or 6 kilometers?
From: <owner-yak-list-server@matronics.com> on behalf of Jon Blake
<jblake207@comcast.net>
Subject: Re: Yak-List: Yak-52 Max Altitude
Well, I've had my stock, 285HP CJ to 14,501 feet and she was willing to go
even higher, but I didn't want to embarrass the YAK52 I was flying wing
on... JB
Sent from my Verizon Wireless 4G LTE DROID
Dave Jester <wdjester@cox.net> wrote:
I have been to 14,500 feet in my 52TD Termikas conversion. Sluggish on th
e
controls that high. Or maybe I was suffering from hypoxia and I was the on
e
sluggish! It was neat when a regional jet passed me 500 feet below. :)
On Aug 18, 2016, at 2:48 AM, Mike Beresford <mike_beresford@yahoo.co.uk>
wrote:
> Hi all
>
>
>
> I've seen a maximum operating altitude for the Yak-52 quoted as 4,000 m
> (13,000 ft). Obviously this requires pilot oxygen, but is the altitude
> limitation due to operational procedures, or a technical limitation on th
e
> aircraft?
>
>
>
> Someone suggested to me that the fuel mixture compensation may run out of
> travel above the altitude limit. Anyone have some insight into the behavi
our
> of the engine above 13,000 ft?
>
>
>
> Blue skies
>
> Mike
--
This message has been scanned for viruses and
dangerous content by MailScanner <http://www.mailscanner.info/> , and is
believed to be clean.
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