Today's Message Index:
----------------------
1. 06:09 AM - Re: Re: Elusive Slow Roll in Yak 52 (gord)
2. 06:34 AM - OSH room (cjpilot710@aol.com)
3. 08:58 AM - Re: Engine teardown after prop strike Questions (Bitterlich, Mark G CIV NAVAIR, WD)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Elusive Slow Roll in Yak 52 |
>From your post .........."Right now I'm experimenting with various entry
speeds to see which ones allow me to achieve momentary knife edge. I really
don't think the Yak 52 can hold it very long, but that's why I'm asking if
someone can comment on this observation. Perhaps with better technique
holding knife edge is achievable!"
Try knife edge flight. Roll to the left 90 degrees and see how long you can
hold it. Then roll to the right 90 degrees and see hold long you can hold
it. The best side is the one you need at the 270 degree roll point to keep
the nose up completing the roll.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of migjockey
Sent: July-16-13 11:34 PM
Subject: Yak-List: Re: Elusive Slow Roll in Yak 52
Thanks for the reply. Whenever I practice, I try to be at 3,000 AGL or
higher. If I'm focusing on spins, especially inverted ones, I start out at
6,000 AGL. No point giving up that valuable altitude by starting low. It's
analogous to leaving that gas behind when filling up for a long cross
country. I generally roll right in the Yak due to the rotation of the
engine. I recall seeing a video online of someone doing a series of "fast"
slow rolls and it looked like he had it nailed! That nose hardly moved and
went around in relatively small circles just above the horizon. If anyone
knows where I can find that video again, I'd be very appreciative.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=404804#404804
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Well, I have not gotten a reply on who I am supposed to room with at OSH.
I now have a chance for an AC room at the dorms. I want to honor my first
OK because I know that someone may be depending on me to hold up my part.
However I seem to remember an e-mail or comment here on the list that some OSH
housing plans had gone amuck. It might have been one that I had OKed
months ago.
DOES ANYONE OUT THERE KNOW WHERE I, AM TO GO?
(This is so embarrassing)
Jim "Pappy" Goolsby
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Engine teardown after prop strike Questions |
Doc,
Do whatever you want to do. Subject closed.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
M.D.
Sent: Tuesday, July 16, 2013 20:16
Subject: Re: Yak-List: Engine teardown after prop strike Questions
--> <viperdoc@mindspring.com>
Mark,
I agree with your comments but how do you verify that the Idler gears on
the super charger and the accessory spider gears do not have cracked or
chipped teeth. Have to crack the supercharger and accessory case for
that. The nose case is simple. The rest is a pain in the ass. Those
damned air start lines are a real pill to deal with.
Doc
Sent from my iPad
On Jul 15, 2013, at 3:07 PM, "Bitterlich, Mark G CIV NAVAIR, WD"
<mark.bitterlich@navy.mil> wrote:
> --> <mark.bitterlich@navy.mil>
>
> If the timing on the engine is OK, 90% of the stuff you just listed is
unnecessary Doc. However, it is of course your call! That said, my
whole point all along is that every situation differs and that needs to
be taken into consideration. There is no "ONE ANSWER" and we should
stay away from any document that promotes that way of thinking.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Monday, July 15, 2013 13:59
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Engine teardown after prop strike Questions
>
>
> No Mark I am not implying total tear down but to access the accessry
drive shaft, inspect and magnaflux or dye penetrate the gear box and do
a master crank run out your have to take the nose case off the engine.
The baffles will have to be removed so you can take the air start lines
off to seperate the supercharger case from the crank case. The intake
tubes and the exhaust manifold has to be removed. The Oil Sump has to be
removed. You can try to leave the carb on but you will find out that to
pull the supercharger and to seperate the accessory case all of the
attached accessories need to be out of your way. Since you want to look
at the journals on the crank too the cylinders need to come off. No the
rockers do not need to be pulled but to get to the base of the
connecting rod the cylinders need to come off. Now to inspect the
accessory drive shaft and the super charger idler gear the super charger
section and the accessory drive section are going to have to be
seperated.!
T!
> o do that the air lines from the spider (air start distributor) have
to come off. It is a bit ill managable if you do not. You can try to
leave the mags and the compressor on but you will be cursing yourself
for trying that after about an hour. Yes you can do it though.
> I've been there and I have the damned T shirt.
>> From my stand point if I am going that far why not pull the whole
damned thing down so I can see the teeth and dye penetrate all of the
gears in the gear box and the accessory drive along with the crown gear
on the crank shaft, the idler gear that drive the timing cam plate, the
accessory gear for the prop governor.
> Therer is no real simple easy way to do this with out tearing the
engine down. Since mine plopped down on the ground I want to look at the
cylinder base studs, the crank case through studs for the mounting ring
and the cylinder head baffle mounting studs. Not everybody will require
that since 90% of the M-14's flying have a protruding nose wheel to
protect them when the gear collapses.
> There is more to mine than most so that is for sure.
> I am not implying that everyone should have to completely tear one
down. Mine is at the extreme.
> I am not going into how the metal got in the original engine that is
at the began this saga. Yes, the plan is to let Monty take this one
apart because I am tired of tearing M-14's down and putting them back
togather.
> Like farts, man, there are loud oderless and on the other end there
are silent but deadly ones. There is a spectrum across the bell shaped
curve. In this case, since this engine will be pulling my rosey pink
eventually, I want it right.
> By the way there was nothing wrong with this engine after it was
reassembles before it took the grass field slide. Don't really expect
anything to be wrong with it this time either but I need to go through
the exercise.
> Doc
>
> -----Original Message-----
>> From: "Bitterlich, Mark G CIV NAVAIR, WD" <mark.bitterlich@navy.mil>
>> Sent: Jul 15, 2013 10:17 AM
>> To: yak-list@matronics.com
>> Subject: RE: Yak-List: Engine teardown after prop strike Questions
>>
>> --> <mark.bitterlich@navy.mil>
>>
>> Since you checked back in, I will reply to your comment Doc.
>>
>> You take a very interesting point of view regarding your "rosy red
pink". You are suggesting that safety dictates a total tear down for
the purpose of safety.
>>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|