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Posted by Mark Black
on 5/15/2009, 9:29 am, in reply to "Re: Super Day"
161.242.10.254
Sounds like all found excellent conditions.
It was probably a day where you needed full spoilers and slip to get to pattern altitude.
Did anyone see any cows fly by on the barn door?
Safe Soaring,
Mark
--Previous Message--
: Thanks so much Mark and Doug for your pilot
: observations, they really are indispensible
: for trying to understand and quantify PBL
: convection...and if my brother (Dr.
: Zabinsky) has anything to add (such as 8
: knots steady up Chuck?) please do.
:
: This coming weekend is going to be quite
: "interesting" meteorologically and
: thus aviationally, and since at least a few
: members are interested in research, I will
: go off on a briefing which if I'm feeling my
: usual perverse self might just get a tad
: technical. That will be later today, I have
: to run off to the Flour City right now for
: an AM meeting. Stay tuned.
:
: Ray
:
: --Previous Message--
: Ray:
: I launched in the FLSC Pegasus at 2:30pm
: into phenomenal conditions. Both Chuck and I
: had +6knots lift on the averager. Cloud base
: was about 8500'msl at 3pm and 8900'msl and
: 5pm. In 3 hours I flew nearly 200sm
: shuttling back and forth between Hannas, N
: of Geneseo, Perry Warsaw, a few miles SW of
: Portageville, Hornell and Avoca. I stayed
: above 7k most of the flight and flew under
: long streets with minimal sink. For example,
: at 5pm I set off north from Cohocton at
: 8500' and flew straight to burn off altitude
: before landing. When I reached Geneseo I
: still was at about 8000' and turned back to
: avoid being lifted higher by a large cu.
: The lift still was very strong when landing
: at 5:45. My only regret is that I did not
: fly my own ship with adequate maps, GPS map,
: etc to embark on a more ambitions xc flight.
:
: Mark:
: The total energy probe on the ASK21 is not
: functioning correctly resulting in typical
: stick thermals. We have looked at the
: plumbing and know that the total energy
: probe is connected but have not yet located
: the source of the problem.
:
: Best regards
: Doug
:
: --Previous Message--
: Cy and myself were flying the 21. We got a
: later start than Chuck and Doug, and went N
: to Hannas, then south to Avoca staying
: almost exclusively to the east of the valley
: and above 6K msl.
:
: Cloud base at Dansville at 3:00pm was easily
: 8500ft msl, perhaps even a bit higher. For
: the most part the upper level thermals were
: well organized on an individual basis. Some
: streeting where the lift streets were
: pockets of very strong lift separated by
: mild sink. The sink streets however were
: going down hard.
:
: My sense was that thermals were weaker near
: the tops, but later, further south toward
: Avoca, they were strong, perhaps stronger
: near cloud base. I don't think we had
: trouble staying out of the clouds but I
: think others reported this difficulty.
:
: When we made the turn south at Hannas, it
: seems the conditions N of the field had
: weakened, or cycled perhaps, we had a
: difficult time staying out of the strong
: sink and maintaining 6K msl. Once we got
: back the somewhere east of the field we were
: back to cloud base.
:
: At about 4:00pm, SE looked fabulous. I
: would bet you could have gone all the way to
: Harris Hill without the necessity of
: turning. Once we got to the line of lift
: and clouds just south of Cohocton, we easily
: made it to Avoca, and probably could have
: put on some speed and gone to Corning and
: back in short order. Cloud base was about
: the same 8500ft.
:
: As I would have expected with the NW wind,
: South and East, later in the day, almost as
: far as you could see from 7K, looked
: excellent. With an early enough start, one
: could have possibly made a Gold triangle
: task in the 1-26.
:
: I am not sure if the trouble I was having
: with the thermals around Conesus was the
: thermals, or as Cy suggested, the
: compensation in the 21. I think we were
: seeing some stick indications that was
: causing me some confusion.
:
: In general it was a exceptional day. Lift
: was strong, organized, high, and well
: marked. Sink was punishing and
: intimidating. Streets were somewhat
: organized but confusing at times. But all
: that was necessary was to follow the clouds
: and hurry through the sink.
:
:
: Mark
:
: --Previous Message--
: Mark...glad you were able to stir the pot
: and
: finally get some weekday flying going, and
: kudos to Jim for making it happen and
: reminding everyone that we would be grounded
: most of the time without our unsung heros
: the towpilots.
:
: I would love to have joined you but had a
: cancer seminar in Buffalo to attend.
: Nonetheless I did pay close attention to the
: sky all day. The cloud field extended to
: well north of Batavia, and well west of
: Alden, which is most unusual this time of
: year in view of the "shadows" of
: lakes Erie and especially Ontario since the
: northerly wind component was larger that the
: westerly. A major contributing factor of
: course is the relatively dry spring western
: NY has so far had. Obviously a diamond day,
: speaking of which....
:
: As a student of the atmosphere who still has
: a lot to learn, how about some feedback from
: those who flew that day? Trying to forecast
: PBL convective strength is difficult due to
: the nonlinear interactions, and still
: largely an art which requires input from
: pilot observations, not just model output.
: Now, according to DSV and GVQ ASOS, CCL at 2
: PM was ~ 9,000 and 8,500 respectively (you
: expect it to be higher further from the
: lakes). Can people verify? Did anyone go
: south? Would not be surprised if it went to
: 10,000 at Elmira or Wellsville. How about
: thermal strength? Was it stronger at cloud
: base, or tend to weaken? Also, mean sink
: between thermals, and thermal
: "quality"? Solid as a rock, or
: difficult to center? (suspect the former).
: How easy or difficult to judge whether a
: cloud you went to was forming or
: dissipating? If anyone got low (say,
: 3,000'), how were the thermals there? Any
: tendency for streeting? How late did people
: fly (at 7 PM, flat-bottomed cumuli were
: still clearly visible to the west from the
: UB south campus)? Anybody have any GPS
: traces?
:
: Thanks in advance if anyone has any input!
: PS Did anyone make a badge
: requirement?..hope so.
:
: --Previous Message--
: What a guy that Jim Rizzo, driving all the
: way
: down to Dansville to tow a few of us into
: some fantastic soaring. There is no doubt
: in my mind that Jim loves this sport and
: this club. We perhaps could all learn a
: lesson about empathy from Jim.
:
: Thank you very much Jim.
:
: One humble weekday flyer.....
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