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vLSO Beta release

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GOONIE:
Also thought I would share with the folks on the forum (LSO training material) http://www.volunteers-midway.org/assets/files/3403.pdf

It has some really good gouge on a couple topics we have discussed recently, WoD, Burble, G/S angle for FCLP, and night vs day FCLP. Check out chapters 17-20, good stuff in there  8). pulled a couple excerpts.

WoD and Burble:
17.2.1 Optimum Recovery Headwind.
Recovery headwind (RHW) is the component
of wind over the deck which is parallel to the
landing area centerline. Twenty-five (25) knots
of recovery headwind is considered optimum
for aircraft shipboard recovery.

17.2.2 Burble. Disturbance in the air mass
flow as it moves upward over bow or angle
deck, along the landing area, down at the
ramp and reflecting off the water is unique to
carrier operations and is depicted in Figure
17-1. The resultant airflow aft of the ramp is
termed the burble. The magnitude and
position of the downdraft/updraft aft of the
ramp is a factor of the air mass velocity and
ships forward motion. Carriers with a large
island superstructure produce the most severe
burble.
The burble directly affects an aircraft
approach by causing a sudden increase in lift
in the middle then a decrease in lift in close to
at the ramp. A pilot correcting for more lift in
the middle with a power reduction will need to
anticipate the recorrection needed for the loss
of lift in close. Also, pilot awareness is critical
during lineup corrections while being affected
by the burble. The burble effect is minimized
with optimum recovery headwind.

17.2.3 High Recovery Headwinds
Pilots will have to deal with a more significant
burble located closer to the ramp and be at a
higher stabilized power setting throughout the
approach. There will be greater turbulence in
close and potential for wing drop at the ramp
and beyond. Higher sink rates will develop
from relatively small power corrections,
decreasing the bolter rate but increasing the
chance of early wires. Gust responsive
aircraft will have more problems maintaining
good glideslope parameters. The lineup
parameter will be affected if the pilot and LSO
fixate on glideslope. Finally, attention must be
given the Case I pattern as an earlier than
normal turn in point will be required to avoid
being long in the groove.

18.6.1 Field/Ship Differences. The
glideslope setting used for a FCLP will
normally range from 2-3/4 to 3-1/4 degrees.
At the ship, wind over the deck acts to
decrease aircraft relative closure to the carrier
deck, allowing more time for error detection
and correction, and resulting in an actual
glideslope that the aircraft flies being
shallower than the set basic angle. This
actual glideslope is approximately 3/4 degrees

At the field, without the aid of
that 30 knots wind over the deck, approach
geometry is different. 3.25 degrees will
simulate the actual ship's glidepath, however
with less wind aircraft require lower power
settings to stay on glideslope.

SpazSinbad:
Thanks Goonie. That now old LSO Reference Manual Rev.B had (I thought) disappeared from the internet. Good to have a reference to it again. I'm looking forward to being able to download/view the latest (after a decade) revision which was done around 2011-12. The intro letter is dated 1999 with internal PDF info that it was printed Jan 2001. This manual has been referenced many times over the years on this forum. It used to be downloadable from an old 'SLUDGE' website also as well as available from USN LSO and other sources - it is even SOLD online these days but who would pay for it?  ::) ;D

Victory103:

--- Quote from: pyroperson87 on August 20, 2014, 04:44:10 pm ---Nice work Paddles! How do the comms work IRL? Does the CATCC use the same freq as the LSO, or would one be using CATCC until abeam and then switch over to the LSO freq?

--- End quote ---

During CQ, Marshall will pass one off to App and remain on a signal freq with Tower(Air Boss) and the LSOs. In the Fleet, the final controller and LSO/Twr are on the same freq.

Paddles:
By the way, on numerous real comm recordings you can hear all of them on the same frequency.

pyroperson87:
Paddles, VLSO 0.8.1.0 is fantastic!  I spent several (pronounced by my wife as "too many") hours flying several FCLP bounces and then flying CQ and it was a real blast! The burble behind the ship totally changes the difficulty in the groove, particularly AR. I tagged the ace several times before finally figuring out how/when to anticipate getting underpowered. It's definitely a welcome, and much needed addition to FSX carrier ops.  A few things I noted:

- As mentioned by others, I got LIG every pass. The boat was sailing at 20 knots with 10 knots of added natural wind over the deck. WOD was ~29 on all my graphs.
- The rollback feature didn't work as I expected it to. I trapped, went MIL power, but as soon as the jet slowed from the wires I started rolling forward again just like before. To test it I flew a pass where I trapped without applying power and the rollback feature worked as advertised.

Thanks for all your hard work Paddles! You've definitely created one of the best addons for FSX carrier ops IMHO and I can't wait for all the things you will implement in upcoming releases.

Pyro

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