Title: Slayt 1
1Preparing for Confined Area Operations
Mental Preparation Phase
- At every phase of the confined area
operations,you must consider your emergency
procedures,you should have plans.You have no
warranty that you are not going to experince an
engine flame-out! - Before you take off,you should calculate your
choppers performance precisely,ie
MTOGW,Max.Usable Tq., EGTs or TGTs yellow arc,
IGE and OGE capability. - I ensure you,these numbers are so crucial for
your decisions,thus for lives of your crew. - We are paid to make best decisions.
- A pilot is a decision-maker who flies a
contraption which requires so much talent and
nerves like steel.
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2Preparing for Confined Area Landings
Reconnaisance Phase
- I assume,you are unfamiliar with the terrain you
are planning to land. - Wellwe should begin with High
Recce(Reconnaisance) to evaluate landing
zone,WIND,LANDING,GO AROUND direction - ? It is a circle-like pattern above landing
zone.Altitude,diameter,speed are up to pilot,but
they must be at minimums which provide enough
field of vision(450 line of sight recommended)
for pilot to asses the landing zone. - CAUTION Your landing zone is not only your
touchdown point,the whole area under your Recce
pattern should be taken as landing zone.
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3Preparing for Confined Area Landings
- CHECKLIST FOR THE HIGH RECCE
- Ask yourself questions,compare checklist with
terrain during High Recce - LANDING ZONE
- OBSTACLES
- FORCED LANDING AREAS
- WIND
- DIRECTION OF SUN AND SUN GLARE EFFECT
- LANDING AND TAKE-OFF DIRECTIONS
- GO-AROUND DIRECTION AND PATTERN
- DOWNWIND-BASE LEG INTERSECTION POINT
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4Preparing for Confined Area Landings
Depiction of High Recce
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5Preparing for Confined Area Landings
Approach Phase
- After having finished High Recce,turn your
helicopter to downwind base leg intersection
point,execute pre-landing checks. - On base legcheck your landing zone and craft
again. - NOTE If you are familiar with the area,you may
skip High Recce,but let me remind you something
you know very well,wind is a good friend when you
are into it,otherwise it is a real
menace.So,before approach, designate wind
direction precisely.Right-cross wind condition is
not desired.
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6Preparing for Confined Area Landings
Approach Phase
- Now,you are on final
- Follow your touchdown point-angle relation to
initiate the approach. - When commencing approach,at the same time,lets
perform low recce. - ?Carry out low recce untill you land.
- CHECKLIST FOR THE LOW RECCE
- Obstacles(Again ?)
- Surface Condition
- Touchdown Point
- To-hover or To-ground Decision
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7Preparing for Confined Area Landings
Approach Phase
- Choose your touchdown point at the last 1/3
section of the confined area. - Your descend angle should provide 10 clearance
over the highest obstacle between your touchdown
point and your helicopter. - Always keep in your mind to lose transitional
lift just before being over obstacles,or at LAST
over obstacles.If there is someone at the back of
helicopter,remind him to let you know that your
tail rotor passes the obstacles.This would be
very beneficial. - CAUTION IF YOU DECIDE TO GO AROUND,DO IT BEFORE
LOSING YOUR TRANSITIONAL LIFT. IT IS BETTER TO
TRY AGAIN THAN ENDANGERING ANY LIVES.
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8Preparing for Confined Area Landings
Depiction of The Aprooach Profile
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9Preparing for Confined Area Landings
Approach Phase
- Land where you aim to land.
- Keep your direction after entering the confined
area. - Wait untill you are in the ground effect if you
have difficulties with your pedals.(Do not panic
or rush to pull collective,this will only worsen
the situation) - It is essential to finish your approach with
ZERO KT. and on the ground,if the surface
condition is O.K. - Well,we havent finished yet
- Once on the ground,dont feel relaxed.To be sure
that your skids are standing solid to avoid
dynamic rollover ,make smooth cyclic movements
before lowering your collective fully down. -
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10Preparing for Confined Area Take-Offs
Take-Off Phase
- After having landed and known you are secure in
the confined area, Ground Recce must be made for
take-off planning. - CHECKLIST FOR THE GROUND RECCE
- Surface Wind
- Obstacles (Both on the climb path and in the
confined area) - Planning take-off and climb(This includes
performance planning) - Deciding take-off point
- Hovering to take-off point
-
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11Preparing for Confined Area Take-Offs
Take-Off Phase
- If the confined area is not wide enough to
maneuver in,you have to take off where you have
landed(of course,you trust your powerplant(s),
you have enough power) - Choose a take-off direction which enables you
the lowest height of obstacles,this will reduce
your required Tq. - When taking off,check your instruments,at the
same time glance at blade tips and obstacles.
BLADE TIPS MUST BE OVER OBSTACLES ALWAYS
(BTOO),this will help you to understand your
profile allows you enough clearance over
obstacles. - CAUTION On take-off,never let any directional
deviation because you have a tail rotor.This is
likely to happen under windy weather conditions
especially you are at the same level with or over
obstacles.
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12Preparing for Confined Area Take-Offs
Take-Off Phase
- Do not rush to use your collective,be
patient,remember(BTOO),it is just like what we
do during landing,plan to gain your transitional
lift over obstacles. - ?If the confined area is wide enough to maneuver
in,then hover to take-off point. - ?Turns in the confined areas may be perilous,when
maneuvering in, use extreme caution and open
your all receptors,always observe outside and
always BE OUT. - ?After reaching your take-off point,execute your
take-off under the light of principles mentioned
above.
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13Preparing for Confined Area Take-Offs
Depiction of The Take-Off Profile
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14Common Mistakes
- Mistakes are not mistakes if we learn from
them - ?Approaching without Recces(In spite of having
enough time) - Designating wind direction wrongly
- Approaching with inappropiate descend angle(too
high or low) - Not maintaining steady descend angle
- Not planning to land last 1/3 section of the
confined area - Not losing and gaining transitional lift in
proper area - Being unable to maintain descend profile after
passing obstacles and letting sink rate increase
more than desired. - Using collective excessively and quickly,thus
causing RPM loss - Using more than neccessary power,thus flying well
over obstacles
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15I HAVE A REQUEST
Dear Friends I really believe in SYNERGY. So,i
want you to let me know my mistakes about this
Confined Area Presentation. As all pilots,i need
FEEDBACK,CONSIDERATION and EXPERIENCE. Thanks for
your sincere interest and spending time with
me. You may use this Confined Area
Presentation,Id be honored. With My
Respect koryurek in Just Helicopters Mert
ATILGAN Koryurek_at_lycos.com
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