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HeliProz . ZoomsHobbies . HeliHobby

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Aerobatic FAI F3C Contest > F3C autorotation 90deg turns??
 
 
w.pasman
Elite Veteran
Location: Netherlands

The F3C 2006 has in the B schedule a figure "autoritation with two 90 deg turns".
You are supposed to come in for landing over the line through the flags.

Now it seems to me that you will fly out of the flight window if you do this maneuver
07-20-2005 Over year old.
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Hoagie1
Veteran
Location: Redmond, WA

remember that you also have to shut off the engine (no idle) for the auto as well!
07-20-2005 Over year old.
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w.pasman
Elite Veteran
Location: Netherlands

Thanks. Yes I know but that's not what I'm asking...
07-20-2005 Over year old.
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mrNoodles
rrProfessor
Location: Borlänge, Sweden

New helipad desgin. The flags are in a straight line. Look below.

B10. AUTOROTATION WITH TWO 90º TURNS - DOWNWIND/UPWIND
Model aircraft flies at a minimum altitude of 20 m. Manoeuvre begins when model aircraft crosses an
imaginary plane that extends vertically upward from a line drawn from the centre judge out through the
helipad. Model aircraft must be in the autorotation state when it cuts this plane, the engine must be off at
this point and the model aircraft must be descending. The first 90 degree turn must be made after the
model aircraft has made 1/3 of the total descent. After this turn the model aircraft must fly straight before
the next turn is made after the model aircraft has made 2/3 of the descent. The model aircraft then flies
straight down to the helipad. Each leg of the manoeuvre must be a minimum of 10m in length. The
descent rate must be constant from start to a point just before touchdown on the helipad. The flight path
of the model aircraft must appear as an open square when viewed from above, starting at the vertical
plane and ending at a line drawn from the centre judge through the helipad.
Scoring criteria:
Landing:
Inside 1 metre circle = Maximum 10 points.
Inside 3 metre circle = Maximum 8 points.
Outside 3 metre circle = Maximum 6 points.

Here´s a pdf showing the 'new' helipad.
07-20-2005 Over year old.
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ErichF
Key Veteran
Location: Odessa, FL 33556 (Tampa Area)

18 inch Flags on the approach lines?

I could see some folks getting PO'd after whacking into them flags on a bad auto. 1/2 meter high, that's like 18 Inches... What happened to 6 inch cones, that won't get hit by rotors?

I would assume it's CD's descretion whether to use flags or cones. I would prefer to come in over a set of short cones

But then again, I suck enough to have to worry about such things


Erich
07-20-2005 Over year old.
 
 
w.pasman
Elite Veteran
Location: Netherlands

Quote 
New helipad desgin. The flags are in a straight line. Look below.


Yes I know

Quote 
Each leg of the manoeuvre must be a minimum of 10m in length.


Yes. Let's say we make it 40 meters - that's more than the requested 10 meters.

Now please imagine the LAST leg of the maneuver on top of the helipad design that you linked to.

Check against the 120 degree flight window

Conclusion?
07-20-2005 Over year old.
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GM1
Elite Veteran
Location: Tallahassee, Florida US

Window

Flight window applies only for aerobatic maneuvers. Auto does not apply. Height of cones/flags is specified in F3C regs and is NOT a CD option. New F3C layout (2006) is now circular with only 2 flags/cones. Much easier to work with. Looks like a target.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.
07-20-2005 Over year old.
 
 
ErichF
Key Veteran
Location: Odessa, FL 33556 (Tampa Area)

FAI Clinic

Gordie,

I'm looking at getting an X-Spec soon, and want to setup for and practice Class II. I think I'm going to try the NATs next year.

You guys up there going to have that FAI clinic again next year? Seems it would be doubly important, what with the new regs coming out.

Now seems to be a great time to get into FAI. With the rules/manuevers changes, everyone is on a clean slate again. I won't be competing with people that have been flying the sequences for the past five years. I have been active in aerobatics contests, in IMAC (planks, big ones), and love the high you get after a good round.

After I get the X-Spec built, I may plan a weekend trip up to TLH to get some pointers and critiques from you guys. I may even try to beg, plead, borrow and steal from my club to host a contest. We'll see.

Erich
07-20-2005 Over year old.
 
 
GM1
Elite Veteran
Location: Tallahassee, Florida US

Pointers

You are certainly welcome to come to Tallahassee to fly with us any time BUT you have excellent help much closer to home. Nob Muraki and Rolando Perez are in Brandon and are both very good F3Cers. Nob was 6th in FAI at the NATS and Rolando was 10th. That's pretty tall cotton as we say in the South. They are great guys to work with also.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.
07-20-2005 Over year old.
 
 
w.pasman
Elite Veteran
Location: Netherlands

GM1


Quote 
Flight window applies only for aerobatic maneuvers. Auto does not apply.


Thanks. Is that info. Is that in the F3C manual?

ErichF
Quote 
Gordie I'm looking at getting an X-Spec soon, and want to setup for and practice Class II. I think I'm going to try the NATs next year.


Maybe you can do a PM next time, instead of going off-topic in this thread?
07-21-2005 Over year old.
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GM1
Elite Veteran
Location: Tallahassee, Florida US

120 degree window.

The 120 degree window was put in place to keep maneuvers a reasonable size as the two rolls and roll reversal had a tendency to stretch out and be difficult to score. The window is for use with the entry and exit of a maneuver and was never intended to come into play with the actual maneuver itself. The auto with two 90 degree turns would probably not itself fit in the window but the entry and exit would and thus the window doesn't come into play.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.
07-21-2005 Over year old.
 
 
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Aerobatic FAI F3C Contest > F3C autorotation 90deg turns??
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