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Old Feb 07, 2006, 12:54 AM
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Tampere, Finland
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What is Indoor Pattern/F3P

Indoor Pattern, or F3P, is
PRECISION AEROBATICS IN A VERY RESTRICTED SPACE

The highest International standard is currently the FAI (FEDERATION AERONAUTIQUE INTERNATIONALE) provisional F3P class.

Here is some cuts from

FAI Sporting Code
Section 4 – Aeromodelling
Volume F3A
Radio Control Aerobatics
2006 Edition

5.M.1.1 Definition of a R/C Indoor Aerobatic Power Model Aircraft
Model Aircraft, but not a helicopter, which flies indoors (usually a hall) and is aerodynamically manoeuvred by control surface(s) in attitude, direction, and altitude by a pilot on the ground using radio control.

5.M.1.2 General Characteristics of R/C Indoor Aerobatic Power Model Aircraft
Maximum total weight.......................................500g
...
Power source limitations: Any suitable power source may be utilised except those generating any kind of exhaust emission.
...
Each pilot is permitted one helper during the flight.
...
The manoeuvring area is limited by the floor, ceiling, and walls of the hall, as well as by the safety line (the line that the judges are seated on). A model aircraft must never cross this safety line. ... The recommended dimensions of the hall should be about 40 x 20 metres in length and width and between 8 to 12 metres in height.
...
If a model aircraft is unsafe in the opinion of judges or being flown in an unsafe manner, they may instruct the competitor to land.
...
5.M.1.14 Description of Manoeuvres for Indoor Aerobatic Power Model Aircraft
All manoeuvres are judged on flight path and will start and finish in straight and level upright or inverted flight. Centre manoeuvres will start and finish on the same heading, while turn-around manoeuvres will finish on a heading 180° to entry. When appropriate, entry and exit of centre manoeuvres will be at same altitude. Positioning adjustments in altitude are allowed in turn-around manoeuvres.

All manoeuvres which have more than one loop or part of loops will have the loops or part loops of the same diameter and in case of consecutive loops, in the same place. Similarly all manoeuvres which have more than one continuous roll will have the same roll rate. All manoeuvres which have more than one point roll will have the same roll rate, and points will be of equal duration. All consecutive rolls on a horizontal line will be at the same altitude and heading.

All manoeuvres with rolls, part of rolls or snap rolls, or combination of same, will have lines of equal length before and after the rolls or combinations except in Immelman or Split S families. Snap rolls that are not snap rolls (i.e. barrel rolls) will be scored zero. Spins that are spiral dives or have a snap roll entry will be scored zero. Any violation of above will be reason for downgrading, ...

SCHEDULE F3P-A .................................................. ...K-Factor
A1. Take-off sequence.......................................... .......... 2
A2. Reverse Cuban Eight ................................................. 4
A3.1/4 Roll, Half Circle, 1/4 Roll ........................................ 3
A4. Looping with 1/2 Roll.............................................. .... 4
A5. Turn with horizontal 1/2 Roll ....................................... 3
A6. Triangle Loop with 1/2 Roll ......................................... 5
A7. Half Circle inverted.......................................... ...........2
A8. Rolling Circle with 1/1 integrated Roll ............................ 5
A9. Top Hat with two 1/4 Rolls ......................................... 4
A10. 2/4 Points Roll .................................................. ...... 3
A11. Push-Push-Pull Humpty-Bump..................................... 3
A12. Torque-Roll .................................................. .......... 6
A13. Landing Sequence .................................................. . 2

There are easier classes at national or local levels.

F3P rules also recognize Aeromusicals or Freestyle competition. The judgement criteria are:
1 Flying Style
- Precision of manoeuvres
- Utilisation of flight performance scope
- Variety of manoeuvres
2 Artistic Quality
- Synchronisation to music
- Continuity of Schedule
- Sequence of quiet and dynamic phases
3 Overall Impression
- Utilisation of manoeuvring area
- Positioning
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Old Feb 07, 2006, 01:13 PM
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Jurgen Heilig's Avatar
53859 Niederkassel, Germany
Joined Sep 2000
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Quote:
Originally Posted by perttime
...
SCHEDULE F3P-A .................................................. ...K-Factor
A1. Take-off sequence.......................................... .......... 2
A2. Reverse Cuban Eight ................................................. 4
A3.1/4 Roll, Half Circle, 1/4 Roll ........................................ 3
A4. Looping with 1/2 Roll.............................................. .... 4
A5. Turn with horizontal 1/2 Roll ....................................... 3
A6. Triangle Loop with 1/2 Roll ......................................... 5
A7. Half Circle inverted.......................................... ...........2
A8. Rolling Circle with 1/1 integrated Roll ............................ 5
A9. Top Hat with two 1/4 Rolls ......................................... 4
A10. 2/4 Points Roll .................................................. ...... 3
A11. Push-Push-Pull Humpty-Bump..................................... 3
A12. Torque-Roll .................................................. .......... 6
A13. Landing Sequence .................................................. . 2
...
Strange k-factors.

As the proposal for F3P was submitted by Germany, it should read as follows:

SCHEDULE F3P-A .................................................. ...K-Factor
A1. Take-off sequence.......................................... ........1
A2. Reverse Cuban Eight ...............................................6
A3.1/4 Roll, Half Circle, 1/4 Roll ......................................5
A4. Looping with 1/2 Roll.............................................. ..7
A5. Turn with horizontal 1/2 Roll .....................................6
A6. Triangle Loop with 1/2 Roll .......................................7
A7. Half Circle inverted.......................................... ........2
A8. Rolling Circle with 1/1 integrated Roll ..........................7
A9. Top Hat with two 1/4 Rolls .......................................7
A10. 2/4 Points Roll .................................................. ....4
A11. Push-Push-Pull Humpty-Bump...................................3
A12. Torque-Roll .................................................. ........6
A13. Landing Sequence .................................................1

Jürgen
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Old Feb 07, 2006, 01:40 PM
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HMMMM
That is what it says in the FAI document
http://www.fai.org/aeromodelling/documents/sc4
--->
ftp://ftp.be.embnet.org/pub/FAI/Spor....f3a.06.v2.zip
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Last edited by perttime; Feb 08, 2006 at 12:28 AM. Reason: removed the quote (list of manouvers)
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Old Feb 07, 2006, 02:59 PM
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Quote:
Originally Posted by perttime
The k-factors in the FAI SC are most likely from the initial proposal before they got changed. Should not happen, but as it is a provisional class, changes are probably to be expected.

Jürgen
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Old Feb 08, 2006, 01:01 AM
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I sent a note about this on the FAI website. I don't know who will read it and when.
(Currently I am not even a member. My club membership does not include membership in the national association.)

Edit: I got a PM about this. Apparently the K-Factors stand as posted (and originally proposed to FAI by Michael Ramel). No changes are on the agenda for the March meeting of CIAM (?).
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Old Feb 09, 2006, 09:34 AM
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Here is cuts from a response I got from a more official source:

"
[...]
F3P rules as they are in the FAI S/C currently have been origined by the German NAC DAeC in 2004/5. Meanwhile, with additional contest experience, the DAeC has modified the AM part for its national scope
[...]
[and] has made according proposals to the FAI/CIAM, which [...] will be voted on in March 2006 by the CIAM plenary meeting. If accepted, such modifications will be adopted by the FAI S/C as well.

[...] this case is again a good example for internet forum discussions getting easily off the facts [...]
"
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Old Feb 09, 2006, 02:06 PM
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Quote:
Originally Posted by perttime
Here is cuts from a response I got from a more official source:

"
[...]
F3P rules as they are in the FAI S/C currently have been origined by the German NAC DAeC in 2004/5. Meanwhile, with additional contest experience, the DAeC has modified the AM part for its national scope
[...]
[and] has made according proposals to the FAI/CIAM, which [...] will be voted on in March 2006 by the CIAM plenary meeting. If accepted, such modifications will be adopted by the FAI S/C as well.

[...] this case is again a good example for internet forum discussions getting easily off the facts [...]
"
I have no intend to citicize the FAI, but we are not talking about F3P-AM here, but about the k-factors in F3P-A, and there have been no changes between 2005 and 2006.

Jürgen

P.S.: In Germany we have two organizations, the DAeC (German Aero Club) and the DMFV (German Model Flying Association). Although the DMFV has a lot more members, only the DAeC is recognized by the FAI as NAC.
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Old Feb 10, 2006, 05:16 AM
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I have no great personal interest in this.

In any case, FAI is the International governing body. If you want a competition that FAI recognises, you play by the rules written in FAI Sporting Code.

If you think the FAI sporting code is wrong, I suggest you contact your national representative. F3P is still a provisional class and rule changes are easier than in established classes. Of course, any changes will be voted on in FAI/CIAM.

If you do not want to play by FAI rules, you can, but then you are on your own.
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Old Feb 10, 2006, 06:23 AM
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Quote:
Originally Posted by perttime
...
I suggest you contact your national representative. F3P is still a provisional class and rule changes are easier than in established classes.
...
Guess who I did inform about the discrepanicies? The national representative of course. The DMFV runs German Indoor Aerobatic Championships since 2001. Starting 2004, they are run in co-operation with the DAeC.

The new proposals for 2006 have been co-ordinated between the two organizations.

As far as AeroMusicals is concerned, just compare the scoring rules for F6B AeroMusicals and F3P-AM - it becomes pretty clear how the core sheet should look like.

Jürgen
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