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Bostjan · Objavljeno: 26 Jan 2014 11:34 Naslov sporočila: FAI Pravilnik

Izšel je nov pravilnik:

http://www.fai.org/ciam-our-sport/f1-free-flight

Pomembna novost je ponavljanje štarta če je prvi let krajši od 20 sekund. Ne glede če je let prekinjen z DT.

Lep pozdrav
Boštjan

Bogdan · Objavljeno: 16 Apr 2014 07:28 Naslov sporočila:

Na zasedanju CIAM prejšnji teden je bilo sprejetih nekaj novosti tudi v zvezi s "prostim letom". V zadnji izdaji SEN, ene od mailing list ameriških kolegov, je bil objavljen naslednji povzetek ameriškega predstavnika v CIAM iz obvestila Iana Kaynesa o tem:
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CIAM Plenary Meeting Summary
(lifted from Ian Kaynes’ report)

15.2 Volume ABR, Section 4B
· i) B.9.1 (F1 Sub-committee) – People on the flight line – Passed. The rule will now read: Spectators are not allowed within 25m from the starting line. The only people allowed at the starting position are contest officials, the competitor, his helper, the team manager, and the assistant team manager.
· j) B.13.6 (F1 Sub-committee) – Rounding Flight times – Passed 14 for/10 against. The rule will now read: The time recorded is the mean of the times registered by the timekeepers, rounded to the nearest whole number of seconds to the resulting mean time (0.5 second rounded up to the second above) unless the difference between the times registered shows evidence of an error in the timing, in which case the organiser will determine, with the FAI Jury, which time will be registered as the official time or what action should be taken.
· n) B.17.6 (Austria) – License numbers on models: Defeated 8 for/30 against.

15.5 Section 4C Volume F1 - Free Flight
Indoor
· F1D a) 3.4.2. Characteristics of Indoor Model Aircraft (F1 Hungary) – Increasing model weight to 1.4g and reduce the motor weight to .4g. Passed 22 for/6 against.
· F1D a) 3.4.6. Collision Rule (F1 Sub-committee) – Reflight rule - Passed. The rule stating that reflights must be made “before his next official flight” is extended to read: in the case of a reflight from the last round, the reflight must be launched within an hour of the end of the round.
Outdoor
· F1C b) 3.3.2. Characteristics of Model Aircraft with Piston Motor(s) F1C (F1 Sub-committee) – F1C Safety – Withdrawn. It was recommended that the FFSC investigate changes to F1C to improve the reliability and safety of the models.
· F1E c) 3.5.8 Classification (F1 Sub-committee) – Passed. The rule will now state that when calculating percentage scores, they should be rounded to the nearest percentage to 2 decimal places.
· F1Q d) 3.Q.2 Characteristics (F1 Sub-committee) – Passed but modified to incorporate useful parts of the Finland, Italy, and three USA proposals. The rules will read as follows:
Nickel Metal Hydide (NiMH) and Lithium (Li) batteries can be used.
Lithium type battery packs must be in “as manufactured” condition with the covering around the cell surface. If more than one cell is used a balancer connector must be fitted.
External Battery packs are required to have a safety tether to the fuselage.
Safety locks must be used to prevent unintentional restarting of motor(s) after motor(s) have been stopped.
Rule B.3.1. of Section 4b does not apply to class (No builder of the model requirement.)
The motor run time will be determined by a maximum energy amount. In addition, motor runs over 40 seconds are regarded as overruns. The energy budget of each model is 4 joules per gram of the total weight. For energy calculations, weight exceeding 500 grams is to be ignored.
Models must have provision for connecting a Static Energy Test (SET) device between the battery and the models systems via 3.5 mm male and female bullet connectors. The connectors from the battery should be male positive and female negative. It is the responsibility of the competitor to supply any adapters needed to connect to the SET.
Energy limitation will be by an energy limiter or by a motor run limit related to measured power.
a) For models with energy limiters. The allowed energy amount starts to be calculated with the release of the start button and finishes when the ESC has stopped supplying energy to the motor. The energy limiter has to calculate the energy consumed in real time. After coming to the end of the limited energy supply, the motor(s) must stop irreversibly.
For energy limit verification a SET is to be connected to the model to allow measurements to confirm the energy used between the release of the start button and until the ESC has stopped supplying energy to the motor. To synchronise the time of release of the start button the model must include a cable connected in parallel with the start button and terminated with a 2-pin female connector with 2.54mm pitch. The SET must store and display energy or store the time and power data.
b) For models without energy limiters the motor run will be controlled by a timer. The motor run is calculated as the allowed energy divided by the measured power and rounded down to the nearest whole second below. After the motor has reached full power, the power is measured with a Wattmeter at a time equal to half the planned motor run. A fully charged battery (4.2V per cell for lithium, 1.2V for NiMH) should be used for the power measurement. The calculated motor run should be clearly marked on the model. The motor run will be timed statically on the ground by timing from start button release to motor cut-off. The motor run will not be timed in flight.
F1Q models may use radio control only for irreversible actions to control dethermalisation of the model. This may include stopping the motor if it is still running. Any malfunction or unintended operation of these functions is entirely at the risk of the competitor.
The number of models eligible for entry by each competitor is four.
· F1S j) Class F1S (F1 Sub-committee) – Introduce new FAI class for E36 models. - Unknown – Not covered in Ian’s report but I will find out and report on this forum.

Championships news
· The venues for 2016 FF Championships were selected at the Plenary meeting this year. Serbia withdrew their bid for the 2016 Indoor World Champs and the Plenary awarded it to the only other offer, Romania.
· Bids for the F1ABP Junior World Champs had been submitted by Romania and Macedonia.. Macedonia won the vote (MKD 27 –ROU 10).
· The F1ABC Euro Champs had bids from Romania, Macedonia and Serbia. In this case Romania and Macedonia withdrew, leaving the Plenary to award it to Serbia. It will be at Zrenjanin.
· The F1E Euro Champs bids were from Romania and Serbia. Serbia withdrew and Romania was awarded the event. The said that they planned to use a new site near Brasov, said to be better than Turda (but I will be visiting it to check…)

Chuck Etherington
USA CIAM FF Representative

Bogdan · Objavljeno: 05 Nov 2014 07:55 Naslov sporočila:

Po ovinkih je prišla na videlo vsebina tega dokumenta, ki je osnutek in predlogov za spremembo Športnega pravilnika FAI za 'prosti let', ki se bodo obravnavali na plenarnem zasedanju CIAM spomladi prihodnje leto.
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CIAM Free Flight Subcommittee
November 1 2014

Draft Proposals for CIAM Plenary 2015

Please let me have your views and votes for or against each proposal by November 10.

1 F1A 3.1.11 Launching Devices
a)The glider must be launched by means of a single cable with a minimum diameter of 1.5mm. The length of the cable, including release equipment and the launching device shall not exceed 50 metres when subjected to a tensile load of 5 kg. This tensile load shall be applied by means of an appropriate apparatus available to the competitors before and during the competition and also to officials during the competition when checking at least 20% of the gliders. Metal cables are prohibited.
REASON: The increased drag resulting from a minimum diameter of cable will reduce launch altitude and hence reduce absolute performance of F1A
COMMENT:
(1) This needs some tests to see if 1.5mm is a suitable diameter to significantly reduce bunt height.
(2) I considered whether to also specify that the cable must be single strand to facilitate measurement. But probabl y no necessary because a stranded cable would be more likely to squash on measurement and give a lower apparent diameter.

2 F1A 3.1.11 Launching Devices
c)To facilitate observation and timing, the cable must be equipped with a pennant, having rectangular shape of a minimum area of 8 dm2 and the smallest side of at least 5cm, attached directly to the main cable.
REASON: To increase drag on the line and hence reduce launch height, with incidental benefit of better visibility for timekeeping.
COMMENT: I have suggested just over 3 times the current size – will this make a significant difference??

3 F1A 3.1.5.Definition of an Unsuccessful Attempt
Add new item:
g)The model has been towed for more than 5 minutes without release from the towline
REASON: To reduce ease of achieving maximum flight times achieved by F1A models by giving less opportunity to search for thermals.
COMMENT: Possibly as an alternative to previous changes proposed for F1A.

4 F1A 3.1.7.Duration of Flights
Modify first sentence:
The maximum duration to be taken for the official flights in world and continental championships is four minutes for the first round and three minutes for subsequent rounds. In other international events a maximum of three minutes will be used for all rounds unless different durations (not exceeding four minutes) have been announced in advance in the contest bulletin for specific rounds.
REASON: To reflect performance of F1A models, which is similar to F1B and F1C which have 4 minute maximum in round one.

5 F1B 3.2.1 Definition
Delete the possibility of variable camber:
Model aircraft which is powered by an extensible motor and in which lift is generated by the aerodynamic forces acting on surfaces remaining fixed in flight, except for changes of camber or incidence. Model aircraft with variable geometry or area must comply with the specifications when the surfaces are in minimum and maximum extended mode.
REASON: To eliminate changes of camber of the lift generating flight surfaces, that is wing flaps not allowed. Flaps are being used on some models and a possible performance reduction and simplification is allowed by banning flaps before common adoption.

6a F1B 3.2.2 Characteristics
Maximum weight of motor(s) lubricated 25 g

6b F1B 3.2.2 Characteristics
Maximum weight of motor(s) lubricated 20 g
REASON: To reduce performance of F1B models.

7a F1C Characteristics
Maximum duration of motor run: 4 seconds from release of model.

7b F1C Characteristics
The maximum diameter of the air intake of the motor is 4.5mm
REASON: To reduce performance of F1C models.
COMMENT: Following Cesare’ s suggestion , actual size to be confirmed.

8 Annex 1 World Cup 8 Communications
The World Cup Coordinator should receive the results from each contest in the World Cup and then calculate and publish the current World Cup positions. These should be made available via the FAI web site.
REASON: To update the paragraph to reflect current practice, with the World Cup Coordinator having responsibility for the results and publication on the internet instead of distributing copies of results.

9 Volume ABR A.6 Proposals submitted to CIAM.
Add new item (i)Proposals which are accepted by Plenary will usually become effective from January of the year after the Plenary meeting. If a later effective date is required, this must be stated and justified in the proposal. The effective date must adhere to the dates defined in A.13.
REASON: To facilitate making significant changes to classes, which might render obsolete some models or components. These are more likely to be accepted by the competitor community if increased notice is given of the rule change.
Consequential change to A.7. Replace (c) and (d) by (c) Any proposals received out of sequence with the appropriate two-year cycle (A.13) and without later effective date and justification ( A.6.(i) ) will need to be re-submitted .

Ian Kaynes

Damjan · Objavljeno: 05 Nov 2014 08:43 Naslov sporočila:

Bedasto.....Ta pravila sprejemajo ljudje, ki nimajo pojma o FF.

F1A.
-Ne letimo vsi z LDA-ji....
-gledal sem malce po netu....Kje dobiti dovolj gibljivo in lahko vrvico premera 1,5 mm. Nylon je pretrd in se lomi, pa še dobiti ga je zelo težko v tej dimenziji. Ribiških vrvic s takimi premeri praktično ni....

F1C:
4 sekunde motorja ? Ajd, Ajd, čeprav je že 5 sec. težko izmeriti in prihaja do sodniških napak....

Premer difuzorja 4,5 mm? Bebast predlog, ki koristi edino proizvajalcem motorjev in elis. ta sprememba zahteva predelave motorja, ki niso poceni ter zamenjavo elis, ki pa tudi niso poceni......

Bostjan · Objavljeno: 05 Nov 2014 08:51 Naslov sporočila:

Bogdan si prepričan, da se o tem niso pogovarjali v našem parlamentu?
Najboljše da nam zvežejo noge kot konjem na pašniku.
Za moje pojme bi morali najprej vprašati tiste, ki so glavni akterji v tem športu. Se pravi tekmovalce.

Jaz največji problem trenutno vidim v organizatorjih (so seveda tudi dobre izjeme), kjer jim je glavni cilj čim več pokasirati. Se spomnim še našega prvega svetovnega pokala, smo imeli kar nekaj izobraževanj s sodniki. Danes pa verjetno temu ni več tako.
Da modeli letijo čim več časa pa je tako ali tako bistvo našega športa. To je kot bi na nogometni tekmi zmanjšali gol za polovico zaj pa prosim zabijte čim več golov.

Sicer pa se sam ne spomnim kdaj smo se pogovarjali na naši podkomisiji o kakšnem FAI pravilniku, verjetno nikoli ker našega predstavnika ni tam ali pa se mu po domače žvižga za prosti let.

LP

Bostjan · Objavljeno: 05 Nov 2014 08:56 Naslov sporočila:

Zadnja tekma v Franciji pa tudi ni pravo merilo, da so trije tekmovalci odleteli 10min. Tudi LDA modeli brez pomoči termike ne odletijo 10min. To je bila napaka organizatorja, ker so verjetno hoteli čimprej tekmo zaključiti.

Kar je še en dokaz, da tile ljudje nimajo vsaj malo pojma o vsaj eni kategoriji, kaj šele o vseh v FF.

LP

Damjan · Objavljeno: 05 Nov 2014 09:16 Naslov sporočila:

Boštjan, na CIAM hodi Jože Čuden, podpredsednik LZS. On je sicer raketaš in se na naše teme ne spozna.... Ga bom povprašal, kako je s tem in kako to tam funkcionira..
LPD

Bostjan · Objavljeno: 05 Nov 2014 09:20 Naslov sporočila:

Damjan vem da hodi Čuden, zato pa pravim, da je tak kot je. ali ne hodi ali pa se mu žvižga za prosti let. Ker še nikoli verjetno ni vprašal za naše mnenje v podobnih primerih.

Exclamation

Bogdan · Objavljeno: 05 Nov 2014 10:46 Naslov sporočila:

Čuden je pred leti zatrjeval, da ne hodi na seje CIAM-a, ker mu menda LZS ne plačuje. Mogoče je sedaj drugače. Vsekakor bi bilo dobro, da oblikujemo stališče in ga predamo našemu delegatu. Pred leti mi je hrvaški delegat Lulić omenil, da je v CIAMu precej uveljavljen sistem "proxy"-jev - pooblaščencev, da torej delegat ene države glasuje v imenu druge. Tako se lahko tudi zmanjšajo potovalni stroški.

Če ne bo nihče iz SLO šel tja...

Damjan · Objavljeno: 05 Nov 2014 11:16 Naslov sporočila:

Kot vem, je Ćuden bil na zadnjih nekaj CIAM-ih

Kot kaže je zadeva z denarjem urejena....

Bostjan · Objavljeno: 05 Nov 2014 11:57 Naslov sporočila:

Vsekakor je to tudi tema mogoče za sestanek podkomisije, kako izboljšati to sodelovanje z našim predstavnikom in verjetno mogoče izoblikovati naše stališča glede samega predloga.

Lp

Bogdan · Objavljeno: 05 Nov 2014 15:05 Naslov sporočila:

Hrvaški predstavnik vsako leto po seji CIAM napiše poročilo, ki ga objavijo na svojih spletnih straneh.

Damjan · Objavljeno: 05 Nov 2014 15:31 Naslov sporočila:

Pisal sem Čudnu in LZS v zvezi s tem. Čakam odgovor.

Bogdan · Objavljeno: 06 Nov 2014 07:11 Naslov sporočila:

Boško Lačimić, FB:
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Too much and high technology destroys aeromodelling. Enormous increase in the price model has resulted in reducing the number of competitors.
I'm sure everything's back to the original. Nordics with a plain hook and a single change to rudder. Wakefields with only one change to rudder and without variable pitch. Power also with a change only in rudder without gear.
So everyone could and with the model of balsa come out on the line. All would then be more concerned with aerodynamics and profiles, and less nano technology and expensive gearboxes and flappers.
The effect of reducing the time of flight with shortening the towline, rubber and engine operation, will become not cheaper models.Originally aeromodelling gives the same effect, and increases the number of competitors. — Smile

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Bostjan · Objavljeno: 06 Nov 2014 08:18 Naslov sporočila:

Na tekme pa se bomo vozili z katrco, pa fickoje, pa z trabanti.
Bo vse tak retro stil. Itak je to zdaj v modi.

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