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What can we use for « Prag resolution # 2 » ?. Or : How to use the facts and figures about safety from the most liberal UL regulation system in Europe ?. The idea was :. From microlights: We have good safety records We have this without heavy rules We achieve it without certification

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What can we use for prag resolution 2

What can we use for « Prag resolution # 2 » ?

Or :

How to use the facts and figures about safety

from the most liberal UL regulation system in Europe ?


The idea was
The idea was :

  • From microlights:

    • We have good safety records

    • We have this without heavy rules

    • We achieve it without certification

  • From homebuild acft:

    • It can be used to help designing a new acft category up to 600 kg.


Initial assumption for uls
Initial assumption for ULs:

  • We reached a 50% 3-axis / 50% trike ratio.

  • « Heavies » (their empty weight limits them to 156kg payload) 3-axis are the huge majority.

  • The 3_axis fatalities are only very slightly higher than the trikes’ one.


So we can
So we can :

  • extrapolate a light regulation for a new 600kg acft category with reasonable success probability.

  • Defend annex II


What i found out
What I found out :

  • Twice more 3-axis than trikes:

    • so the fatality per number of acft (or flying hours) may be better for 3-axis.

  • if majority are « heavies »:

    • « heavies » may not be more dangerous

    • A new category could be safe with light regulations.


Then i cheked the initial datas
Then I cheked the initial datas:

  • I took the F- microlights listing from the FFPLUM.

  • I considered the 2500 first UL sorted by alphabetical order of owner name.

  • I sorted them by official « sophistication »

    • Problem : in France, having a BRS qualifies an UL as « sophisticated » (like in-flight variable pitch propeler or retractable gear).




Next step
Next step : microlights » are 80% of the sales,

  • Going back to the fatal accident datas with this new criteria:

    Result :

  • Light 3-axis are as safe as trikes.

  • Heavy 3-axis have 3 times more fatalities than the « lights or simple » ones.

  •  we will have to be very carefull before feeding EASA with datas.


About homebuilt acft
About Homebuilt acft microlights » are 80% of the sales,

  • Limited to 4 seats.

  • Night / IFR only if certified engine/maintenance

  • Thrust limited for Jets to (more thrust on special request).

  • Can be really heavy!

  • Aerobatic, glider towing, etc

  • No commercial use

  • Flown with a PPL


Assumption
Assumption: microlights » are 80% of the sales,

  • Majority are of complex design

    • (you don’t spend thousands of hours to build a « 2 CV » you can buy for cheap, you build the Ferrari you can’t afford!)

  • They enjoy a declarative system with plan and stress analysis checked by CAA.

  • They have good safety records.


Verified
Verified : microlights » are 80% of the sales,

  • Majority is of complex design : YES

    • (They like Ferraris!)

  • Declarative system is the rule : YES

    • (any pilot « with sufficient experience » may be entitled to fly test the new born bird)

  • They have good safety records : YES

    • (Comparable to Aeroclub certified acft).


Benefit from the homebuilt acft
Benefit from the homebuilt Acft: microlights » are 80% of the sales,

  • You don’t need certification to be safe.

  •  calls for a new question:

  • What about the pilot?


Ppl pilots
PPL PILOTS microlights » are 80% of the sales,

  • Comparison Owners vs Airclub pilots

  • Fédération Française Aéronautique

    • More than 45000 pilots : 15hrs/year

  • Owners :

    • 2000 pilots : 100 hrs / year

    • THEY BOTH CAUSE 50% OF THE ACCIDENTS.


Why this difference
Why this difference ? microlights » are 80% of the sales,

  • Average instruction hours flown by an airclub PPL pilots / year : 3 hours

  • Average instruction hours flown by an owner PPL pilot / year :

  • 1 hour every second year to validate its PPL !

     Because the airclub pilots are flying in an organized structure.


Conclusion for uls
CONCLUSION FOR ULs: microlights » are 80% of the sales,

NO NEED OF ANY CERTIFICATION.

NO NEED FOR HEAVY LICENSING

NO NEED FOR MEDICAL


Conclusion for a new class heavier than uls
CONCLUSION FOR A NEW CLASS HEAVIER THAN ULs : microlights » are 80% of the sales,

NO NEED OF ANY CERTIFICATION.

A NEED FOR AN ADAPTATED

LICENSING / TRAINING

(compared with ULs)


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