703 Piston Twin T/O Perf requirements

[FLS Beam]

Hello All,

Does anyone know offhand about, or if, performance requirements are mandated by CARS for piston twins (eg. Navajo)? I.E. ASD, AGD, obstacle clearance. Wx minima is straight forward, but I have not located any perf requirements beyond W & B.

Thx.

[planebored]

Lol..

How many lights left when you rotate?

[iflyforpie]

No.

I don’t believe it’s a requirement until you’re above 5700 kg and it’s mandated by the AFM and the certification requirements, not the CARs specifically. So all the way up to a King Air 200 or so there are no legal requirements for balanced field or net takeoff flight path.. but above that for a King Air 350 or 1900 you need that with WAT data.

[FLS Beam]

As I surmised, and thanks for your words IFFP.

[co-joe]

If, for some stupid reason you were to operate a Ho under 704, then you would have to show balanced field calculations, not net takeoff flight path...I think, maybe. ok i have no idea.

[Redneck_pilot86]

there is no requirement to do the performance calculations required of 704/705 ME aircraft.
That said, you do have an obligation to operate the aircraft within its limitations - if the manual says you need 2000' to get airborne, and you depart from 1500', you're going to be fine, right up until you're not.

[goingnowherefast]

703 needs to meet "all-engines-operating-take-off-distance". No engine out performance necessary. It's perfectly legal to rotate, grab for the gear handle, experience an engine failure and plow into the trees at the end of the runway. 704 and 705 require the aircraft be able to climb over the trees after the engine failure.

For 703, there is also this:

Enroute Limitations
703.32 No person shall operate a multi-engined aircraft with passengers on board in IFR flight or in night VFR flight if the weight of the aircraft is greater than the weight that will allow the aircraft to maintain, with any engine inoperative, the MOCA of the route to be flown.