I wonder if there will be a weight increase to 7,500 pounds....

Think I need stronger glasses John

Category A - external equipment
 

The Category A performance, Mass limitations - specified for:
Clear heliport - external equipment is a factor
VTOL(1-3) - external equipment is NOT a factor

Logical, when it comes to Cruise flight OEI, external equipment is a factor at Vy (65 kts) - actually in the exact same way as with Clear heliport.

I'm having problems with understanding how Clear heliport Cat A ops. are effected by external equipment when TDP/LDP's are up to 40 kts (with the same deductions as at 65kts)
and
VTOL ops. are not effected by external equipment even when FLIR and the SX-16 are in the downwash - vertical drag region.


Any ideas?

Anybody got the position of RH/LH installed hoist system? I could only find the mass of installed system (approx. 54 kg) but nothing on the position of the system and the lateral and longitudinal position for hoist load.

The supplement manual holds no required information, only a chart showing when you are ok and when not... not very accurate.

Phoinix,

I have in front of me; FMS 9.2-20 "Supplement For External Hoist System LH/RH Side" ... pages 1-24.

Is this the same info you already have?

Para 6.1 of Supplement;
Mass and Balance Correction says " Refer to Equipment List entries in Section 6 of the basic Flight Manual.

From Sect 6 of FLM;
6.2.2 "An Equipment List form EL-1 is appended to this section and contains optional equipment of the particular helicopter when delivered. Each item on the list is provided with a number and description for identification, together with its mass, arm and moment."

Hope that's of some help :confused:

Yes... but the hoist was not installed at delivery and there is no entry. ECD normally had SB's with details what to enter into the Equipment list, but I found none.

Do you happen to have a filled out EL for hoist?


Also the Supplement said nothing about the station for hoist cable (M&B calculations for hoist ops.) The Fig. 3 doesn't cut it for me :)

Sorry Phoinix, we don't have a hoist fitted, perhaps someone at Bond or possibly over on the continent will be able to help you on this one.

I take it you just want to know the mass, arm and moment of the hoist unit when fitted?

Hi Phoinix,

I can have a look at ours, they used to have winches fitted but I can't promise anything.

Otherwise ask Rotordomteur (I think that's his handle) he flies to the wind turbines, he should know. Also one of his aircraft works out of Humberside doing the same thing fi you want to ring them. The company is called Uni-Fly.

Thanks guys. I appreciate your help! If you have the chance, please check your FLM, otherwise I'll contact Rotordomteur.

:ok:

Had a look in the EL today but no mention of it, I assume they took it all out since we are not using it.

Thank you for looking. I just came to ECD, I'll ask them. If they don't know.... :)

Hi Phoenix,
check supplement 9.2-117.

Actually, there is nothing in RFM about that. Hoist is directly mounted on the transmission (correction: on transmission mount), no influence. You only have to add this 54 kg to the Gross Mass. After that, there is a chart in supp. 9.2-117 which tells you how much kg you can take on the hoist. It varies from 226 kg down to 150 kg (or 120 kg I'm not sure). So, it's not about the station and longitudinal CG (no influence), it's only about the Maximum Gross Weight and about the mass which you can take on hoist - lateral CG (that is what you must calculate for the conditions).

JR

Hi Jet Ranger

The whole helicopter is mounted on the transmission so I'm not sure this statement quite stands up to scrutiny.

Cheers

TeeS

Jet Ranger,
The C of G datum on the 135 - in common with most ABH products is 2.16 metres in front of the leveling point, (approx where the cyclic is).
In other words, out in front of the aircraft - consequently, all data points for things fitted are "minus".

Sorry if I expressed myself incorrectly...wanted to say...hoist is in line with rotor mast, so no influence on longitudinal CG (you can't find any data about the station in RFM or particular SUPPLEMENT)

JR

Hi again Jet Ranger

http://www.airbushelicopters.com/w1/...otor76_26a.jpg

The mounting point is not where the mass acts on C of G, it is the centre of mass of the winch (and any load on the winch) that is important.

Cheers

TeeS

Hi TeeS,

on this pictures we see winch in stowed position, but when is in extended position the mass on winch acts in CG.
I would appreciate if you have any data about it´s station.

JR

I'll see what I can find out JR, I'm not directly involved in hoisting operations with the 135 but we do have people who are.

Cheers

TeeS

In the meantime, a vid of the winch in action;



:ok:

That 'environmental tech testbed' spotted last September finally breaks cover:

Eco-friendly and eco-efficient technologies of tomorrow take to the sky with Airbus Helicopters’ Bluecopter demonstrator

https://pbs.twimg.com/media/CJT9qIzWsAAkhPP.jpg

For comparison:

.......http://i.imgur.com/ZNm2UyV.jpg

I/C