LIGHT TWIN FOR HOT AND HIGH ALTITUDE

[echocharlie35]

Friends,

Amongst A109 Grand New, EC 135 P2e and Bell 429, which machine is best suited for high altitude flying i.e. landings at 10,000 ft PA with temperatures ranging upto + 20 deg Centigrade. Would appreciate if you could give the HOGE landing weight for the a/ mentioned altitude respectively.

[Shawn Coyle]

It might be better to specify the payload to be moved (and radius of action required), and the country of registration - the 429 has a max weight of 7,500lbs approved in some countries, but not in other, as just one example.

[spinwing]

Mmmmm ...

I believe 109 K2 was originally designed for higher altitude Ops ... if you can get one??

:bored:

[JimL]

A useful comparison can be found chapters 5.2 and 5.3 and the Attachment to this document:

http://www.easa.europa.eu/certification/flight-standards/doc/oeb-supporting-documents/tgl/TGL-43-HEMS-Mountain-Ops.pdf

Jim

[PhlyingGuy]

Here you can find the two product spec books for the 429 depending on if your country has approved the the 7500 lbs MGW

Data & Brochures (http://www.bellhelicopter.com/en_US/Commercial/Bell429/1291148331786.html)

It looks like the standard performance info is on page 4/5 and the performance charts are at the end.

I know that the OEM sales people typically have comparison charts though if you don't want to do it yourself.

[echocharlie35]

Basically it will be a corporate machine in five seat configuration but for EC135 which will be in a four seat configuration . My country has approved the increase in AUW of 429 to 7500 lbs

[echocharlie35]

ROA we are looking at is 220 NM, EEW of 429 is 4950 lbs, EC135 is 1960 kgs and A 109 G New is 2180 kgs. With these figures and landing at 11000' PA at +15 deg C, what payloads can be carried ?

[Harry the Hun]

ROA of 220? without refueling none of the three will make it