View Full Version : ATR is Propeller-driven or turbo-jet engine ?
titipong
28th Jan 2009, 07:13
Dear All,
According to ANNEX6 4.3.6 Fuel and Oil supply
What is ATR aircraft between "Propeller-driven aeroplane" or "Aeroplane equipped with jet engine" ?
Regards,
Wizofoz
28th Jan 2009, 07:20
It is a propeller driven aircraft powered by Gas Turbine engines which run on Jet fuel.
titipong
28th Jan 2009, 08:51
Hi Wizofoz, the answer will effect to final reserve (30/45 min). which one ?
Propeller-driven aeroplane ... for the final reserve it counts the type of aircraft and the ATR is NOT a jet, it's prop driven.
bfisk
28th Jan 2009, 12:17
That is strange, because we operate the B200 (also turboprop) with 30 mins final reserve.
latetonite
28th Jan 2009, 15:16
Yes, but this is not an airline operation, is it?
I know of many ATR and Dash operators that fly her with a 30 min reserve.
In many national regulations it is referred to as turbine powered, thus the ATR and the like would qualify for the 30 min reserve verses the 45 min.
PT6
172_driver
28th Jan 2009, 16:59
EU-OPS divides into piston engine (45 min) and turbine engine (30 min) final reserve.
HAWK21M
3rd Feb 2009, 18:51
Correct term:- TURBOPROP.
regds
MEL...
barit1
4th Feb 2009, 02:43
Marketing term: PROPJET :} :ugh:
If this is the case what is a single engine turbo-prop conducting air services in EASA land meant to carry as Final Reserve?
:confused:
I'm going to look it up now, damn! :8
Actually. it is a very-high bypass unducted fan. :ok:
30 min hoding at 1500 above alternate + fuel to get from goaround at destination to said aternate at the planned alt/FL.
Note: no 5% added! dbee
barit1
6th Feb 2009, 13:03
Actually. it is a very-high bypass unducted fan.
Actually. it is a very-high bypass unducted GEARED, VARIABLE PITCH fan. :}
Loose rivets
7th Feb 2009, 03:20
We used to describe it in very technical terms on the Dart: The squirt coming out the back was worth about 17% of the whoomph.
Old Smokey
11th Feb 2009, 15:01
After a couple of thousand hours operating Darts Loose rivets, the word whoomph seems incongruous. The word "Stagger" comes to mind as being more appropriate.:bored:
A few Dart statistics - 90% of the energy produced was for making noise, 1.7% for jet thrust, and the remaining 8.3% used fto stagger the propellors.
I kid thee not!:E
Regards,
Old Smokey
Herod
11th Feb 2009, 16:37
Got to bite on that one. 6,000 hours F27. The Dart was a bloody good engine. Would take anything you threw at it. Ice? With that impeller at the front you could chuck ice cubes at it and it would just go on working. I believe the bird-strike trials involved frozen chickens. :) One engine RR got right from the beginning.