Does anyone know how old the Onur Air fleet of A 321 Aircraft are ? More to the point have they replaced any at all over the last few years ?

First of all welcome to the forums Rotterdam!
We're a nice little bunch of aviation enthusiasts, professionals, spotters, simmers and simply people who like to share their hobbys. If you have any question at all feel free to ask. There should be someone around to help you out. Also feel free to answer a topic if you know the answer or like to share your ideas. What role do you play in aviation or what made it to your hobby? Introduce yourself so that we all know who we are dealing with. Enjoy your stay, hope to see you around.

To be honest I have no clue but I googled a bit and came up with this site: airfleets.net

Delivery date seems to be the date they entered service at Onur Air compared with the aircrafts MSN. But the MSN will give you some further Information on which other registrations and companies they flew for. MSN 364 for example was an Aibus Industries prototype from 11th march 1993. Hope thats what you were looking for.

yours Chill

Many thanks.

Male,late 50s. Currently Into flight sim but have flown around the World on various aircraft from mid sixties including KLM,Quantas,BA,TAP,SAA,Singapore and going further back Laker Airlines DC 10. Favourite airliner was the old BAC 1-11 and then the B727 but now the new generation of modern airliners have swallowed the market with sheer power.
Going back to Onur Air, I did notice some of the Onur Air Fleet have' ISD from ILFC' or ISD AIRCAP ? What does this mean ? Also,could someone explain to me what the difference is between an Airbus 321-111 - A321-231 - A321-131 is please ?

Again Google helped a lot. Here you are.

ILFC as well as AIRCAP are aircraft charter, rental and leasing companies/contractors. Nothing unusual as most airlines tend to lease some if not all of their aircraft in order to react a bit more flexible to the markets needs. As a second leasing doesn't afford as much money from the start as buying the aircraft. In the long run buying would be cheaper but also include more risks. An aircraft that stays on the ground for whatever reason doesn't earn money but produces huge costs.

yours Chill

Hey Rotterdam,
I'm just curious if the info helped you out or if you needed it even more precise?
Guess almost everyone that has flown throughout some time of his life gets hooked on aviation in some kind. The DC10 was or is, as it is now the MD11, a nice plane. I think Trijet could give you some further infos on that bird as it is his office. Modern planes actually aren't so much about power anymore but about efficiency. Most people will rather travel long distance for a low cost than get there an hour earlier. Plus modern technologies did improve aviation a lot. Isn't it amazing how far we have come since the Wright flyer?

Hi,

It most certainly has. I Have to admit to being both facinated and at times rather obsessed with commercial jet aircraft since the day I first flew way back in 1967 to Gerona,Northern Spain. Just lately I have also become interested in fleet size and engine types hence the questions regarding Onur Air. I have spend a good few hours at various airports plane spotting including the famous Manchester (Ringway) 23L runway as a spectator a few times, and have to admit the feeling of watching an Aircaft such as the B.777 spool up for take off so close (25 mtrs away)was truly incredible.

Yup, its always exciting to see them birds take off. Especially if you consider their weight. Those 777ER engines are really neat and have a hell of a lot of thrust. They are about the size of the A380 engines. I always liked this video to point out an engines thrust power.
Somehow people always ask how much Horse Power or KW a jet engine has. Unless its a Turbomotor engine (e.g. helicopters) it is quite hard to tell, since Newton is not equal to Horse Power. Never the less It didn't stop bothering me to find it out. The factor missing in the conversion is velocity, leading to the statement that a running engine has 0 power when the aircrafts speed equals 0 ! But luckily there is a factor used for the seldom occasion that engineers do need to convert for whatever reason:

1N = 100W or 1lb = 4,448 N = 0,6038 PS(~HP)

Taking the max certified thrust of the A380s Trent900 with 356000N equals to 48325PS = 47664HP per engine! Having four of them means it has 193303PS = 190659HP ! Enough power to supercede the Queen Elisabeth II engine with 130000PS = 128222HP. Now if you compare the size of the jet engines to the piston engine that sheer power is truly amazing.

Ok, 'nough said. This just always comes across my mind when I think of engine power...

So let's do some physics...
Power = Energy / Time
But Energy = Force * Distance
So Power = Force * Distance / Time, which is just Power = Thrust * Speed, with thrust being pretty constant regardless of speed. Easy

So yes, if Speed = 0, the power that's useful for propelling the aircraft is equal to zero, which usually is what counts.
Of course the mechanical power of the engine is far from being null, which you can easily find out by doing a little walk behind that A380. If all you got it for was to have the biggest fan of the neighbourhood, then it's pretty powerful for one indeed, with power being more along the lines of displaced air mass * air speed difference between input and output.

So, useful engine power, or more importantly efficiency is proportional to speed, which is why you'd better fly fast when you use a jet engine.

You got it. Thinking of the humidity we have here right now I'd love to have such a fan!
But what you said is exactly one of the difficulties in converting. Theres a difference between pure thrust with zero airspeed as in mechanical power and propulsion power. What I was looking for was mechanical power though and that has a lot of variable factors that are unknown. This explaining the usage of a simple approximation factor.
Thats exactly how engine power is measured on a jet powered airplane. Unless for Turboshaft or Turbomotorengines EPR (Engine Pressure Ratio) is one of ways to measure power:
P = m * (c² - v)/2

Oh hey, and I just saw a picture of yours in the german Aerokurrier concerning an FPV article. What a coincidence, that guy with the glasses on reminded me of someone... Hope you got paid for it.

Any link/scan?
Never heard of it...

Hmm, well the only link I could find is the one showing the magazines issue of 05/2010, but it doesn't show your picture. It's quite similar to this magazines cover . Unfortunately the article wrote nothing about you as I thought it would after seeing the image. But maybe they belong to the same publishing house?