Big Turboprops

[GTX]

Hi folks,

I was recently reading about the new EuroProp International TP400-D6 (the engine that will power the A400M) and started to wonder of the possibilities of designs using just one of these large turboprops (or similar - say the Kuznetsov NK-12 for instance).  Imagine a single TP400 of approx 10,000 shp powering something - an enlarged PC-12 or similar maybe? Your ideas?

Regards,

Greg

[kitnut617]

I've been having thoughts along this line myself, but using this engine from a C-133.

[B777LR]

If im not mistaken, the Kuznetsov engine is almost as long as the PC-12

The Europrop really is overkill for anything smaller than a Dash-8-400. I did find this concept on the internet though:

[GTX]

Well Rolls Royce for one has been touting the idea of turboprops making a significant comeback as B737/A320 replacments - I think that drawing is right in that class.

How about a 1 or 2 seater powered by one of these babies though?

Regards,

Greg

[Shasper]

Add a tail ramp to that plane & you've got another short/med. haul intratheater job!

Shas

[B777LR]

Well Rolls Royce for one has been touting the idea of turboprops making a significant comeback as B737/A320 replacments - I think that drawing is right in that class.

How about a 1 or 2 seater powered by one of these babies though?

Regards,

Greg

I beleive the engine RR has been looking at is the unducted jet engine. Sorta like a crossover between a jet and turboprop...

Dunno about a 1 or 2 seater with a Europrop TP-400, but it better have 2, or the torch might make it a bit hard to control. Perhaps something like the Dornier Do-335, with swept wings?

[GTX]

I beleive the engine RR has been looking at is the unducted jet engine. Sorta like a crossover between a jet and turboprop...

Both the turboprop and the Open Rotor (new name for the UDFs) are being looked at.  See following links:

Turboprops
OpenRotors etc

regards,

Greg

[GTX]

How about one of these babies in something like the Ayres Loadmaster:





Regards,

Greg

[philp]

That would make a funky gunship.

[B777LR]

What on earth is that? I love it!

[kitnut617]

It's Mike Myers in another rendition of 'Fat fuzzy bunny'   

[Jennings]

How about one of these babies in something like the Ayres Loadmaster:

The love child of a Budd Conestoga and a Cessna Caravan. 






OMG that's the ugliest thing I've ever, ever seen.


J

[AeroplaneDriver]

The Ayers LOadmaster is quite possible the most visually offensive thing to take flight. 

Trip7-Love your big TP concept.  That wing may be a bit thin/swept for an aircraft operating from restricted airports though.  That looks like a pretty fast wing, especially with no leading-edge devices.  Also you amy want to increase the rudder area with all that torque.  An engine failure at V1 would be interesting with such a small rudder area. 

Also, I'd give it a ceiling above FL250.  The Q400 is certified to 270 IIRC, and the D328 is certified to 290 I THINK.  Either way ,that wing looks like it would be happy high and fast.  Speaking of speed, your numbers are a little off. At 25,000 M 0.7 is closer to about 360kts, not 440.  At 250 440KTAS would be about .84 (with some variation for temperature). 

Still, it's a gerat design and I love the concept of a 320/737-sized turboprop.  It really makes sense for high-density, short-medium segments such as the US northeast corridor.   

[jcf]

The Ayers LOadmaster is quite possible the most visually offensive thing to take flight. 

Ah, but did they ever finish or fly the prototypes? My recollection is that the company, and project, tanked before aircraft completion.

Jon

[AeroplaneDriver]

I was under the impression the prototype flew, but on doing a little research it looks like it was still being developed when they folded.