From here
Unless you want to fly a new RVSM aircraft, right?
Seriously, assuming you can hold your breath without pressurisations & heaters above FL200?
There is the STC conversion of Mooney by Rocket that fly at 31kft (+1kfpm climb at 25kft)
I think there is one in UK for sale on planecheck at 135k£ and will get you 220kts at 28kft
All glass cockpit but you need RVSM avionics and TKS
It flies at 6kft most of the time though 
Perhaps a bigger aftermarket turbo?
It’s 305hp engine + turbo, the original versions had 200hp/210hp and make 20kft/24kft
Peter wrote:
That Mooney is nonsense. For 31000ft the oxygen requirement will be interesting, for a start. And can’t be flown RVSM. The huge screenshots… showing what? Perhaps a bigger aftermarket turbo?
It’s the remarks in the add which are taken from some marketing yukspeak review of the Rocket. A ceiling of 31k ft is useless mostly for the reasons mentioned, it is dangerous to fly a non pressurized plane that high without specialized O2 (basically military grade pressure breathing) and also the RVSM requirements preclude doing it. Apart it is wrong, the service ceiling I could find for the Rocket is 24000 ft, like for the 252 from which it stems.
The Rocket is a very desirable upgrade from the equally desirable Mooney 252, which was the ultimate version of the Mooney 231, featuring a new engine TSIO360-MB1 with intercooler and variable wastegate and other massive improvements, such as 28V electics and over the stock 231.
The Rocket was produced in small numbers and equipped with a 305 hp Continental TSIO-520-NB engine. The airplane is hugely capable and basically close to the performance of an Acclaim but at a fraction of the price of one.
It has a usable fuel capacity of 108 USG and with this, can reach up to 1500 NM (FL240, 55%, 200 ktas) range.
Even at 12000 ft, the Rocket will do 205 KTAS @ 22 GPH at 75% or 185 KTAS at 15 GPH at 55% power, translating into ranges around 1000 to 1100 NM with 1 hr reserve.
At FL240, which is its max ceiling according to Mooney, it will fly up to 208 kts at 55% with 15 GPH up to 230 kts @ 25 GPH. This is very close to Acclaim figures.
At 18000 ft, which is the limit for canullas vs full face masks, the respective values are 195 kts @ 15 GPH up to 220 kts @ 25 GPH.
So the Rocket is a solid 200 kt airplane all the way from 12000 ft up to it’s service ceiling of 24 k ft with fuel flows between 15 and 18 GPH for the effort or it can go up to 230 kts at the expense of 25 GPH. In either case, there is not a lot a Rocket can’t do in terms of flying high and fast.
Here, this airplane would need to upgrade the GNS430ties to WAAS (by exchanging them, the upgrade is no longer available via Garmin) or IFD440ties and the way it is equipped would be a very fast IFR tourer for 2 plus bags with a range of between 1000 and 1500 NM (with the long range tanks). Hours and equipment other than for the WAAS upgrade are great and ready to fly.
The price is not bad at all for a Rocket with those numbers, of which only very few exist. The 252 as such is a very much sought after airplane with only 231 built, the Rocket is sought after even more.
Mooney_Driver wrote:
Apart it is wrong, the service ceiling I could find for the Rocket is 24000 ft, like for the 252 from which it stems.
The M20K/231 is certified to 24kft, the M20K/252 is certified to 28kft
The 305 Rocket was certified 24kft but still has +1kft of climb there
They never managed to get 305 Rocket certified with 31kft, as Peter mentioned due to aircraft oxygen system
But remember it’s Part91, you can fly above certified ceilings and legal to use a portable oxygen
Rocket/Encore conversions are still one of the well most saught after conversions for US Mooneys, some have gone those paths for useful load and performance but it’s difficult to imagine the same happening here with “airframe STC”? even on N-reg there are not that many takers when it comes to cough 150k on 200k aircraft !
Some people have done same with airframe & engine on DA42 to get it as close to NG 
It’s for “motivated owners”
210kts @ FL90 on a lowly Rotax 915
Very pretty. Issues to fly to france, though, as a 600kg ultralight
Inkognito wrote:
210kts @ FL90 on a lowly Rotax 915
I would buy one if they have them in 4 seats
about 4 years ago had a flight with my friend and his Lancair Legacy… remember an easy 230TAS cruise at 10’000ft
Of course its a homebuilt, and not for you guys since not officially IFR (yet…)…
Mooney_Driver wrote:
The price is not bad at all for a Rocket with those numbers, of which only very few exist.
Yep, was thinking the same
What about Cessna 400/Cessna TTx?
Max is 235kt, allegedly.
