Hi Ed, Iām looking at a 2017 or 2019 SR22 Turbo v NA, and I saw your note where you said āI fly both from a 2,500ft runway and you can really see the differenceā. What was the difference? Did the turbo take a much longer time or was more challenging to get off the 2,500ā runway or were they similar? Thanks!
The difference is that the turbo is 2500rpm and the NA is 2700rpm.
My bad, its not the total takeoff distance that is 40% longer itās the ground roll. The 50 foot obstacle number is 12% greater.
The airport I mention is BQ1 (445MSL) and on a 90 degree day taking off on runway 13 will get your attention.
I recently did factory training for a gentleman from the UK who was going from a G3 turbo to a G6 turbo and there was a great deal of concern on his part when he saw the POH numbers as he operates from a 1600 foot runway (no obstacles) durning the winter. With the 3 blade we used a soft field takeoff technique and short field landing and consistently exited the runway at 1500 feet.
I donāt believe there are many public airports in the U.S where either a T or NA has an issue.
If you dont like to fly with oxygen mask and will stay lower then FL120 for most of the time in my opinion its useless to buy Turbo,
Maintenance cost more, it have less useful load and cost more.
Br
BogdanS
That is a very sealevel bias
Thanks so much Ed!
A better question would be if your mission profiles is to routinely takeoff from sea level and climb to 7k feet, why would you even consider a turbo.
Itās not the right question to ask. Your āmission profileā isnāt to fly at a specific altitude; itās to fly a trip with the greatest degree of comfort, safety, and speed. Unless your missions are almost exclusively very short trips, higher is almost always better. The myriad advantages of a turbo have almost nothing to do with clearing terrain.
The real advantage is that for many reasons it is just plain better to fly high. E.g., smoother air, far less traffic, better routing options, overfly all Bravos, faster TAS of course, above the ubiquitous Eastern US murk, better visibility to see and avoid convection, climb out of ice, etc. None of these have anything to do with clearing terrain.
I flew a g2 then a g5 based out of Florida and I never had the need or use for a turbo. 7-10 k feet is smooth air even in the Florida summers and the few times I flew high enough to need a mask I never enjoyed it or saw any benefit . In fact my favorite trips in my 22 were the ones I stayed low and got to take in the countryside.