A36 Bonanza turbo prop

Anyone else read the article in the new private pilot mag ( think it was
pvt pilot) that had the A36 Bonanza turbo prop modification.
They listed is as almost a half a million dollar modification.

In article ,
Jeff wrote:

Anyone else read the article in the new private pilot mag ( think it was
pvt pilot) that had the A36 Bonanza turbo prop modification.
They listed is as almost a half a million dollar modification.


A friend of mine here had one -- he got a Piper Meridian because the
Meridian is pressurized.

Jeff wrote:

Anyone else read the article in the new private pilot mag ( think it was
pvt pilot) that had the A36 Bonanza turbo prop modification.
They listed is as almost a half a million dollar modification.


Jeff,
These have been around for quite a while, and they are nothing but an
exercise in compromises. First, there is no "yellow arc" allowed on the
airspeed indicator, so redline becomes top of the green. This restricts
you to pretty low true airspeeds at breathable altitudes. Stay down
low, go slow and burn A LOT of gas. Go up high, go fast, and suck on a
nose bag. Not to mention that Jet fuel weighs 10% more than av gas, and
to carry enough to go anywhere, you have to install tip tanks.
Unfortunately, gross takeoff weight does not get an appreciable
increase, so cabin payload for anything but touch and go's drops into
the pathetic range. Etc., etc...

They are little more than a fun toy for those that can afford them. If
I were playing with that much money, I'd look into a light pressurized twin.

Happy Flying!
Scott Skylane

Scott Skylane wrote:
These have been around for quite a while, and they are nothing but an
exercise in compromises.

All airplanes are an exercise in compromises.

First, there is no "yellow arc" allowed on the
airspeed indicator, so redline becomes top of the green.

I know turbines don't have a yellow arc, but I never understood the
logic behind that. Vno (bottom of the yellow arc) is determined by
airframe factors -- IIRC, the ability of the wings to handle the
stresses from vertical gusts. How does taking out pistons and putting
in fan blades change how the airframe reacts to stresses?

This restricts you to pretty low true airspeeds at breathable
altitudes. Stay down low, go slow and burn A LOT of gas. Go up
high, go fast, and suck on a nose bag.

But oh man, think of the climb rates you must get!

this is the first time I heard of them having this conversion for the A36
bonanza, seems kinda like over kill for that plane. I have seen it for other
planes before.

the article said they also had to add tip tanks for the extra gas that thing
burns

Scott Skylane wrote:

Jeff wrote:

Anyone else read the article in the new private pilot mag ( think it was
pvt pilot) that had the A36 Bonanza turbo prop modification.
They listed is as almost a half a million dollar modification.


Jeff,
These have been around for quite a while, and they are nothing but an
exercise in compromises. First, there is no "yellow arc" allowed on the
airspeed indicator, so redline becomes top of the green. This restricts
you to pretty low true airspeeds at breathable altitudes. Stay down
low, go slow and burn A LOT of gas. Go up high, go fast, and suck on a
nose bag. Not to mention that Jet fuel weighs 10% more than av gas, and
to carry enough to go anywhere, you have to install tip tanks.
Unfortunately, gross takeoff weight does not get an appreciable
increase, so cabin payload for anything but touch and go's drops into
the pathetic range. Etc., etc...

They are little more than a fun toy for those that can afford them. If
I were playing with that much money, I'd look into a light pressurized twin.

Happy Flying!
Scott Skylane

I think the article said it gets 1700 fpm climb, TAS at 15000 is around 210
kts.

Roy Smith wrote:



But oh man, think of the climb rates you must get!

And KTAS for a Glasair III at 8,000 is 230.

Bruce
www.glasair.org

"Jeff" wrote in message
...
I think the article said it gets 1700 fpm climb, TAS at 15000 is around
210
kts.

Roy Smith wrote:



But oh man, think of the climb rates you must get!

"Roy Smith" wrote in message
...
Scott Skylane wrote:
These have been around for quite a while, and they are nothing but an
exercise in compromises.

All airplanes are an exercise in compromises.

First, there is no "yellow arc" allowed on the
airspeed indicator, so redline becomes top of the green.

I know turbines don't have a yellow arc, but I never understood the
logic behind that. Vno (bottom of the yellow arc) is determined by
airframe factors -- IIRC, the ability of the wings to handle the
stresses from vertical gusts. How does taking out pistons and putting
in fan blades change how the airframe reacts to stresses?

It doesn't, turbines are just rated more conservatively. There is nothing
magic about these numbers. Vne is simply 90% of Vd (maximium demonstrated
dive speed), and Vno (Vmo in turbines) is simply 80%. Barry Schiff has a
discussion of V speeds in one of his books.

Mike
MU-2


This restricts you to pretty low true airspeeds at breathable
altitudes. Stay down low, go slow and burn A LOT of gas. Go up
high, go fast, and suck on a nose bag.

But oh man, think of the climb rates you must get!

One of the theoretical advantages of the conversions is that it remains and
flies like a Bonanza, with excellent handling. The quality of Beech
workmanship far exceeds that of a Piper. A single turbine will likely be
more reliable regarding engine failures compared to a twin, without the
inherent difficulties of managing two engines, or one when the other quits.

Light pressurized twins require a lot more maintenance than a turbine
Bonanza- two of everything to break, and lots of moving parts contained with
an aging airframe and pressure vessel. Hourly operating expenses will likely
be lower, while dispatch rates will be higher with the turbine Bonanza.
Plus, the turbine Bonanza can be flown into significantly shorter and less
improved fields than a cabin class piston twin.

Yes, all airplanes are compromises in some respects, but most people would
agree that the performance of a turbine Bonanza probably exceeds that of a
lot of cabin class twins, and likely will be more reliable.

"Jeff" wrote in message ...
Anyone else read the article in the new private pilot mag ( think it was
pvt pilot) that had the A36 Bonanza turbo prop modification.
They listed is as almost a half a million dollar modification.

Yep, that's where I got the engine for my Navion. I have IO-550-B Platinum
edition, prop, engine instruments, etc... everything that came off some guy's
Bonanza when it went in for the turbine mod. Nine hours since factor new.