BeechTalk - BT

Username Protected · **Posted:** 31 Jul 2015, 00:29

Username Protected wrote:

Until you get a pitotstatic blockage....

Which, under my design, would limit you to takeoff power? Seems like that would work out ok.

I get it, you would have to have fail safes and redundancies. All seems feasible. Maybe a manual power button on the dash to unlock full hp if the power limiter is giving you trouble? Seems simple enough.

Again, I make no claims to know what I'm talking about. But I want to fly an 850hp Evo someday.

Username Protected · **Posted:** 31 Jul 2015, 07:41

Username Protected wrote:

Until you get a pitotstatic blockage....

Which, under my design, would limit you to takeoff power? Seems like that would work out ok.

I get it, you would have to have fail safes and redundancies. All seems feasible. Maybe a manual power button on the dash to unlock full hp if the power limiter is giving you trouble? Seems simple enough.

Again, I make no claims to know what I'm talking about. But I want to fly an 850hp Evo someday.

Username Protected · **Posted:** 31 Jul 2015, 07:47

Its a very simple fix to limit HP on a turbine. Put a red piece of tape on the torque gauge at the limit you want to establish. Don't push torque past the red piece of tape. That's how the vast majority of turbine engines out there are limited.

Username Protected · **Posted:** 31 Jul 2015, 11:53

Username Protected wrote:

Its a very simple fix to limit HP on a turbine. Put a red piece of tape on the torque gauge at the limit you want to establish. Don't push torque past the red piece of tape. That's how the vast majority of turbine engines out there are limited.

The point is they want a dynamic limit - low limit during slower flight so as not to overpower the control surfaces, higher limit during faster cruise flight. A piece of tape doesn't accomplish that.

Username Protected · **Posted:** 31 Jul 2015, 12:18

Username Protected wrote:

Wouldn't it be a pretty easy solution to link the available HP of the engine to the airspeed indicator?

So, for example, full throttle at 0 KIAS = 400 HP for takeoff (or whatever the rudder can handle). Full throttle at 200 KIAS = 850 HP for high altitude cruise. Properly limited that way, it seems like you could have a stable aircraft with enough HP to go really fast, but still be relatively idiot-proof at low speeds. And piloting should involve putting the lever forward and leaving it there until time for descent.

In the modern day of FADEC engines and fly-by-wire, that should be possible.

Just thinking out loud here. I have no engineering degrees or aircraft design experience. But I would want that feature if I owned an airframe capable of rolling itself with engine torque.

Much easier to have a stop on the throttle travel that you have to override if you want to push past it. So on take-off or missed, you push it up to the stop. To go farther, you hold down a button and push the rest of the way.

Username Protected · **Posted:** 31 Jul 2015, 12:26

Can a mechanical stop reliably correspond to a given torque in all situations?

Username Protected · **Posted:** 31 Jul 2015, 14:47

Username Protected wrote:

Its a very simple fix to limit HP on a turbine. Put a red piece of tape on the torque gauge at the limit you want to establish. Don't push torque past the red piece of tape. That's how the vast majority of turbine engines out there are limited.

The point is they want a dynamic limit - low limit during slower flight so as not to overpower the control surfaces, higher limit during faster cruise flight. A piece of tape doesn't accomplish that.

Username Protected · **Posted:** 31 Jul 2015, 16:24

Username Protected wrote:

Its a very simple fix to limit HP on a turbine. Put a red piece of tape on the torque gauge at the limit you want to establish. Don't push torque past the red piece of tape. That's how the vast majority of turbine engines out there are limited.

The point is they want a dynamic limit - low limit during slower flight so as not to overpower the control surfaces, higher limit during faster cruise flight. A piece of tape doesn't accomplish that.

Username Protected · **Posted:** 31 Jul 2015, 16:39

How about warnings like gear and overspeed.

Username Protected · **Posted:** 01 Aug 2015, 08:42

Username Protected wrote:

4 seats and 800 lbs payload is what I have read.
Ashley

I am 6' 6" and fi pt better in the back seats than in the front, the Evo is a 4 seater
The new mod for increased weight allows full fuel load, 4 people and baggage
And deice is being installed on mine as we speak

Username Protected · **Posted:** 01 Aug 2015, 08:58

Username Protected wrote:

I am 6' 6" and fi pt better in the back seats than in the front, the Evo is a 4 seater
The new mod for increased weight allows full fuel load, 4 people and baggage
And deice is being installed on mine as we speak

There you go. Post some pics of the de-ice when you get it.

Turbine, BRS, FIKI. It's the Bonanza everyone wants.

Username Protected · **Posted:** 01 Aug 2015, 15:49

So you fly from the back?

I believe there is no FIKI on experimental aircraft. Are you using boots?

Username Protected wrote:

I am 6' 6" and fi pt better in the back seats than in the front, the Evo is a 4 seater
The new mod for increased weight allows full fuel load, 4 people and baggage
And deice is being installed on mine as we speak

There you go. Post some pics of the de-ice when you get it.

Turbine, BRS, FIKI. It's the Bonanza everyone wants.

Username Protected · **Posted:** 02 Aug 2015, 11:15

Yeah u fly it like the tiger moth from the rear.... :duck:

Seriously, inflatable booths for leading edges, electric heater for the inlet, TKS for the windshield deicer and bonus gear mods to increase 1000 lbs take off weight with 10 ply tires

Username Protected · **Posted:** 02 Aug 2015, 11:24

[quote="Marc Bourdon"]So you fly from the back?

I believe there is no FIKI on experimental aircraft. Are you using

I hate to see this,at 28,000 feet when delivering the airplane for the installation
Early summer, rim ice in leading edge, lost 75 knots in airspeed and because of low temp the damn ice never sublimated until descending into KAPA

Username Protected · **Posted:** 02 Aug 2015, 13:19

Never seen ice at FL280. Its usually at least -30 there.
Who makes the boots? You couldnt use exaust heat or bleed air for the engine intake?

850 hp Evolution