Simviation Forums

How come when i am flying at around 15,000 ft. my Blackbird lose spped and i can onlt get a top speed of 220 knots?

The air is thinner up high.

How come when i am flying at around 15,000 ft. my Blackbird lose spped and i can onlt get a top speed of 220 knots?

Are you using the Ex-Payware version of Alphasim's Blackbird? If so, I believe the flap keys make the plane accelerate faster, although that could have just been a fluke on my system somehow (in FS9, at least).

A top speed of 220kts is reasonable for the Blackbird... at 80,000 feet.

As a1 stated, your IAS (Indicated Air Speed) won't reflect the Ground Speed of your aircraft. At 80,000 feet you might be going 200-250kts, but on the ground, you'll easily be moving at 2000+ knots. As air gets thinner, jet engines get much more effective.

Hit the afterburner after 10,000 and hit F7 or click the flaps up one with whatever key and you'll be roaring.  Read the Aircraft checklist for more specific numbers.

Hello How Is Your Flight Simulator Doing?

How come when i am flying at around 15,000 ft. my Blackbird lose spped and i can onlt get a top speed of 220 knots?

Are you using the Ex-Payware version of Alphasim's Blackbird? If so, I believe the flap keys make the plane accelerate faster, although that could have just been a fluke on my system somehow (in FS9, at least).

A top speed of 220kts is reasonable for the Blackbird... at 80,000 feet.

As a1 stated, your IAS (Indicated Air Speed) won't reflect the Ground Speed of your aircraft. At 80,000 feet you might be going 200-250kts, but on the ground, you'll easily be moving at 2000+ knots. As air gets thinner, jet engines get much more effective.

Oh ok then. Well I always thought that the jet engines weren't effective up high.

How come when i am flying at around 15,000 ft. my Blackbird lose spped and i can onlt get a top speed of 220 knots?

Are you using the Ex-Payware version of Alphasim's Blackbird? If so, I believe the flap keys make the plane accelerate faster, although that could have just been a fluke on my system somehow (in FS9, at least).

A top speed of 220kts is reasonable for the Blackbird... at 80,000 feet.

As a1 stated, your IAS (Indicated Air Speed) won't reflect the Ground Speed of your aircraft. At 80,000 feet you might be going 200-250kts, but on the ground, you'll easily be moving at 2000+ knots. As air gets thinner, jet engines get much more effective.

Oh ok then. Well I always thought that the jet engines weren't effective up high.

It's quite the opposite, actually

Although, the Raptor is a special exception. It's not only a Jet Aircraft, but it's engines are a hybrid of Jet and Ramjet technology!

See, Jet Engines are more effective higher up; but less effective at higher speeds! This is the reason why many high-speed Military aircraft have special intakes which are designed to slow down the air entering the engine.

Ramjet's however get more powerful with the air they "eat". It causes them to move faster, and thus higher, and thus even faster! That was the beauty of the Raptor's engines! Course, with even the smallest of G-Loads they would shut-down. Very fickle plane, that did it's job extremely well.