High-hypersonic speed regime
- High-hypersonic speed regime
= Re-Entry Speed Regime =
Generally, NASA defines "high" hypersonic as any mach number from 10 to 25 and Re-entry speeds as anything greater. Aicraft operating in this regime are the Space Shuttle and various space planes in future development.
Comparison of Regimes
{| class="wikitable"
-! Regime! Mach ! Mph! km/hr! General Plane Characteristics
-! style="background-color: #FFFFFF;" | Subsonic
<1.0
<764
<1,230
Most often propellor craft and commercial turbo-fan planes straight wings
-! style="background-color: #FFC0C0;" | Transonic
0.8-1.2
610-915
980-1,475
Sharp intakes; compressibility becomes noticeable; slightly swept wings
-! style="background-color: #FF8181;" | Supersonic
1.0-5.0
764-3820
1,230-6,150
Sharper edges; entire rear tail is an elevator
-! style="background-color: #FF4242;" | Hypersonic
5.0-10.0
3,820-7,640
6,150-12,300
Cooled nickle-titanium skin; highly integrated, small wings
-! style="background-color: #FF0303;" | High-hypersonic
10.0-25.0
7,640-19,100
12,300-30,740
Silicon thermal tiles, blunt wings
-! style="background-color: #C00000;" | Re-entry speeds
>25.0
>19,100
>30,740
Ablative heat shield; no wings; blunt capsule shape
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2010.
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