aerodynamic heat shields and inline parachutes

[MadMan43]

aerodynamic heat shields would be great because when the standard striate design is used high speeds are achieved than every thing overheats but just to even every out you can just make them heavier

the inline parachutes would by great because over heating destroys parachutes and I always find a way to break them

[Eric S]

I agree on the parachutes, but not the heatshields, because aerodynamic heat shields would make reentry heat worse. As counter-intuitive as it may seem, a pointy surface forward will heat up more than a flat surface forward. From what I've read, it has to do with flat surfaces causing the shock layer to be pushed out farther ahead of the vehicle.

EDIT: I've got a bit more time, so I'll go into more detail now. The first and most important thing to understand is that reentry heat doesn't come from friction, it comes from the atmosphere compressing into a shockwave because the craft is moving faster than the atmosphere can get out of the way from just atmospheric pressure.

In the case of an aerodynamic shape, the atmosphere can escape to the sides/rear after it's been compressed, so that the recently compressed atmosphere (the hottest part of the shockwave) winds up almost in contact with the craft. In the case of a flat or nearly flat surface, since the atmosphere can't easily escape, it winds up trapped there, which means that the point where the shockwave is occurring is farther ahead of the craft, insulated from the craft by the atmosphere that hasn't gotten away yet.

Edited July 17, 2015 by Eric S

[MadMan43]

its for exiting the atmosphere the aerodynamic heat shield

[r4pt0r]

its for exiting the atmosphere the aerodynamic heat shield

To be clear, you want dedicated heatshields....for the ascent?

[Nothalogh]

To be clear, you want dedicated heatshields....for the ascent?

I assume he's building a Nike Sprint

[Kegereneku]

I can't say I have an use for Aerodynamic heatshield but I would like inline Drogue-chute, or anything that let me stack a drogue-chute then a parachute on a capsule to compensate for the news aerodynamics.

[Crzyrndm]

its for exiting the atmosphere the aerodynamic heat shield

Just how much TWR are you planning on using... (plane parts already have increased thermal ceilings and planes shouldn't be flying fast enough low enough to matter anyway). Inline parachutes would be nice

[Redhotita1]

Instead of a "Nosecone heatshield" something like the X-15 body which was all covered by "heatshields".