think this Eve rocket will work?

[Brainlord Mesomorph]

So simple you wont need a pic: one big SRB with more big SRBs around it and a minimal capsule on top. 100 tons

Launching from the KSC it goes interstellar! Kerbin orbital velocity 5100 m/s.

is it enough for Eve?

 

Edited April 2, 2016 by Brainlord Mesomorph

[Starhawk]

No.

SRB's ISP will be destroyed be Eve's atmospheric pressure.  Eve landers are pretty much limited to aerospikes, vectors, and mammoths these days.

Happy landings!

Edited April 2, 2016 by Starhawk

[Snark]

Unfortunately, it definitely needs a picture.  Aerodynamics is king on Eve, and will really affect how your ship performs.

Also, what's your TWR?  That matters a lot on Eve. Too low, and you get crippled by gravity losses.  Too high, and you get crippled by aero losses.  It's a much bigger deal than it is on Kerbin, where both gravity losses and aero losses are much lower than on Eve.  SRBs are likely to be problematic here, since you can't adjust their thrust in flight.

And I suspect what's really going to kill you will be Isp.  SRBs have pretty bad Isp already, and they're significantly impacted by atmospheric pressure (for example, they typically get something like 20% worse thrust at ASL than in vacuum).  They're going to get much less thrust on Eve.  I wouldn't be surprised if they have trouble just getting off the ground.

My guess would be that it's unlikely to make it to Eve orbit from the surface, but hard to say for sure with just this information.

However, moral of the story:  I suspect that SRBs and Eve don't mix.

[Plusck]

I'd say no. SRBs have pitiful Isp in Eve's atmosphere - last time I check the biggest SRBs only get a TWR of 1 at about 4 km altitude or so on Eve. I'd assume that an orbital velocity of 5000 m/s off Kerbin can be had with a total dv of about 6000 m/s (vacuum) or maybe a touch more.  

So if you start at a good altitude on Eve, you might be able to get out of the atmosphere - but you'd have to RDV with an extremely high dv ship in orbit (one that can virtually come to a stop, pick up your Kerbal then get back to orbital velocity again) to have a hope of surviving. IMHO

[Brainlord Mesomorph]

Thanks. Clearly no..

I don't have the tech yet. I can send a manned mission to Eve. (I have a transfer window) but they'll  looking at it from orbit.  

I'm now designing atmospheric probes.

@Snark its as pointy as it can be.

 

Edited April 2, 2016 by Brainlord Mesomorph

[Snark]

2 minutes ago, Brainlord Mesomorph said:

Thanks. Clearly no..

I don't have the tech yet. I can send a manned mission to Eve. (I have a transfer window) but they'll  looking at it from orbit.  

I'm now designing atmospheric probes.

@Snark its as pointy as it can be.

 

Fair 'nuff.  The real killer's gonna be Isp.

In the post-1.0 world, my impression is that Eve landers tend to have a fairly consistent design-- there's a certain amount of convergent evolution going on.  The most common design I've seen is a six-booster Vector-powered asparagus, with each fuel stack being two FL-T800's one atop the other, and then a final Terrier stage for the orbital insertion.  Flight profile is basically "go straight up at around terminal velocity for 20 km, then tip over slowly into gravity turn."  Total ship mass on the surface tends to be in the 60-90 ton range.

I've also seen designs that had a Mainsail under a Big Orange Tank.

Atmospheric probes are a nice place to start-- as long as they've got a heatshield, they're very easy to land on Eve.  It's getting back that's the problem.

Incidentally, if you'd like a few additional places to visit while you're at Eve, there's this. 

 

[OhioBob]

23 minutes ago, Snark said:

Fair 'nuff.  The real killer's gonna be Isp.

The specific impulse of SRBs is terrible at high atmospheric pressures.  The best is the Kickback,

Pressure (atm)	Specific Impulse
0	220
1	195
2	165
3	133
4	100
5	67
6	33
7	0

From most places on the surface of Eve, the Kickback can't even lift its own weight.