- VentureStar was a single-stage-to-orbit (SSTO) reusable launch system proposed by Lockheed Martin and funded by the U.S. The goal was to replace.
- The mathematics suggest it is possible to do SSTO with small payload. However, the payload can be significantly increased using altitude compensating nozzles. The point of the matter is there are.
SSTO has been shown to be achievable by three separate approaches. The subject of this paper, VTOL, was the first concept to demonstrate the benefits of an SSTO. Recent analysis by U.S. Aerospace contractors has confirmed that both VTHL and HTHL systems would also be practical. The next column contains the degrees of freedom (df). SSTO has n-1 degrees of freedom, SSE has n-2 degrees of freedom, and SSR has 1 degree of freedom. The degrees of freedom for SSR and SSE add to the degrees of freedom for SSTO: The table now looks like this.
ANOVA
The analysis of variance approach to regression analysis, also called ANOVA is useful for more complex regression models and for other types of statistical models. To understand this approach, several variables must be defined. As previously defined, the variation of the dependent variable from the model is:
From variation, the total sum of squares (SSTO) can be calculated:
When SSTO is equal to zero, all of the observations are the same.
The next variable to calculate is the error sum of squares (SSE):
If the SSE is equal to zero, all of the observations are on the regression line, and the higher the SSE, the greater the variation from the line.
The difference between the SSTO and SSE is the regression sum of squares (SSR):
OR
These sums of squares provide the values for the first column of the ANOVA table, which looks like this:
| Source of variation | SS |
| Regression | SSR |
| Error | SSE |
| Total | SSTO |
The next column contains the degrees of freedom (df). SSTO has n-1 degrees of freedom, SSE has n-2 degrees of freedom, and SSR has 1 degree of freedom. The degrees of freedom for SSR and SSE add to the degrees of freedom for SSTO:
The table now looks like this:
| Source of variation | SS | df |
| Regression | SSR | 1 |
| Error | SSE | n-2 |
| Total | SSTO | n-1 |
The third column contains the means squared (ms) and can be calculated by dividing the sums squared by their degrees of freedom, therefore:
and
Note that the means squared are not additive, and no value for total mean squares appears in the final table:
| Source of variation | SS | df | ms |
| Regression | SSR | 1 | SSR/1 |
| Error | SSE | n-2 | SSE/n-2 |
| Total | SSTO | n-1 |
This table provides the values needed to compute the test statistic F*:
which tests the hypotheses:
Since the F* distribution is described as :
Where 1=v1 and n-2=v2 in the F distribution table, the decision rule is:
If , conclude C1
If , conclude C2
A web calculator such as http://davidmlane.com/hyperstat/F_table.html can also be used to find the value of F* instead of using the F distribution table.
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If you are on Mac, copy this URL to the clipboard and press CTRL+V while in the designer in SimpleRockets 2 to download this craft.
If you are on mobile, then try requesting the mobile version of the site. You can learn more about how to do that here. Otherwise, just click the Download for Mobile button below.
Ssto Spacecraft
This vehicle is stock.
A space plane proof of concept.
Developed by:
Only control the plane with the nav sphere. Nav sphere less control is quite difficult.
Slider 1 up for landing gear retract.
Action groups:
1. Landing Gears
2. Rocket Engines
3. Jet Engines
Advertising video that I made of it.
GENERAL INFO
- Successors2 craft(s)+56 bonus
- Created On:Windows
- Game Version:0.6.9.2
- Price:$26,547k
- Number of Parts:65
- Dimensions:4 m x 13 m x 19 m
PERFORMANCE
- Total Delta V:7.4km/s
- Total Thrust:500kN
- Engines:4
- Wet Mass:74,379kg
- Dry Mass:18,324kg
STAGES
| Stage | Engines | Delta V | Thrust | Burn | Mass |
|---|---|---|---|---|---|
| 1 | 8 | 7.4km/s | 1.4MN | 4.6m | 74,379kg |
Sstonline.org
- 2 months ago
how to download it on PC
- 8 months ago
@KellyNyanbinary
- 8 months ago
@Mod ok
- one year ago
how do you make the fuel tanks triangle????????
- +1 1.5 years ago
This can be a bit temperamental to fly but when it does it looks amazing!
- 1.6 years ago
@Mod ok
- 1.6 years ago
@Thisairplanesucks Your comment has been removed for breaking the website rules.
- 1.6 years ago
@Kell my settings were at high
- 1.6 years ago
And only throttle to 70% for liftoff @QuickNils
- 1.6 years ago
Turn up your physics settings @QuickNils
- +4 1.6 years ago
The only thing this does for me is tailflip and crash
- 1.6 years ago
Nice.
- 2.1 years ago
@Jaime731 Thanks!
- 2.1 years ago
@NoName101 Thanks
- 2.1 years ago
@mjdfx150529 I've just been in this time before
- 2.1 years ago
@Mod Deja vu
- 2.1 years ago
@GamingLaptopNoob Thanks!
- 2.1 years ago
@kerothehero Thanks!
- 2.1 years ago
@Bmcclory Thanks!
- 2.1 years ago
@InformaticNuke Thanks!
- 2.1 years ago
@SvenBlackbird Thanks!
- 2.1 years ago
@Mostly Thanks!
- +1 2.1 years ago
@HESOYAM Thanks!
- 2.1 years ago
@mjdfx150529 no probs! looks cool!
- +1 2.1 years ago
@laweacosmica @KraZlvan @pedro16797 Thanks!
29 Upvotes