Extra Large/3.75 Meter and Tiny/0.625 Meter S.A.S Module(s)

[HamShanky]

I assume that Squad has already thought about this, because there are modules for both small and large sizes. If they keep up this trend, they should implement one for every size.

We need tiny and extra large S.A.S modules for our tiny and extra large craft.

If tiny S.A.S module(s) are implemented, people will be able to conceal S.A.S modules in wings, cavities, or use them in small rovers. If extra large S.A.S modules are implemented, people could stabilize lower stages of extra large rockets seemlessly.

[Kegereneku]

Well, on the matter I would gladly take 0.625 :

- long fuel tank

- high thrust engine

- solid booster

If only to increase design possibility, but I'm also hoping to see it used as the first ever engine available, with probes because it's better than starting manned.

However I think we shouldn't make 3.75 a normal size. In fact the lack of SAS capable of moving the mass of 3.75 rocket could be deliberate to mark the limit.

[Capt Snuggler]

the inline reaction wheel was resized to .625 in v0.25. and as Kegereneku says the 3.75 parts are too big to be manipulated by reaction wheels.

[moogoob]

I thought that was the reason for the Vernors - to reorient huge-size rockets.

[Joonatan1998]

Reaction wheels are already almost always the best choise for craft control.

Expect for airplanes and very heavy ships.

[Jouni]

Well, on the matter I would gladly take 0.625 :

- high thrust engine

We already have a high-thrust 0.625 m engine: it's called the 48-7S. Assuming a constant density, rockets powered by the 48-7S engine can be 11.6% taller relative to their diameter than rockets powered by the LV-T30 engine, 28% taller than rockets powered by the Mainsail, and 102.5% taller than rockets powered by the KS-25x4 engine cluster. What we're really lacking is a high-thrust 3.75 m engine.

[Kegereneku]

Reaction wheels are already almost always the best choise for craft control.

Expect for airplanes and very heavy ships.

The bigger it get, the less efficient it become. At some point I have seen document saying it would be more weight/energy-efficient to pump the propellant around.

What we're really lacking is a high-thrust 3.75 m engine.

They could just buff up the KS-25x4 to IMO "what it should be" (I'm always found the engine slightly underpowered for the weight it's meant to carry), but the KR-2L is quite "OP" too, I expected it to be a midstage engine but it can actually replace the KS-25 with its thrust.

You made your point for the 48-7S though, I had forgot how light it was to build at this size.

What's missing is maybe an high-Isp 0.625 engines, not the LV-1 but something better. Though it would require a bad TWR to avoid stack of it replacing the LV909.

[Jouni]

They could just buff up the KS-25x4 to IMO "what it should be" (I'm always found the engine slightly underpowered for the weight it's meant to carry), but the KR-2L is quite "OP" too, I expected it to be a midstage engine but it can actually replace the KS-25 with its thrust.

The KS-25x4 is actually more powerful than "it should be". The real SLS first stage won't be able to lift itself, while the KS-25x4 can easily lift a stack of three S3-14400 fuel tanks. It's a similar design as the space shuttle: boosters do the heavy lifting, while the first stage is really a second stage with a lot of extra fuel.

[Kegereneku]

Ah then the KR-2L really was that overpowered... Especially with its vac Isp.

What bother me is that unless you don't need a KR-2L as a second stage, the KS-25x4 don't stay a first/second stage for long so I've rarely used the two together. Guess it fit what I wanted about not making 3.75 a "normal" size but it encourage to use 2.5 as a middle-stage.

[THX1138]

The reaction wheels use only electricity with is unlimited with solar panels. The RCS and fuel-powered engines do not have this advantage. I need bigger reaction wheels.

[vexx32]

This is a bit of an old thread... well, we already have 0.625m reaction wheels, so this half came true.

Here's hoping for the bigger ones.