Welcome aboard the G42-200 Starliner development thread :hello:
the latest release is: WIP 3'02
dowload from the hangar: [ame="http://www.orbithangar.com/searchid.php?ID=5456"]G42-200 StarLiner WIP-302[/ame]
for follow-ups on current progress and discussion about features, bugs and whatnot - proceed to last page :thumbup:
Edit:
New continuity to the project was granted by the act of exalted members of the human race! See: This new thread
Edited;
given the lack of conceptual stability inherent of the work-in-progress nature of this project - documentation is indeed scarce - therefore, what we have for now, is this checklist covering the most recent state developmment stage for surface-to-orbit operations
--------------- original first post ----------------
hmm... ok...
since i'm unable to contain my own A.D.D.-powered torrent of random ideas, here's the latest development of mine....
the other day i was showing the still-not-finished G42 to my brother (HarvesteR) and i got to thinking....
give that a couple of weeks, and i got something new in mind....
i wanted the G42 to be as realistic as possible.... but i feel i have exhausted all the possible "excuses" for the realism of a DG-based craft...
so i got an adapted concept brewing for the past few weeks... it's not a total departure from the original G42... it looks a little different tho...
look:
this is basically a "stretched-out" verion of the G42-100 (the old one)...
but there are a few key differences... most notably - the variable-geometry wings...
in order to achieve optimal performance at the various stages of flight - the tip sections of the wing are z-axis-pivoted enabling the wings to work in different configurations which are best indicated for each stages conditions...
the concept is: (let me know if my "science" is too far off, k?)
in takeoff mode - the wings are flat, as to achieve the widest lift area and vertical cross-section possible
for hyper-cruise, the wings fold downward, like in an XB-70... using the lower-body shockwaves to add some lift - a "waverider" of sorts...
for reentry (assuming a 40° AoA attitude) - the wings are folded upwards, as to reduce the area exposed to the abuse of aerobraking - as well as giving us a little more "rudder", when it's so much needed
as for the engines - i'm sticking with the RAMCASTER concept - but now we have a much larger engine assembly mounted below, and a nicely redesigned intake, with a little shockwave-adapting flag up front and all...
i'm not all decided about the shape of the cockpit yet.... i guess i could still maintain the DG-like canopy with the visor (which does look very cool, i guess)
or i might scratch that and go for a more airliner-like setup....
feel free to pitch in... this is mostly brain-fart at this stage
hail the probe!
note* for those who just got here and have no idea what a G42 is and what the hell i'm talking about - look here
the latest release is: WIP 3'02
dowload from the hangar: [ame="http://www.orbithangar.com/searchid.php?ID=5456"]G42-200 StarLiner WIP-302[/ame]
for follow-ups on current progress and discussion about features, bugs and whatnot - proceed to last page :thumbup:
Edit:
New continuity to the project was granted by the act of exalted members of the human race! See: This new thread
Edited;
given the lack of conceptual stability inherent of the work-in-progress nature of this project - documentation is indeed scarce - therefore, what we have for now, is this checklist covering the most recent state developmment stage for surface-to-orbit operations
flight and systems model: WIP-303
1 - engines start
* master feed pumps - all three on
* apu feed pump - on
* apu - start
* engine mode - check EXT shown on EICAS
* burner/reheat - off
* turbine cycle - start
2 - takeoff
* canards - extended - cycle once (tap 'N' twice to clear off scenario load bug)
* visor - down
* wings - center
* burner/reheat - on
* flight controls - check
* seatbelts - fasten! :thumbup:
* throttle - crank up to 80%, allow engines rev-up - floor it!
* rotate - pitch up slowly to 10 degrees max (lest tailstrike)
* positive rate - confirm, and increase pitch for climbout
* gears - UP
3 - climbout
* burner/reheat - off
* airspeed - hold subsonic
* altitude - climb to FL350 (~10km)
* ATC - imagine yourself getting the needed clearances now
4 - supersonic transition
* airspeed - above mach .85
* altitude - approaching 10km
* canards - retract
* visor - extend
* burner/reheat - on (past mach 1.5 as required)
* throttle - 80~100%
5 - T1 (ramcaster insertion)
* flight envelope - check eicas graph converging on T1
* ramcaster doors - open
* ramcaster throttle - to 60% (where it says 'ENG')
* burner/reheat - off
* ramcaster - ignition, confirm (audible "boom" and MODE:LO shown on eicas)
* acceleration - check increased forward rate
* main eng throttle - close
* ramcaster throttle - full
* turbine cycle - cut
* main engines mode - INT
* wing position - to HPC after mach 3.5
6 - T2 (ramcaster mode transition)
* flght envelope - check converging on T2
* ramcaster mode - transition to high
* confirm transition - audible rumble sound, eicas shows MODE:HI
* flight envelope - proceed to T3
* MFDs - Orbit display, as required
7 - T3 (rocket mode transition)
* flght envelope - check converging on T3
* main fuel supply - ~80k
* oxidizer feed pumps - both on
* stby ignition - RCS on
* rcs feed pump - on
* main throttle - 25%
* engine mode - check INT on eicas
* turbine cycle - start
* gen pct (rpm) - rising
* rocket start - confirm - check tape gauge shown on eicas
* ramcaster throttle - close
* ramcaster cycle - cut
* ramcaster doors - close
* main throttle - full
* RCS mode - rotation
* orbit progress - monitor
8 - orbit insertion
* HUD - orbit
* ApA - converging on target as planned
* throttle - keep accel under 1.5G's as requred by mission/crew profile
* ApA mark reached - check
* throttle - close (engines will shutdown when in rocket mode)
* turbine cycle - cut
* master feed pumps - all off
* oxidizer feed pumps - both off
* ApA/ApT - check and monitor
* atm pressure - check surface MFD showing N/A and zero dns
* visor - down (lo and behold - you're in space!)
* RCS doors - open
9 - circularize
* ApT - minimum T-100s before mark
* stby ignition - OMS on
* oms feed pump - on
* thr authority - OMS
* oms capability - check 'OMS' shown on HUD
* ApT - hold for mark as required
* throttle - open as required
* ApA/PeA//Ecc - monitor until OMS cutoff
10 -
* bay doors - open (press 'B', switch not installed yet)
* awesome - you are now!
* drinks - on the house! (depending on program budget)
--------------- original first post ----------------
hmm... ok...
since i'm unable to contain my own A.D.D.-powered torrent of random ideas, here's the latest development of mine....
the other day i was showing the still-not-finished G42 to my brother (HarvesteR) and i got to thinking....
give that a couple of weeks, and i got something new in mind....
i wanted the G42 to be as realistic as possible.... but i feel i have exhausted all the possible "excuses" for the realism of a DG-based craft...
so i got an adapted concept brewing for the past few weeks... it's not a total departure from the original G42... it looks a little different tho...
look:
this is basically a "stretched-out" verion of the G42-100 (the old one)...
but there are a few key differences... most notably - the variable-geometry wings...
in order to achieve optimal performance at the various stages of flight - the tip sections of the wing are z-axis-pivoted enabling the wings to work in different configurations which are best indicated for each stages conditions...
the concept is: (let me know if my "science" is too far off, k?)
in takeoff mode - the wings are flat, as to achieve the widest lift area and vertical cross-section possible
for hyper-cruise, the wings fold downward, like in an XB-70... using the lower-body shockwaves to add some lift - a "waverider" of sorts...
for reentry (assuming a 40° AoA attitude) - the wings are folded upwards, as to reduce the area exposed to the abuse of aerobraking - as well as giving us a little more "rudder", when it's so much needed
as for the engines - i'm sticking with the RAMCASTER concept - but now we have a much larger engine assembly mounted below, and a nicely redesigned intake, with a little shockwave-adapting flag up front and all...
i'm not all decided about the shape of the cockpit yet.... i guess i could still maintain the DG-like canopy with the visor (which does look very cool, i guess)
or i might scratch that and go for a more airliner-like setup....
feel free to pitch in... this is mostly brain-fart at this stage
hail the probe!
note* for those who just got here and have no idea what a G42 is and what the hell i'm talking about - look here
Last edited: