Pouicpouic try on Elcano challenge

[Pouicpouic]

A new approach ? : only 1 launch for the whole challenge (failed)

Secondary objective : only one rover and only one transfer vessel (2 launches) : Done ! A GrandTour Elcano

"A rover to rule them all, a rover to find them. A rover to bring them all and in the darkness bind them."

stock + no mods

- electric propulsion only (wheels and rotor)
- carried with a single vessel (without nuclear or ion) in the whole system (so the challenge would be finished with eve ... cause it seems delicate to come back from there with the rover)

Spoiler

First craft : drag problem (reach LKO with only1100m/s left)

second craft : 1520m/s left in LKO, more than enough !

Day -2 : found the elcano challenge topic, became an instant fan xD you all are hardcore! (in a good way)

Day -1 : dozens of tests later, i thought it is possible to do it in 1 launch (edit: yes but not with the initial craft). more tests. ok i go for it.

Day 0 : ah yes I didn't think of that, and this too... more tests, more (edit : not enough...its seems)

Day 1 : starting 1/4 of kerbin KSC, north pole

Day 2 : north pole  - south pole

Day3 : Spole - KSC (crossed indian ocean at the end for some reasons that remain unclear to myself), but, Kerbin circumnavigation is done !

All Screenshots : https://steamcommunity.com/profiles/76561198022663037/screenshots/?appid=sc_578556&sort=newestfirst&browsefilter=myfiles&view=imagewall

Twitch : https://www.twitch.tv/pouicpouic73

Youtube : https://www.youtube.com/channel/UCCKUtwfa3KB-kP4_L6Yf4Vg

 

Edited August 5, 2022 by Pouicpouic

[Pouicpouic]

"A rover to rule them all"

some spec :  5 years of rover crafting for the best results !

all shrimps are empty --> structural usage only (and float) / empty shrimps are one of the best part in the game, imo, (stock+) cause of its length in relation to its low weight --> only 0,15t. So its far better than other structural parts with same size. Small air intake are just for decorative purpose. No lift-generating parts (its not a plane). 16 wheels and 2 small rotors (half power). 6.15t 2.9m*7.8m*5.2m

Need a lot of small adjusts after launch for a endurance challenge like this. Maybe I'll detail them later

Edited May 23, 2022 by Pouicpouic

[Pouicpouic]

yes... that why xD

[Rutabaga22]

Thisisawesome

[Pouicpouic]

Day 2 report :

This rover is so good !!   vast majority of time 70m/s without trouble.

My crew. Here are their heads as soon as the ground speed is different of zero...

critical moments

Spoiler

South pole reached just before 4days IGT !

Edited May 22, 2022 by Pouicpouic

[Pouicpouic]

Day 3 report : kerbin circumnavigation (mostly grounded) complete ! 60%/70% of time = fun ; 30%/40% of time = boring ^^

Spoiler

boring = mostly nothing to do... (advice for next try : more speed during boring time)

highlights: https://www.twitch.tv/videos/1490881193 (4min); https://www.twitch.tv/videos/1490888266 (2min); https://www.twitch.tv/videos/1490890801 (1min)

more content to come (screenshots and vids)

Preparing for first transfer : minmus.

[Pouicpouic]

Day 4/5 : new transfer vessel crafted, caught the rover on the launch pad --> 1500m/s left in LKO, more than enough to reach minmus (and pol from laythe ground I think).

Spoiler

 

Minmus reached.

First attempt i broke the rover just after reaching a speed of 70,3m/s (near the north pole, there is a slope of several km from 5000m height)

Spoiler

 

Lost kerbnet access during around 10 minutes. Lost 2 wheels gain... at this rate I won't have enough kits for the whole system...

but yes : Minmus polar circumnavigation done !

Grabbed the rover again for a rapid mun transfer after several days spent refueling the vessel. Mun reached. I'm super excited about doing (again) hours of driving on the mun with this rover !

Edited May 25, 2022 by Pouicpouic

[18Watt]

48 minutes ago, Pouicpouic said:

at this rate I won't have enough kits for the whole system...

Keep in mind that re-supply missions are allowed.  The requirement is that all re-supply missions must also be flown from Kerbin- you can't cheat re-supply ships to their destination.  But if you need to deliver more repair kits, that is absolutely allowed.

50 minutes ago, Pouicpouic said:

but yes : Minmus polar circumnavigation done !

Been busy at work the last few days, but I'll try to keep up with you!

[Pouicpouic]

31 minutes ago, 18Watt said:

Keep in mind that re-supply missions are allowed.

Yes thanks, but in that case my secondary objective will also fail (2 launches) --> I have enough left to repair 18 wheels at this point. We'll see, if I have to do a resupply mission then we'll move on to the third objective: one single rover xD

and it will be good... until another problem will make everything fail... and then, ... I can't remember what's my 5th goal? ah yes : elcano challenge normal difficulty ! i think this one is already perfect xD

[Pouicpouic]

I think this is the best rover I've built so far. Pure joy to drive it on the Mun. Without the propellers and without the things to float, it would be just awesome.
Well, I had some losses (reloads) mainly because of those blades breaking on excessive impacts. (they are very close to the ground to be aligned with the CoM)
I have a feeling that this circumnavigation of the mun is going to be too fast...

Spoiler

 

[Pouicpouic]

 

Edited May 27, 2022 by Pouicpouic

[Pouicpouic]

Mun done !

Spoiler

big moment of fear at the end... i braked a little late... lol

a small cliff ^^

Unplanned destruction counter : 29 (reload) Kerb12/Min3/Mun14

top speeds :
74,5m/s (land) 46 m/s (water) Kerbin
70.3m/s Minmus
71.7m/s Mun

Wheel repair : tot : 4 / 2 kerbin / 2 Minmus / 0 Mun (18 remaining in repair kits)

[Pouicpouic]

Day 8/9 :

Rover caught again and transferred to Duna.

A few months ago, I did the duna polar half-circumnavigation (equator/north pole/equator), so this time I decided to stay close to the equator. For the first time I'm going to make a "logical" circumnavigation, i.e. heading west to benefit from a very long daylight.

Interesting fact: my average speed largely exceeds the equatorial rotation speed of Duna (about 31m/s). So here, the warps are not to make the night pass, but to let Duna turn a little on itself.

The propellers work even better than expected. I was afraid to stagnate below 50m/s, but on the contrary, I have to brake permanently to avoid breaking the rover at 70m/s on the dunes.

Already more than 1/4 of the revolution done with a maximum speed of 73,6m/s reached in the grand canyon. I will make a small stop at my "W" base in a few hours.

Spoiler

 

[Pouicpouic]

Duna complete !

Rover transfered to Ike after a quick stop at the "Ike space station" just for upgrading my pilot. lvl1 --> 4, now I've finally access to the SAS fixed on the maneuver. This will be usefull.

At this point this rover has already covered by itself 8250km, which is about 30% of the minimum 27500 to finish the whole challenge. And i used 5 of the 22 possible wheel repairs (approx 23%)

Last top speed on Duna : 76,3m/s

Spoiler

Small jump at cruising speed (note : brakes activated to stop propellers when i jump)

[Pouicpouic]

Amazing max speed of 93,8m/s reached on Ike without breaking anything on the rover !

already half of Ike circumnavigation done.

[Pouicpouic]

Ike, Dres, Eeloo Completed (see the main topic for details) / Laythe in progress (3/4 done)

Top speeds : Ike 93,8 / Dres 60,8 / Eeloo 85,1 / Laythe land 76,2 water 40

Already 14 out of 40 repairs kits used / 13 000 + km out of 27 000km+ done / 7 transfers out of 15

Around 53m/s overall average speed

Edited June 19, 2022 by Pouicpouic

[Pouicpouic]

Elcano
	diam (m)	peri (km)	total% circu	km estimés	km	sur eau	Vmax (m/s)	km/h		Vmoy estimée (m/s)	Temps a vmoy (h)		IGT (jours théoriques)
Kerbin	600000	3770	1,05	3958	0,3	1187	74,5	268		57	19,3		3,21
Minmus	60000	377	1,04	392		0	70,3	253		55	2,0		0,33
Mun	200000	1257	1,08	1357		0	72,6	261		50	7,5		1,26
Duna	320000	2011	1,2	2413		0	76,3	275		53	12,6		2,11
Ike	130000	817	1,1	898		0	93,8	338		62	4,0		0,67
dres	138000	867	1,02	884		0	60,8	219		45	5,5		0,91
laythe	500000	3142	1,04	3267	0,72	2352	76,3	275	40	44,4	20,4		3,40
pol	44000	276	0	0		0		0					0,00
tylo	600000	3770	0	0		0		0					0,00
bop	65000	408	0	0		0		0
vall	300000	1885	0	0		0		0
eeloo	210000	1319	1,05	1385		0	85,1	306		60	6,4		1,07
moho	250000	1571	0	0		0		0
gilly	13000	82	0	0		0		0
eve	700000	4398	0	0	0,3	0		0
							76,2	274		53,3
							moy
TOT mini		25949		14556	total km	3540					78		13
TOT approx		28284		51,46 %	total challenge					+ echecs	6,6
										+ transferts	8
				35,00 %	total used repairs kits					+ res kerbnet	18
										+ crafts et test'	10
										TOTAL ELCANO	120,4	h

[Pouicpouic]

New overall top speed : 126,5m/s

[Pouicpouic]

again ! no losses 133.2 m/s. My PB on Tylo, but not global PB (139+ on vall)

[Pouicpouic]

143.3m/s ! amazing   new overall PB without breaking the rover

Edited June 20, 2022 by Pouicpouic

[Pouicpouic]

Challenge completed (see main topic)

Some specs :

Elcano Challenge	diameter (m)	perimeter (km)	%circu	km estim	Max Speed (m/s)	AvSpeed estim (m/s)	Minimum dur. (h)	IGT (Days)	Fun /10*
Kerbin	600000	3770	1,06	3996	74,5	57	19,5	3,25	8* (7)
Minmus	60000	377	1,05	396	70,2	53	2,1	0,35	2
Mun	200000	1257	1,08	1357	72,6	50	7,5	1,26	10
Duna	320000	2011	1,2	2413	76,3	53	12,6	2,11	7
Ike	130000	817	1,1	898	93,8	62	4,0	0,67	6
Dres	138000	867	1,02	884	60,8	43	5,7	0,95	5
Eeloo	210000	1319	1,05	1385	85,1	57	6,8	1,13	5
Laythe	500000	3142	1,04	3267	76,3	44	20,6	3,44	7* (4)
Pol	44000	276	1,2	332	35,5	22	4,2	0,70	1
Tylo	600000	3770	1,06	3996	143,3	71	15,6	2,61	8
Bop	65000	408	1,2	490	54,4	33	4,1	0,69	2
Vall	300000	1885	1,12	2111	124,0	56	10,5	1,75	7
Moho	250000	1571	1,12	1759	104,3	43	11,4	1,89	4
Gilly	13000	82	1,08	88	13,5	9	2,7	0,45	0
Eve	700000	4398	1,06	4684	74,6	45	28,9	4,82	6
TOT mini		25949		28057	total km	49,9	156,3	26,0	*not counting
TOT approx		28025		100,1 %					water time

[Vagrant203]

On 5/31/2022 at 5:02 PM, Pouicpouic said:

quick stop at the "Ike space station" just for upgrading my pilot. lvl1 --> 4

This is why I always tick on "Kerbals level up immediately."