Author Topic: ios november test  (Read 2164 times)

thierryspeth

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ios november test
« on: November 06, 2016, 02:14:45 PM »
hi everybody,
on custom mission, the p64 program does not seem to work. p63 cause a separation of the descent stage, it has to be uded only when the csm is docked but the p64 does not perform a burn, parameters used are 23 august 1976 longitude 105 latitude -18, altitude 17 kilometers phase retro
inclination 179.  seems that p64 function when speed is under 300 m/s

when reloading this custom misssion, the display of altitude and speed seems freezed, despite that the mission is ok

on the lunar orbit rendez vous tutorial , the le m meets a capsule with the 1srst stage of the saturne 5 around the moon, lot of fun ,but the sm is not here anymore.
same problem for the real apollo lm rendez vous

the csm lunar rendez vous seems unpossible p72 does not function coz the lem is more tha 500 kms away, need another program or less big distance

trans earth injection tutorial has no lem attached despite it is present in the real apollo 11 mission
this tei tut seems entirely automatical, no dsky to use, is it really program 20 running for tei ?

there is autmomatic separation of cm sm when the sm has no fuel when perfotming manual tei, should be non automatic, energy cells where needed during return to earth
« Last Edit: November 06, 2016, 04:36:42 PM by thierryspeth »

jcarrion

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Re: ios november test
« Reply #1 on: November 07, 2016, 09:45:36 AM »
on custom mission, the p64 program does not seem to work. p63 cause a separation of the descent stage, it has to be uded only when the csm is docked but the p64 does not perform a burn, parameters used are 23 august 1976 longitude 105 latitude -18, altitude 17 kilometers phase retro
inclination 179.  seems that p64 function when speed is under 300 m/s


???

Im not sure of that.  ( assuming that we are in Apollo 11/12/13 mode )  in which all the descent orbit was done once detached from the CSM.


P17 ->Sets thee Descent Orbit Inititation. For an Undocked LM , at 100km , retrogrades and sets the speed to 1400 approx.
then coast , pretty much doing nothing ... until
P63 ->Powered Descent Initiiation   Burns , and retrogrades.. until a definite ( but obscure ) sets of conditions (alt , vertical velocity ,etc ) is set.  AND the radar is getting signal .Essentially is the same inverse-gravity-turn  but P64 is based on the landing radar data ( as the lander is by then more "upstading" so the radar can reach the ground.     Then -deppending on the situation ,it will launch P66 is the terminal landing mode , in which the vertial speed is selected via the selector ( Steam only , not in mobile ),  and horizontal velocity is nulled (automatically in mobile ) till zero ..

(Further Apollo14,15,16,17) retrogrades using the Main CSM engine , till an perilune of 10km , undocks  , separates , and then the CSM refires to set again to the 100x100km orbit . , essentially avoiding the use of P17 Burn  (DOI).
« Last Edit: November 07, 2016, 10:06:09 AM by jcarrion »

thierryspeth

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Re: ios november test
« Reply #2 on: November 07, 2016, 04:43:27 PM »
You'r Right, i was able to get the p64 running, i choosed to retro fire till a speed of 300m/s and then p64 is ok.
Thanks for the informations about p 17 etc. i wil ltry these one.