Post by aerofoto - HJG Admin on Aug 22, 2011 15:35:31 GMT
I wonder if somebody has performance charts for the 880/990 model (incl. fuel burn, cruising altitudes, speeds, EPR, etc.)?
That sort of information, for these aircraft types, is incredibly difficult to obtain/source.
I was able to obtain a CV990-A manual from AIRCRAFT MANUALS ONLINE (I think it is) which, in association with other FAA TYPE documentation, assisted George in calibrating the panel gauges/FDE (performance) of these aircraft for FS for us.
PLEASE NOTE: This is information isn't realworld data. It represents FS observations only, but, being based on realworld performance data it's "pretty accurate" (given certain FS limitations) anyway .... albeit grossly in need of being rewritten in order to bring it all up to the same standard as my other aircraft type specific flying guides .... something I've just not, yet, had time to do
And here's my entire AP section from this document .... which covers virtually everything one needs to understand in order to be able to enjoy these simulations to the maximum
The AP on all HJG CONVAIR panels functions as follows ....
The AP is activated by selecting the SERVO SWITCH to "AUTO PILOT" position.
When the AP is engaged it will also hold the aircraft at whatever ROC/ROD was established at the time of its first being engaged.
During AP controlled flight the aircrafts ROC/ROD can be adjusted using the "VERT SPEED" thumb wheel. Careful mousing at the bottom of this wheel ("CLIMB" position) will set and control ROC .... and similar mousing at the top of this wheel ("DESCEND" position) will set and control ROD .... both in proportion to mouse input. Work on the theory that each mouse click of the VERT SPEED thumb wheel roughly corresponds to a command of approximately 100 FPM ROC/ROD.
To engage and hold a specific altitude the aircrafts ROC/ROD should first be set to no more than 500 FPM .... and less during the last few hundred of climb/descent toward any target altitude. As the altimeter needle/s indicate precisely the desired altitude simply mouse click the center of the VERT SPEED" thumb wheel. The aircraft should then begin to maintain altitude. The aircraft will at first drift slightly above and below the selected altitude .... this is quite normal. The aircraft will eventually settle into a perfect altitude capture after a few moments. Care should be taken to engage AP ALT/HLD mode at the precise increment of any desired altitude .... paying close attention to both the altimeter needles and the ROC/ROD gauge is essential.
To commence further climb/descent simply mouse either the bottom or top of this thumb wheel accordingly. This action disengages the ALT HLD function without disengaging the AP .... then select whatever ROC/ROD is desired by mousing either the bottom or top of the VERT SPEED thumb wheel accordingly .... as described above.
The VERT SPEED" thumb wheel will not .... intentionally .... function in manual flight mode. In this mode trim must be set manually in order to set any desired ROC/ROD. The Trim warning horn will be triggered in response to each manual input. This warning horn will not be triggered when Trim is adjusted during AP controlled flight mode.
There is an "IAS HOLD" selector on the AP mode rotary switch located the far left of the AP. This should not be engaged below 300kts. It is important to note that when engaged IAS HOLD will adjust the aircrafts pitch attitude to whatever it determines necessary in order to maintain a specific speed. Typically .... if more power is then applied the AP will increase the aircrafts pitch attitude in order to maintain speed .... and if power is then retarded the AP will decrease the aircrafts pitch attitude accordingly in order to maintain speed .... automatically adjusting the aircrafts ROC/ROD in the process.
IAS HOLD and "ALT HOLD" cannot be engaged together. One or the other mode only must be used.
IAS HOLD is not an AT .... and should not be used as such. CV880 & CV990 aircraft were not equipped with AT systems.
A large "TURN" knob is located in the center of the AP. This can be used to turn the aircraft left or right during AP controlled flight .... but only when the AP mode rotary switch is set to "TURN KNOB". It has been observed that this turn knob may not fly the aircraft through perfectly smooth turns. This is a known FS bug associated some panels. Alternatively "HDG SEL" may be used to ensure perfectly smooth turns during AP controlled flight.
If the AP mode selector switch is set to "HDG SEL" then turns may be controlled by moviong the "HEADING BUG" located on the HSI instrument on the main panel. Manually controlled turns are still possible per joystick/yoke input even during AP controlled flight, but, only when the AP rotary switch is set to TURN KNOB".
If the AP mode selector switch is set to "VOR LOC" then this will allow the aircraft to engage and track along any particular radial eminating from a pre-tuned VOR signal. VOR radials should be intercepted at less than a 20 degrees to the intended beam/course. Engaging the AP VOR/LOC at too acute an angle of intercept will cause the aircraft to weave as it endeavours to capture a VOR beam. It is always best to use HDG SEL to first allign the aircraft with any VOR signal. Once established on/or near the set beam/course then select VOR/LOC to acquire it. The aircraft may still weave slighty at first. This is a normal FS response. The aircraft will settle down to smooth tracking after a few moments.
The AP mode selector switch also features an "ILS" mode to allow coupled AP cntrolled ILS intercepts during approaches to landing. All landings should be accomplished masnually.
A cautionary red lamp (located on the top left of the main panel .... below the windshield) will be seen to flash repeatedly whenever the AP is disconnected. To cancel this lamp simply mouse click on the actual lamp to extinguish it
There are no known problems/traps with the CONVAIR panel AP .... or it supporting gauge set. This type of AP is also the same as that fitted into each of our DC8 panels.