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Thread: RAZBAM Harrier WIP

  1. #16
    Quote Originally Posted by ZEUS67 View Post
    I will say this. All my modules unless otherwise specified are .dll files using SimConnect and C++. As many others have said, FSX is a very robust software and SimConnect enables me to do a lot of things that many people believe it is impossible. The only problem is that many of these "hooks" are undocumented, that is one have to search and hit one's head on the FSX ceiling in order to find what it is possible or not.
    This is the reason why all the latest RAZBAM's release have ordnance management and release in free flight, including a fully working cannon or machine gun. With real bullets flying away from the aircraft and hitting terrain or buildings.
    I've not developed guided weapons, because of lack of time to develop a fully working radar. The tools are there, but it takes time to create one.
    I've been coding software for a living for over 20 years, so coding using simconnect is not a problem. I don't use Rob B's gauge because I like to know what my software is doing. So I looked and arrived at my own solution. It works and I feel it gives a better feel of vectorial thrust for this particular aircraft. It took me nearly 3 months and many dead ends to arrive at this solution.
    I do tip my hat towards Rob B's, his solution works and that says a lot. You have to be on these shoes to understand the problems regarding vectorial thrust and fsx.
    Regards
    thanks for prompt answer,
    it sounds clearer now, so the matter is shifted to the DLL's side that sounds reasonable.
    However outstanding Rob's work can't work alone, it needs a SSW dll module either.
    Yes SimConnect permits you a lot of things limited only by your fantasy, however as you know nothing is costless, what about multiplayer environment ?
    Do you claim weaponering works also in MP with no side-effects ? or as others publisher you are not interested so much into this not commercial-appealing field ?
    cheers
    /Mario
    BTW:
    I don't need to be on Rob's shoes to understand vectorial thurst related problems mainly for two reason: i have worked side by Rob to make the vtol gauge and the companion dll, second, it's not my merit, but only my age, I have coded in C/C++ since the early eighties of unix and linux then and now, alas, even for Window$.

  2. #17
    Quote Originally Posted by Lateral-G View Post
    will it hover?
    Yes. It can hover. NO the aircraft was not made to hover. In fact the DO NOT HOVER warning comes out so many times in the NATOPS manual that I feel it is almost like a joke. It does have a HOVER mode but it is made for actually hovering but for STOL situations.

    I am going to follow the manual and if you use that aircraft to hover beyond the time limit explained in the manual you can say sayonara to the engine.

  3. #18
    Quote Originally Posted by ZEUS67 View Post
    Yes. It can hover. NO the aircraft was not made to hover. In fact the DO NOT HOVER warning comes out so many times in the NATOPS manual that I feel it is almost like a joke. It does have a HOVER mode but it is made for actually hovering but for STOL situations.

    I am going to follow the manual and if you use that aircraft to hover beyond the time limit explained in the manual you can say sayonara to the engine.
    As the A-7 does...another bird built around the manual....me likey!

  4. #19
    Great!

    Thank you!



  5. #20
    Quote Originally Posted by ZEUS67 View Post
    Yes. It can hover. NO the aircraft was not made to hover. In fact the DO NOT HOVER warning comes out so many times in the NATOPS manual that I feel it is almost like a joke. It does have a HOVER mode but it is made for actually hovering but for STOL situations.

    I am going to follow the manual and if you use that aircraft to hover beyond the time limit explained in the manual you can say sayonara to the engine.
    Still odd,
    i can't see any part of NATOPS manuals, from A1-AV8BB-NFM-000 (aka dash-0) trough A1-AV8BB-NFM-700, where hover is discouraged or worse deprecated.
    Hover is a fundamental part of offshore procedures, as stated in NAVAIR-00-80T-xxx manuals series.
    Dash-0 has a paragraph dedicated to hover:
    7.6.3 The Hover
    The hover may be entered from a decelerating transition or a VTO. It is an interim period during which the aircraft
    is held relatively stationary at an altitude of 50 to 60 feet AGL.
    1. Control height with small throttle changes.
    2. Maintain position with ground references.
    3. RPM/JPT — WITHIN LIMITS.
    since hovering requires high power settings there are obviously some rpm/jpt/time limits as showed into below figure, within these limits hover is allowed and can be done without limitations.
    May be you are using different flight/technical manuals ?
    cheers.
    Click image for larger version. 

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  6. #21
    Quote Originally Posted by LUCE1 View Post
    Still odd,
    i can't see any part of NATOPS manuals, from A1-AV8BB-NFM-000 (aka dash-0) trough A1-AV8BB-NFM-700, where hover is discouraged or worse deprecated.
    Hover is a fundamental part of offshore procedures, as stated in NAVAIR-00-80T-xxx manuals series.
    Dash-0 has a paragraph dedicated to hover:

    since hovering requires high power settings there are obviously some rpm/jpt/time limits as showed into below figure, within these limits hover is allowed and can be done without limitations.
    May be you are using different flight/technical manuals ?
    cheers.
    Click image for larger version. 

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    Don't confuse hovering - maintaining a stationary position in the air - with vertical take-off and landing. Those are different procs. The aircraft was built for VTOL and STOL. Although STOL is preferred, less strain on the engine. Hovering is a different beast and the strain in the engine is too much. If I recall correctly engine life when hovering can be counted on minutes. There is an entire section regarding VTOL and STOL operations and those stress the DO NOT HOVER line.

  7. #22
    @LUCE1, you are correct. I was misreading some warnings. But the main thing is that hovering is a transitional period while doing vertical take-off and landings. Specially on landings. But the engine life issue, still stands.

    408 Engines have a medium life of 1000 hours or 50,000 counts. Hovering uses aprox 1,500 counts per minute since the engine is near the red line. You are losing 30 hours of engine life for each minute of hovering.

  8. #23
    Quote Originally Posted by ZEUS67 View Post
    Don't confuse hovering - maintaining a stationary position in the air - with vertical take-off and landing. Those are different procs. The aircraft was built for VTOL and STOL. Although STOL is preferred, less strain on the engine. Hovering is a different beast and the strain in the engine is too much. If I recall correctly engine life when hovering can be counted on minutes. There is an entire section regarding VTOL and STOL operations and those stress the DO NOT HOVER line.
    Not confusing at all.
    Leave aside the vertical takeoff evidently not needed for operational activity and that is mainly used in air shows.
    I think it's pretty obvious that the subtle difference that you do between hover and VL is specious, it is clear that making a vertical landing is necessary to hover, just think of the deck landing procedures (hover and cross).
    Well in paragraph 7.6.4 of the dash-0 that covers the VL on p. 7-49 there is no mention of "DO NOT HOVER":
    7.6.4 Vertical Landing (VL)
    The vertical landing, Figure 7-4, is commenced from a 50 to 60 foot AGL hover. Landing should be made pointing
    into the wind to minimize exhaust reingestion.
    1. Start a slow descent with the throttle.
    2. Monitor ground references.
    3. Maintain heading and adjust attitude and roll as necessary to correct for drift.
    4. Maintain positive rate of descent. Avoid stopping in ground effect. Some throttle reduction may be required
    if descent rate is slow since the aircraftwill tend to stop in the area ofmaximum LIDS capability (5 to 10 feet).
    Additionally, surface winds in excess of 10 knots may degrade LIDS performance and may require a
    corresponding coarse power correction just prior to touchdown.
    Note
    If strakes or gun pods are not installed some suck-down effect is present.
    A power increase may be required near touchdown to prevent excessive
    sink rate.
    When positively down:
    5. Throttle — IDLE.
    6. Brakes — APPLY.
    7. Nozzles — AFT.
    8. Trim — 4° ND.
    9. Water OFF (if selected).
    below 7-4 figure "Vertical landing"
    Click image for larger version. 

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  9. #24
    Quote Originally Posted by ZEUS67 View Post
    @LUCE1, you are correct. I was misreading some warnings. But the main thing is that hovering is a transitional period while doing vertical take-off and landings. Specially on landings. But the engine life issue, still stands.

    408 Engines have a medium life of 1000 hours or 50,000 counts. Hovering uses aprox 1,500 counts per minute since the engine is near the red line. You are losing 30 hours of engine life for each minute of hovering.
    sorry we cross answers.
    However the only drawbacks to hover is a in-ground-effect hovering to avoid engine gas and/or FOD ingestion as reported by AFM.
    About engine life no problems a s long you stay below rpm/jptl limits, engine life interest also other fields such as combat etc..
    cheers

  10. #25
    Charter Member 2011 Prowler1111's Avatar
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    Some pics on latest developments
    A/A Radar almost ready:
    Click image for larger version. 

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    RWS = Range While Search. Targets are displayed but not tracked.
    TWS = Track While Scan. Targets are tracked. Vector information is displayed. it is possible to lock on a target and attack it.
    VS = Velocity Search. Targets are displayed regarding closure rates.
    STT = Single Track Target. A single selected target is displayed. All the others are disregarded and the radar screen uncluttered. Steer instructions are displayed. All these modes will be available.
    A/G radar is next, as well as in-built FLIR

    Some exterior pics:

    Click image for larger version. 

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    Click image for larger version. 

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    Click image for larger version. 

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    Best regards

    Prowler

  11. #26
    Looking fwd to it Ron ;-)


    Best
    DagR

  12. #27
    And I quote Ron, from this last weekends facebook page, that the harrier is due out in less than 20 days.

  13. #28
    SOH-CM-2013 hae5904's Avatar
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    Here a couple of repaint WIP shots.......






    Cheers,
    Hank

  14. #29
    Quote Originally Posted by Warhawk1130 View Post
    And I quote Ron, from this last weekends facebook page, that the harrier is due out in less than 20 days.
    Awesome...

    -Damien

  15. #30
    Just wondered if there has been any news on this project?

    Matt

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