Huey EGT limitations... Test Flight...

[DSPALLASVI]

Ah, thanks for the corrective message, I wasn't aware they were that far out!

Will still make the triggers but, just like you said, only as a Mission Editor training then...

By the way, given your example,

Std day, 15°C, QNH 1013/760/2992, wind 090/6kts

Hover OGE, alt 100ft

GW: ~4200kg/9200lb

what could be the correct number?

[iFoxRomeo]

Ah, thanks for the corrective message, I wasn't aware they were that far out!

Will still make the triggers but, just like you said, only as a Mission Editor training then...

By the way, given your example,

what could be the correct number?

That´s not easy to answer. I don´t have temperature charts for the engine.

But from the charts I have and after interpolating forward and back:

 

Std. day-> HOGE @ ~7200ft altitude, +/-0°C OAT, @4200kg, the engine should be just before passing 610°C.

 

Fox

[DSPALLASVI]

Might be an idea to get used to flying this Huey with all it's "restrictions"; including the observation that the EGT's are waay too critical compared to the RL Huey.

That way when the EGT etc. does get fixed, it will be like flying with an extra bonus....:thumbup: You'll be comfortably within the limits then :):megalol:

[iFoxRomeo]

As promised, reporting back with the link to the more current release of the -10 manual

 

Here in the forum. Credit goes to user Griffin.

 

Fox

[DSPALLASVI]

Thanks for the manual!! Good timing!

Edited May 24, 2015 by DSPALLASVI
Added

[flying rabbit]

Good manual, but there are no infos about failures and exceeded egt in there. Are there some news on this topic? A statement from belsimtek?

[QuiGon]

Good manual, but there are no infos about failures and exceeded egt in there. Are there some news on this topic? A statement from belsimtek?

 

The latest I've heard is this Belsimtek-PDF: http://www.belsimtek.com/upload/docs/development-tasks.pdf

Edited March 24, 2016 by QuiGon

[j0nx]

I have to admit that I won't buy another module from these guys until they fix the issues with the Huey. Don't get me wrong I love the Huey but it is certainly not modeled correctly in many aspects from throttle at startup to EGT and I don't recall a Huey ever being able to do a loop which I was successfully able to do a few months ago :huh:.

 

Still fun to fly and remains my favorite helicopter for DCS but still not realistic at all which to me was at first very disappointing and still remains a great letdown.

Edited March 24, 2016 by j0nx

[TAnker737]

The latest I've heard is this Belsimtek-PDF: http://www.belsimtek.com/upload/docs/development-tasks.pdf

 

Good find Thanks

[DSPALLASVI]

UH-1 Upgrades...

From the same .pdf that 'TAnker737' mentioned...

[flying rabbit]

I have to admit that I won't buy another module from these guys until they fix the issues with the Huey. Don't get me wrong I love the Huey but it is certainly not modeled correctly in many aspects from throttle at startup to EGT and I don't recall a Huey ever being able to do a loop which I was successfully able to do a few months ago :huh:.

 

Still fun to fly and remains my favorite helicopter for DCS but still not realistic at all which to me was at first very disappointing and still remains a great letdown.

I think the looping will be gone if belsimtek implements the torque limit for the rotor.

[j0nx]

These are not things that should be that difficult for them to do. The difficult parts like the models, controls, etc are already done so this is just modification to the flight dynamics and engine management. I honestly don't understand why they haven't done them and completed this module after this many years??

[gunterlund21]

Hi all

Very interesting topic here. Is this issue relevant to the Mi-8 and Ka-50 as well. Not implemented their either?

[msalama]

AFAIK the Shark has a heat-induced damage model, and IIRC some recent(ish) changelog stated that the Hip APU got one as well, but I'm not sure about its main engines. The Huey, OTOH, is regrettably still lacking it after all these years.

[Chipwich]

I've been trying to keep EGT in the green arc, but wow, using the engine de-icer as you do with the Medevac campaign mission1 and it's a challenge. That must raise EGT by 10-15%. The pitot heater is all but useless as well. Wonder if that is acccurate.

 

Sent from my SM-N910V using Tapatalk

[Rogue Trooper]

Hi all

Very interesting topic here. Is this issue relevant to the Mi-8 and Ka-50 as well. Not implemented their either?

 

I had some problems with engine failure in Nevada whilst hover attacking in the Kamov one sunny day (38 degs C at altitude). The Hip engines also seem to work very hard in these dry and hot conditions.

[Chipwich]

One more question for you Huey drivers, how common IRL is it to venture north of the EGT green arc? In other words, at higher altitudes or at high density altitude it seems almost impossible to takeoff and hover with a full load while keeping the needle inside the green arc. I see yellow and red marks. Is it common to operate in this area for short periods of time? TIA

[BSS_Sniper]

Might be an idea to get used to flying this Huey with all it's "restrictions"; including the observation that the EGT's are waay too critical compared to the RL Huey.

That way when the EGT etc. does get fixed, it will be like flying with an extra bonus....:thumbup: You'll be comfortably within the limits then :):megalol:

 

Just for those that are interested, those restrictions are called "limitations", specifically "engine limitations". If you're trying to look up things of that nature it would help to use those terms. Just some FYI. :thumbup:

[RabidRider]

UH-1 Upgrades...

From the same .pdf that 'TAnker737' mentioned...

 

A pity I don't see anything about the specularity map of the Huey cockpit.

 

Would guess that this isn't that hard to fix. The map is there, it just isn't working.

 

http://forums.eagle.ru/showthread.php?p=2733822#post2733822

[msalama]

One more question for you Huey drivers, how common IRL is it to venture north of the EGT green arc?

 

Not too:

 

EGT Continuous

 

400-610

 

 

 

 

EGT 30 Minutes

 

610-625

 

 

 

 

 

EGT Maximum 30 minutes

 

625

 

 

 

 

 

EGT 10 seconds starting and acceleration

 

625-675

 

 

 

 

 

EGT 5 seconds starting and acceleration

 

675-760

 

 

 

 

 

EGT Maximum

 

760

 

 

 

Source: https://quizlet.com/5926300/uh-1-ops-limits-flash-cards/

 

Compare those values with what you see in the sim and you'll notice that our chopper is way, waaay off.

[Chipwich]

Not too:

 

EGT Continuous

 

400-610

 

...

 

 

Source: https://quizlet.com/5926300/uh-1-ops-limits-flash-cards/

 

Compare those values with what you see in the sim and you'll notice that our chopper is way, waaay off.

 

That's very helpful msalama. Thanks for linking. Probably the one that I would use most is EGT 10 seconds starting and acceleration 625-675. Good to know that you have a wee bit of time out of the green if needed.

 

Edit: Are you saying that the sim is way off in that a pilot doesn't pay a penalty for going out of the green, or that the EGT modeling doesn't appear correct? Anyway, I plan to respect those numbers in a quest for keeping it "real".

Edited April 11, 2016 by Chipwich

[msalama]

Edit: Are you saying that the sim is way off in that a pilot doesn't pay a penalty for going out of the green, or that the EGT modeling doesn't appear correct?

 

Both. First, our Huey has no temperature-induced damage model whatsoever. Plus it seems our engine is underpowered too, so we're getting overtly high EGT values for corresponding collective settings vs. the real thing.

 

BST has said they're going to rectify these errors, but it has been this way for years already. So here's hoping that they eventually get around to fixing them actually ;)

[BSS_Sniper]

Both. First, our Huey has no temperature-induced damage model whatsoever. Plus it seems our engine is underpowered too, so we're getting overtly high EGT values for corresponding collective settings vs. the real thing.

 

BST has said they're going to rectify these errors, but it has been this way for years already. So here's hoping that they eventually get around to fixing them actually ;)

 

I'm glad this thread is going. It's something I've noticed long ago and have been really annoyed with. There are too many times that you have to fly way out of limitations as far as the EGT is concerned to get and stay airborne in the Huey. There is no damage modeled what so ever. You can fly as far out of the green in the EGT for as long as you want and nothing will happen. I really hope they fix these issues. the Huey is my favorite.

[msalama]

I really hope they fix these issues. the Huey is my favorite.

 

+1 :thumbup:

[DSPALLASVI]

Made the EGT triggers in this thread's post # 1 (which was DCS v 1.2* at the time) for EXACTLY that same reason; find that they still work in / with DCS 1.5 (May 06, 2016)...

 

It's quite simple, you'll loose your engine when your EGT is outside it's recommended temperature range AND time frame!

Of course there's no external damage to be seen when you fly with EGTs out of the appropriate range, nor will there be an indication on your gauges, but you'll kill the engine nonetheless with these triggers...

First thing you'll notice is the noisy audible alarm coming on, and around the same time, a nose yawing noticeably to the left...

 

With these 'EGT' triggers in place, now I always check the EGT & Torque gauges immediately after ANY power changes I've made... making sure they're still within the limits.

 

Have attached here three pics;

- The first two show the triggers' 'EGT range / Time frame' settings,

- and the third shows the EGT Triggers' ranges that I have used, taken from the official (RL) Huey Manual.

 

Note: Just flew a DCS 1.5 flight before posting this and, when the EGT was above 675° for 5 seconds for example, the engine simply quits.... and now you're practicing full-down auto-rotations...

 

Edit 1: Ignore the "Message to Group" in the "Actions" column, as that was only used to test out the 'EGT' triggers...

The reason for the "message" was, so that I was notified which trigger was activated and at what time, while flying.

The message is not needed when implementing these EGT triggers in any mission, as these Triggers just sit there in the background... simply waiting for the pilot to violate the EGT ranges :music_whistling:

 

Edit 2: Just in case 'BSS_Sniper' gets into a tissy again:), the EGT ranges I mentioned above, are LIMITATIONS.. to be even more specific, they're 'ENGINE LIMITATIONS' :thumbup:

But keep in mind, they're engine limitations within the frame that we use Belsimtek's Huey.... i.e. now you can choose to fly outside of the EGT limitations, but you''l be paying a price for it. :gun_sniper::smartass:

 

Maybe check your 'weight & balance' and fuel load against the mission's needs...:music_whistling:

Edited May 7, 2016 by DSPALLASVI
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