iniBuilds T-33 Jet Trainer

What is it?

Forward stick (down elevator) has no effect - i.e. you cannot push the nose down. There’s a typo in the flight_model.cfg that was not there before.
Makes you wonder about testing


If you feel comfy - open the flight_model.cfg, find the line (#177) that says:

elevator_down_limit =1.5

and change it to :

elevator_down_limit =15

And voila


Other aspects of the update (visuals, cockpit) sound promising, though.

6 Likes

Not being able to steer the aircraft properly sounds pretty critical to me !

I haven’t purchased it yet and looks like I still should wait quite a bit.

Really?! How does something like that make it into a release candidate? I mean, this is something that should be apparent after just one (attempted) flight. You’d think doing at least one test flight would be mandatory after making any changes to the flight model.

1 Like

Thanks very much for highlighting this issue.

For sure, flew RAF Brize Norton to Farnborough without any issue.

Was this with the new Ini update and without any manual correction of elevator file?

Just Had a 1 hour flight with the latest update, (no mods) and had no problems with pushing the stick forward. Very enjoyable.
Mick

6 Likes

With the latest update. I just flew VQBT Bumthang to VQPR Paro without a problem. I can confirm nose down is limited, but pushing a bunt isn’t something you want to do normally, the aircraft is quite willing to drop its nose without much effort by reducing power or trimming or a rolling descent, either way it never feels uncontrollable. Of course this minor error of a decimal place is wrong but hardly worth throwing the baby out with the bath water.

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Anyone else have issues with the iniBuilds manager? I can’t download or update anything?

Working for me.

I restarted my computer

Decided to buy it and it flies OK for me.

1 Like

Much better handling on landing! Didn’t have any pitch problems that I noticed.

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Does this livery still work with the new version, or will you update it, if it doesn’t? Even with the new version there doesn’t seem to be anything that beautifully shiny in the default liveries.

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It still works and looks absolutely glorious in the sim =)






Btw. I think the current flight model is quite good overall. At low speeds you can push the nose down quite far, only at higher speeds you’ll notice the lack of elevator down authority. But since you would never do negative g maneuvers with a T-33 you won’t notice it during normal operations.

8 Likes

Think the lack of elevator authority at speed might be authentic.

From Barry Schiff’s pilot report in AOPA Pilot:

Although I had no desire to observe it, high-speed compressibility at high altitude causes airframe buffeting, reduced elevator effectiveness, and Mach tuck—a nose-down pitching moment that compounds these problems. The trick is to avoid Mach 0.80 above 30,000 feet.

Italics mine.

The POH (1951 revision) notes:

2-36. The elevator tab should be used with caution, especially at high speeds.

All of which seems consistent with the small tail surfaces and the lack of a flyable horizontal stabilizer.

Still haven’t had a chance to try the update but interested to know if those observations make sense.

Hi all, this is Eddie from IniBuilds popping in to dispel some myths and misconceptions seen here as well as give some move insight into the T-33 update and flight model revisions we made.
As you can imagine, we don’t approach this process haphazardly, nor do we “guess the numbers” when making updates.
We are incredibly lucky to have engaged and worked with Greg Colyer, the foremost real-world T-33 expert and pilot, to helped verify our data as well as provide unmatched insight into the airframe and its quirks. I can assure you we combed over a significant amount of reference material and NASA/Manufacturer documents to get behavior as close to possible to reality within the limits of the FS engine.
Its also helpful to remember the T-33 isn’t a high-alpha fifth gen fighter. It’s built off the back of the very first jet-age platforms and still maintains a lot of P-fighter characteristics and limitations.
if you expect it to fly like an F-16 and treat it as such you’ll die (or at the very least be disappointed) :wink:

Where I am sure many questions arise is when the topic shifts to comparing the “feel” (such a strange benchmark in a desktop based platform) of the update vs. version 1 and some 3rd party FM modifications many have used. While it is always amazing as a contributor to see how passionate simmers become regarding their favorite airframes, at times that passion gets at odds with hard data and verifiable parameters regarding the flight envelope. As we posted in our “deep dive” on our forum, the ‘realism’ mod should be removed prior to updating and flying. We took a look through the values there and they don’t really align with the data we have.
Despite that, I can assure you the values present in the updated config file are correct and no decimal error has slipped through. While some may assume we don’t test these products, I can assure you we spend hundreds of man-hours verifying and rechecking updates and have an extensive method in place to ensure that sort of thing doesn’t happen.

Ultimately, we want you to enjoy our products as well as feel confident we both meet expectations of quality while also taking in feedback of the community. We’re very happy with the overall response to the T-33 and are looking ever forward as we refine the addon and get it to be one of the planes in your hangar you turn to the most!

Thanks!

26 Likes

Will the T-33 eventually make it to the Marketplace or will it have to be purchased directly?

Hey Eddie! Thanks much for popping in here.

Really enjoying the T-33, especially with the update. Great job on the Thunderbird “metal” update!

The updated flight modeling feels really good, and years of experience with sim fans expectations vs reality definitely make me give y’all the benefit of the doubt given your access to a real T-33!

The one area where it still feels a bit off compared to the pilot reports I’ve read is the engine response. I read about how slow response to throttles is why landing is done with everything out (flaps, gear, brakes) and throttle at 70%. But I find the throttle spools from low power to full in just a few seconds, which seems unrealistically responsive?

I appreciate the work on the decals; with the V1 we ended up with paints that had the roundels for Canada in the wrong place and shrunk due to mirroring not allowing the text by the roundel:

But one issue that seems to persist with the current setup is the inability to do camouflage schemes that aren’t symmetrical due to the places where textures are still mirrored.

Anyway, all minor stuff. This is a really enjoyable plane to fly, and the visuals and sounds are absolutely wonderful! The minor nitpicks are because it’s so good we want it to be even
 gooder. :slight_smile:

Keep up the great work! Appreciate Ini’s quick response to community feedback with V1.1.

2 Likes