A little bit of nose up trim helps. In the Justflight forum a value of 2.0o was suggested. The POH only states that nose up trim should be applied in accordance with take off weight, so the 2.0o degrees is only a typical value.
How is nose up trim going to affect a sudden left turning bump at exactly 70 knots? Every time.
Yes, I normally do dial in a bit of nose up trim anyway. Required in a Cherokee style plane.
But trim only lessens the front to back forces on the yoke, it’s not going to change the flight characteristics. Without a little nose up trim, you just need to put a little more force in the yoke to get the nose up.
But, nose up trim or not, liftoff normally happens right around 70 knots. It’s not right that it’s there no matter what the trim setting is.
As I noted, I realize Asobo recognizes there’s issues in this regime. The point is, the problem is there.
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Good question. I believe it had to do with less pressure on the wheels. The Piper has a bit of a nose down attitude, so as you gain speed the pressure on the wheels increases, and the effect of engine torque as well.
But please check the Justflight forum, there are some knowledgeable people there. This is the relevant post:
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That’s interesting, but there’s something else going on.
Most of my hours are in Cherokees (and now Warriors), with some hours in Arrows. Not that I’m any kind of expert here, but I do have over 130 hours in Cherokee style planes. Nothing like that happens no matter what the setting of elevator or rudder trim, even in a crosswind. Granted, you can feel the plane in real life, so rudder feel is easier, but, still. I do tend to dial in a rudder trim, but never touch it again once I set it. Elevator trim is something you are constantly changing, and I do dial in some up elevator on takeoff to keep the transition smooth without needing much force on the yoke. But I’ve never felt a sudden veer to the left or right no matter what the elevator or rudder trim is set at. And it happens at exactly 70 knots every time.
As I noted, I imagine it is somewhat beyond JustFlight’s control as Asobo has said they have more work to do. I was just talking about my experience with the addon, and my only complaint about it.
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There are some Piper pilots in the forum so you could ask there. I sincerely hope the real plane does not vere off to the right if you do not set the trim! Hopefully the real plane is more well behaved and what we see in the sim is an exaggerated effect, ie flight model issue.
very soon early july, the piper ii warrior form justflight will be out…also interesting, lol
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As I noted, I am a Piper pilot. I owned a Cherokee for many years, and hope to purchase another soon (or perhaps a Bonanza, or a Grumman Tiger, or a Piaggio P.149, or… ), and I’m type rated in the Arrow, and currently renting Warrior II’s and III’s. In fact I’m scheduled to go flying again on Saturday (I hate having to rent, especially from an organization that also uses the planes for flight training. Sometimes I just want to go flying when I want to, having to schedule a week or so ahead is such a pain.).
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I’m very happy about that, since that’s what I’m renting right now…
Sorry, I did read that. What I was meaning to say was that there are some Piper Arrow pilots on the Justflight forum.
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I’d say the JF Arrow trio. Contrary to some of the posts I’ve read, the non-turbo Arrow is great for flying below 10,000 feet. If you fly in mountains, or if your home strip is in elevation (like KCOS) the Turbo Arrows are the way to go.
Honorable mention should go to the Carenado Mooney, and to the Seneca V as well.
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I agree. The Turbo is great on long hauls or anywhere there is low level icing or mountains to climb over but if your wandering about the Caribbean at 2500 ’ there is no significant benefit to the Turbo models and a very real risk you will break them as, with a fixed wastegate, overboost is really easy to do at low altitude. It is nice to have a choice.
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Thanks so much for the responses everybody! I’m looking into the JF Arrow now and it looks ■■■■ phenomenal. I think this is exactly what I’m after.
I’m gonna keep an eye on the Jabiru just because I’m from Australia and its a local aircraft I’ve flown and love!
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The Arrow is another level again but the Jabiru is also a worthy investment.
Why not get both? The jabiru is on special at Orbx at present for $24.50 AUD … ( though you might have to pay GST on that due to that idiot Gerry Harvey )
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The Just Flight Piper Warrior should be out in the next few weeks as well and there seems every reason to expect it to be as well produced as the Arrows (and Arrow owners will get a 25% discount).
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I was considering giving this one a miss, but with 25% off that makes it more attractive.
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Yeah I’m very torn. Part of me thinks have enough PA aircraft but also, the main disabled pilot school in the UK if I ever was to learn uses a Warrior so could be useful. Think will see how much is at time and the reviews but it’s hard to resist these level of products especially when they are valued so well
Once people start flying the Warrior II it will be interesting to see how many wheels up landings we get when they fire up one of the Arrows - the cockpits are very similar 
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Not only the rebate is tempting, the Warrior also is different enough from the Arrow to get it in addition.
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That’s the bit I am unsure about. Its very similar, and the differences make me wonder how often I’d actually fly it.
I’d prefer it if JF didn’t just slavishly “port” over all their old stuff, and work on something new, even if we have to wait longer for it. But it’s likely to be around £20 with discounts, and that’s difficult to argue about.
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The main reason I will buy it is the fixed gear. Having two very similar aircraft, one with RG and one without is good practice for always remembering to check the gear in real life.
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