[New] Bombardier Dash 8 Q400 Aircraft Guide

Ok good question. The idea of going faster for gusts is a good rule of thumb for any airplane. The way I’ve always looked at it is ‘add half the gusts to your final approach speed’. (Never heard of wind direction playing a part in this) So if the winds are 20G28, you could add 4kts. This is just what I’ve heard though, there might be other little tricks out there

But if you’re landing flap 15, you’ve already added 10kts so I wouldn’t touch that or else you’ll be too fast. Flap 35 however, you might want to add that gust factor. This is all technique though, and completly up to you. at the end of the day the idea is just don’t go below Vref, and if that means you need to add half of your gusts to your speed, by all means go for it.

3 Likes

Amazing work. Thank you VERY much for bringing our DHC 8 Q400 back to life !

Along with the ATR family, Q400’s are my favorite planes to fly as passenger. One of the rare commercial craft offering to actually feel you’re in the air. Also generates far less concerning cruise anxiety compared to the Dorniers 228 back in the days…

Had the chance to travel in those a few times with Olympic, Horizon, Wesjet, Tyrolean, and others.

Let’s hope one day ATR’s and DHC’s have the opportunity to be introduced / reworked in IF.
Until then, your hard work is an invitation to fly the Q400 more.

1 Like

Hey @Cody_M!

Thanks again for the amazing guide! I had some questions though.

I’m currently flying a real-life Jambojet route between Nairobi (HJKJ) and Lamu Island (HKLU) and I was wondering what altitude you’d recommend me to fly, considering that the route is 260 nm long.

IRL pilots say they fly at FL190 but this seems incredibly low. And they might be speaking in ft and not FLs, as HKJK is 5.330ft ASL it would mean an altitude of 24.000ft.

Hopefully what I said was clear and that you’ve got enough info to guide me through my flight 😁

2 Likes

If you want my honest answer I’d just say don’t worry too much about it. There’s no right or wrong answer. For a flight that long and considering it’s an eastbound flight, FL250 (25,000’ ASL) is probably where I’d look first but you could realistically go as low as FL190 depending on winds and other factors.

Sorry to be vague but there ya go, let me know if you have any other questions :)

1 Like

Thank you very much for your answer!

1 Like

Hey, great tutorial, I was just wondering about the climb profiles for the Dash-8, I noticed that you vaguely mentioned a high speed and a low speed climb, do you have any information on what that would look like? Even a rough estimate helps.

I’ve noticed that there are climb profiles in types for the Dash-8 through simbrief

Type-1 850
Type-2 850
Type-3 900 etc.
Do you have an idea what these mean?

3 Likes

Thanks for the great question. I’ll just let you know right off the bat that if you’re using simbrief, use type ii-900 climb

The climb type refers to the speed of the climbout. i being slow and iii being fast.

Its fluid though and I don’t think about the climb “type” very much if at all since the climb out is always dynamic.

As a rough guideline though if you want to climb steep and slow it would be type 1 vs fast and shallow being type 3.

The second value is your prop rpm. So obviously this doesn’t have much application to IF. But so you know…

Takeoff - 1020rpm
Climb out - 900rpm
Cruise - 850rpm

It’s possible to program the FADEC to climb at 850rpm which is why that would be an option in simbrief. But this is pretty rare.

This may seem confusing so let me know if you would like me to clear anything up :)

4 Likes

As long as you are at 4-5 ish degrees on the climbout, you should accelerate and subsequently bleed off speed as you progress through the climb. Hope that helps

Regarding landing, how much power do you recommend just before touch down? In my IF experience, I need to idle the engines or I end up floating before enough speeds bleeds off.

1 Like

This is where the model in IF is different from the real thing. In real life we land at the same speed we approach at. And that often times requires you ADD power on the flare. What’s worked for me in IF is leave the power where it’s at and don’t really flare but do whatever works for you!

1 Like