SAAB J-35D Draken
This build is from 2021 that I forgot to finish.
It's finally out, but the reason it took 2.5 years to finish it doesn't mean I was constantly improving it, I just forgot.
Disclaimer: The Draken by nature is unstable, I do not recommend controlling this aircraft with a keyboard.
(The Draken in reality is even more unstable, mine is a bit too stable especially in terms of how it is pretty much immune to flat spins )
Different Versions (Bicolour Scheme / Low part versions)
Bicolour skin build 1352 parts
Bicolour skin build 1097 parts
WiP
I kinda gave up on this thing
There's a lot stuff that are missing
Flight Model
Please note that the Draken pulls a lot of AoA, and is very sensitive, especially at low speeds (around 600km/h and lower)
High speed maneuvers are at around 11~12Gs (The aircraft may exceed 12Gs for a split second in a high speed turn)
Do not exceed IAS 1420km/h as the control surfaces will lock up.
(Should've added wing rips but...lazy)
Cobra
As there are no such thing as a AoA limiter in this aircraft, to perform a cobra in this aircraft, decrease the throttle down to 30%~50% or lower, and simply adjust your IAS to around 350~400km/h, and pull as hard as you can.
Increase thrust after the maneuver as soon as possible Do not maintain the pitch for too long, as it will lead to unrecoverable stalls, sometimes a flat spin.
Flatspin recovery:
Apply maximum thrust
Apply Roll, Yaw to the direction of spin, Pitch down.
(Do not try to counter roll/yaw)
Engine
Replication of the Volvo RM6C in terms of thrust, fuel consumption etc
No fancy start up procedures, but IAS and altitude will affect thrust, fuel consumption
Thrust will gradually increase until it hits around IAS 1200km/h at deck.
Thrust, Fuel consumption will decrease by around 3% every 1000 meters, until around 15000+meters, it will not ignite.
Controls
AG1 - Low sensitivity controls
AG2 -
AG3-
AG4- Jettison RB-24Js
AG5- Ram Air Turbine (Does nothing but popping a mini fan behind the front gear)
AG6- AirBrakes
AG7- Drogue Chute
AG8- Open / Close Canopy
Ejection Seat
Activated by Eject in weapons tab
Cockpit sucks lol most stuff aren't functional (Radar, AoA indicator, Landing Gear warning light etc)
Versions
Bicolour skin build 1352 parts
Bicolour skin build 1097 parts
HEJ DÅ !
Specifications
Spotlights
- Dimkal 2 months ago
- Trainzo 2 months ago
- Sgtk 2 months ago
- MAHADI 2 months ago
- Cannabis 2 months ago
- Renameduser4 2 months ago
- RicardoACE 2 months ago
- Rafalemmm 2 months ago
- DISHWASHER2005 2 months ago
- Pan 2 months ago
- CR929thenewSPplayer 2 months ago
- VeroViper 2 months ago
- Erc90F4RU 2 months ago
- TheCommentaryGuy 2 months ago
- L1nus 2 months ago
- sKyCoS 2 months ago
- PUMPKINSIDD 2 months ago
- WinsWings 2 months ago
- HanakoSan 2 months ago
- HuskyDynamics01 2 months ago
- TheFlightGuySP 2 months ago
- MAPA 2 months ago
- AurouraPlanes 2 months ago
- RepublicOfCursedPlanes 2 months ago
- ToeTips 2 months ago
General Characteristics
- Successors 1 airplane(s)
- Created On Windows
- Wingspan 30.4ft (9.3m)
- Length 50.3ft (15.3m)
- Height 14.7ft (4.5m)
- Empty Weight 19,054lbs (8,642kg)
- Loaded Weight 22,599lbs (10,250kg)
Performance
- Power/Weight Ratio 477322.944
- Wing Loading 53.5lbs/ft2 (261.4kg/m2)
- Wing Area 422.1ft2 (39.2m2)
- Drag Points 240
Parts
- Number of Parts 1582
- Control Surfaces 1
- Performance Cost 5,524
@Zal777
About the instabilities:
.
Let me explain again. Similar complaints have been received before. Also, the SAAB J-35 Draken does not have flaps, just as most other double delta/delta wing aircrafts.
.
The J-35D Draken is unstable by its very nature.
.
The CoM of the Draken is shifted to the rear of the aircraft (not to exclude most of the body being a massive LERX), making it unstable, and prone to unrecoverable flat spins (Some Drakens were equipped with chutes to deploy at air when caught in a flat spin)
The cobra maneuver of the Draken wasn't on purpose, it was rather considered as a flaw. But with these intentional instabilities and 'flaws' the Draken came with excellent maneuverability.
.
The Draken in reality is even more unstable, much easier to stall and fall into a flatspin. Most modern fighters are intentionally built to be unstable (relaxed instability), but controlled by a flight computer to be stable in flight. The Draken does not have such technology. (At least the Draken's CoL is behind the CoM, the F-16 for example has the CoM behind the CoL).
.
To put it another way, Draken pilots had to 'trim' the aircraft to do the same maneuvers in which other aircraft required the whole flight stick to be involved.
.
TL;DR I would go as far to say that my Draken isn't unstable enough, and I wouldn't try controlling this with a keyboard.
.
Even aircrafts that are more stable than the Draken in real life does not control like you would imagine in real life.
.
It took some effort to make it purposefully unstable whilst flyable in SP.
I hope you understood.
@brians1209 Yes, if you want i can help you at any moment for building one
@Angelo135YouTube
Yeah, especially the cockpit. It's basically a WiP build.
Very cool plane but it's missing some parts...
@MTakach
It is crucial that you remove all collision responses in xml when building a landing gear (remove collision on both the landing gear parts and the landing gear bay), and parts like shock/rotator/pistons are recommended to have multiplied mass for strength.
If the problem persists, tweak the traction of the wheel by xml (foward/sideway traction etc), and this takes some trial and error.
Hello, I am building custom landing gear, but I am having issues with the struts clipping through eachother whilst on the ground, what have you done on the draken in order to prevent this?
@Zal777
Limiting the Gs of an aircraft is quite common in SimplePlanes, in order to achieve realistic performance.
.
You are a relatively new player, so I understand, but many people put great effort to limit the Gs of their aircraft with funky tree codes or other many methods.
.
But of course, it is a preference whether you want a realistic performance or not.
.
Some may enjoy having realistic flight models, some may prefer to not. Totally understandable, have a great day.
@brians1209 Really, if you take this "G's force" thing, the game becomes more boring than it already is.
I liked you,... because you're diplomatic. you will give your person a positive vote.
@brians1209 I understand, thank you for your humility.
@Zal777
Your plane that you sent me exceeds 20Gs of pull in a barrel roll.
I don't think that is realistic.
.
Also, it seems that you are here to judge my build and advertise your own stuff. Please don't.
@Zal777
.
Arcade styled flight simulators represent flight characteristics in a comfortable and simple way. I would say this is more of the 'correct' representation.
.
But sure, you might not like it.
.
But I hope you understood that this is a fully intentional feature that I put in with quite some effort.
@brians1209 My main focus on my aircraft, is firstly!! Maneuverability and Stability, so much so that I focus primarily on these characteristics, which is why their shape and design is for performance more than aesthetics.
@brians1209 In short, it's a terrible aircraft. It's just pretty, but horrible to ride, I get it.
@Zal777
It seems you have a misunderstanding of the unstable nature of the Draken.
.
Please read the pinned comment, and also, it does have trim.
Your plane is bad, it's unstable, it doesn't fly well... it doesn't have "TRIM" it doesn't even have flaps...
Good job 👍
@BagelPlane
The fuel consumption is based on the Volvo RM6C / RollsRoyce Avon 300 series, which burns about ~30Ls of fuel per minute.
It will decrease by ~3% together with the amount of thrust every 1000 meters.
And yes I was lazy about the landing gears lol (I didn't even add anything in the landing gear bay too, not to mention missing details in the cockpit), and as I mentioned, please consider it a WiP build.
As a double delta wing aircraft, landing should be done at very low speeds, and the overall landing experience is bollocks as it was in real life, actually, a bit more shittier since I was also lazy with balancing the landing gear shocks. Best solution would be to release the drogue shoot as soon as possible. Sorry about that, too much laziness.
Thanks for the detailed review!
Just spend a good while flying this thing and it is a blast!
>
Took off from Wright Airport and headed towards Maywar. I was a tad bit shaky at first, but once above 15,000 feet the Draken handled amazingly. Great flight model, I don't know if this was an intended feature, but I like how the camera shakes a bit in the cockpit, especially when then parts are moving on the aircraft. I feel it captures that early jet age feeling. Coming in for a landing at Yeager wasn't too difficult, but I think I came in too fast, leading to the jet bouncing up a few times before finally settling into a roll down the runway. The landing gear is nice!
>
Currently my only gripes are fuel consumption and the rear landing gear lights. For fuel, I may have just been running the jet at too high a power setting. With the landing gear lights, they look like they're just floating in front of the gear.
>
In terms of aesthetics this plane is beautiful. The mixing of silver on the fuselage to look like different panels, roundels, and numbers all look so clean and crisp. The cockpit is amazing, and I really like how the canopy can be opened and features an ejection seat.
>
TL:DR Great plane, deserves every upvote. Go fly!
Excellent work
@Baoligao
It is supposed to be that way, the CoM of the Draken is shifted to the rear of the aircraft (not to exclude most of the body being a massive LERX), making it unstable, and prone to unrecoverable flat spins (Some Drakens were equipped with chutes to deploy at air when caught in a flat spin)
The cobra maneuver of the Draken wasn't on purpose, it was rather considered as a flaw. But with these intentional instabilities and 'flaws' the Draken came with excellent maneuverability.
.
The Draken in reality is even more unstable, much easier to stall and fall into a flatspin. Most modern fighters are intentionally built to be unstable (relaxed instability), but controlled by a flight computer to be stable in flight. The Draken does not have such technology. (At least the Draken's CoL is behind the CoM, the F-16 for example has the CoM behind the CoL).
.
To put it another way, Draken pilots had to 'trim' the aircraft to do the same maneuvers in which other aircraft required the whole flight stick to be involved.
.
TL;DR I would go as far to say that my Draken isn't unstable enough, and I wouldn't try controlling this with a keyboard.
The appearance is excellent, but the handling is really terrible
@brians1209 yes I love cobraing when I’m bored
@SourDoughBread
Thanks, I've actually thought of abandoning this build many times. Glad I finished it to hear you enjoy it.
THE DORITO PLANE BACK AT IT AGAIN DOMINATING THE SITE!!!
my brain: blown
my eyes: amazed
my whole body: I M M E R S E D