Yep I did notice it and it’s a nice touch !!!
Also love the split fuel gauge from 1.0 =)
Hey Guys, before anything, Thanks!!superb mod , this plane now is a delight to fly, vanilla one is really under-powered.
I did the last two legs of my solo world tour using this mod (im using only single engine,piston aircraft, mainly the C152, but they destroyed the C152 on the last patch, almost impossible to use it in IFR conditions).
Last night (Real time, real weather) leg, i realized that the VL-3 is using a lot more fuel that should use irl?
Departed from MUMN (Mantua,Cuba) to MZBZ (Belize,Belize), using VOR-VOR nav, FL8 (cloud covered @ FL4 , & FL10, no anti icing so… FL8) flied 407nm, using 5000 rpm 3/4 of the trip length, and 4800 rpm the remaining 1/4, because i didnt know if i can reach the destination using that power, landed with both tanks on red, after 407nm (15/25kn tailwind all the trip), and in theory the VL-3 has 2000km range (1080 Nm), landed with maybe 1/5 fuel remaining , flying under half the max range?
FL8 its not ideal for long range, but i think i can’t even reach 500nm range before running out of fuel.
I believe there is a fuel burn bug for all acft but we’ll check
thanks!, i willl check the CubCrafters XCub perfomance mod (BushFlyingLegends) i think they fixed the unreal fuel burn bug for the xcub, will try to find how they did that comparing it with ther vanilla one
Comparing both folders, (Xcub mod & vanilla) i found in file engines.cfg :
Vanilla-> fuel_flow_scalar = 1
Mod-> fuel_flow_scalar = 0.65
Could be that?
Using the same formula, fuel_flow_scalar should be = 0.507
BestPowerSpecificFuelConsumption = 0.42 ; SFC at Best Power mixture ratio
Reducing that value also reduces fuel consumption
Thanks for all this great feedback guys! We are now reviewing both the fuel flow as well as the gear drag.
Keep it coming…we are listening. We are also massively increasing the max g forces this plane can handle. JMB specs state +15 / -9. More than a human can take.
The fuel flow we will carefully calculate, as we know this plane has a range of 2000km / 1080NM at optimal conditions. We love hard facts!
github model is way better than default on fuel flow, yet it is still off.
According to R915 manual @65% power manifold pressure should be around 29 in-hq and fuel flow should be 4.7gph (~6 gph in github model) and based on info from JBL it should cruise at 146kTAS.
@55% power - manifold 28, fuel flow 3.7gph, 125kTAS (18-19 manifold and 3-4gph in github model)
RPM should drop to 4800 (65% power) and 4300 (55%) but I doubt RPM could be modeled properly. Yet I think fuel flow could.
Thanks for this @MOCKBA80, good numbers to work with. Appreciate it.
I posted a link to Rotax manuals on github issues. R915 manual doesn’t have performance graph, but R914 and R912 do. R914 performance graph is a better proxy - R915 is just a hair more gas hungry but way better performance.
Wow thanks again @MOCKBA80…we’re on it! 
Also you could have multiple variants of VL-3 like so
if you rename aircraft like so and modify aircraft.cfg to reference Asobo’s like so
title = “VL3 Rotax-914” ; Variation name
model = “....\Asobo_VL3\model” ; model folder
panel = “....\Asobo_VL3\panel” ; panel folder
sound = “....\Asobo_VL3\sound” ; sound folder
texture = “....\Asobo_VL3\texture” ; texture folder
ui_manufacturer = “JMB Aircraft” ; e.g. Boeing, Cessna
ui_type = “VL-3 Rotax 914” ; e.g. 747-400, 172
Don’t forget to drop cameras.cfg.
proper path to model, panel, etc is “(slash-minus one dot)…(slash minus one dot)…\Asobo_VL3\model”
Asobo did a less than mediocre simulation on some (most?) planes so far, things out of specs, …missing instruments, etc etc etc.
But thanks to the community, lots of things are getting fixed, and made more close to the real deal.
Keep up the excellent work!
I got an answer from a VL3 owner, he says the gear drag is supposed to be huge. Plane goes from a 17 glide ratio to 9 or 10. So I guess this is pretty accurate!
That’s very good feedback! Thank you…the glide ratios really help. Will tune our bird to achieve this as per the real-world plane with the recommended speed for glide (75kts). We simply strive to make our model as accurate as possible.
If anyone out there has the glide ratio for a full-flap deployment config, that would be awesome, then we can further tune the flap drag as well. Let me know the total weight of the plane as well if you have it when the glide ratio was obtained.
The gear at 150 km/h will bring you down to flap speed 120km/h and wen you drop those barn door split flaps they create a lot of drag and rather act as brakes instead of adding lift. At 100km/h you can drop like a stone on a 7-8 degree glide. Compare a standard 3-4 degree approach.
Keep in mind you talk about an ultralight here, not much inertia, not much runway required.
On takeoff in the vl3 you‘re in the air at 80km/h with flaps 1 and then once you hit 100km/h you raise the flaps and immediately after that the gear, this sequence.
The aircraft is incredibly fast once it‘s clean. But if you spoil the airstream it brakes down even more. I wish I had the money for it 
A VL3 pilot told me to call JMB in Belgium and ask them for informations. Maybe since this is getting a bit serious that could be a nice idea. At worst they can just say « unable to help you, sorry » and at best they could give all informations available.