Our G.91 project has made significant progress on the core flight experience, with the main focus placed on building a custom external flight model that captures the character of a light, swept-wing tactical jet.
The aircraft now uses a surface-based aerodynamic model, where the wing, horizontal tail, vertical tail, fuselage, flaps, landing gear and speed brakes all contribute individually to forces and moments. Local airflow, angle of attack, sideslip, Mach effects, ground effect, post-stall behavior and control effectiveness are all being refined to give the aircraft a natural and convincing feel across the envelope. Particular attention has been given to stall behavior, wing drop, autorotation tendencies and recovery characteristics, with the goal of making the G.91 feel alive without relying on artificial scripted reactions.
Work has also progressed on the Orpheus turbojet simulation and supporting flight systems. The engine model now includes spool dynamics, idle behavior, ram effects, inlet distortion, compressor stall and flameout logic, jet pipe temperature behavior, overspeed protection and vibration feedback.
We have also implemented JATO support, cockpit shake, trim behavior, landing gear, flaps, airbrakes, wheel brakes and a basic stability augmentation system with separate pitch and yaw damping. Several cockpit instruments have been improved, including RPM, JPT, G-meter, trim, flap, airbrake, turn-and-slip and airspeed indications.
A first-pass reconnaissance camera implementation is also in progress, focused on rendering and saving mission-time-stamped images from the aircraft’s camera position.
With the flight model now established at a solid and highly enjoyable baseline, the next phase of development will focus on a deeper expansion of the aircraft's systems. Building upon the groundwork already laid, our current efforts are centered on further developing the electrical, hydraulic, radio, weapon, cockpit, and damage systems with cleaner logic, tighter integration, and even more authentic behavior.
Our goal is to bring these surrounding systems up to the same advanced standard as the flight dynamics, ensuring the G.91 operates as a fully cohesive and deeply credible DCS module in every phase of flight, communication, and pilot interaction.
The work completed so far has led to the inclusion of the following features:
Flight Model
Custom External Flight Model: Built around surface-based aerodynamic computation.
Zonal Aerodynamic Model: Features separate contributions from the wing, horizontal tail, vertical tail, fuselage, flaps, landing gear, and speed brakes.
Local Airflow Evaluation: Conducted for aerodynamic sections, including local angle of attack, sideslip, and rotational flow effects.
Post-Stall Behavior: Handled via dedicated alpha/beta aerodynamic tables.
Dynamic Stall and Flow Separation Logic: Implements delayed separation and reattachment behavior.
Stall Hysteresis: Models local loss of control effectiveness in separated flow.
Deep Stall Conditions: Captures natural wing-drop tendencies and autorotation behavior.
Swept-Wing Specific Behavior: Includes leading-edge normal-flow effects.
Aerodynamic Damping: Driven through explicit derivatives such as pitch, roll, and yaw damping terms.
Ground Effect Modelling: Accounts for lift and induced-drag variation near the runway.
Compressibility and Transonic Effects: Simulates Mach-dependent lift, drag, control effectiveness, and pitch trim changes.
Asymmetric Moment Effects: Models individual aerodynamic contributions from landing gear legs and speed brake panels.
Structural Degradation Prep: Features separate left/right flap and control-surface modelling, prepared for future damage integration.
Flight Control Trim Model: Affects the aircraft through stabilizer/control-system behavior rather than simple artificial offsets.
DCS: F-100D Super Sabre Released! by Grinnelli Designs
We are pleased to announce the release of the DCS: F-100D Super Sabre by Grinnelli Designs. See the trailer here! This first release from the Grinnelli team sets a high bar for DCS modules. The F-100D is an incredible and historic aircraft that challenges even the most skilled virtual pilots in the DCS skies!
This module offers a highly detailed recreation of the F-100D, developed using extensive photography, photogrammetry, and laser scanning of actual airframes. The aircraft features four 20 mm M39 cannons, AIM-9 Sidewinders, rockets, conventional bombs, napalm, cluster munitions, and the AGM-45 Shrike anti-radiation missile. A fully modelled Fire Control System, including ranging radar, gyroscopic gunsight, and early computer-assisted bombing, equips you for a wide range of missions.
Beyond its weaponry, the DCS: F-100D provides a comprehensive simulation of the aircraft’s electrical, hydraulic, navigation, engine, and warning systems. The AN/APR-25 Radar Homing and Warning Receiver is modelled with realistic radar signal simulation and realistic threat audio, improving the look and feel of your Cold War combat experience.
Additional features include configurable strike and gun cameras, multiple engine and afterburner configurations, realistic brake temperature modelling, dynamic damage, interactive training missions, and the unique Zero Length Launch system, which enables rapid deployment from a stationary position, a first in DCS! These items are designed to provide the most authentic F-100D experience possible.
Whether you are recreating Vietnam-era strike missions, targeting radar sites with Shrikes, or seeking to master one of the most challenging fighters of its era, the DCS: F-100D Super Sabre is a distinctive and authentic addition to the expanding lineup of Cold War aircraft in DCS.
Inspired by Jester, the legendary F-14 RIO from Heatblur, we’re currently experimenting with something a little more… Italian.
Meet M.A.R.I.O. — Multirole Assistant for Reconnaissance, Intercept and Operations — an interactive instructor/copilot concept for the DCS MB-339.
The goal is simple: give the 339 a lightweight “second seat” that can help with situational awareness, traffic and threat callouts, relative position reports, and eventually some basic in-flight guidance.
So far, we’ve been testing threat detection, position reporting, dynamic behavior tracking, and more natural warning callouts — including when something unpleasant decides to move onto your six. Future ideas include navigation support, aircraft checks, training assistance, and more advanced assist features.
As always: this is still WIP, experimental, and not confirmed for release yet.
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Following some recent and very positive interactions on Reddit’s Hoggit, a few users suggested that a binocular-style feature could be a nice addition to the DCS: MB-339, especially for Cold War scenarios and FAC-related roles.
We liked the idea, so we decided to run some early experiments — and the initial results have been quite promising.
Attached is a screenshot from our current tests. Of course, this is still at a very early stage: the lens effect is preliminary, and what is shown in the screenshot does not represent the final feature.
This is not a major feature, and it does not require an excessive amount of development resources, but we believe it can still add further value and versatility to the module, especially in those mission profiles where visual spotting plays an important role.
In parallel, bug fixing continues as usual. We have already closed the patch that will be distributed with the next DCS update, and we are confident that future releases will also bring additional key bindings and quality-of-life improvements.
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