Throttle Handle & Quadrant ( HOT )

Throttle Handle & Quadrant ( HOT )

( HOT = Hands-On-Throttle ) 1, 2 or 3 lever(s); 7 to 13 switches / 19 functions.  Now, with our HOS ( our Stick Grip ), you have a true HOTAS and can clear off your panel of switches ( almost ) with Safety of Flight items finally at your finger tips ; left and / or right hand models, or center cockpit models, with individual lever friction adjustment for single seat, tandem or side-by-side aircraft ( co-pilot has same switch functions ); mounts in left, right or center console(s), or on the panel; 1 or 2 levers can be removed if not needed, such as for those not having a Constant Speed Prop, or those who have a Computer Controlled Fuel Injection System ( click here for CAD ISO views and for CAD dimensions of our HOT ).  Features besides the switches in the handle ( now you don’t need an Audio Panel, saving you ~$1500 to $2500+ ) — when you advance the Throttle Handle, it drags the Mixture and Prop levers forward for you ( of course you can push them up yourself ), preventing fuel starvation ( and stall/spin ) if you forget the mixture, and preventing engine and / or prop over-speed ( saving you $10,000 to $20,000+ from an engine and / or prop overhaul ) if you forget the prop lever, because of a go-around — kinda like having a Poor Man’s FADEC ( saving you ~$7500 to $10,000+ ), but you can still pull the Mixture aft for leaning and engine UN-flooding, and pull the Prop Lever aft to exercise the prop and set cruise RPM at altitude; you can set the Mixture Lever with the Mixture Set Thumb Screw for higher altitude takeoff’s; Mixture Lever has a Cutoff Safety Feature to keep the pilot from inadvertently shutting the engine off; if you don’t have a constant speed Prop for some reason, you can remove the Prop Lever, or better yet, use it as a Manual Pitch Trim Lever or Carb Heat Lever or Cowl Flaps Lever or Alternate Air Lever; each lever has it’s own Friction Adjustment with a clicking / ratcheting effect like a vernier does ( set each levers friction, and you never need to mess with Lever Friction again ! ), but one lever does NOT move the other lever as in other certified quadrants; built-in adjustable Knee Board and chart LED Map Lights molded into the corners of the handle; “Throttle Near Idle Switch” that will warn you, or even lower, your landing gear if your landing gear is not DN ( this switch is in series with a pressure switch Tee’d into the Pitot Static System set at 1.3 times stall speed ); “Throttle Above ~2100 RPM Switch” that will warn you if the Canopy is not latched, turn your Transponder ON, turn ON your Airframe Flight Time Clock [ this feature is in series with a pressure switch Tee’d into the Pitot Static System set at Gross Weight ( GW ) stall speed], turn your Strobes ON ( this feature is in series with a pressure switch Tee’d into the Pitot Static System set at stall speed ), turn ON your Landing / Taxi Light [ day or night ] to help with runway incursion(s) [ the FAA is hot on this lately ], automatically retract your Speed Brakes &/or Flaps [ Flaps retract at GW stall speed ], allow the landing gear to come UP ( this switch is in series with a pressure switch Tee’d into the Pitot Static System set at 1.3 times stall speed ); and / or control whatever else you want. UPDATE:  the prototypes ( click here for pics of the Left Prototype, and click here for cockpit pics of the front HOT being installed ) were a big hit at Sun ‘N Fun and Oshkosh !  Pricing looks to be between $1200 and $1400 all wired up — you will spend at least that much ( probably MORE ! ) doing everything separately yourself, and you will NOT have all the HOT features we offer ( you will save weight AND panel space, too, besides costs ); AND, our HOT could save you over $32,500 [ now you can afford to buy that EFIS you always wanted 🙂 ].  We will also have a version for Turbine Aircraft so the prop will go to Beta.  And if there is enough interest, we will make a HOT for twin engine aircraft, too.  We hope to have the single engine piston and rotary units ready SOON ( only $50K more to raise for the production tooling ) !  NOTE — we are now taking $100 deposit orders and will notify you when they are ready.


Throttle Handle and Quadrant ( HOT ) updated  03 / 05 / 2022  by JD


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The First True HOTAS System for Sport Aircraft:  the Infinity 1 Right and Left Hand Stick Grips, along with the Left or Right Hand, or Center Console mounted for side-by-side aircraft, Throttle Handle and 3 Lever Quadrant, has all the important major switch functions you need right in your hands, similar to military aircraft.

Stick Grips and Throttle Handles with switches built into them greatly reduce pilot workload, increases pilot efficiency, de-clutters the instrument panel and makes flying the aircraft safer, among other things.

The term “HOTAS” is used in the military world and stands for Hands-On-Throttle and Stick.  “HOT” is Hands-On-Throttle.  “HOS” is Hands-On-Stick.

The Infinity 1 Military Throttle Handle and Quadrant, too, was designed with safety, comfort, functionality and durability in mind.  The ergonomic handle is tear drop shaped with finger knurls, fits the entire palm of the hand, and is canted 15 degrees counter-clockwise for left hand operation and wrist comfort.  The right throttle handle is just like the left, but cants 15 degrees clockwise ( of course ).  The center console mounted throttle handle is horizontal between the pilot and co-pilot, with the three 4-way switches installed on BOTH sides of the throttle handle and are wired in parallel so either the pilot or co-pilot has the same controls.

The non-glare black finish is also abrasion and impact resistant for long life, yet is easily maintainable and repairable.  The HOT has 10 to 13 switches / 19 functions on a 1 to 3 lever quadrant.

Throttle quadrant lever possibilities:  three levers for throttle, mixture and constant speed prop; OR — two levers for throttle and mixture if the prop is either a computerized constant-speed prop or a fixed pitch prop; OR — one lever for throttle only if the aircraft is jet powered, or the engine has duel electronic ignition and the prop is either a computerized constant-speed prop or a fixed pitch prop.

The old technology of a single throttle / quadrant friction knob ( or lever ) smashing all levers, has been replaced by a modern system whereby each lever has an adjustable ratcheting action that keeps the levers from creeping, yet levers still move easily.

The thumb will operate three, 4-way UP-and-DN / fore-and-aft momentary in all direction switches on the side of the throttle handle, which can power anything that needs a N.O. momentary switch.

EXAMPLES:  the middle 4-way momentary switch controls VHF COM 1 & 2 ( UP / DN ) Push-to-Talk ( PTT ).  The fore / aft movement could be used for CB or telephone PTT, or transponder IDENT, or stepping frequencies, or frequency flip-flop ( now you don’t need to buy that ~$2500 Audio Panel — we don’t use Audio Panels in the Navy ); the 4-way momentary switch located aft of the center PTT can operate flaps or flaperons ( UP / DN ), and the speed brake ( fore / aft ) ( or electric cowl flaps, or switch between radios, or switch between navigation radios, or electric prop ); and the 4-way momentary switch forward of the center PTT controls the moving map cursor / mouse for the new EFIS Systems and GPS’s.

The momentary push-button switch on the front side under the index finger is the ‘pick’ push-button for the moving map cursor / mouse.  The middle finger operates the N.O. momentary Engine Start, and the ring finger operates an ON/OFF Auxiliary Fuel Pump push-button — now, the pilot doesn’t have to stop flying the aircraft in an emergency to look down into the cockpit to find the Engine Start *or* the Auxiliary Fuel Pump Switch.

Handles can be customized — for those who want to fly with the Stick Grip in the left hand and use the throttle in the right hand ( ~18% of the world is left handed ), the company will swap the controls for Infinity 1 customers.  We are the manufacturers of the only left handed Stick Grips AND right handed throttle handles for Sport Aircraft in the world!

We also have 2 row handle models of the 4-way switches, or no switches ( blanks ) on either side of the handle.  But the bottom push-buttons will still be there.

Our Info

INFINITY Aerospace
During the apocalypse, call or e-mail us for our physical address.
PHONE: 619-448-5103
FAX: 619-448-5176
SKYPE: kingvulcan007

Operating Hours:
Monday – Saturday
1330 – 2300+ Pacific Time — I’m a night owl
You can park your plane(s) in front of our   hangars &/or office here on Gillespie Field (SEE).

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