Haggan Aviation - Authorized Raisbeck Dealer

What Raisbeck Means for You

Raisbeck modifications are the most cost-effective upgrade available for King Air operators. Every STC is backed by real-world data, installs cleanly, and pays dividends on every flight.

8%
More Engine Power at Altitude
18°C
ITT Reduction — Extends Engine Life
⅓
Cabin Noise Reduction (Up To)
600 lbs
Added External Storage
The Case for Raisbeck

Why Upgrade Your
King Air?

Your King Air is one of the most capable turboprops ever built — but stock configuration leaves real performance on the table. Raisbeck Engineering has spent 50 years proving that targeted, FAA-certified modifications transform the King Air into a faster, more efficient, and more valuable aircraft.

"Every modification pays dividends on every single flight — and keeps paying when it's time to sell."

From the ramp to cruise altitude, Raisbeck mods are felt and heard. Passengers notice the quiet. Pilots notice the performance. Buyers notice the value.

01
More Power. Every Departure.

Ram Air Recovery and swept-blade props add measurable speed and climb at the same or lower fuel burn. Pilots feel it on every takeoff roll — and log it in the fuel savings.

02
A Dramatically Quieter Cabin

Swept Blade Turbofan Propellers cut in-flight cabin noise by up to one-third. Passengers experience it on the first leg — one of the most immediate upgrades available for any King Air.

03
Protect & Grow Your Investment

Raisbeck-equipped King Airs command a clear premium on the resale market. Buyers seek these mods — and pay for them. Your upgrade cost is partially recovered at resale before you've even counted the fuel savings.

04
Carry More, Every Flight

Wing Lockers and the Extended Nose Locker add significant usable baggage volume, improving payload flexibility without compromising aerodynamics.

05
Fly with Confidence

Every Raisbeck modification carries individual FAA STC approval — rigorously tested and fully documented. No grey-market shortcuts. No surprises at annual inspection.

 
 
Raisbeck Performance Systems

Available Modifications

Each modification is individually FAA STC-approved and can be installed standalone or combined into a complete EPIC Performance Package. We'll recommend the right combination for your aircraft and mission.

01 — Ram Air Recovery
Ram Air Recovery System
Redirects and seals engine intake airflow — recovering the power your engines were already losing to inefficient plenum design.
  • 8% increase in available HP at altitude
  • Measurable fuel flow reduction at equal torque
  • 18°C ITT reduction — extends engine life
  • Ice vanes deployable ground through cruise
  • Developed with Pratt & Whitney Canada
King Air 200 Series
02 — Propellers
Swept Blade Turbofan Props
4-blade aluminum or 5-blade carbon composite design. The single most noticeable improvement available for any King Air.
  • Up to one-third cabin noise reduction
  • Improved single-engine climb performance
  • Carbon composite saves 48–54 lbs vs. OEM
  • Unlimited blade life (composite option)
  • 90, 200, and 300/350 series compatible
King Air 90 · 200 · 300/350 Series
03 — Storage
Crown Wing Lockers
Two aerodynamically-faired external bays on top of the wing — up to 600 lbs of payload that didn't exist before.
  • 300 lbs per locker, 600 lbs combined
  • Fits skis, golf bags, oversize luggage
  • Aerodynamically area-ruled composite
  • Paint-matched to your livery
  • FAA STC — 90, 200, and 300 series
King Air 90 · 200 · 300 Series
04 — Storage
Extended Nose Locker
Replaces the standard nose baggage structure to significantly expand forward baggage volume with a factory-quality finish.
  • Significantly expanded forward baggage
  • Lightweight composite construction
  • Positive-locking, robust latch system
  • Smooth aerodynamic profile
  • Paint-matched, fully removable for maintenance
King Air 200 Series
05 — Aerodynamics
Dual Aft Body Strakes
Aerodynamic strakes at the aft fuselage capture airflow to reduce vibration, cabin noise, and drag while improving stability.
  • Reduces aft-fuselage buffet and vibration
  • Increases equivalent vertical tail area
  • Reduces overall aerodynamic drag
  • Lightweight composite — minimal maintenance
  • Standard in the EPIC Performance Package
King Air 200 · 300 Series
06 — Aerodynamics
Enhanced Leading Edges
All-composite inboard leading edges with recessed de-icing boots and optimized intercooler inlets for all-conditions performance.
  • Improved lift, reduced approach speeds
  • Optimized intercooler airflow
  • Nickel-cobalt FOD-resistant edge
  • Recessed boots eliminate drag penalty
  • Enhanced icing-condition capability
King Air 200 · 300 Series
Common Questions

FAQ

Everything you need to know about Raisbeck modifications and installation at Haggan Aviation.

Request a Quote Call 303.792.0688
Yes — every Raisbeck modification carries individual FAA Supplemental Type Certificate (STC) approval. Each mod has been rigorously tested and certified to meet all FAA airworthiness standards. Your aircraft's airworthiness certificate remains fully intact, and the modifications are fully legal and insurable.
Installation time varies by modification. A single mod like the Ram Air Recovery System typically takes 3–5 business days. A full EPIC Performance Package runs 7–14 days depending on configuration and parts availability. We provide a detailed timeline estimate with every quote, and minimizing your ground time is always a priority.
Consistently, yes. Raisbeck-equipped King Airs command a clear premium in the pre-owned market. Buyers actively seek aircraft with these modifications because they represent known, certified performance improvements. The mods typically recover a significant portion of their installation cost at resale — on top of the performance and fuel savings during ownership.
Each modification is individually STC-certified and can be installed on its own — no bundle required. Many operators start with one or two high-impact mods (swept blade props and ram air recovery are the most popular), then add others over time. We'll help you prioritize based on your mission and budget.
As an authorized Raisbeck dealer, we maintain inventory of the most common modification components and have direct access to Raisbeck's supply chain for specialty items. This means faster scheduling with less wait time. Contact us for current availability on your specific modification.
Raisbeck offers modifications for the entire Beechcraft King Air family — 90 series (C90, C90GT, C90GTX, E90), 100 series (100, A100, B100), 200 series (200, B200, B200GT), the 250, and 300/350 series (300, B300, 350, 350i, 350ER). Specific mod compatibility varies by model; we'll confirm what applies to your exact aircraft at no charge.
That's exactly the conversation we have before quoting. Our technicians review your aircraft configuration, typical mission profile (routes, altitudes, payload, frequency), and ownership goals — then recommend the combination that delivers the best return. Submit a quote request or call us to get started.
Raisbeck modifications are designed to integrate cleanly into your existing maintenance program. Most add minimal additional inspection items, and some — like composite props with their extended TBO — can actually reduce long-term maintenance costs. Full documentation is provided with every STC installation, and our team walks you through any changes at aircraft pickup.

Ready for King Air Raisbeck Modifications:

📞 Call us at (303) 792-0688 or

Raisbeck Inquiry