Online ground school · CE-525 · Cessna 525 · Pro Line 21

Citation CJ1 ground school, the modern way.

An online ground school for the Cessna 525 Citation CJ1, serials 525-0360 to -0599, with Collins Pro Line 21 and Williams FJ44-1A engines. Operate the airplane's systems with real cockpit switches, drill memory items to zero defects and keep it all fresh with spaced repetition, in short sessions on your phone or computer.

  • Cessna 525 · Pro Line 21
  • Serials 525-0360 to -0599
  • Free preview
Ground School · typerating.aero

How the CJ1 course teaches

Built for the CJ1 with Collins Pro Line 21 and its annunciator panel, not the CJ1+, so the schematics, switches and annunciator lights match the airplane you will fly.

  • Systems you operateAnimated schematics with real-looking cockpit switches. Turn on a battery, fail a generator or pull a breaker and watch the system respond, then predict what happens next.
  • Teach, then testEvery question comes right after the page that teaches it. Understanding first; the numbers get their own lesson at the end of each system.
  • Memory items to zero defectsStudy, sequence, then recall each memory item against the clock. One wrong step and the run starts over.
  • Spaced repetitionSmart review brings back each question just as you are about to forget it, so the first week's systems are still fresh at the end.
  • Annunciator and engine-start drillsAn annunciator lights up: read it, classify it and pick the first action. Run engine starts on live gauges and catch the hot, hung or no-light start in time.
  • Single-pilot SRM scenariosDecisions with consequences and a debrief, written for flying the jet alone.
  • Mock oral and written checkExaminer-style questions you answer out loud, a limitations blitz against the clock and a mixed written check scored at the end.
  • Help that knows the courseAsk the built-in AI assistant. It answers only from the course text, citing AFM references, and hands billing and account questions to a person.
Inside the app

Real switches. Live systems.

Screens from the Citation CJ1 course: the engine start trainer, the electrical system with its cockpit switch panel, and your path through the course. Ground School runs in the browser on phones, tablets and computers.

Ground School on a phone: the Citation CJ1 engine start trainer for the FJ44-1A, with start buttons, throttle and the MFD engine display Ground School on a phone: the interactive Citation CJ1 electrical schematic above its DC power switch panel Ground School on a phone: the Citation CJ1 course path, with the next lesson and checkride readiness
Screens from the Ground School app

Create a free account to open five preview lessons and two memory items before you buy.

Cessna 525 · Collins Pro Line 21 · Williams FJ44-1A engines

What you'll study

  • PreflightThe airplane, the annunciator panel and how the checklist thinks.
  • Power and propulsionElectrical, fuel, engines and fire protection.
  • Air, ice and pressureBleed air, ice and rain, air conditioning, pressurization and oxygen.
  • Moving parts and avionicsHydraulics, gear and brakes, flight controls, the Pro Line 21 displays and autoflight.
  • Limitations, performance, memory itemsThe numbers, takeoff and landing data, weight and balance, and the memory items.
  • Single-pilot resource managementJudgment, workload and decision-making when you are the whole crew.

Practice drills: smart review, memory items, a limitations blitz, annunciator challenges, an engine start trainer, SRM scenarios, a mock oral and a mock written check.

Not your old-school CBT

Do it, recall it, decide

A traditional CBT is narrated slides and static diagrams with a quiz at the end. The CJ1 course has you operate the systems, answer each question right after the page that teaches it and review on a spaced-repetition schedule. CBTs vary, and many training providers' courses are good. Use Ground School alongside your training provider's material and the AFM, not instead of them.

Modern ground school vs. traditional CBT, side by side →

Study plan

How to prepare for a Citation CJ1 type rating

  1. Book your training

    A simulator course at a training center or training in the aircraft. Check your insurer's requirements. Either way you will be tested on systems, limitations, procedures and judgment.

  2. Learn the systems early

    Start a few weeks out. Work through one CJ1 system at a time with the schematics until you can predict what a switch or a failure does.

  3. Drill the must-knows

    Memory items to zero defects, limitations, annunciators and engine starts, in short daily sessions. Spaced repetition keeps them fresh.

  4. Rehearse decisions and the oral

    Fly the single-pilot SRM scenarios and run the mock oral until you can explain the airplane out loud. Then go fly.

Prices · single payments, nothing renews

Try it, then choose a plan

Free preview

Try it first

Create a free account to open five preview lessons and two memory items, the interactive systems schematics and some of the drills before you buy.

Open Ground School →
12 months · one aircraft

$399

The full Citation CJ1 course for 12 months. One payment; nothing renews.

Get the CJ1 course →
Lifetime · best value

$499

Every CE-525 course on sale when you buy: today the Citation CJ3+, the Citation M2, the CitationJet and the Citation CJ1. For as long as we offer them, and at least 36 months. One payment.

Get Lifetime →

The courses are study material for training purposes only. They don't replace your flight training, differences training or any other training the FAA requires. 48-hour refund if you have completed less than 10% of the paid lessons.

Questions

Citation CJ1 ground school FAQ

How do I prepare for a CJ1 type rating?

Book your training first, either a simulator course at a training center or training in the aircraft, and confirm your insurer's requirements. Then, in the weeks before, learn the CJ1's systems until you can predict what a switch or a failure does, drill the memory items and limitations until recall is instant and error-free, learn the annunciators and performance, and rehearse single-pilot decisions and the oral out loud. Our online Citation CJ1 ground school covers all of this, with a free preview.

Does the course cover the CJ1+?

No. It is built for the CJ1, serials 525-0360 to -0599, with Collins Pro Line 21 and Williams FJ44-1A engines. The CJ1+ (serials 525-0600 and on), with FADEC-controlled FJ44-1AP engines, is not covered. The original CitationJet (serials 525-0001 to -0359) has its own course.

What does the CJ1 course cover?

Every system (electrical, fuel, powerplant, fire protection, bleed air, ice and rain, pressurization, oxygen, hydraulics, landing gear and brakes, flight controls, and Collins Pro Line 21 with autoflight), then limitations, performance, memory items and single-pilot resource management. Practice drills include smart review, memory items, a limitations blitz, annunciator challenges, an engine start trainer, SRM scenarios, a mock oral and a mock written check.

How much is the Citation CJ1 ground school?

$399 for 12 months of the Citation CJ1 course, or $499 for Lifetime access. Each is a single payment and nothing renews. Lifetime includes every CE-525 course on sale when you buy, which today means the Citation CJ3+, the Citation M2, the CitationJet and the Citation CJ1. Lifetime means for as long as we offer the course, and at least 36 months from purchase.

Can I try the CJ1 course for free?

Yes. Create a free account to open five preview lessons and two memory items per course, the interactive systems schematics and some of the practice drills. If you buy and change your mind, you get a full refund if you ask within 48 hours of purchase and have completed less than 10% of the paid lessons.

How is it different from a CJ1 CBT?

A traditional CBT is mostly narrated slides and static diagrams, with a quiz at the end of each module. Here you operate the CJ1's systems with cockpit switches, answer each question right after the page that teaches it, drill memory items to zero defects and review on a spaced-repetition schedule, on your phone or computer.

Can I use it to review before CJ1 recurrent training?

Yes, it works well for review. It does not replace the recurrent training your insurer or operator requires.

Does the CJ1 ground school replace my type rating training?

No. The courses are study material for training purposes only. They don't replace your flight training, differences training or any other training the FAA requires.

Do I have to train with DAJETS to use the CJ1 course?

No. The course works with any training provider, simulator-based or in the aircraft. If you would like to train in the aircraft with us, see CJ1 type rating training at typerating.aero/cj-type-rating/.

Does it work on my phone?

Yes. Ground School runs in the browser on iPhone, Android, tablets and computers, and you can add it to your home screen like an app. Sign in and your progress follows you from device to device.

Get started

Open Ground School

Create a free account and start with the preview lessons and the systems schematics, on your phone or computer. Want to train in the aircraft too? Plan your CJ1 type rating with us.

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