01
BUILD THE FOUNDATIONMath you can
actually follow.
Start with the basics. See the exact steps through mentals, hose lengths, friction loss, and pump pressure—then work the next problem yourself.
Take your first guided rep LAFD ENGINEER WRITTEN EXAM PREPARATION
ACE THE
ENGINEER
EXAM.
You know what the next seat means.
Give your preparation a plan.
Turn the reading list into a daily routine—and the numbers into steps you can explain. Learn a small piece. Work the problem. Bring it back from memory.
$30 / weekBilled weekly. Manage or cancel in your account.
READ IT.HEAR IT.WORK IT.RECALL IT.
LOS ANGELESBUILT FOR THE NEXT SEATEST. 2026
MENTALS & HYDRAULICS✦DEPARTMENT MATERIAL✦RECALL UNDER PRESSURE✦ENGINEER EXAM PREP
YOUR FIRST WIN STARTS HERE · NO ACCOUNT NEEDEDONE SETUP.
ONE SETUP.
THREE SMALL WINS.
See the method. Work a different length. Choose your next step. This is guided practice with one source row, not an exam-readiness score.
- 01UnderstandOne source setup
- 02ApplyA different length
- 03Make a planYour first focus
0 of 3 steps complete. Start with the setup.
01 / UNDERSTAND THE SETUPBig problem.
Big problem.
Small pieces.
For this hose and flow, the sheet gives 50 psi of friction loss per 100 feet. A 50-foot section is half that length, so its loss is 25 psi.
Count the sections. Multiply by 25. Add the 75 psi nozzle pressure once.
YOUR MEMORY JOGGERHALF. COUNT. ADD ONCE.
Half the 100-foot loss. Count the 50-foot sections. Add nozzle pressure once.
1¾-inch Spray (MC)200 GPM75 psi nozzle
Source: October 2016 hydraulic sheet, row H05. Level layout; no added appliance loss. The 50-foot increments shown here are derived from the row’s values. Other hose, flow, nozzles, elevation or appliances can change the answer.
THE 50-FOOT METHODTRY IT LIVE
Choose a length. Follow each step.
- 01COUNT THE PIECES250 ÷ 50 = 5 sections
- 02FIND THE FRICTION LOSS5 × 25 = 125 psi
- 03ADD THE NOZZLE PRESSURE ONCE125 + 75 = 200 psi
PRESSURE FOR THIS PRACTICE SETUP200PSI
Same hose, flow, and nozzle. Only the length changes.
02 / APPLY IT TO A NEW LENGTH
Your turn: 150 feet.
Keep the same hose and 200 GPM flow. Friction loss is 25 psi per 50 feet; nozzle pressure is 75 psi. On this level layout with no additional appliance loss, what pump pressure does the setup need?
Choose an answer. Then check the reason.
03 / GIVE YOUR NEXT SESSION A JOBWhere do you want
Where do you want
to start?
Pick a focus. Your program brings the rest together when you’re ready.
01 / YOUR MATERIAL. ONE STUDY DESK.FROM “WHERE DO I START?”
FROM “WHERE DO I START?”
TO “GIVE ME THE QUESTION.”
Give every study session a job. Understand the material, work through the numbers, then bring it back without looking.
Math you can
02
MAKE THE FACTS STICKGive the details
a place to land.
Follow plain-language lessons, memorable explanations, and memory cues. Keep the transcript close when you need to slow down and work through a detail.
Meet your audio study partner03
PRACTICE THE RECALLKnow it before
you reveal it.
Answer first. Check the explanation. Track the misses and bring them back into your review. Turn a familiar-looking page into an answer you can produce.
Work a new hose length
THE ENGINEER STUDY SESSIONSInside the member course · audio + transcripts
LISTEN · PAUSE · RECALL11H 44M TOTAL
03 / LET THE LESSON COME WITH YOUPUT YOUR
PUT YOUR
STUDY TIME
ON REPEAT.
A full course you can hear—and come back to.
Listen to the explanation, pause at a recall prompt, and say the answer out loud. Jump back into the transcript when a number or procedure needs another look.
- 76 lessons with a written companion
- Lesson navigation inside the course player
- Memory cues to bring the idea back
YOUR PRACTICE SHOULD SHOW YOUR WORKONE DESK.
ONE DESK.
YOUR NEXT CLEAR STEP.
Pick a manageable session. Follow your daily missions. See the practice you’ve actually completed—and which concepts need another rep.
Choose your session.
Set a 30-, 60- or 90-minute plan, or go longer when your day allows.
Work a real setup.
Follow the source conditions. Earn a math milestone from a completed check.
Log the recall rep.
Answer before the reveal. Supported practice and independent checks stay separate.
Build your rhythm.
See your last seven days. Return to a missed idea and write the repair.
THE MATERIAL BEHIND THE REPSBUILT AROUND THE
BUILT AROUND THE
ENGINEER’S WORK.
01
Mentals & hydraulics
Calculations, hose increments, pressure components, and calculator practice.
02
Apparatus & equipment
Engine material for 2006 models onward, with source notes and model-specific details.
03
Department material
Lessons and references across manuals, training bulletins, logs, and department guidance.
04
Written companions
Study guide, math workbook, and a coverage and corrections guide to keep beside your practice.
Study with the source in view. The program includes coverage notes and unresolved items; the current official exam announcement determines what is testable.
BRING YOUR STUDY PARTNERBUILD THE HABIT.
BUILD THE HABIT.
SHARE THE WIN.
Give a new member $10 off their first week. After their first qualifying subscription payment succeeds, you earn $90 in subscription credit—enough for your next three $30 weekly renewals.
Get your personal link from your account. Your friend uses it when joining, and your account tracks the qualifying referral and credit.
Get my referral linkLA FIRE ACES · STUDY PARTNER PASS01 + 01
YOUR FRIEND’S FIRST WEEK$20
$10 off the regular $30.
Then $30 per week until canceled.
YOUR QUALIFYING REWARD3
Weekly renewals covered by
$90 in subscription credit.
New paying members only. No self-referrals or cash payouts. Credits apply to future subscription invoices. Refunded or disputed qualifying payments are reviewed. Referral terms.
ONE PROGRAM. YOUR NEXT CLEAR STEP.START THE
START THE
WORK TODAY.
A date on the calendar becomes useful when you know what to do next.
Build your routine around the Engineer material, guided calculations, lesson audio and practice you can track. Come back with a plan for the next rep.
1 Create your account2 Subscribe securely with Stripe3 Open your study desk
LA Fire Aces is offered by APOT Solutions, Inc.
ENGINEER STUDY MEMBERSHIP
$30USD / week
A recurring weekly subscription. Renews every 7 days until canceled. Any applicable tax is included.
- 76 lessons with full transcripts
- 11h 44m of full-course audio
- 1,298 recall and practice cards
- 217 worked practice exercises
- Guided mentals and hydraulic calculations
- Daily missions, practice rhythm and earned milestones
- Study guide, math workbook and coverage notes
Review the total in Stripe before subscribing. Manage billing or cancel future renewals from your account. Access continues through the paid period.
Read membership termsBEFORE YOU STARTGOOD QUESTIONS.
GOOD QUESTIONS.
STRAIGHT ANSWERS.
What if math has never been my thing?
Start at the beginning. The lessons and guided tutor break the calculation into small steps, explain the units, and show worked examples. The goal is to understand the path to the answer, then practice it without the prompts.
Can I read and listen to the same lesson?
Yes. The course has 76 lessons with full transcripts and a complete narrated audio course. Use the lesson player to jump to a section, then return to the written explanation when you need it.
Is January 12 the official exam date?
The countdown is set to January 12, 2027 as this program’s current study target. Confirm the final test date, eligibility, and reading list in the official exam announcement.
What happens when I create an account?
Create your account with a passkey and save your recovery key. New paid members then review and confirm the $30-per-week subscription in Stripe. Payment activates course access. Creating an account alone does not charge you.
How do I use a scholarship code?
Create your account and save your recovery key, then open “Have a scholarship code?” in your account. Confirm the $0 Stripe checkout. Access is activated after verification and expires exactly 30 days after Stripe checkout completion. No card is required and there is no automatic renewal. A weekly subscription afterward requires a separate choice. Each code can be redeemed once; scholarships do not combine with referral discounts or rewards. Scholarship terms.
How does weekly billing work?
The membership costs $30 USD per week and renews every 7 days until canceled. Stripe shows the checkout total before you subscribe. Manage your subscription or cancel future renewals from your account; access continues through your paid period. Any referral offer is shown with its own terms before checkout.
Do points or milestones predict my exam score?
No. The program marks practice you have actually recorded: recall attempts, checked calculations, corrections and return visits. Listening, guided practice and delayed independent recall remain separate. Use the source material, coverage notes and official reading list to judge what still needs study.
Does my study progress follow me between devices?
Progress is saved separately for your account in each browser. Export a progress backup from your study desk when you want to move devices or protect your work before clearing browser storage.
Is LA Fire Aces an official LAFD program?
LA Fire Aces is an independent study program. It is not affiliated with or endorsed by the Los Angeles Fire Department. Use the current department sources and official exam announcement alongside the course.
THE NEXT REP IS YOURS.PUT IN THE WORK.
GO AFTER THE SEAT.
Show up with a plan. Build the understanding.
Train yourself to bring it back.
Renews weekly until canceled. Your next rep can start today.
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