Weight, balance and seating

CASA’s Part 133 material for rotorcraft air transport includes performance and weight-and-balance requirements. You do not need the manual. You need to understand that the number you write on the form is used for a real calculation.

What “balance” means in a cabin

Helicopters have a centre of gravity range. Too much mass in the wrong place and the aircraft will not handle as certified. That is why a heavy passenger might be asked to sit in a particular seat, and why a child might not be placed to “even out” a fantasy of fairness.

Fuel is weight too. A longer scenic sector or a remote extra landing changes the fuel plan, which changes how much passenger mass is available. This is one reason two “same” helicopters on two routes are not the same product.

Scales and honesty

Some operators weigh everyone. Some trust the form and still spot-check. If you understate, you can put the pilot in a position the manual does not allow. That is not a customer-service nitpick.

If you do not wish to announce a number in a queue, ask whether you can provide it privately at booking. Most companies would rather solve dignity than discover a surprise on the pad.

Extra seats and private cabins

When an operator publishes a per-person threshold, it is their procedure for their aircraft, not a CASA tourist tariff. Above that line they may sell you two seats, suggest a different type, or decline. All three are legitimate. Argue the brochure, not physics.

Buying the cabin privately is sometimes the only comfortable way for a mixed-weight family to fly together. It costs more because you are buying unused seats. See how costs work.

Groups

A four-seat helicopter is not a four-tourist helicopter if one seat is the pilot. Count passenger seats, not “this machine looks roomy in the photo.” The planner on the how tours work hub is arithmetic with numbers you enter. It does not know a company’s real limit.

Families with teens, camera rigs and Grandma will often need two lifts. That is a scheduling fact. Book it as two lifts, not as a hope.

Bags, cameras, duty-free wine

Mass on your lap is still mass. A litre of water, a drone, a bag of apples from the farm stall — mention them if you were asked for “just body weight” and then acquired a pantry. Some cabins have no place for a suitcase. Harbour loops are not transfers to a cruise ship.

What we will not do

We will not invent a maximum passenger weight and put it in a table as if every R44, Squirrel and B-series in Australia used one number. We will not shame bodies. We will not tell you to lie.

Key points

Tell the truth. Sit where you are put. Plan extra lifts for groups. Treat published per-person figures as that company’s rule for that aircraft, to be confirmed, not as internet folklore.

Why the smallest person is not automatically at the window

Windows are not a hierarchy of cuteness. If the aircraft needs mass on the left, mass sits on the left. If a child restraint only fits one station, that station is used. Asking “but they will get a better photo” is asking the pilot to argue with the flight manual.

Fuel, temperature, and the invisible passengers

Hot days and high density altitude reduce performance. Extra fuel for a longer track reduces passenger mass available. A camera bag is a passenger if it sits on a seat. These are ordinary operational facts, which is why two lifts on a warm afternoon are not the operator “being difficult.”

How to talk about it with a group

Collect weights in private. Send them in one email. Do not crowd-source kilograms at dinner. If someone refuses, they do not fly, or the whole booking waits. That is cleaner than a pad argument.

Extra-seat policies are local

A number you saw on a forum for a Gold Coast R44 is not a number for a turbine machine in the Kimberley. Ask the company you are paying. Get it in writing if the number will decide whether Grandma comes.

What the group planner is

A browser toy. It divides passengers by seats you typed and flags people above a limit you typed. It does not know the helicopter. It does not send data to us. Privacy policy says so. Arithmetic is not an AOC.

Dignity

Staff should not announce your mass to the queue as entertainment. Passengers should not photograph the scale. Everyone can do better than playground rules.

Linking

This page is the physics. What to expect is the sequence. Costs is why private cabins cost more when empty seats are the solution.

Key points

Truthful mass, assigned seats, extra lifts without shame, company-specific caps. Part 133 talks about weight and balance because it keeps people inside the envelope. You can help by not lying.

Children, camera rigs, and duty-free

A child is mass and a restraint problem. A gimbal is mass and a projectile. A bottle of wine is mass and a spill. Say them all at booking. The load sheet cannot smell a souvenir.

Misconceptions

The internet’s kilogram number is not your aircraft. Privacy is not a reason to lie. Two lifts are not a punishment.

Worked group examples without fake limits

Three adults and a child, one likely passenger seat count of three besides the pilot: you are already in two-lift territory or a larger type. Two adults who want every window: private cabin, still seated as briefed. Six friends on a bucks weekend: do not surprise the desk at 08:00 with six undeclared masses and a speaker.

The planner widget on the hub exists so you can see the arithmetic. It will not apologise to the best man. It will not email the AOC holder. It will not store the kilograms. Use it, then use the telephone.

If a company asks for height as well as mass, that is often about seating and belts, not fashion. Answer.

Dignity, groups, and the widget

Collect masses privately. Send one email. Use the on-page planner as arithmetic with numbers you typed — it does not know the helicopter and it does not store kilograms on our servers. Two lifts are not a punishment. Extra seats are a local company rule, not a forum souvenir. Sit where you are put. The window is not a hierarchy of cuteness. Part 133 cares about envelopes. You can help by not lying.

Field notes for people who book once

Treat this page as a briefing you can reread the night before money moves. Official sources still win if they disagree with a sentence we wrote last season: CASA for scenic air-transport rules, ATSB for public investigations, BOM for aviation weather, the park or marine-park manager for the ground, the ACCC for consumer-guarantee language. Operators win on the live AOC, the live minutes, and the live no-go.

Write four lines in your notes app: airborne minutes, named landmarks or landing, private or shared, AOC holder. If you cannot write those four, you are still shopping adjectives. Prices, which we will not invent, only make sense after the four lines. Weather slack is a fifth line that saves more holidays than a discount code.

On the day, the passenger job is small on purpose. Honest mass. Briefing. Walk when waved. Seat as assigned. Headset. Stay until waved off. Children hold hands. Nothing loose on the pad. No argument with a tail rotor or a cloud cap. If you freeze, say so. If you feel sick, say so. If the desk cancels, eat breakfast and use the clause you copied.

After you land, the place is still a park, a harbour, a marine park, or someone’s farm. World Heritage logos are conservation listings, not stunt permits. Walk where walking is the respectful way. Hydrate if the rest of the day is hot. Do not sprint to a restaurant you booked six minutes after a Southern Ocean slot. That is the whole method, from how-heli-tours-work/weight-balance-and-seating back to the home page and the FAQ.

Mass is a planning input. Seats are assigned. Groups do arithmetic before they do restaurants. The widget on the hub uses the numbers you type and keeps them in the browser. Extra-seat caps are local. Forum souvenirs are not. Lying to a load sheet is not a privacy strategy.

Why the load sheet is not a vibe check

Helicopters have a centre-of-gravity envelope as well as a total-mass limit. That is why a company may ask for height as well as kilograms, why a child sits where the briefing puts them, and why a photographer’s gimbal is cargo. CASA’s air-transport frame for advertised scenic flights includes a load that is known before start. Forum souvenirs about “the R44 number” are not your aircraft on your morning. Collect masses privately, send one email, accept two lifts if the seat count after subtracting the pilot says so, and sit where you are put. Privacy is not a reason to lie. Two lifts are not a punishment. Extra empty seats, when a company sells them, are a local rule — ask, do not scrape a kilogram from a thread.