Ask some people for their definition of a portable quiet generator and many will say that is the type that is easy to carry around and also emits low noise. But ask them what “low-noise” is and many will give vague answers. An undeniable truth is that portable generators have become quiet common.
They come in handy as backup power sources in case of a power outage. They can be used in remote areas that aren’t connected to the electricity grid, and are also used during emergencies when power lines get damaged. Furthermore, the power generators are common in tailgating, camping and concerts.
While their importance can’t be underestimated, we can’t deny the “inconvenience they cause due to noise.” Have you ever tried to sleep while a generator is running, or tried to concentrate when the neighbor is operating his noisy unit? If you have, then you obviously know the inconvenience that comes with it.
In fact, due to the noise produced, many regions have regulations about running these accessories. You are only allowed to use a type that won’t cause any noise pollution and inconvenience to the people around. Standard generators are much louder and the noise decibels are normally above about 70 decibels. The noise decibels emitted by the silent type is usually between 51 db and 60 db.
The following Information is designed to help you make a more clear and precise decision in obtaining the perfect quiet generator for your needs.
BEST QUIET GENERATOR COMPARISON CHART
Yamaha EF2000iSv2, 1600 Running Watts/2000 Starting Watts, Gas Powered Portable Inverter, CARB Compliant!
If you find yourself in need of a portable, quiet generator from time to time, then the Yamaha EF2000iSv2 will definitely impress you. This generator is compact and very portable, so it is great for backpacking or fishing trips. It is also powerful enough that it is RV Ready. This unit has a lot to offer, but here we are going to focus on the key features of this quiet generator.
• Strong Power Output
The generator has a single cylinder, 4-stroke, and air-cooled engine, which gives it the capacity to produce a starting power of 2000 watts. Compared to some of it’s predecessors, the Yamaha EF2000iSv2 has the capability of supporting several applications since it features a running of 1600 watts.
In addition, in case you need more power than this, it supports parallel function, which enables you to connect two generators. Although it is recommended that you use the same model, you can still use the older Yamaha EF2000iS2 model.
• Smart Throttle
The Yamaha EF2000iSv2 features a smart throttle, which helps in noise reduction and efficient energy consumption. When loaded with unleaded gas, the generator can run for up to 10 hours while it is 25 percent loaded with applications. The smart throttle senses the generator’s load and automatically adjusts it’s speed to match the load, hence the improved gas efficiency and controlled noise.
• It Features a Gasoline Petcock
There is a common problem that when generators go for long without use, the gas goes stale. Yamaha took care of this by including a gasoline petcock that lets you shut off the gas and run the carb dry. You can store the gas for later use, which is a way to help you save time, money, and energy. In addition, the generator has a fuel gauge, which displays the amount of gas remaining, therefore, saving you the stress of constantly checking.
• Buyer Guarantee and Warranty
Once you purchase the Yamaha EF2000iSv2, you get a 3-year warranty from Yamaha. This generator is easy to power on as all you need to do is flick the on button in the front of the generator and then pull the draw cord and it goes live.
With the Yamaha EF2000iSv2, you no longer have to worry about running out of power. As you can see from the specifications, it has taken care of all issues you face with other quiet generator models.
Honda EU2000I 2000 Watt Inverter Generator!
As expected, the Honda EU2000i Inverter Generator has proven to be one of the best silent generators available. This incredible product is a result of great engineering and remarkable design. If you are looking for a quiet, reliable, and portable generator with a great design, then the Honda EU2000i is definitely it.
• Honda advanced inverter technology
• Two-tiered noise dampening system
• Lightweight design
• Parallel operation capability
• Oil alert warning system
• Extra 12V DC Outlet
• EPA and CARB compliant
• USDA-Qualified spark arrester
• Clean stable power for the safety of your appliances
• Electronic ignition and automatic decompression
• Operational time of 3.44 to 9 hours on one single tank
– The Ease of Use
This Honda quiet generator comes with a puller starter that works very well with no resistance issues. It has a weight of only 46 pounds making it an ideal generator to carry around for camping or for a day in the field. Maneuvering it is easy and it has an ergonomic handle with a fuel tank capacity of 4.2 liters.
– Noise Reduction
This is one of the best features of the Honda EU2000i because most people believe all portable generators produce loud noises. At 53 to 59 decibels, it is the ideal generator to use anywhere.
– The Power Output
This might not be the most powerful generator on the planet, but it has enough power to keep your house running during emergencies or small commercial operations. For a quiet generator this compact, it comes with great stability and capabilities. The tank capacity might be limited for some but it can be used with an additional external tank. The Honda EU2000i comes with a high rated 1600 running watts and can run for 4 hours at this level and more than nine hours at a quarter of a load. It has one DC outlet and Two AC outlets.
This quiet generator is very easy to maintain because it shuts down automatically when low on oil protecting gears and the engine. The parts are easily accessible and you can clean and replace them easily.
Honda provides a 3-year warranty as long as the generator is purchased from Honda America Authorized dealers. A long warranty like this is a guarantee that the product is well made.
The Honda EU2000i portable inverter generator is one of the best in the market and ideal for all your uses. You can use it at home, at a camp or on the field and it will not only power up all your appliances, but it will be so silent no one will know you are using it.
Honda EU1000i Inverter Generator, Super Quiet, Eco-Throttle, 1000 Watts/8.3 Amps!
Gone are the days when people would pick any generator that provided power. Nowadays, more and more individuals are going for quiet generators. This is clearly due to an increase in regulations in regard to “acceptable noise levels” in neighborhoods. It is now possible to “receive a ticket” for playing your car stereo too loud.
In fact, regulations in regard to the use of portable generators in the neighborhood, tailgating, camping, and in RV parks are stricter when it comes to maintaining a silent environment. Individuals are advised to only run accessories that won’t create a nuisance due to too much noise. Over time, different types of silent generators have been launched to comply with these changes. One of the types is the reputable Honda EU1000i Inverter Generator. But, how does it fair against the rest?
-The Honda EU1000i is an inverter type generator that measures 19.8 inches long, 13.25 inches wide, and is 22.31 inches high. It weighs about 29 pounds without fuel.
– This generator delivers a peak power of 1000 watts at 120 volts AC with the current rated at 8.3 amps. It’s suitable for the home, office, outdoor and can serve as a standby unit, backup or for emergencies.
– Being an inverter generator, it is quiet and efficient. The unit supports a range of accessories including lights, TV, fans, electronics, electrical devices, power tools and more.
– The noise emitted by this generator is between 53 and 58 dBA which makes it fall under the category of quiet generators. This is partially based on the Eco-Throttle which makes it more energy efficient and easy to run.
– Regarded as among the fuel-friendly generators, this gasoline unit will consume about 0.6 gallons of gas in 8.3 hours while running at 1 /4 load.
– The Honda EU1000i comes with a convenient carry handle located at the top region
– Very Silent: This generator is loved by many people because of its silence. This is witnessed even when running at it’s peak or above the 1 /4 load.
– Fuel Efficient: Consumers have praised this generator for consuming little fuel and also emitting minimal fumes.
– Quick Start: This unit receives a thumb up for it’s quick starting that is almost effortless. It starts in an instant even after being stored for a long time or in cold weather.
– Strong and Sturdy: This generator is loved for it’s solid construction and good design. It can withstand bangs, knocks and frequently use. Same people state that it doesn’t break down easily and requires minimal maintenance.
– Compact and small: The Honda EU1000i is considered as a heavy-hitter among the small and compact generators. It’s size together with the carry handle makes moving with it easy and convenient.
-120 Volts only: This portable generator delivers 120 volts and is therefore not suitable for appliances designed for 220-240 AC.
– Not the most powerful: A number of users claim that the unit seems to struggle when connected to several small devices. This may be experienced even when the peak power hasn’t been reached. ( It must be noted that this is a 1000 watt generator and obviously will not be as powerful as larger generators.)
The Bottom Line
The Honda EU1000i scores well in regard to fuel efficiency, quick starting, noise level, portability, and reliability. Anyone looking for a small, reliable, fuel-efficient, compact and quiet generator will find the Honda EU1000i a good choice.
WEN 56200i, 1600 Running Watts/2000 Starting Watts, 4-Stroke Gas Powered Portable Inverter Generator, CARB Compliant!
The WEN 56200i Inverter Generator is a modern quiet generator that has been designed to provide power in a convenient manner. This particular inverter generator has the ability to generate a power of 2000 surge watts and 1600 rated watts. This makes it powerful enough to handle most appliances used in homes, offices and Recreational Vehicles.
It is endowed with a CARB and EPA III compliant 79.9 cc 4-stroke OHV engine. This engine is also super quite where it operates at 51 decibels at a quarter load. This is quieter than the window air conditioners and also quieter than a normal conversation. Consequently, this quiet generator is ideal to be used in homes and offices for it does not cause disruptions. Furthermore, the generator can be used while hunting, tail gating and camping amongst other uses.
This WEN 56200i inverter generator is designed in a way that it has a total harmonic distortion of under 0.3 percent at no load and under 1.2 percent while at full load. This makes it safe to be used with most of the modern electronics such as cellphones, laptops, tablets and monitors amongst others without fear of damage personal electrical items.
This inverter generator is also designed in way that it provides optimum fuel efficiency. This is made possible because of the ECO-Mode throttle which enables the generator to adjust it’s fuel consumption automatically as gadgets are added or removed from the panel. This is important because it prevents the generator from using gasoline unnecessarily. The generator comes with an ultra efficient one gallon tank that provides users with six hours of half load run time.
Users of this generator can also get more energy through linking up two generators using the WEN 56421 parallel connection kit which is usually sold separately. Furthermore, the generator is designed in a way that it has low fuel and low oil automatic shutdown which comes with indicator lights and overload protection safeguard. This is important when it comes to protecting the generator and the electronics from spike damages.
The design of this modern quiet generator is in a way that it is portable and does not occupy a lot of space. The dimensions of the generator are 11 inches by 18 inches by 18 inches and the total weight is 48 lbs. This makes it suitable for people who might not have a lot of space to carry large generators while going for various outdoor activities. Therefore, the WEN 56200i inverter generator is made to provide reliability and efficiency when it comes to power provision.
Briggs & Stratton 30651 P2200 PowerSmart Series Portable 2200-Watt Inverter Generator with Parallel Capability!
The Briggs and Stratton 30651 P2200 portable generator is a state-of-the-art powerful generator engineered by the Briggs and Stratton company. For over 100 years, this company has been one of the leading suppliers of portable generators in North America. This P2200 generator is the latest of the Briggs and Stratton power-smart series.
It produces startup power of 2200 watts and continuous wattage of 1700 watts. This fuel efficient and quiet generator features a computer-controlled engine. The unit has the ability to auto-adjust power generation depending on user demand. Weighing only 55 pounds, this lightweight inverter generator is easily portable and perfect for outdoor use. It comes with a USB port allowing direct charging of your electronic devices wherever you are.
This quiet generator has a 1-gallon oil tank that allows for up to 8 hours of continuous use. While in operation, it produces only about 59 decibels of sound making it fit right into any community standards to avoid noise pollution.
“I had been looking for a generator that would provide stable and reliable electricity in case of any power outages. I was particularly interested in a portable unit that I would be able to carry around when I went camping with my family or friends. After weeks of online research, I was overwhelmed by the numerous models available and the varying reviews on each model.
My neighbor recommended the Briggs and Stratton 30651 P2200 portable inverter generator to me, which he had been using to power his workshop. I was quite skeptical at first since I had previously purchased two generators that had failed to meet my expectations. I eventually bought the generator and I have been using it regularly for about three months now. My experience with this product has been excellent.
I recently carried it on a camping trip and I was greatly impressed by how much of a quiet generator it was. My friends and I were able to keep our phones and laptops charged throughout the trip. After about 7 hours of use, it ran out of oil and we were able to easily refill the tank and continue using it. The H-type handle at the top and it’s incredibly light weight made it quite easy and convenient to carry around. I would highly recommend this generator to anyone looking for a portable and reliable source of power for any outdoor activities. It will certainly prove to be a worthy purchase.”
Westinghouse WH2200iXLT Portable Inverter Generator – 1800 Running Watts and 2200 Starting Watts – Gas Powered – CARB Compliant!
The Westinghouse WH2200iXLT is “easily” one of the best portable inverter generators in it’s price range. It is surprisingly well-featured for a midrange portable generator, putting it shoulder to shoulder with models such as the Honda 2000. The construction of this portable quiet generator combines power and fuel-efficiency with a light, compact build that is often reserved for high-end models. It is an outstanding performer whether it is put to use as a portable power supply for RVs or as a reserve power supply for homes.
Straight out of the box the generator starts with one pull, which is quite impressive and runs with an almost imperceptible hum. On it’s first run, the Westinghouse WH2200iXLT surprised us by outrunning similarly priced Hondas, which will sometimes require an extended run tank and adapter keep up. It has one of the most impressive run-times ever seen on a generator at this range. On a single tank of fuel, it can power a medium-sized household with inside and outside lights, a TV, and a few chargers with unexpected ease for over 12 hours.
The build quality is definitely worth writing home about. Despite being light and compact, the Westinghouse WH2200iXLT is quite capable of surviving more than a few tumbles off of your truck’s bed. What’s more, the tough exterior does not add to it’s weight significantly.
The variation in engine speed on the Westinghouse WH2200iXLT is what makes it one of the most energy-efficient models in the market. Instead of running at consistent speeds, it’s engine adjusts to the current power load, allowing you to limit the amount of fuel that is consumed when smaller or less-demanding appliances are plugged in.
Also, it has a much lower amount of THD (total harmonic distortion) than most Inverter generators, making it less susceptible to dangerous spikes and power drops. Charging power-sensitive electronics such as cellphones, tablets, and laptops is much safer thanks to its reliable power output.
A double-insulated acoustic hood, asymmetrically positioned fans, and dual mufflers make the Westinghouse WH2200iXLT one of the quietest portable inverter generators out there. The noise levels are impressively low considering the sheer capabilities of the portable generator.
Overall, the Westinghouse WH2200iXLT is a top-notch portable generator that exceeds all expectations by far. From it’s effortless one-pull start to it’s impressive fuel efficiency, it is a portable generator that is well worth your money. The icing on the cake is that every purchase comes with a 2-year limited warranty and great customer support from qualified professionals.
Generac 6866 iQ2000 Super Quiet 1600 Running Watts/2000 Starting Watts Gas Powered Inverter Generator – CARB Compliant!
The Generac 6866 iQ2000 is a nicely made quiet generator that provides power backup for electrical devices in case of power failure. It’s suitable for supplying power in different outdoor environments like tailgating events, campsites, parks and backyard parties. The generator can be connected to different appliances and electronics. It features a state-of-the-art technology thanks to the brilliant engineering. Let me walk you through a detailed review of the product;
Generac OHV Engine
The engine is built to generate reliable power and deliver a long life. It’s fitted with plateau honed cast cylinders which reduces engine wear and decreases oil consumption. Further, it comes with a dual element air filter which extends service intervals and protects the engine from dirt even in the toughest working environments.
The Generac 6866 iQ2000 is a quiet generator. During an independent test, it was quieter than the Honda EU2000i at 50% load. It uses a unique alternator compared to other standard generators . It features a digital inverter module which converts raw power from direct current to alternate current power. Based on the electrical demand, the engine speed will vary to reduce noise levels. This ensures your outdoor time is not disrupted by loud machinery.
- Compact Light Weight Design
- It’s easy to carry the generator whenever you need power.
- Parallel Ready
- Engineered to connect with a similar unit for double power.
Smart LED Dashboard
This ensures the user is fully informed on the generator’s operating status. The user is able to check the fuel level to know how much time the generator will operate without refueling. One can also check whether the generator is overheating. In addition, the display will show the wattage the generator is producing. Other status indicators include low oil and over loading alerts.
Three Modes Of Operation
One can select standard, turbo or economy mode based on your preference. If you need high power output, you can switch to turbo mode. For intermediate load requirements, you can switch to standard mode.
It integrates start, run and stop functions.
In summary, as far as quiet generators go, the Generac 6866 iQ2000 is a game changer. It has opened a new chapter in the history of quiet generators. Some say it is quieter than the Honda, minimizes any disruption in your lifestyle, and offers real value for money.
MAIN REASONS TO GET A PORTABLE QUIET GENERATOR
1. In Some Neighborhoods, Loud Noise Is Disturbing And Prohibited.
As civilization progresses, the spaces between homes are becoming smaller. However, the power needs continue to increase. And to ensure that they have power anytime including when there is a blackout, many people are investing in portable generators. This enables them to run most electrical devices in the home, office and other places. Sadly, while they improve convenience when it comes to power, generators can cause lots of noise pollution. Imagine you, your neighbor and the other neighbor running generators at the same time? Noise, Noise and more noise is what you get. This can make life pretty unbearable.
To avoid such troubles, people are advised to go for silent generators. The noise of a unit is normally indicated on the sticker on the accessory and it pays to familiarize with what is termed too noisy. In most cases anything above 75dB is deemed too noisy and it is better to always aim for the lowest number.
2. There Are Loud Noise Restrictions on Some Campgrounds.
Another area that uses portable generators is campsites. Although people want to become one with nature, many can’t do without the little luxuries in life. While sleeping under the tent, staring at the skies, or enjoying a meal or drink by the bonfire is what many people want, many can’t let go of their phone, tablet, laptop, chargers and other electronics. Many also want to enjoy quality lighting even in the wild, play music from their stereo, use the bread toaster or whip some smoothie or juice with the blender.
Running the standard generator, although effective, can be a bit of an inconvenience especially in the peak season. Firstly, the spaces between different groups are much smaller. And secondly, several generators will be operating at the same time. To keep the environment less-noisy and reduce confrontation between the campers, many campgrounds have regulations pertaining to the portable generators. They ask people to carry types that produce the minimal noise possible.
3. There Are Loud Noise Restrictions When Tailgating Or At Other Public Events.
Another area where noisy portable generators are discouraged or restricted is during tailgating and public events. Normally, the people will be driving or parked very close to each other. In some instances, the space between the vehicles, camping vans, or RVs will be so little. Now picture you and your group running your generator, the other party a few inches away operating theirs, and the other revelers also doing the same. Instead of the event being fun-filled and exciting, it will be more of a shouting match as you struggle to speak and listen what the other person is saying.
When hosting public events such as concerts, social gatherings or in tailgating, the organizers ask the participants to only carry silent generators. This type will work just like the standard type but will produce very minimal noise. Modern types are more efficient than earlier types in fuel efficiency, power delivery, and noise production. It’s also important to regularly service the unit so as to inspect if the muffler which is responsible for containing the noise is in good condition.
Benefits of a Quiet Portable Generator
The following are the key benefits of investing in a portable generator:
– Portability: A good unit is fairly-light, compact and easy to carry from one place to another. This provides power anywhere, anytime.
– Reduce Noise Level: Quiet generators produce low noise allowing people to enjoy their experience. There will be no distractions, struggling to hear or having to shout to be heard.
– Maximum Satisfaction: Minimal noise ensures the people enjoy the outdoors better. Top types are very silent and can be used even in very quiet environment even at night.
– Reduce Noise Pollution: Noise is not only a nuisance but can have negative effects on health. Exposure to loud or continuous noise may make a person stressed, depressed or harm the ears.
– Peace of Mind: Due to their silent nature, quiet generators are less-likely to bring confrontation between you and the people around you. You also don’t have to worry about receiving a warning from the authorities.
Listed above are some reasons why a silent portable generator is better than the standard type. Due to low noise production, it can be used in camping sites, tailgating, in the neighborhood and other regions without contravening the laid down noise regulations. We also have talked about the benefits that come with a good and reliable quiet portable generator. Its easy to carry around, produces bearable noise, reduces noise pollution that may harm your health, offers you peace-of-mind as well as maximum satisfaction. To get the best service and enjoy the experience, it’s crucial to go for well-known and reputable brands. Also important is buying the units from trustworthy sources.
What Actually Makes An Inverter Generator Quieter Than A Standard Gemerator?
There are commonly two basic types of Generators. These are standard generators and inverter generators. The basic difference between these two types of generators is the mechanism in which they operate to generate energy in form of electricity. The Inverter Generator combines the use of both inverter and generator, hence the name “inverter generator”. To clearly distinguish between a standard generator and inverter generator, there is a need to begin by explaining clearly what exactly is meant by both terms-generator and inverter.
A standard generator (often referred to as the conventional generator) is a source of electrical energy that consists of another source of it’s initial energy which it uses to generate electrical energy. This initial energy source may be in form of fossil fuel such as gasoline, propane or diesel. This energy acts as a source of power to a simple motor that is attached on the generator’s alternator.
This makes it produce electricity. In order to produce the desired constant energy, the generator’s motor must operate at a constant speed. For example, in most households that use generators to generate energy, the motor runs at a constant speed of 3600rpm to yield the standard current (120 Volts AC @ 60 Hertz). Fluctuation of the engine’s speed (rpm) leads to fluctuation of the electrical output.
Inverters on the other hand are known to draw power from fixed source of DC such as a car battery and and solar panel (comparatively fixed). The DC power is then inverted into AC power using electronic circuitry. The frequency and voltage of the inverted AC (or rather converted) depends on the equipment used, but the most common one is 12VDC power from boat, car and RV batteries converted into 120 V AC power. This is in most cases the amount of energy required for use in most households.
An inverter generator combines the use of both a standard generator and inverter. They are more recent as compared to both inverter and standard generator. It’s electronic circuitry is relatively advanced and of high-tech magnets. Just as conventional generators, they are three phase and they output AC in the same traditional way, but the resulting current is then converted to DC and thereafter inverted back to fresh AC power which helps to maintain one phase at the required voltage and frequency. this is the reason why they are called inverter generators.
WHY ARE INVERTER GENERATORS QUIETER THAN STANDARD GENERATORS?
The two categories of generators are especially distinguished by the issue of noise they produce while generating electrical energy. The first reason is obvious -inverter generators are made from the ground up to be as quiet as possible. They comprise special mufflers and engines that are comparatively quiet. Sound dampening technology is also employed in making these generators, which substantially assists to bring down sounds they produce to the barest minimum.
Secondly, conventional generators have to run at a constant rate to yield the required amount of energy. For this electricity to be of the desired characteristics, the generator has to run at a constant speed. For example, the rate of 3600rpm produces120VAC @60Hz in most cases. Varying the speed of the engine results in variation of the quality of electric power generated. but this variation is undesirable.
So the engine must be kept running at full speed, producing loud sound, in order to generate the energy required. In the case of inverter generators, inverters automatically adjust the characteristics of electrical power produced. this technology uses special electronics and microprocessors.
This means that when the load is light, the engine can slow down. in the process, energy is saved and the noise is reduced to a considerable extent. A good example is ain inverter generator that only produces 51.5 decibels while running at 1/4 load (which is a similar decibel level to human conversation). At full load, it only produces 60 decibels. On the other hand, most conventional generators runs at 65 to 85 decibels (average speed).
CAN A LARGE INVERTER GENERATOR BE AS QUIET AS A SMALL INVERTER GENERATOR?
A small inverter generator is quieter than a large inverter generator. This is because a larger inverter generator has a larger engine and operates on a heavier load as compared to the small one. Operating on a heavier load means that more energy is required. Though not similar to the amount of energy produced by any conventional generator, a larger inverter generator generally produces more noise than a smaller inverter generator.
However, the relatively high noise produced by a large inverter generator can be overcome by adoption of parallel operation system in generation of energy. In parallel operation, identical units of inverter generators are paired to double power capacity/power generation.
This therefore means that two smaller and lighter generators can be made to generate amperage and wattage equal to that which a large inverter generator can produce. This is much convenient in terms of portability, noise produced and the size of generators.
Decibel levels of 0-50 are in most cases considered to be quiet. However, it all depends on the circumstances and the context within which the machine that produces the noise.
In a conclusion, both standard and inverter generators are preferred for use under different circumstances. In ruling out which is better, its important to consider all other factors like the cost of buying, transportation and fueling, complexity and simplicity of use by consumers.
The following Decibel chart shows daily noises and their appropriate examples in daily encounters.
Environmental Decibel Chart
0 a healthy hearing threshold
10 dropping of a pin
20 rustling of leaves
40 a babbling brook a computer machine
50 a light traffic noise – a refrigeration machine
60 a conversational speech – an air conditioner
70 showering – a dish washing machine
75 flushing of the toilet – a vacuum cleaner
80 ringing of the alarm clock – disposal of the garbage
85 a diesel truck passing a snow blower
90 a lawn mower an arc welder
95 a car passing in the subway – food processing machine a belt sander
100 riding of a motorcycle – a manual drill
105 a sporting event – a table saw
110 a rock band – a jackhammer
115 the siren of an emergency vehicle – a riveter
120 a thunder clap – an oxygen torch
125 popping of a balloon
130 crowd noise in a stadium
135 siren of the air raid
140 taking off of a jet engine
145 a firecracker
150 launching of a fighter jet
155 a handgun
160 a shotgun
165 magnum revolver (357)
170 a safety airbag
175 a howitzer cannon
180 launching of the rocket