14 best cox model engines

Product description

The Estes C6-5 engine is a single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.

• Can NOT ship to HI, AK, APO. Puerto Rico and international addresses

User questions & answers

Question:	Is there a combined shipping discount for ordering multiples of the same item at the same time to the same location
Answer:	Yes, the model was very easy to paint and dried very well.
Question:	What is the size
Answer:	It would not be feasible. Some parts are glued together. Some parts are fragile and would break when trying to disassemble.
Question:	do all 3 packs of engines a-3 thruc-7 comre with wadding and igniters plugs
Answer:	You will have to paint it. it comes molded in a gray color, common for plastic models. You will also need the proper glue.
Question:	What are the differences between this and other engine packs ( eg. A8-3 )? Can they be substituted
Answer:	Yes, it is more than that, but it's not too ambitious for a 12-year-old. It involves reading and comprehending instructions and gluing together plastic parts, as well as some painting (if desired). The kid will have to exercise patience. But it's good training and it's within the capability of age 12. Trevor

Product description

This mini bulk pack provides 9 of the most popular model rocket engine in the market. The Estes B6-4 is used to provide medium altitude flights for model rockets weighing roughly between 1 and 2.5 ounces which is typical of most rockets being 1 to 2 feet tall. Refer to the instructions or packaging that came with your model rocket for the engines you should be using. Estes model rocket engines are the standard in the model rocket industry for easy to use and reliable propulsion for your model rockets.

• All the engines you need for medium altitude model rocket flights
• The best way to get engines in bulk without having to buy 24 of them.
• Estes engines are the model rocket industry standard
• This set of engines is for rockets that are roughly 1 to 2 feet tall and weighing between 1 and 2.5 ounces

User questions & answers

Question:

Does it come with igniters and plugs

Answer:

When you are looking at the name of a rocket motor, there are really 3 things that the name tells you. First, the letter determines the total impulse of the motor (AKA the total energy release). Pretty much, an A class motor will have a total impulse of 0-2.4 Newton seconds of impulse, a B will have 2.5-4.9, and a C will have 5-9.9. This continues indefinitely as motor power increases. The number immediately after the first letter is the average thrust of the motor during the burn duration. In this case, the C6-4 will produce an average of 6 newtons of thrust, while the A8-3 will produce about 8 newtons. The thing is that, while the A8 produces more power, the C6-4 will burn much longer since it contains more fuel. Pretty much, the higher the number, the lower the burn time. Finally, the number after the hyphen is the delay before the ejection charge is deployed. For small rockets like these, you don't need the charges to be perfect, so anything between 3 and 5 seconds will usually be fine. However, if you are building a larger rocket, like F class or above, it is a good idea to do some calculations to estimate when the charge should fire, or you should use an electronic deployment system.

Product description

Note:The color of the item may vary slightly due to photography and your own computer /Phone

Please allow some little manual measurement error.

Customer Satisfaction Guarantee

If you are not 100% completely satisfied with our products, please do not hesitate to contact us to request a refund or exchange!



Note:Check your specific model's manual for compatibility,or Contact us.

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User questions & answers

Question:	Will these work in my hpi Savage
Answer:	Go to Estes website. Everything you'll want to know is there.
Question:	What glow plug do I need for a .16 nitro motor is it an n3 or n
Answer:	Just plugs and igniters

Product description

001469 features: -recommended engines: a8-3 (first Flight), b4-4, b6-4, c6-5, c6-7, crossfire. -Includes: plastic fins, self-stick decals, 18 in. (46 cm) parachute recovery. -Crossfire includes: laser cut wood fins, self-stick decals, 12 in. (30. 5 cm) parachute recovery. Gender: -boy. Category: -early development toys. Minimum age requirement: -8 years and up. Generic dimensions: -Product weight: 2. 5 lbs. Dimensions: Overall height - top to bottom: -33. 6 inches. Overall Width - side to side: -1. 08 inches. Overall depth - front to back: -1. 08 inches. Overall product weight: -2. 5 pounds.

Blast model rockets to amazing heights with the Estes Tandem-X Launch Set. An ideal introduction to rocket building, this set contains two rocket kits: the Amazon and the Crossfire ISX. It also comes with a launch pad for easy launching, plus two plastic parachutes that ensure a gentle descent to the ground. Whether you're a new rocketeer or a seasoned veteran of the skies, the Tandem-X is sure to deliver plenty of high-altitude thrills.

Learn the basics of crafting model rockets with the 3-foot tall Amazon and 15 inch Crossfire. View larger.







Its launch system includes a stabilizing launch pad and push-button controller. View larger.

Blast Off to Extreme Heights

With two rocket kits, the Tandem-X Launch Set offers two unique launching experiences. The aptly-named Amazon is the bigger of the two rockets: it towers at almost three feet tall and features a fearsome tiger-stripe decal. When flown with a standard Estes engine, the Amazon can soar to heights of 600 feet.

The Crossfire is a smaller craft, standing just a little over 15 inches tall. In spite of its size, this little rocket can blast off to seriously impressive altitudes. Thanks to its aerodynamic fins and nose cone, the Crossfire can reach cloud-bursting heights of 1,150 feet. Both rockets are outfitted with colorful, preassembled parachutes, which ensure they can float gently back to Earth for another flight.

An Introduction to Rocket Building

The Tandem-X Launch offers just the right amount of challenge for novice rocket builders. The Amazon is an E2X (easy-to-assemble) rocket, and requires no paint or special tools for assembly. It can be built in less than an hour: simply glue the plastic fins to the tube, install the engine, and attach the parachute. Finish the rocket off with a few self-stick decals, and you're ready to launch.

Once builders have mastered the basics, they can move on to the more advanced Skill Level 1 Crossfire. With its plastic nose cone and laser-cut balsa fins, the Crossfire requires a little more finesse. Assembling the rocket can take an entire afternoon, but it's a rewarding and educational process. Builders will learn several beginner-level rocket techniques, such as painting and sanding. Estes has also included an illustrated, step-by-step instruction guide to help keep the assembly fun, smooth, and frustration-free.

Educational Fun

In addition to the thrills it provides, the Tandem-X also has significant educational value. The set transforms kids into amateur rocket scientists, encouraging them to think about how the rockets work. Rocket building teaches kids the basics of propulsion, flight, and aerodynamics, and can help foster an early interest in science and engineering. Even failed launches can turn into a learning experience.

Requires an Estes Engine

Both rockets require a specialized Estes engine to launch. For the Amazon, Estes recommends a B4-2 engine for your first flight. The rocket is also compatible with other Estes engines, including the B4-4, B6-2, B6-4, C6-3, and C6-5. For the Crossfire, Estes recommends the A8-3 for first flight, and the B4-4, B6-4, C6-5, and C6-7 for more advanced launching.

What's in the Box

Estes 1469 Tandem-X Launch Set with Amazon rocket kit, Crossfire ISX rocket kit, two plastic parachutes, launch pad, and push-button launch controller.

From the Manufacturer

Two is better than one. You’ll get X-tra value with the Estes Tandem-X Model Rocket Launch Set. This exceptional rocket set features a pair of extreme, high performance rockets with a launch system for launching them. Whether you’re a new rocketeer or a seasoned veteran, launch in tandem for an exciting model rocket experience. The E2X (Easy to Assemble) Amazon is as imposing as the name sounds. This giant towers almost 3 ' (91 cm) high and is quick and easy to build. A tiger-striped body tube, precolored plastic nose cone and fins and self-stick decals make building this rocket easy to do in about an hour. When flown on our standard engines, this huge rocket can reach heights over 650 ' (198 m) with recovery on a colorful 18 " (46 cm) preassembled parachute. The Crossfire ISX is a Skill Level 1 kit that can easily be built in about a day. This rocket features a totally streamlined shape with aerodynamic fins and nose cone. It stands 15.6 " (39.6 cm) tall. When launched with powerful Estes standard engines, this bullet can reach cloud busting heights up to 1,200 ' (366 m). A preassembled 12 " (30 cm) parachute returns the Crossfire back to earth to launch again and again. Glue, modeling tools and Estes engines required - sold separately. The Electron Beam Launch Controller uses 4 AA 1.5V batteries - sold separately. Recommended for ages 10 and up with adult supervision for those under 12.

• The is quick and easy to assemble, This huge rocket, standing 30in tall, can reach heights over 650 feet with recovery on a colorful 18 inch preassembled parachute
• The Crossfire can easily be built in about a day and features a totally streamlined shape with aerodynamic fins and nose cone. This bullet can reach Cloud busting heights up to 1, 200 feet
• Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Recommended engines: a8-3 (first Flight), b4-4, b6-4, c6-5, c6-7
• Tools, construction and finishing supplies sold separately. In order to launch, model rocket engines, starters and recovery wadding are required - sold separately

User questions & answers

Question:	If I bought this, what other accessories would I have to buy in order to have a successful launch
Answer:	I've only used it once and it didn't leak.
Question:	Exactly which rocket motor and rocket motor igniter models do I need for this particular set? Lee W
Answer:	No the outside is not waterproof. I would guess you could spray it.
Question:	what other items do I need to purchase for the set to work
Answer:	There was no paperwork in the package so I have no idea.
Question:	I want to buy this for my son. What "accessories" (other items) do I need to buy for it to work (batteries, wadding, etc
Answer:	I don't have any in the house. According to Alexa, a 2 liter bottle is 12 inches tall. The inside of the cooler is only 10 inches so it will not fit 2 liter bottles standing up. They will fit if you lay them down.

Product features

Estes Tandem- Flying Model Rocket Launch Set

The Tandem-X Launch Set offers Xtra value with two rockets. The Crossfire ISX is a Skill Level 1 rocket that streaks over 1,200 feet into the sky. The E2X Amazon is just short of 3 foot long and flies over 600 feet.The Tandem-X Launch Set includes a launch pad and launch controller.

Both kits are very easy to build. The Crossfire's laser cut fins are the last word in precision. Amazon's got plastic fins that always go on straight. No painting is required for the Amazon, thanks to the vibrant decal set. Crossfire's got cool decals, too.

Estes Tandem-X Launch Set:

Crossfire ISX:

Product description

The Estes A8-3 is a single stage engine designed for model rocket flight. It is a standard engine designed for flights in rockets weighing less than 3 ounces, including the engine. Each package includes 3 engines, 4 starters, and 4 starter plugs.

• A8-3 Engines, 3 - Starters, 4 - Starter Plugs
• This engine is a standard engine designed for flights in rockets weighing less than 3 ounces, including the engine
• Single stage engine

User questions & answers

Question:	Is wadding included with the engines
Answer:	They will work w a 16 nitro engine regardless of the brand or model.
Question:	Can you take this product on plane through airport security
Answer:	I'm using these n3 in my 16 nitro engine and they're working great.
Question:	Alot of work, we have engines, goofed on the igniter insertion plug. failure to launch.😞 have engines just need ' do over'/try again igniters
Answer:	Yes. I think each pack comes with 4 ignites and 4 plugs.
Question:	Does this include igniters
Answer:	Our shipping is free

Product description

This combo pack provides 3 each of the most popular Estes engines for use in most model rockets. The A8-3 is used for first flights and small flying fields as you get used to how your rocket will perform and where it will land in your flying field. The B6-4's will almost double your altitude. The C6-5's will provide almost double the altitude that the B6-4's can provide. Refer to the instructions or packaging that came with your model rocket for the engines you should be using. Estes model rocket engines are the standard in the model rocket industry for easy to use and reliable propulsion for your model rockets.

• All the engines you need for low, medium, and high altitude model rocket flights
• The best way to get engines in bulk without having to buy 24 of them.
• Estes engines are the model rocket industry standard

User questions & answers

Question:	Do i need wadding with these engines
Answer:	Wadding was not included with the engines I purchased.
Question:	Does it require batteries
Answer:	I highly doubt it. Technically these engines are marketed and registered as a firework for legal purposes. You might double check for the legal specifics with TSA or the manufacturer, ESTES, for the legal parameters. I do know when I have ordered them they are shipped by ground transport due to air freight requirements and limitations.
Question:	Do these come with ignitors and plugs
Answer:	First off, make sure you have strong batteries in the controller in your hand. The igniter has to be placed into the engine so the chemical covered end of the wire loop is touching the solid fuel. Then insert the plug carefully so the wires don't short together. Assuming you have everything hooked up right, There is a circuit test feature in the launch controller that glows to let you are hooked up right. It comes with the instructions. The engine 3-pack usually comes with 4 igniters in case there is a failure. These are one-use items, as are the engines. Extra igniters are available from Amazon, Estes themselves, or any other retailer marketing Estes products. With numerous launches you will eventually build up a small stock of extra igniters. I personally place them in a small medication container to protect them as they are fragile. With the rocket on the pad watch for the wires and clips touching the blast plate shorting it out. On some rockets it might be necessary to put something on the blast plate to raise the rocket up on the launch rod about a a half inch or so. A small pebble works nicely. With the rocket properly packed, engine igniter in, and the indicator showing the circuit is good, arm the launcher and press the button. It may take a a couple of seconds to fire. Have fun! Be safe.
Question:	Do you need igniters with these
Answer:	INCLUDES: Three A8-3 Engines Three Igniters Four Igniter Plugs

Product description

Estes recovery wadding keeps your parachute in perfect shape when used properly. The leading cause of unsuccessful flights is failure of recovery deployment. If your rocket is precious, consider one of model rocket shop's recovery upgrade kits with Kevlar, Nomex and a nylon parachute. Replacing Estes fragile Knicker elastic shock cord and "bin-liner" Parachute and using permanently attached Nomex cloth instead of paper wadding can lengthen the service life of your missile!

From the Manufacturer

Flame resistant wadding protects recovery system. Required for most Estes rockets.

• Rocket accessory
• Contains 75 sheets
• Enough for 18-25 flights
• Flame resistant
• Required for most rockets

User questions & answers

Question:	I got this stuff for the first time today. There were about 15 two-foot long sheets instead of 75. Is that normal? Are you supposed to cut it up
Answer:	Yes, Recovery wadding is sold separately.
Question:	Amazon says they cannot ship to my address which is a typcal mid-western street address. Why will they ship me rocket engines and not the wadding
Answer:	The batteries go in your ignition box, the rocket engineS comes with igniters
Question:	What is the rcovery wading for
Answer:	Yes
Question:	Can you use the engine pack more that once
Answer:	Yes They come with igniters.

Product features

Recovery Wadding

• The flame resistant wadding is required in most Estes rockets unless they are tumble recovery.
• Contains 75 sheets, enough for about 18-25 flights and is absolutely necessary to launch model rockets.

Product description

Estes model rocket engines are simply the best! We have been making rocket engines for over 50 years. Estes developed the first machine to mass produce solid propellant model rocket engines which gave rocketeers a consistent and reliable way to launch rockets. Because of our quality and reliability, Estes engines are considered by many to be the standard in the model rocket industry.

• Includes 4 - A3-4T Engines, 4 - Starters, 4 - Starter Plugs
• Mini engine designed for lightweight rockets
• Single stage engine

User questions & answers

Question:	Can these rockets be lighted by pressing a 9-volt battery to the ignition terminals
Answer:	yes, tear it up when you go to stuff it in your rocket, wad each piece to take up room and fill the rocket with 1 to 2 inches to protect the recovery device. If you look real close you will see it had cuts to tear off smaller sheets.
Question:	How far does it go
Answer:	No sure. Use tissue paper. 1st time my boys and I shot a rocket forgot wadding at home. My wife always had a tissue box in truck and we tore it Into 3x3 inched stuffed the rocket with about 4 pieces and it protected the parachute and made seeing the rocket in sky for recovery easy. My boys want to experiment with bright colors next
Question:	Do these engines have a secondary charge to deploy the parachute
Answer:	Use it to protect your parachute from melting when the hot ejection charge goes off to deploy the parachute.
Question:	Do these engines come with igniters and igniter plugs
Answer:	If your question is about wadding, then you can only use it once. As for the engines for model rockets, they are usually one-time use only.

Product description

"Journey" to outer space with the high flying journey! powered by standard Estes engines (sold separately), you can reach heights of 1100 feet! the easy assembly allows you to be at the launch site quickly! all rocket parts are pre-colored and decals are self-stick for easy assembly. After each flight, simply insert new recovery wadding and a new Estes rocket engine with a Starter and plug. Repack the parachute, place on the launch pad and blast off.

• Skill Level: Beginner

User questions & answers

Question:	Set missing the stand-off stem!!! Can’t use and no way to contact seller??? Help
Answer:	To make a barrier between the engine heat and the parachute, so it does not get burnt.
Question:	what is the delivery charge
Answer:	We were SUPER impressed with how high this went - easily 250ft - yes.
Question:	What is included in this set
Answer:	Certainly no permit needed. Pay no attention to the canadian.
Question:	What type of engine do you use would a b or c be fine
Answer:	I wouldn't suggest it.

Product features

Estes Journey Model Rocket Launch Set

Overview

We invite you to take a Journey! Be a rocketeer and experience the wonder of creativity, innovation and exploration with your own craft. This classically-designed, beginner skill level rocket will thrill every time you launch it into the blue. Powered by Estes model rocket engines (sold separately), the Journey can soar up to 1100 feet. The Journey’s pre-colored parts and easy self-stick decal make this launch set a perfect choice for novice modelers.

Do you marvel at humankind’s achievements in space as we here at Estes do? When you look at the moon, do you wonder at the ingenuity that took man there? Even now, NASA continues to push past the it-can-never-be-done limits with their InSight Mission, whose aim is to explore, for the first time, the deep interior of Mars. Thrilling stuff!

About Us

Our Mission

To work relentlessly to create exceptional customer experiences. Everything we do is designed to ignite passion for creativity, exploration, and innovation.

Our History

Estes Industries was founded in 1958 in Denver, Colorado. Vern Estes developed a machine that mass-produced solid propellant model rocket engines.This invention gave people a consistent and reliable way to launch model rockets. Later, the company branched out into the mass production of balsa nose cones and adapters for model rockets. Estes began selling model rockets by mail in 1960.

The company was moved in 1961 to a 77-acre tract of land on the outskirts of Penrose, Colorado.

Product description

This mini bulk pack provides 9 of the popular Estes A8-3 model rocket engines. These are used to provide low altitude flights for model rockets weighing roughly between 0.8 and 2 ounces which is typical of most rockets being 10 to 18 inches tall. Refer to the instructions or packaging that came with your model rocket for the engines you should be using. Estes model rocket engines are the standard in the model rocket industry for easy to use and reliable propulsion for your model rockets.

• All the engines you need for low altitude model rocket flights - perfect for small fields!
• The best way to get engines in bulk without having to buy 24 of them.
• Estes engines are the model rocket industry standard
• This set of engines is for rockets that are roughly 10 to 18 inches tall and weighing between 0.8 and 2 ounces

User questions & answers

Question:	Are engines one time use
Answer:	How high an A3-4T will carry a rocket depends entirely on the weight and streamlining of the rocket itself. The biggest factor is its weight however. An Estes Mini Mosquito will take off so fast and fly so high, it will likely be lost when flying on this motor. Using them on an Estes Alpha III with a mini-engine adapter will give you a much slower flight and about 230 feet altitude. So it varies greatly.
Question:	Does it come with wadding
Answer:	The motors have a single ejection charge, which will go off 4 seconds after the motor stops burning. That will pop out a parachute, yes.
Question:	Do they come with starters
Answer:	Yes. As far as I know, all the engines come with igniters and plugs.

Product description

Plentiful power for sport and aerobatic aircraft!

Ease, dependability and performance are what make engines popular — and they're also three good reasons why the 46AXII has become an instant flyer favorite. Lightweight and low maintenance, the 46AXII is as good a choice for easy sport flying as hard-charging aerobatics. An extension cable and an angled high-speed needle make fine-tuned performance and maximum personal safety easy to enjoy.

• Simple, side-exhaust design.
• Power Box muffler features a squared-off shape for easier fits in more cowls.
• 40K carburetor has high- and low-speed needles, plus a mixture adjustment screw. Tighter tolerances between the piston and ABL create a tighter compression seal and improved power.
• Dual ball bearing-supported crankshaft lowers friction and wear.
• Head automatically centers and levels itself — and snugs down with just 4 screws.
• Subtly tapered low-end needle eliminates surging at transition, ensuring smooth,
  
  controllable power across the rpm range.
• Updated liner ports and a ball-milled inlet port minimize turbulence and promote better fuel/air mixing.
• Minimizes "creep" and resets with seals on both needles and a ratchet spring on the high-speed needle. A rotor guide screw eliminates spring-related movement, too.
• Includes a lock nut and a longer crankshaft with more thread length to ensure better
  
  prop nut engagement and greater pilot safety.
• Includes glow plug, muffler, cable extension and warranty.
• The ABL (Advanced Bi-Metallic Liner) includes one layer for better bonding, and another to reduce wear and extend life.
• A needle-valve extension cable and rear-angled high-speed needle maximum pilot safety and convenience.
• A generously sized chamber and larger sound baffle help the Power Box muffler significantly reduce exhaust noise without compromising power. Rotatable exhaust outlet provides effective, no-cost finish protection.

Requires:

• Glow fuel containing 5-20% nitromethane content and at least 16% lubricant content
• Propeller (10.5x6, 11x6-8, 12x6-7 are recommended; use 10x6 for break-in)

Specifications:

• Displacement: 0.455 cu in (7.45 cc)
• Bore: 0.886 in (22 mm)
• Stroke: 0.772 in (19.6 mm)
• RPM Range: 2000-17000
• Output: 1.63 hp @ 16000 rpm
• Weight w/Muffler: 17.1 oz (486 g)
• Engine: 13.3 oz (378 g)
• Muffler: 3.8 oz (108 g)
• Suggested Propellers: 10.5x6, 11x6, 11x7, 11x8, 12x6 & 12x7
• Break-in Propeller: 10 x 6

• 46AXII ABL (Advanced Bi-Metallic Liner) 2-stroke Model Airplane Engine
• Ideally suited to sport and aerobatic aircraft.
• Simple, side-exhaust design.
• Includes 40K carburetor, needle valve extension cable, lock nut, #6 glow plug and, E-3071 muffler
• Requires glow fuel and propeller

User questions & answers

Question:	Will this work in a truck also. Like for say a traxxes TMaxx 1/10 replacement for a
Answer:	Each engine can only be used once.
Question:	Is this engine ready to run. If hoses connected from the glow fuel tank and is a full starter
Answer:	If you order it from Ippy’s Hobbies it does.
Question:	can this engine work wih the normal 2 stroke gas as a weedwacker would use
Answer:	Yep! And plugs to hold the starters in.
Question:	Im a beginner to gas plane can some tell me if this "asp s25aii two stroke glow engine w/remote needle" can work on 2 stroke fuel like a weedwacker
Answer:	Certainly not safely. These rockets are a 100 feet in the air in seconds. If you were that close on ignition you most likely would be burnt.

Product description

Estes model rocket engines are simply the best! We have been making rocket engines for over 50 years. Estes developed the first machine to mass produce solid propellant model rocket engines which gave rocketeers a consistent and reliable way to launch rockets. Because of our quality and reliability, Estes engines are considered by many to be the standard in the model rocket industry.

• Includes 3 - C6-3 Engines, 3 - Starters, 4 - Starter Plugs
• This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine
• Single stage engine

User questions & answers

Question:	How much does the engine weigh
Answer:	Not the right application for this engine. This one is designed for aircraft. Go to the O.S. website and you will find several models for car and buggy use.
Question:	I like to know the dimmensions of the C-6 engine is 18mmx7mm
Answer:	Engine is ready to run, but you must break it in. Just hook up the lines, prime it by cranking with your finger over the exhaust and fire it up.
Question:	How heavy of a rocket can it power
Answer:	No this engine must run on a 2 stoke nitromethane based fuel
Question:	What does the first line of the packaging mean, “Engines for model rockets with igniters and plugs” mean? Do the engines have the igniters and plu
Answer:	As others have said you need to purchase glow fuel specifically designed for this type of engine. Typically it sells for approx. $20/gallon. There are gas engines made for hobby aircraft and they would require 2 stroke fuel such as you describe......this engine is not one of them.

Product description

Estes B4-2 Motors Ground Shipping Required 18mm Model Rocket Motors 3 Pack including starters and plugs. Time delays: 2 seconds

• 3 pack

Product description

Contains 24 engines including six each of the A6-4, B6-4, C6-3, and C6-5 with 30 igniters and 100 sheets of wadding. *Shipping time of this product may take up to 10 or more business days to reach your destination. Because its contents is of a hazardous material, this parcel is federally mandated to undergo x-ray precautionary measures at each postal facility. We fully insure your parcel for its inherent value and provide an insured tracking number which will be sent to you upon product shipment. HazMat items (such as rocket engines and motors) are shipped via United States Postal Service only.

User questions & answers

Question:	Hello... This is one size bulk pack of A8-3 Estes rocket engines; right
Answer:	A single Estes C6-3 engine weighs 0.88 oz (24.9 g) before ignition. Maximum liftoff weight including engine is rated at 4 oz (113 g).
Question:	Does a A8-3 the same as a A
Answer:	Product Dimensions: 0.6 x 0.6 x 2.8 inches14 mm diameter and 68 mm long, works good
Question:	Are these all A8-3 engines with igniters included
Answer:	Based on the manufacturer, C6-3 (or C6-5 for that matter) are rated for a max weight of 4oz (113g). Search for "Estes Engine Chart" and you should find more information.
Question:	Description says 24 engines total. 6 of each of 4 different sizes. however, one of the photos shoes it as 24 pcs of one single size. so which is it
Answer:	Estes C6-3 engine pack includes 3 engines sized C6-3, the starters (igniters) and starter plugs in the package. Estes Customer Service.