What rocket engine does it require?
1795126
It is your choice on what stage engine you want depending on the height allowed on the rocket. I used C-Engines.
1795127
I used a C-6 but fair warning this one is no joke on the altitude. I would recommend a B-4 on it if you want any hope of recovery or just stick to one of the A's.
1795128
it can use a lot of different engines from A8-3 (recommended for the first flight) up to C6-5 or C6-7 (which produce the highest altitude). Other ones are A8-5, B4-4, B6-6
1335777
Yes. One engine per launch. The rocket is reusable, the engines are disposable.
2279638
More advanced Estes rockets have 2 stages. I assume these engines (dual stage) are for launcing those rockets.
2161465
I suggest a 40lb thrust. I use a Coleman air pump with no issues. Good trolling motor battery and charger are also important. As with any trolling motor, don't expect to troll all day or get an extra battery.
1142886
The starters on these kits dont work. You need alternative launch systems to use this kit.
63140
You need to purchase the kit that matches the rocket model. The kit contains the engine pack includes ignitors, plugs and recovery wadding.On the rocket box sometimes it will tell u all of the parts that u need to buy.
160677
You will need to purchase the rocket engines. They are sold in packages of three and come complete with wadding and igniters. Estes recommends B4-2 for the 1st flight of the Amazon (larger rocket) and B4-4, B6-2, C6-3 and C6-5 are also compatible. The Crossfire (smaller rocket) will accept A8-3 (first flight), B4-4, C6-5 and C6-7. You will also need to purchase both plastic model cement and wood glue (white school glue okay) for assembly. Lastly you will need to purchase a small can of spray primer, a small can of white spray paint and a can of clear spray paint (optional) to finish the smaller rocket as it is constructed from paper tube and balsa wood with a plastic nose cone. The larger rocket is mostly plastic, already finished and just requires stickers to be placed after assembly. The only tools required to assemble either rocket are an exacto knife, a small piece of fine sandpaper and scissors. The larger rocket is much easier to assemble and I would recommend tackling that one first. It also accepts many of the same engine sizes as the smaller one so you may get by with purchasing just a couple of sizes. Engines are selected by letter with A being the weakest and D being the most powerful. The first number after the letter type represents how many seconds the "burn" is and the last number represents the delay before deploying the parachute. Choose accordingly and start with the lower powered engines first to properly test your rocket and confirm your launch location is big enough. Trees, wind, houses and fenced in yards with dogs can be potential setbacks. My son and I had to contend with all of these our first launch despite utilizing a local park with six or seven acres of open area. Hope this helps.
1131272
From the Alien Invader Instructions: "Recommended Estes® Engine: A8-3, B4-4 (first flight), B6-4, C6-5"
2080921
Unfortunately, no. I haven't seen any Estes model rocket come bundled with an engine (but if you find one, let me know!)Recommended Engines: 1/2A3-4T (First Flight), A3-4T, A10-3T
511333
The rocket is completely reusable - the only one I have ever lost came down in a 60' Oak tree and was lost that way. The ENGINES and wadding have to be replaced between each flight. You can buy packages of three engines with sufficient igniters and wadding for three flights separately. They can be ordered on Amazon - we usually get ours at Target or Wal-Mart simply for convenience. These are real solid fuel rocket engines - these rockets do not uses pumped pressurized water or air like some other systems for propulsion.
1902951
I am not totally sure - but assume that they want you to see how far a motor will take the rocket before you put a more powerful motor in. The smaller rocket goes high, and if there is any wind, it will drift far from where you launched.
678742
They need any engines that have a 'T' at the end of the engine number. the 'T' means smaller engines. Amazon sells the 1/2A3-4T and the A3-4T. The one with the 1/2 in front does not go nearly as high, so my kids (and myself) enjoy the others better full A3-4T better
1787521
I haven't built this rocket yet (I will someday). It will required some beefing up to the internal structure in order to fly safely without tearing itself apart. It's a good looking kit. Anyone who has been flying for years will appreciate it and will know what to do with it. FYI, I am refering to the Estes 2157 Saturn V.
1055846
I started with the b6-4 and had no problems. My guess is they say to start small so you can get used to the rocket if you have not launched them before. They do have quite a bit of power and might go higher than most people would expect of not familiar with them.
419534
Use a rocket blower such as http://www.amazon.com/Giottos-AA1900-Rocket-Blaster-Large/dp/B00017LSPI/ref=sr_1_1?ie=UTF8&qid=1383363396&sr=8-1&keywords=rocket+blower
106462
All you need is the "engines". I purchased the largest ones. A 4 pack. Don't remember how much I paid for them. But it wasn't much, about $10 I think.
1136764
The D size rocket engine from Estes is my favorite. The C works well too, but the rockets does not go up as far; that's what I use on breezey days so I d't loose my rocket!