Jumat, 16 Maret 2012

Estes 1948 Big Bertha Flying Model Rocket Kit

Estes 1948 Big Bertha Flying Model Rocket Kit

Product Details

  • Product Dimensions: 6.5 x 2.5 x 23.5 inches
  • Shipping Weight: 1.6 ounces (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B0006NAMUO
  • Item model number: 1948
  • Manufacturer recommended age: 10 years and up
  • Amazon Best Sellers Rank: 4,726 in Toys ; Games (See Top 100 in Toys ; Games)
  • 8 inToys ; Games Hobbies Rockets Model Rockets

By : Estes
Price : $18.25
You Save : $3.74 (17%)
Estes 1948 Big Bertha Flying Model Rocket Kit

Product Description


From the Manufacturer
Big Bertha is an Estes original. Large, burly, black and beautiful perfectly describes this classic. She’s an all about Estes preferred that has really withstood the test of time. Over the decades, Big Bertha has been most modelers’ initial huge develop. Though standing on its massive fins, this large black rocket checks in at an impressive 2' (61 cm) tall. If you’ve never flown a Bertha, get a single and launch it. When you’ve flown it, you’ll take it to just about every launch. The Big Bertha gives you a slow, realistic liftoff. What a thrill it is to watch. Propelled by effective normal Estes engines, this beauty travels to 500' (152 m) and comes back to earth with a decorated 18" (46 cm) parachute. Excellent Estes physique tubes, laser cut balsa fins, molded plastic nose cone and simple to apply self stick decals make for an afternoon of developing enjoyment. In a single afternoon your Bertha is ready for an exciting time at the launch field. Cutting, sanding and painting necessary. Making tools, finishing supplies, engines and launch supplies also essential - sold separately. Suggested for ages ten an up with adult supervision for those beneath 12.
  • An Estes original
  • Laser cut balsa fins
  • Common engine powered
  • Parachute recovery
  • Flies more than 500'

Big Bertha is an Estes original. Big, burly, black and beautiful perfectly describes this classic. She’s an all around Estes favorite that has certainly withstood the test of time. More than the decades, Big Bertha has been most modelers’ first significant construct. Even though standing on its enormous fins, this massive black rocket checks in at an impressive 2' (61 cm) tall. If you’ve never flown a Bertha, get one and launch it. Once you’ve flown it, you’ll take it to every single launch. The Large Bertha gives you a slow, realistic liftoff. What a thrill it is to watch. Propelled by effective typical Estes engines, this beauty travels to 500' (152 m) and comes back to earth with a decorated 18" (46 cm) parachute. Top quality Estes physique tubes, laser cut balsa fins, molded plastic nose cone and straightforward to apply self stick decals make for an afternoon of constructing enjoyment. In 1 afternoon your Bertha is prepared for an exciting time at the launch field. Cutting, sanding and painting needed. Creating tools, finishing supplies, engines and launch supplies also required - sold separately. Recommended for ages 10 an up with adult supervision for those beneath 12.

  • Item Measures: 6.five x 2.five x 23.5

  • Suggested Ages: 10 - 100 years

 

Estes 1948 Big Bertha Flying Model Rocket Kit

 

Product Attributes

  • An Estes original
  • Laser cut balsa fins
  • Common engine powered
  • Parachute recovery
  • Flies over 500'
Estes 1948 Big Bertha Flying Model Rocket Kit

Buyer Reviews


The Estes Major Bertha rocket is one of the most rather simple, however satisfying rockets to build and fly.
First, the style is uncomplicated - very easy to construct, even for the newbie.
Second, the rocket is impressively big. Kids like to launch big rockets, and the Big Bertha fills the bill. Mainly because of its massive size, the Large Bertha has a slower take-off, one particular you can basically see, rather of the "zip and gone" take-offs of the smaller sized rockets. Also, given that of its size, this is a rocket you will not most likely shed. It won't go so high, even with a C6-5 engine, that you will shed sight of it. I have flown some rockets that went so high I lost sight of them and lost them to the wind drift. This will not take place with the Significant Bertha. It is a awesome rocket to launch in a somewhat confined lauch field, as it will not drift that far downfield.
Third, this is a basic rocket to operate, and it is durable and reliable. You can launch it over and more than with consistent overall performance.
Finally, it has a large parachute which is quick to spot in the sky and floats the rocket to earth safely.
I extremely recommened the Major Bertha rocket to all newbie rocketeers. It will provide hours of enjoyable and it a excellent way to find out the fundamentals about model rocketry.
Jim Konedog Koenig

Estes Large Bertha traces its lineage to 1963, and it has evolved more than the years to a non-frustrating afternoon fun in rocketry. It wasn't often that way.
Very first off, Estes has re-developed propulsion to single engine simplicity.
For quite a few years, Large Bertha was cluster-powered it sported 3-engine
power. It needed a "whip", a network of several engine clips for ignition - when issues went perfect.
Cluster power provided a tremendous advantage 3 C.8 engines legitimately yielded extra than 20 nt-sec of impulse. Even the D-series, when it was introduced, was rated at 13.5 nt-sec. A cluster of 3 C.8's price less than a dollar. Those had been the very good old days.
If you were a power-freak, clustered C.8's were the only way to go. Massive Bertha but, pretty much never ever co-operated. First, there is the inherent 15% variation from engine to engine, which affected thrust, duration, and delay train. Then, that whip colluded to stimy simultaneous engine ignition. Even the ignitors were several back then, plain nichrome and not the squib.
Lift-off regularly involved only a single or if you were lucky, twin-engine power. Significant Bertha would veer wildly off the pad. The older version of BB freqently had a payload compartment. Heaven aid you if there had been reside animals on board. Significant Bertha also exhibited one other advantage - it could bounce back from prangs with minimal damage.
Even so, there had been uncommon occasions when every little thing went perfect, and BB was a point of beauty. It was worth the trouble.
I appreciate this opportunity to walk down memory lane. Significant Bertha is nevertheless hassle-free to build, and is readily customizable at little additional expense, to two-stage configuration, payload compartments, even single-engine D or E power, whatever. Retain the fin size as specified, though. It is primed for terrific entertaining and the basis of new memories, but new rocketeers have no idea what they've missed.

 

Estes 1948 Big Bertha Flying Model Rocket Kit

 

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