B-47 Bomber




 
 
 

YouTube - B-47 Stratojet

Specifications

Primary Function:
Crew:
Engines:
Thrust:
Length:
Wingspan:
Weight Empty:
Max. Weight:
Cannons:
Ordnance:
Cruise Speed:
Max. Speed:
Initial Climb:
Ceiling:
Range:
First Flight:
Year Deployed:
bomber
three
GE J47
6 x 7,200 lbs. ea.
109 ft. 10 in.
116 ft.
80,760 lbs.
198,180 lbs.
2 x .20 mm
20,000 lbs.
550 mph
605 mph
4,350 fpm
40,500 feet
3,600 miles
12/17/47
1952

 




 

B47-Stratojet

B-47 Bomber

The 116 foot wingspan B-47 Bomber, called Stratojet and produced by Boeing, had a maximum weight and an ordnance capacity greater than most WW II heavy bombers. It was the first swept wing bomber to be deployed by the U.S.A.F.

The B-47 Bomber had jet fighter speed and maneuverability. It needed six jet engines for sufficient power, and even that had to be supplemented with Rocket Assisted Take-Off (RATO) from 18 booster rockets for heavy payloads.

The first B-47 Bomber aircraft did not have in-air refueling capability. This meant that they had to be deployed from basis within round trip range of the Soviet Union in order to act as a nuclear deterrent. Once in-flight refueling was adapted, missions as long as 36 hours long were flown to demonstrate the effectiveness of the aircraft.

Although the B-47 Bomber was intended for high altitude missions, the development of surface to air missiles by the Soviet Union altered that mission. It required the strengthening of its air frame in order to perform missions below Soviet radar detection levels. Another version of the aircraft was a dedicated reconnaissance plane.

When maximum deployment of the B-47 Bomber was achieved, over 1,300 of the aircraft served with 28 Strategic Air Command wings.

A total of 2,039 Boeing B-47 Bomber aircraft of all types were produced.

B47-Stratojet

B-47 Bomber - model D

The B-47 Bomber model D was the world's fastest combined jet and propeller powered aircraft with a top speed of 598 mph.

On Aug. 26, 1955 the first of two modified aircraft took to the skies to test the theory that an aircraft could have the acceleration of a propeller driven plane with the top speed of a jet. The aircraft had their inboard jet engines replaced with 9,710 hp turboprops driving huge 15 ft. diameter, 2 ft. wide propellers.

Tests found excellent performance and few problems. However, more modern jet engines were able to have quicker acceleration, and a combined jet and turboprop powered  B-47 Bomber for the USAF was never developed for deployment.

The B-47 Bomber looks good and appears to have the proportions to make a good flying airplane. One with propellers and jets would make an interesting project. Imagine how it would sound with turbojets and engines turning propellers?

B47-Stratojet

B-47 Bomber

Pictured above is Mike Potter and his great looking B-47 Bomber. We want to thank Robert Hill for sending the pictures to us.

The AMA has plans for a control line model B-47 Bomber. It has a 46" wingspan.

Model Aviation News also has plans for the B-47 Bomber. It has a 54" wingspan and a length of 43".

Capt. Midnight at WattFlyer started a construction thread about his B-47 Bomber with a 87" wingspan and a 80" length. Power comes from HETRC 6904 EDF units.

GGRW at WattFlyer is building a B-47 Stratojet with a 90 1/2" wingspan that is 79" long. It will be driven by Feigao motors and GWS fans.




3 thoughts on “B-47 Bomber”

  1. Robert Stoneberg (bbhs31@gmail.com) says:

    I have begun a B-47 Bomber project in that I have built some test models, glide, CG, etc. The final larger airplane still has to be drawn up. The idea is to build an electric powered RB version with all the humps, bumps, and other electronic appendages per the full size, with a scale of about 1″=2 ft. This works out to a W.S. of near 60″ and a fuse. a bit less. I plan to use thick (2″) foam, laminated, & strengthened with carbon fiber, in the fuse. The wings may have to be standard balsa construction with a non-scale airfoil shape, perhaps a thin Clark -Y. My little B-47 Bomber gliders seem to like a 20 degree wing sweep rather than the scale 35 degrees. Slower landings. Probably skidded in on its belly/ALD-4 pod config. might be best. The scale LG may prove to be too much, which I think is why few have built this bird as a model. The full scale B-47 Bomber was a real “beast” to set down smoothly until the pilot skill level improved. I know, for sure about that! Powering the airplane — I think I’d like to use a quality E. brushless. Maybe AXI from Hobby Express. Now here is the biggest diff: The motor would be set into the nose with a folding prop and a scaled nose spinner. The 6 jet engines would all be scaled dummies, and made to come off easily w/o tearing the wing off. I’d need a bit of non-scale dihedral to help keep the ground clearance, also. RTF weight I estimate is near 5 lbs. As you can see, this B-47 Bomber is not for sissies, but a fun challenge.

  2. Ed Clayman says:

    My B-47 Bomber design has a 137.5″ wingspan. The initial scale of these projects was just over 11.00% resulting in just over 121″ but grew to 137.5″ @ 10.2% of the full size B-47 Bomber model E IV when initial workup was finished. I am the designer/builder and Sam Collins is my partner in this crime. My aircraft is the most aggressive version of the B-47 Bomber. This being a replica of one which practice bombed my hometown in the mid 1950’s. I arrived home from school, grabbed a peanut butter sandwich then about 4:00 pm sat on my front doorstep waiting for an afternoon bombing run of my hometown by the USAF as it practiced low altitude attacks of the then Eastman Kodak Holston Ordnance Complex’s Area A and B, as I sat watching from my ring side seat, so to speak.
    The B-47 Bomber performed a LABS (low altitude bombing system) maneuver. My hometown (Kingsport, TN) is located at the southern most end of the Shenandoah Valley. The USAF practice bombed industrial complexes along the length of the 500 plus mile long valley floor. Missions began nearly a thousand miles away, off the coast of Maine. Sam’s “weather bomber” replica of the B-47 Bomber was utilized to gather nuclear bomb fallout samples from Russian’s nuclear bomb testing in the Siberian test ranges just beneath the Arctic Circle, above China. This location was to more or less permit fallout to drift East over the Arctic Sea instead of over China. The remoteness afforded the USAF an ability to get in between mountain ranges above and East of the test sites with minimum exposure to Russian air defenses.
    That’s the long and the short of our 10.2% B-47 Bomber projects.

  3. I just saw this site on the internet and want to congratulate all of the various projects on this magnificent B-47 Bomber. I would be very interested joining up with anyone with interest on a large B-47 Stratojet project. I do a lot of scale detailing of RC and other aircraft, spacecraft and missiles. Most of my serious works are in museums around the country. I have a company with a website:
    precisionaerospacereplicas.com.
    Let me know if anyone is interested in me joining the team and challenge of building a one-of-a-kind masterpiece B-47 Bomber. I think I could offer some help that would really make it stand out as an extraordinary RC plane never before done.

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