Ba 349 file photo [5983]

Ba 349 Natter

CountryGermany
ManufacturerBachem
Primary RolePrototype Aircraft
Maiden Flight1 March 1945

Contributor:

ww2dbaseBy 1944, Germany had already embarked on the research of surface-to-air missiles to intercept Allied bombers that had become a major threat. At this point, an effect guidance system had not yet been created, thus there was a school of thought that perhaps a manned missile would remedy the accuracy problems by introducing human control for the critical final stage of the rocket flight. Engineer Erich Bachem began working on his BP20 manned rocket aircraft design toward this goal, which called for aircraft built with wooden parts that were glued and screwed together, with armored cockpits. They were to be controlled from the ground via radio signals, with the pilots taking over only near the end of the flight as the rockets approached the targeted bombers. The pilots would then trigger the firing of either 33 R4M or 24 Hs 217 rockets at the hostile bombers. The aircraft themselves could also be used to ram Allied bombers to cause further damage. Whether ramming was done or not, the pilots would eject from the rocket and return to the ground via parachutes. Bachem's innovative approach failed to persuade German Air Force, Luftwaffe, leadership, but he was clever enough to circumvent the usual steps by going directly to Heinrich Himmler, who lobbied for Bachem to continue his work; if successful, Himmler thought this would bring prestige to his SS organization, and such success could be used against his political rival Hermann Göring.

ww2dbaseNow effectively working for the SS, Bachem simplified the design by removing the ramming option. The new designed called for each aircraft to be launched vertically with the aid of four solid fuel booster rockets, then further propelled by the main engine. After the attack took place, the design allowed the aircraft to glide down to about 3,000 meters in altitude, break up into two pieces (one containing the cockpit with pilot and the other the engine), with each piece landing on the ground via separate parachutes.

ww2dbaseOn 3 Nov 1944, test pilot Erich Klöckner manned the prototype BP20 M1 for a successful gliding test at Neuburg an der Donau, Germany. In the next two months, several unmanned tests were done to improve flight characteristics. One of the conclusions was that it was nearly impossible to save any additional parts beyond the engines and the cockpits, as the speed in which the aircraft traveled was simply too high.

ww2dbaseWhile the testing was still going on, preparations for production already began. The design was named Ba 349 Natter ("Colubridae", a family of snakes). Although on 14 Feb 1945 test pilot Hans ZĂŒbert conducted yet another successful gliding test, Himmler demanded a manned launch by rocketry to take place in the following month. Despite not being ready, Bachem complied. On 1 Mar 1945, test pilot Lothar Sieber climbed aboard the prototype rocket interceptor Ba 349A M23 at the Lager Heuberg military training area near Stetten am kalten Markt in southern Germany. The result was disastrous. With one of the boosters failing to release, the aircraft became out of control, and Sieber was killed when the aircraft crashed into the ground 5 miles from the launch site after only 50 seconds of flight time; as the canopy was observed to have come loose, another theory was that the act of canopy snapping open might have broken Sieber's neck before crash. Later, another manned test also resulted in a crash.

ww2dbaseThe program never reached a satisfactory status to move into full production. At the end of the European War, ten of them were destroyed by retreating German personnel, four were captured by Americans, one was captured by the British, and one was captured by the Soviets.

ww2dbaseSources:
Robert Dorr, Fighting Hitler's Jets
Wikipedia

Last Major Revision: May 2008

Ba 349 Natter Timeline

3 Nov 1944 Test pilot Erich Klöckner manned the prototype BP20 M1 for a successful gliding test at Neuburg an der Donau, Germany.
14 Feb 1945 Ba 349 prototype aircraft M8 flew as a glider with Hans ZĂŒbert in the cockpit.
23 Feb 1945 Ba 349 prototype aircraft conducted its first unmanned vertical launch with rocket power.
1 Mar 1945 Test pilot Lothar Sieber became the first pilot to launch a Ba 349 aircraft. The aircraft was launched from the Lager Heuberg base near Stetten am kalten Markt, Germany. After 50 seconds of flight, the aircraft crashed about 5 miles from the launch site, killing Sieber. The cause was either one of four booster rockets failing to function, or a loose canopy that might have fatally injured Sieber.

SPECIFICATIONS

B
MachineryOne Walter HWK 509A liquid fuel rocket engine, four Schmidding 109-533 solid fuel booster rockets
Armament24x73mm Hs 217 Föhn rockets or 33x55mm R4M rockets
Crew1
Span3.60 m
Length6.02 m
Wing Area4.80 m²
Weight, Empty800 kg
Weight, Loaded2,232 kg
Speed, Maximum1,000 km/h
Service Ceiling14,000 m

Photographs

BP20 or Ba 349 Natter rocket interceptor at rest, circa late 1944; seen in bulletin Ba 349 Natter rocket interceptor being launched, circa early 1945; seen in bulletin Ba 349 Natter rocket interceptor being prepared for launch, circa early 1945; seen in bulletin Ba 349 Natter rocket interceptor on display at Farnborough, England, UK, 1946




Did you enjoy this article or find this article helpful? If so, please consider supporting us on Patreon. Even $1 per month will go a long way! Thank you.

Share this article with your friends:

 Facebook
 Reddit
 Twitter

Stay updated with WW2DB:

 RSS Feeds




Visitor Submitted Comments

1. Commenter identity confirmed Alan Chanter says:
12 Apr 2019 07:20:32 AM

In all thirty ‘Natters’ were built. Eighteen were used up on unmanned launches, one crashed during glide teats, one crashed on the manned flight, six were burnt to prevent them falling into Allied hands, and the other four were captured by the US Army in Austria.

All visitor submitted comments are opinions of those making the submissions and do not reflect views of WW2DB.

Posting Your Comments on this Topic

Your Name
Your Email
 Your email will not be published
Comment Type
Your Comments
 

Notes:

1. We hope that visitor conversations at WW2DB will be constructive and thought-provoking. Please refrain from using strong language. HTML tags are not allowed. Your IP address will be tracked even if you remain anonymous. WW2DB site administrators reserve the right to moderate, censor, and/or remove any comment. All comment submissions will become the property of WW2DB.

2. For inquiries about military records for members of the World War II armed forces, please see our FAQ.

Search WW2DB
More on Ba 349 Natter
Related Book:
» Fighting Hitler's Jets

Ba 349 Natter Prototype Aircraft Photo Gallery
BP20 or Ba 349 Natter rocket interceptor at rest, circa late 1944; seen in bulletin
See all 4 photographs of Ba 349 Natter Prototype Aircraft


Famous WW2 Quote
"You ask, what is our aim? I can answer in one word. It is victory. Victory at all costs. Victory in spite of all terrors. Victory, however long and hard the road may be, for without victory there is no survival."

Winston Churchill


Support Us

Please consider supporting us on Patreon. Even $1 a month will go a long way. Thank you!

Or, please support us by purchasing some WW2DB merchandise at TeeSpring, Thank you!