Félix I (officially "F-360-BD") was a
Brazilian Army Technical School (today's
Military Institute of Engineering) project led by Lieutenant Colonel Manoel dos Santos Lage which aimed, in 1959, to launch the Flamengo cat into space. But the project was canceled due to pressure from animal advocacy groups, and the launch never took place.
History
Origins
The project, also known as "Operation Meow", with limited financial resources, was part of the graduation class of 1958 of the Army Technical School that aimed to create a
sounding rocket
A sounding rocket or rocketsonde, sometimes called a research rocket or a suborbital rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight. The rockets are often ...
, something unheard of in Brazil at the time. The official name was "Rocket Sonda 360-BD", unrelated to the later .
The rocket had an outer diameter of 400 mm, a length of 4.3 meters, and a total mass of 350 kg with the payload, and it used only a single stage and was propelled by gunpowder, reaching a maximum speed of 1,950 m/s. Lieutenant-Colonel Myearel dos Santos Lage's ultimate goal, head of the Rocket Program and leader of the project, but not shared by the institution, was to develop a satellite launch vehicle. The project also had the collaboration of scientists
Carlos Chagas Filho
Carlos Chagas Filho (September 10, 1910 – February 16, 2000) was a Brazilian physician, biologist and scientist active in the field of neuroscience. He was internationally renowned for his investigations on the neural mechanisms underlying ...
and
César Lattes
Cesare Mansueto Giulio Lattes (11 July 1924 – 8 March 2005), also known as César Lattes, was a Brazilian experimental physicist, one of the discoverers of the pion, a composite subatomic particle made of a quark and an antiquark.
Life
Latte ...
. Carlos Chagas Filho was responsible for the idea of choosing a cat, because he was interested in observing how these animals reacted under laboratory conditions. Most of the material used to build the rocket was obtained from the War Arsenal.
The project, which aimed to test a guided missile costing
Cr$600,000, was nicknamed "Felix I" by the Rio de Janeiro press after they discovered their intention to launch a cat, Flamengo, into space. Originally they planned for the rocket to reach the 300 km mark, but this was abandoned due to difficulties in the calculations. The final decision was that the class of 1958 would develop a rocket that reached an apogee of 120 km and the class of 1950 would work on one that reached 300 km, with the ultimate goal of developing a
Thor-type rocket that would reach orbits greater than 500 km by June 1960.
Initially the rocket was to be launched in 1957, but it was delayed twice and by December 1958 they hoped to launch in early January 1959.
Flight plan
The rocket would be launched from a base in
Cabo Frio
Cabo Frio (, ''Cold Cape'') is a tourist destination located in the state of Rio de Janeiro.
The Brazilian coast runs east from Rio de Janeiro to Cabo Frio where it turns sharply north. North of Cabo Frio is Cabo de São Tomé.
It was named aft ...
. Its accelerometer would be connected to a transmitter at a frequency of 73 Mc/s. César Lattes was responsible for building three transmitters and the instruments aimed at cosmic ray detection; Lieutenant-Colonel Carlos Alberto Braga Coelho built the electronics of the rocket; Carlos Chagas Filho (IBCCF) developed the instruments for monitoring the cat's health; and astronomer Mário Ferreira Dias, from the
Valongo Observatory, developed the calculations related to the flight.
The combustion chamber was built by the Army War Arsenal in company with the students of the Armaments Course, with the carbon steel plate produced by the
Companhia Siderúrgica Nacional
Companhia Siderúrgica Nacional (CSN) is the largest fully integrated steel producer in Brazil and one of the largest in Latin America in terms of crude steel production. . The rocket was painted silver with red stripes in a spiral, to help the visibility of the rocket in flight, as the process would be monitored by the
National Observatory.
The rocket thrust was predicted to be 1,920 kgf with 6G of acceleration, 19.3s of combustion, and a final velocity of 1,960 m/s. The propellant, developed by the Army Technical School, was called "BD 1000C Gunpowder". The rocket would carry a 180-kilogram payload of gunpowder to reach the
ionosphere
The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays ...
.
The
payload fairing
A payload fairing or nose fairing is a nose cone used to protect a launch vehicle, spacecraft payload (air and space craft), payload against the impact of dynamic pressure and aerodynamic heating during launch through an atmosphere. An additiona ...
, with a final mass of 30 kg, would contain an acrylic chamber for the cat, as well as the other instruments for the mission. The chamber, with the return speed estimated at 1,800 m/s, would initially be rescued by two
air braking devices, and would be followed by a 68 kg parachute developed by the Army Air Ground Division Core, open at an altitude of 5,000 meters, all in an automatic way. The cat would have four hours of oxygen and would be placed face up on a nylon mattress. The flight would last 40 minutes, falling into the sea 30 kilometers from the launch pad, off
Angra dos Reis
Angra dos Reis (; Portuguese language, Portuguese for ''cove'' or ''bay of the Kings'') is a List of municipalities in Rio de Janeiro, municipality located in the southern part of the Brazilian state of Rio de Janeiro (state), Rio de Janeiro. Th ...
, and would be rescued by the
Brazilian Navy
The Brazilian Navy () is the navy, naval service branch of the Brazilian Armed Forces, responsible for conducting naval warfare, naval operations.
The navy was involved in War of Independence of Brazil#Naval action, Brazil's war of independence ...
. Rescuing the cat alive was considered the greatest challenge of the project. The rocket stages would be rescued by two parachutes. Finally, the flight date would be analyzed by
César Lattes
Cesare Mansueto Giulio Lattes (11 July 1924 – 8 March 2005), also known as César Lattes, was a Brazilian experimental physicist, one of the discoverers of the pion, a composite subatomic particle made of a quark and an antiquark.
Life
Latte ...
.
If the mission was successful, the future rockets would be made available to the National Nuclear Energy Council and the for scientific research.
Flamengo

Flamengo, popularly known as "Meow", the tomcat of Lieutenant-Colonel Lage's daughters, was one of the twelve candidates for the flight. He was the leading candidate and would only be released if he was in good health on the day of the flight and his presence on the flight was already confirmed in December 1958. But in October 1958, the Diário do Paraná announced that
Carlos Chagas Filho
Carlos Chagas Filho (September 10, 1910 – February 16, 2000) was a Brazilian physician, biologist and scientist active in the field of neuroscience. He was internationally renowned for his investigations on the neural mechanisms underlying ...
would replace the animal with an
amoeba
An amoeba (; less commonly spelled ameba or amœba; : amoebas (less commonly, amebas) or amoebae (amebae) ), often called an amoeboid, is a type of Cell (biology), cell or unicellular organism with the ability to alter its shape, primarily by ...
, arguing that a microscopic animal would be of greater scientific use in the study of cosmic rays. Despite this, Colonel Lage kept the cat in the project and when asked in 1959 about the reason for launching the cat, he replied: "... the recovery of this cat, alive, will be an extraordinary achievement". On 19 December 1958 the cat posed for the media inside the Technical School. If the launch had taken place, it would have been Latin America's first living being in space.
Controversy
Carlos Chagas Filho
Carlos Chagas Filho (September 10, 1910 – February 16, 2000) was a Brazilian physician, biologist and scientist active in the field of neuroscience. He was internationally renowned for his investigations on the neural mechanisms underlying ...
, when the experiment began to gain visibility in the media, renounced any renewed interest in sending a cat on the mission and the possibility of any scientific learning, besides citing that the acrylic capsule would face difficulties with drastic temperature changes.

In addition to the disagreement with Carlos Chagas Filho, the project team received protests from the "North American Feline Society," something that the project manager disregarded, believing in the safety of the vehicle. The also opposed the use of the cat.
Members of the Faculty of Veterinary Medicine and other experts were also skeptical of Flamengo's chances of survival, and Leo Rosen, vice president of SUIPA, also reiterated the group's position against the experiment SUIPA also sent an appeal and a petition, signed by, among others,
Rachel de Queiroz and
Carlos Drummond de Andrade
Carlos Drummond de Andrade () (October 31, 1902 – August 17, 1987) was a Brazilian poet and writer, considered by some as the greatest Brazilian poet of all time.
He has become something of a national cultural symbol in Brazil, where his wi ...
, to the Commander of the Army Technical School and to the Minister of War, General
Teixeira Lott, against launching the cat in the rocket. On the issue of animal experiments, SUIPA only advocated when extremely necessary, and was skeptical of the need for the cat experiment. The Brazilian government received thousands of letters protesting against the experiment, but the Army ignored them. And despite all the protests, including from Europe, the project leader continued with his plans.
In November 1958 it was announced that the launch would be held in secret to "avoid
sensationalism
In journalism and mass media, sensationalism is a type of editorial tactic. Events and topics in news stories are selected and worded to excite the greatest number of readers and viewers. This style of news reporting encourages biased or emoti ...
" and in the same month Colonel João Luís Vieira Maldonado, director of the Meteorology Service, said that the rocket would only carry sounding devices, and no longer the cat. However, in January 1959, Colonel Lage still hoped to make the launch with the cat and in February of the same year they planned to launch in March. However, in May 1959, the launch had not yet occurred and freshmen from the National Engineering School held a parade where, among other things, they criticized and satirized the project. In December 1958 the Army announced that it would test a prototype of the rocket before the official launch.
End of project
In January 1959 the rocket was on display at the Armament Museum of the Army Technical School. By 1961 it was already clear that the launch had not taken place. It was the last rocket project that Colonel Lage participated in and was terminated without flying. Finally, on 18 October 1963, the cat
Félicette
Félicette () was a stray Parisian cat that became the first feline launched into space on 18October 1963 as part of the French space program. She was one of 14 female cats trained for spaceflight. The cats had electrodes implanted into their s ...
made a
suborbital flight as part of the
French space program
The French space program includes both commercial spaceflight, civil and military spaceflight activities. It is the third oldest national space program in the world, after the Soviet space program, Soviet (now Roscosmos, Russian) and Space policy ...
, returned alive, and was sacrificed after two months for an autopsy and study of her brain. Colonel Lage was transferred from the Army Technical School in 1960 and all the equipment related to the rocket was disassembled. Myearel Lage, already a General, born on 4 June 1910, died on 5 August 1977. The Army Technical School was abolished in favor of the
Military Institute of Engineering.
Because of the project, at that time Brazil was considered one of the three countries with space technology, alongside the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
and the
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
. In terms of satellite launch capabilities, years later Brazil developed the unsuccessful
VLS project, terminated in 2016. The country is currently working on the
VLM project.
See also
*
Félicette
Félicette () was a stray Parisian cat that became the first feline launched into space on 18October 1963 as part of the French space program. She was one of 14 female cats trained for spaceflight. The cats had electrodes implanted into their s ...
*
Animals in space
Animals in space originally served to test the survivability of spaceflight, before human spaceflights were attempted. Later, many species were flown to investigate various biological processes and the effects microgravity and space flight m ...
Notes
References
Bibliography
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{{Refend
1958 in Brazil
1958 in spaceflight
Animals in space
Astronomical controversies
Individual cats
Cancelled space missions
Brazilian Army
Space program of Brazil
Sounding rockets of Brazil
Suborbital spaceflight