The invention relates to a multistage launch vehicle (2) and method of multistage launch vehicle operation in which at least one subsequent motor stage (22a) is ignited following lift-off in partially overlapping relationship with its immediately preceding motor stage (24) prior to shut-down and staging of the preceding motor stage (24) in order to effect positive thrust control over the launch vehicle (20) throughout shut-down and staging of the preceding motor stage (24). Preferably, each of the motors (22a) comprising the subsequently fired motor stage is provided with a thrust profile in which maximum thrust is attained prior to staging of the preceding stage (24).

Overlapping stage burn for multistage launch vehicles

A solid propellant dual pulse rocket motor has a pressure vessel containing two pulse grains separated by a barrier insulator. An igniter assembly disposed at a fore end of the pressure vessel selectively ignites a first pulse grain from a central channel within the grain. The igniter assembly also ignites a second pulse grain by ejecting hot combustion gases onto the fore end of the grain. Using such an ignition arrangement, a dual pulse rocket motor may be constructed using standard off-the-shelf ignition components.

Solid propellant dual pulse rocket motor loaded case and ignition system and method of manufacture

A multi-pulse or multi-stage canister loaded solid propellant rocket motor. The canisters are prepared separately and loaded with solid propellant whereby the scrape rate may be reduced after which they are installed in a monolithic case which affords stiffness continuity over the length of the rocket motor to prevent guidance system upsetting free play. In order to reduce the complexity of installation of the membrane seal assembly for each pulse, the bulkhead therefor is manufactured integral with the case of the respective canister and becomes the forward closure thereof. For the multi-stage rocket motor, the monolithic case may be stepped and tapered, and the stages severable therefrom as they burn out by primer cord.

Solid propellant canister loaded multiple pulsed or staged rocket

A partition arrangement for separating a rear combustion chamber space having a propulsion nozzle leading from the rear end thereof from a forward chamber. The partition includes a partition wall disposed between the forward end of the rear chamber and the rear end of the forward chamber which has a pair of symmetrically arranged flow passages. Sealing plugs are detachably insertable into these passages so as to accommodate sealing of the chambers from one another during operation of the rear chamber as a combustion chamber supplying the nozzle and for permitting flow of pressurized gases from the forward chamber through the hollow passages and the rear chamber when the plugs are removed from the passages. The plugs are mounted so as to be movable from the inserted to the released positions while remaining inside of the rear chamber at positions spaced from the nozzle so as to prevent the plugs tampering nozzle operation. Preferred embodiments of the arrangement for holding the sealing plugs include a centrally disposed trunion on the partition wall which supports the sealing plugs for a predetermined axial movement against a stop collar on the trunion and a subsequent rotational movement of a holding member with attached sealing plugs for moving the plugs out of axial alignment with the passages. A helically coiled spring mounted on the trunnion and the holding member provides the lateral forces for pivoting the plugs laterally. A stop pin is arranged on the partition wall for preventing application of the rotational torque by the spring until after the plugs have moved rearwardly axially out of engagement with the passages. Another preferred embodiment utilizes a slot and pin arrangement at the centrally disposed trunion for guiding movement of the plugs in the axial and lateral directions in a predetermined path in response to the pressure forces in the forward chamber.

Partition for rocket engines

There is disclosed a vehicle and methods for maneuvering the vehicle. The vehicle may include a plurality of multiple-impulse rocket motors, each of which comprises a plurality of independently ignitable solid fuel propellant charges, and a processor that generates at least one command to ignite at least one solid fuel propellant charge of at least one of the plurality of multiple-impulse rocket motors.

Modular divert and attitude control system

Multistage solid fuel rocket propulsion unit for the placing of depth charges

Feststoff-Raketentriebwerk,insbesondere zum Werfen von Wasserbomben

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Cramm Rudolf

Author Tools

Chat about Author

Papers

Multistage solid fuel rocket propulsion unit for the placing of depth charges

Feststoff-Raketentriebwerk,insbesondere zum Werfen von Wasserbomben