- How SpaceX Could Accelerate Spacefaring – An Alternate Method
- How did they improve so massively from the F-4 Phantom II to the F-15 Eagle to the F-22 Raptor?
- Analysis of Tesla Berlin Factory Drone Flythrough
- Why is the F-35 slow?
- Mitigating Coronavirus Economic Effects and Finding New Business Opportunities
- ares i
- Conceptual Design
- global warming
- lunar lander challenge
Category Archives: Launchers
Congratulations to SpaceX who landed the first stage intact. Assuming cost is roughly related to stage mass and engine count, reusing the first stage saves 9/10 of the whole rocket cost. If they can run the stage ten times, that … Continue reading
There’s two fundamental approaches to lower space launch cost: K-strategy: Building sophisticated reusable rockets that can fly quickly again after landing. r-strategy: Instead building simple expendable rockets by the mass as cheaply as possible. Firefly, looks to do just the … Continue reading
A fascinating BOAC (British government airline) advertisement film from the fifties. Tomorrow was not theirs, but that of plastics, the jet engine and the transistor, which made almost all of these jobs obsolete. The British mindset of bringing luxurious services … Continue reading
Well, I thought maybe I could add some content. Everybody’s heard about the British Hotol follower Skylon and its airbreathing SABRE engines. What’s special about them? My understandin’s based on this excellent document from Reaction Engines explaining why the system … Continue reading
In a patent by the famous Barnaby Wainfan. EDIT: corrected the link. This patent was filed in 2006 and granted in 2008.
Well, scaling seems to be my pet issue. I recently wrote something not entirely well reasoned in a comment at Paul Breed’s. (For some reason Chrome complains about blogrolling.com malware there so continue if you’re sure you’re safe.) So let’s … Continue reading
All these people had to get paid. Even when there wasn’t a launch. Well, to be exact: until the money was spent and there weren’t gonna be any more launches, which was a few years from this photo. From the … Continue reading
At the Science and Society picture library. Note the many small independently hinging peroxide/kerosene Gamma chambers, the large but cancelled Larch engine, the washing machine / musical box guidance computer with a rotary drum that has bumps, and many other … Continue reading