Bristol Spaceplanes Carries Out Successful Rocket Test

Bristol Spaceplane's HPD engine test in the Mojave.

Bristol Spaceplane's HPD engine test in the Mojave.


Bristol Spaceplanes has carried out a strapdown test firing of the HPD (Hydrogen Peroxide Demonstrator) sounding rocket that will be used to test in flight a development version of the Ascender rocket engine.

The test was entirely successful. The engine is based on UK heritage technology and the production version uses hydrogen peroxide and kerosene as the propellants. The test engine is a development version that uses hydrogen peroxide only. The exhaust products are steam and oxygen, which is why there is no flame. A nose cone and fin will be added before the HPD rocket will be launched.

  • Carlos Barrera

    Douglas Messier contact, sorry but I cant see your email contact and this is the only way I can present my project to you.

    Tip Info / New Technology Submission – Gearturbine – Atypical

    YouTube Video; Atypical New * GEARTURBINE / Retrodynamic

    GEARTURBINE -Atypical Combustion Turbine Engine, -State of the Art, -New Thermodynamic Technology, -With Retrodynamic “Dextrogiro vs Levogiro” Effect, is when the inflow direction moves is against of the circular rotary dynamic, RPM Rotor Move VS Inflow Conduits Way, making in a simple way a very strong concept of power thrust, a unique technical cuality. -Non Waste, parasitic losses form-function engine system for; cooling, lubrication & combustion; -Lubrication & Combustion inside a conduit radial position, out way direction, activated by centrifugal force (centrpetal to in), -Cooling in & out; In by Thermomix flow & Out by air Thermo transference, activated by the dynamic rotary move, -Increase the first compresion by going of reduction of one big circunference fan blades going to, -2two very long distance cautive compression inflow propulsion conduits (like a digestive system) (long interaction) in perfect equilibrium well balanced start were end like a snake bite his own tale, -Inside active rotor with 4 pairs of retrodynamic turbos (complete regeneration power system), -Mechanical direct “Planetary Gear” power thrust like a Ying Yang (very strong torque) (friendly loose friction) 2two small gears in polar position inside a bigger shell gear, wide out the rotor circunference were have much more lever power thrust, lower RPM in a simple way solution for turbines, to make posible for a some new work aplication (land). -3 Stages of inflow turbo compression before the combustion. -3 points united of power thrust; 1- Rocket Flames, 2-Planetary Gear & 3-Exhaust Propulson, all in one system. -Combustion 2two continue circular moving inside rocket Flames, like two dragons trying to bite the tail of the opposite other. -Hybrid flow system diferent kind of aerolasticity thermoplastic inflow propulsion types; single, action & reaction turbines applied in one same system, -Military benefits, No blade erosion by sand & very low heat target profile. -Power thrust by barr (tube); air sea land & generation aplication, -With the unique retrodynamic technical cuality of “dextrogiro vs levogiro” effect is when the inside flow moves against of the rotor moves making a very strong concept, RPM Rotor Move VS Inflow Conduits Way (an a example is like to move the head to the side of the strike ponch) -A pretender of very high % efficient power plant looking to make posible a cheap electrolysis. -Patent; Dic 1991 IMPI Mexico #197187