Recent content by yulzari

Going off on an AH tangent, if the Gipsy Queen development is a guide (and yes I do know I am using post war data) as half of a Gipsy Twelve then the Gipsy Twelve could have ended up at @660bhp with a modest increase in weight. So we are looking at the same power for the airframe as the DC3 but...

I suspect that the DH91 Flamingo was built around the largest engines that De Havilland had in production which limited the gross weight.

Unsubstantiated but I recall being told that many of these used Centaurus engines off Blackburn Beverley's when they came out of service in 1967. 49 were in service so that is 195 engines plus spare engines in store so it freed up over 200 of them at a time when Bristol had ended support for the...

Indeed, and that was exactly what the Marine Nationale was intended to do had France not fallen. The removal of the French fleet from the Mediterranean was a major factor in Italy joining the Axis and the hazard of the Italians getting their hands on it was a major factor in Operation Catapault.

The Mercury is surely a mass too far for the Venom airframe. Not to mention needing more wing area. You need a new airframe to carry it. Not to mention being significantly wider. What we do know is that the Venom came from a large aviation manufacturer. We know what it could do with the best...

The RAF were still using Bristol Hercules into the 1970s. Bristol Freighters were in civilian service into the 1990s.

An extra 150kg is a lot of weight to put right on the front for such small aeroplanes but the power is going to be useful to carry any extra weight. The Gnome-Rhône 14M might be a better swap into the Venom being lighter than the Twin Wasp Junior and ideal for Alvin’s to build under their...

Both have similar small engines yet have period adequate performances in prototype form. https://en.wikipedia.org/wiki/Vickers_Venom https://en.wikipedia.org/wiki/Roussel_R-30 https://en.wikipedia.org/wiki/Gnome-Rh%C3%B4ne_14M https://en.wikipedia.org/wiki/Bristol_Aquila I note that the Roussel...

And American engines would have to have been given back as soon as the war ended under lend lease terms. Leaving engineless airframes….. We saw the Royal Navy throwing literal carrier loads of perfectly good American made almost new aeroplanes into the sea. Rather like the argument that...

For the benefit of those not familiar with the common argot of those who dwell twixt Tamar and Plym: my intention was to purchase a large pasty and accompany it with strong Perry and, for my better half 'She Who Must Be Obeyed', a strong cider. A 'Janner's Handbag' being a local allusion to a...

I was brought up on pecks, chains, apothecary drachms and ells.Not to mention knowing that there are 1,008 farthings to the guinea and my pocket money was half a crown. So am bilingual but speak and dream in metric. But enough of this matter. I am off to treat myself to a large Janner's handbag...

I am one of the 96% of the world who do believe in metric.

You might want to consider how the air war over Britain began with the Battle of Barking Creek. https://en.wikipedia.org/wiki/Battle_of_Barking_Creek

There were sound reasons for sleeve valves when the projects began. However further developments in fuels and poppet valve materials made deep inroads into the differences in the meantime but, when Bristol settled on the sleeve valves, they had still not eradicated the benefits that sleeve...

It has been suggested in earlier threads and much made of the CoG concerns over the far greater weight of the Hercules but it looks to me that, if you can relocate the assorted gubbins behind the engine and before the firewall/forward bulkhead, the the whole engine might be mounted much further...