Mark Pritchard

"Not a mention of the first Jet fighter to see combat sevice in WW2 the Me 262 In my opinion a far more advanced design than the Meteor Aircraft such as the Vampire, Hunter, Mig 15 and Sabre incorporated a lot of design features pioneered by the Me262. The programme is very biased towards us Brits. I suppose we need to remember when Britian was a World leader in the world of aviation ." Kelly, maybe the ME262 was the first jet fighter but surely the intro gave away what the show was about "How the invention of the jet engine transformed Britain after the Second World War and came to capture the imagination of a generation and define how the Cold War was fought"

Gentlemen, The Pichler Hi-speed standard setup will not do the published speed. I plan to try some different props to try and make it go faster. I have heard mention of a 4S setup but do not know the full spec. Going away from the hotliner, what about the Pogo, it has speed, is easy to see due to its size and the recommended setup gives plenty of speed, but be ready on the rudder for take-offs and do greaser landings otherwise you just bounce and bounce. One thing it does very well is fly like its on rails and I had no problems pulling G's. Mark

Found this using a well known search engine. Use a similar heading to find other info. Hope this helps How To Convert the Size of a Two-Blade Prop to a Three-Blade or Four-Blade Equivalent By Paul Geders Normally, you go down 1 inch in diameter and keep the same pitch. For example: you have a 2-blade, 10 X 6 prop, and you would go to a 9 X 6, 3-blade to achieve almost the same performance. There is a very complicated formula for determining the load factor of a propeller. In it's most simplistic form, for a 2-bladed prop, the load that a prop places on a motor is equal to the diameter cubed, times the pitch, or D x D x D x P. For a 2 bladed 10x6 prop, the load factor would be 10 x 10 x 10 x 6 or 6,000. For a 12x8 prop it would be 12 x 12 x 12 x 8 or 13,824. The more complete formula, which takes the number of prop blades into account is D x D x D x P x Square root (N-1), where N = the number of prop blades. For a 2 bladed prop, the square root of 2-1 is the square root of 1 which is 1, so the term just drops out of the equation. For a 3-bladed prop, the correction factor is the square root of 3-1 or the square root of 2, which is 1.414. For a 4 bladed prop, the correction factor is the square root of 3, which is equal to 1.732 So if you have a 3-bladed 9x7 prop, then the load factor is 9 x 9 x 9 x 7 x 1.414, which is 7,216, and this would be roughly equivalent to a 2-bladed 10x7 prop, which has a load factor of 7,000. If you had a 4-bladed 12x7 prop, then the load factor would be 12 x 12 x 12 x 7 x 1.732 or 20,950 This would be roughly equivalent to a 2-bladed 14x8 prop, which has a load factor of 21,952. In the end, if the load factor of 2 props is the same, you will get similar RPMs from the two props, and similar performance.

The things Mr O Leary does for publicity....you have more than one item sir, that will cost you extra!!!

That will do nicely

Lets be optimistic and hope to be drawn

Try their website. **LINK**

David, Nice videos, but please read up on "V" speeds. The A380 was actually undergoing Vmu (Velocity Minimum Unstick) tests which is to confirm the minimum speed at which the aircraft can take off, hence the temporary tail skid (painted red) to avoid damaging the tail. Rgds, Mark  @import url(http://www.modelflying.co.uk/CuteEditor_Files/Style/SyntaxHighlighter.css);@import url(/CuteEditor_Files/public_forums.css);

Try try again

This months the one.  Mark

live in hope

First time lucky.  Mark