Recent content by unix_nerd

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Happy new year all! Just scanned that one.... My apologies when post is redundant.

Hallo all, Yes, I agree. After a prop strike or wheels up landing with broken blades an indeep engine inspection is needed. Bf109 were fitted with metall and wood props. So far I remember later versions had wooden blades as well. I 've seen on in am museum - these were really thick and wide for...

Hallo all, Yes, I agree. After a prop strike or wheels up landing with broken blades an indeep engine inspection is needed. Bf019 were fitted with metall and wood props. The Spitfire used wood blades as well - a modified wood called "Jablo" (?) And yes only the blades were made of wood -...

Hallo all, Yes, I agree. After a prop strike or wheels up landing with broken blades an indeep engine inspection is needed. Bf019 were fitted with metall and wood props. The Spitfire used wood blades as well - a modified wood called "Jablo" (?) And yes only the blades were made of wood - not...

Hallo all, Thats an interessting discussion going on here. With a more in deep engineering background I would like to add the following thoughts: The shape of the power curve is ( in my understanding) given by the designer - which of tries to meet the demands of the customer. So if the customer...

Hallo all, I have got some thoughts to add here: the best efficiency in terms of thrust per horsepower you've got with few as possible blades - the best is a single bladed prop. I know this sounds strange but there are some NACA test done on this one. Each additional blade will reduce...

Hallo! I suggest the use of javaprop to get the data :)! JavaProp I did a little calculation with the following settings Diameter 3,40m (correct value) Sipnnerdiameter 0,45m (estimated) Power 1214000W RPM 3000 Airfoil ClarkY Re500000 for the two outer section Airfoil ClarkY...

chemical dispenser or smoke generator might be right - but then there hasd to be a tank for chemicals or smoke stuff... I can't see anyone. :oops: This is an Emil series 109. :idea: Maybe for towing something - a target tug or for towing a glider. The hole thing is attached at the bomb...

I 've read so too. I guess the point was that the old polikarpow Po-2 biplanes are made mostly of rag and wood. :) This gives you a dramatic low radar cross section compared to metal planes. Only the (metallic) parts like engine or wires / guns / gold theeths would reflect radio energy...

Hallo all; Actually I a witness of a (mock) dogfight biplane against jetfighter(s) – here is the story: I remember very well the week or two after Mathias Rust has landed on the Red Square in Moscow. I was on the way to school here in than East Germany. There was a single AN-2 cruising...

In my opinion the Mig-21F-13 was a quit good 50’s fighter. Fast agile good climb cannon and rocket armed. Less radar, but with radar range finder coupled to gyro gun sight. Pilots how flow it called it “sports car”. Even ten years later in Vietnam a challenging dogfighter…..

Hallo all, you might be interested in this: eBay Motors: Pratt whittney 4360 wasp (item 120393557176 end time Mar-27-09 13:33:30 PDT) Item number: 120393557176 its not for flying (paper work is missing) but sounds like its running. I wonder what's the final price. best regrads

Hallo, I would think that the materials needed for the turbines needed some time to be developed. As you might know the gas turbine was at the end of WW2 a new development. In addition the all turbo charges needed high octane fuel to develop their full potential. This was also only...