MiloMorai

In the Me262 book by Radinger and Schick there is a chart (small and hard to read) that averages the speed of many Me262s (maybe the 125 mentioned). The lowest speed is just over 740kph @ 3500m and the highest speed is 880kph @ just under 8km.

Can you explain why consent is needed from the RAF for the Lancaster please? The B-25 flew with the 2TAF so I don't understand why there is no interest except for NIH.

The P-47N saw combat in the Pacific.

A little muscle and a hacksaw. Seriously, looks like a screw in this photo.

It was a very simple job to change from a standard to a clipped or extended wing tip.

So a/c were pulled from operational units to obtain the performance numbers? Never heard of that being done for German a/c.

The Spitfire on its nose doesn't have a pointy rudder!

Why model the perfectly manufactured German a/c when they were actually far from that? USAAF mechs spent hours buffing and polishing a/c.

Or the P-51 can do another type of turn that is not horizontal. Might even come out of the turn with a little more speed.

Only you are saying 'proof'. It is an article on Air To Air Gunnery by a person who actually flew USAF combat missions, something you can't say you have done. I would say his experience in A2A gunnery is something people might learn from.

You are mellowing in your old age. Not even your fire and brimstone posts of yesterdays any more.:) As those bemoaning the lack of night fighters, how many will know how to read a 1940s oscilloscope?

RAF Fighter Command got much of the equation wrong leading up to the Battle of Britain. With complex, choreographed maneuvers (“Fighting Area Attacks”) intended to disrupt enemy bomber formations, early Spitfire and Hurricane pilots found too little time to settle down and shoot accurately. Moreover, RAF doctrine called for 400 yard zeros, too far even for eight .303 Brownings. The dispersion was too great for a killing blow most of the time, and eventually many RAF aces threw out The Book and harmonized their guns at 250 yards or less. http://www.flightjournal.com/blog/2015/07/27/iconic-firepower-guns-of-the-battle/ 400yds is not exactly close. Air To Air Gunnery Revisited – Guns, Gunsights, and Convergence http://www.simhq.com/_air/air_031a.html Andy Bush is Lt. Col. Andy Bush USAF (Ret)

For you A-10 drivers. He flew the A-10 from April 1982 to July 1988. http://www.simhq.com/_air/air_048a.html

A Me410 would be more appropriate.

Orso said the engine was turned over with the starter not hand pulled thru.

The point is you said: "it wont make it a high altitude fighter without the bigger engine" There was no bigger engine, just modifications to the engine. A bigger engine would be the Griffon and then it won't be a Spitfire IX anymore.

All Rolls-Royce Merlins had a displacement of 1650ci. The 61 and 70 used a different blower ratios than the 66. Merlin 66, 5.79:1 & 7.06:1 Merlin 61, 72, 73, 76, 77, 73, 76, 6.39:1 & 8.03:1 Merlin 61 prop reduction ratio, .420:1. Merlin 66 prop reduction ratio, .477:1.

Bigger engine? All Spitfire IXs used the Merlin engine of 1650ci.

Only 200 K-4s out ~1600 produced had Flettner rudder tabs. But, although the taller rudder as well as the Flettners made the 109 a more agile machine, the tall rudders were generally only introduced on the AS engined variants, and the Flettner tabs, – as on Friedrich-Karl Müller’s Bf 109 K here and Specht's G-6/AS below- were only incorporated on a smallish percentage of production - in the case of the Bf 109 K-4 only some 200 were equipped with Flettner rudder tabs .. from jcomm's link These would have been on 1945 production K-4s so not applicable to the DCS K-4.

Never say never: In the Pacific War in mid-1943, American Marine Fighting Squadron 213 harmonised the six .50 inch wing guns of their Mk I Vought F4U Corsairs to converge to a point 300 ft (90 m) ahead. American ace Major Bill Chick of the 317th Fighter Squadron based in North Africa in January 1944 bore-sighted the guns of his Thunderbolt to converge at 300 ft (90 m) because he did not care for deflection shots and instead attacked his targets from the rear at that distance. American Lieutenant Urban "Ben" Drew set the .50 in guns of his North American P-51 Mustang "Detroit Miss" to converge at three points: 600 ft (180 m), 750 ft (230 m) and 900 ft (270 m), with the inboard guns aimed closer and the outboard guns farther away.

Neat little film on British harmonization As can be seen leveling, the a/c is no big deal.

It wasn't only Johnson who changed the harmonization but Colin Gray and Sailor Malan changed the harmonization of their guns and recommended that other pilots do the same. This was done during the BoB, a very hectic time for the Brits, who were real sticklers for following the rules.

The deHavilland Chipmunk was a post WW2 trainer first flying a year after WW2 ended, 22 May 1946. Otrher single engine candidates : Stearman PT-27 KAYDET North American YALE Miles MASTER Fairchild PT-26 CORNELL Focke-Wulf Fw 44 Gotha Go 135 Henschel Hs 125

Every time a gun is changed it would have to be done. The armament techs would have done 100s and 100s of them. One gets pretty good at something if done enough times. Time? Depends on how many techs are involved. In 1944 the 8th FC introduced the concept of A and B Group deployments as the number of aircraft approached 28-30 fighters per squadron. That is almost double the number of operational flying aircraft of 16. In 1945, the typical 8th AF FG had 90+ aircraft and 100 pilots. So lots of spare aircraft.

RESTRICTED AAF MANUAL 200-1 FOREWORD This Manual contains harmonization data supplemental to that issued in technical orders and consolidated simplified aircraft ballistic data extracted from aircraft firing tables. The harmonization patterns were compiled at the proving ground command to facilitate the conduct of service tests on aircraft weapons. The ballistic data was supplied by the Chief of Ordnance, Ballistics Branch. These types of data are combined in a single publication for general use by Army Air Forces officers. Further work by the Proving Ground Command and other field installations will be disseminated in revisions to this Manual. The patterns for harmonization contained herein are indorsed by Army Air Forces but may be amended by each individual station in accordance with local conditions to obtain effective fire power. RESTRICTED AAFMANUAL200-1 INTRODUCTION 1.The Maximum range for harmonization used in this Manual is 2000 feet. Or 666.66 yds. In other words, other harmonization ranges can be used.