mackem01 Posted May 13, 2018 Share Posted May 13, 2018 I am just wondering about the airframe differences between the P2-V5 and the P2-V7 versions of Lockheed's ubiquitous Neptune. Can anyone light my way?? T.I.A. Link to comment Share on other sites More sharing options...
Trenton guy Posted May 13, 2018 Share Posted May 13, 2018 Big differences: 1) clear nose replaces forward 20mm.gun turret. 2) canopy profile raised and bulged. 3) ventral radome location moved aft. 4) MAD boom replaces the rear 20mm gun turret 5) jet engines added under wings outboard of.nacelles Some of these P2V-7 features were added to P2V-5’s as production progressed but the -5 never featured the revised RA dome location nor the reprofiled canopy. The dorsal turret featured on both but was later removed from -7’s. 1 Link to comment Share on other sites More sharing options...
huvut76g7gbbui7 Posted May 13, 2018 Share Posted May 13, 2018 Useful link : https://p2vneptune.com/v05.shtml 1 Link to comment Share on other sites More sharing options...
stever219 Posted May 13, 2018 Share Posted May 13, 2018 (edited) P2V-5s were built with a twin-20mm cannon installation in the nose and tail positions, had a low-profile cockpit roof line that followed the line of the fuselage crown, small circular observation blisters below and behind the dorsal turret position and large wingtip tanks. The -7 introduced a clear-view nose, with a small trapezoidal window on either side, and deleted the guns and their turret. The cockpit canopy was blown, the transparency being hinged at the sides and opening along the centre line, giving a bulged profile. The ventral radome was moved forward around 3 feet, the weapons bay being lengthened forwards by thar much. The wingtip tanks were considerably slimmed down and a pair of J-47 gas turbines installed roughly half way from main engine nacelle to wingtip. The rear fuselage observation windows were enlarged and made square. A number of antenna fairings appeared on the lower rear fuselage sides and the tail turret and guns were replaced by a MAD (Magnetic Anomaly Detector) boom. Just to add to the fun some operators, for example the RAF, had many of their -5s modified to varying degrees. The RAF aircraft had the nose and tail turrets removed and replaced with the later “clear view” nose and MAD boom respectively but retained all of their other earlier features and did not acquire the J-47 installation. Edited May 14, 2018 by stever219 1 Link to comment Share on other sites More sharing options...
Graeme H Posted May 13, 2018 Share Posted May 13, 2018 If you are talking about specific differences, the P2V-5 is a bit of a minefield, as the others have said started out with fore and aft turrets, and advanced into a model with a Mad Stinger and clear nose similar to the P2V-7, most external differences between the -5 and the -7 are the cockpit is raised, the under fuselage radome was moved forward on the -7, the wingtip tanks were made slimmer and more streamlined. 1 Link to comment Share on other sites More sharing options...
Nils Posted May 13, 2018 Share Posted May 13, 2018 The Neptune family vas been a favorite of mine for a long time, with it’s exiting career and so many very fifferent types.. It was begging to be modelled. As a 3D modeller I’ve built several types of it and done quite a few scenes’ with it. Also it’s competitor, Martin Mercator has had my attention since I discovered it some time back, with an even more exiting but shorter life, it too has inspired me with it’s sleek and elegant lines.. I’ll post some shots of them, some day later .. 2 Link to comment Share on other sites More sharing options...
Hook Posted May 14, 2018 Share Posted May 14, 2018 19 hours ago, Trenton guy said: Big differences: 1) clear nose replaces forward 20mm.gun turret. Early P2V-7's were built with the turret nose. Also, to add some Dutch flavor: some Dutch examples were fiitted with ex-P2V-3 gun noses. A few of these birds even had air-to-air kills..! Indonesia itself had already gained independance, but the Dutch still held a colony at New Guinea which the Indonesians wanted as well. To prevent Indonesian infiltration by sea and paratroopers, after a stopgap flight of Dakotas the Dutch Koninklijke Marine (Royal Navy) bought the Neptune. As more firepower was needed, the P2V-7B mod was commisioned to Lockheed. This may have been an exclusively Dutch modification. The gun noses came from surplus USN P2V-3s, but I know of no other users of the P2V-7B variant. The Dutch Neptunes were fitted with the gun nose on Lockheeds assembly line. Incidentally, only four guns were fitted instead of the six usualy carried by the P2V-3. These modified Neptunes were called Nepfighters by the Dutch - in addition to the obvious Neptune reference, "nep" having an meaning in Dutch as "bogus, fake". On 17 may 1962, #207/B (B-tailcode for Biak, the base of operations in New Guinea) shot down an Indonesian C-47 which ditched on the water with no casualties. Another Nepfighter exchanged gunfire with an Indonesian B-25, scoring some hits before the Mitchel disappeared in clouds. Further radar contacts were made during the conflct with Indonesian patratroopers-dropping C-130s, but these proved too fast for the Dutch aircraft. Other operations including strafing boats. (Incidentally, the Indonesian C-130 crews picked up and trained for their mounts at the Lockheed facilities at the same time the Dutch took delivery of and trained with the Neptunes. Separation between these two groups was strictly enforced.) Later on, after withdrawing to the Netherlands, all these birds were converted back to standard SP-2H configuration with the standard glass nose by Lockheed for use as ASW planes in European NATO ops. Source: "Op de grens van zee en lucht - dertig jaar Neptune bij de Koninklijke Marine (1982, red. F.C. van Oosten, ISBN 90 228 1868 3) Cheers, Andre Link to comment Share on other sites More sharing options...
Hook Posted May 14, 2018 Share Posted May 14, 2018 Pics of Dutch P2V-7B's: http://onzevloot.weebly.com/uploads/1/4/1/3/14135904/9993651_orig.jpg https://nimh-beeldbank.defensie.nl/memorix/235329f7-9057-e841-6ad6-6fd5442ca16e https://nimh-beeldbank.defensie.nl/memorix/3f1f3b9e-eb5e-054a-82d8-e34b4b186e59 Cheers, Andre Link to comment Share on other sites More sharing options...
mackem01 Posted May 15, 2018 Author Share Posted May 15, 2018 Very long shot here - does anyone have copies of Air Pictorial from August & September of 1972! There's a couple of articles in there and if anyone could scan them to me I'd be really grateful. Link to comment Share on other sites More sharing options...
junglierating Posted May 15, 2018 Share Posted May 15, 2018 6 hours ago, mackem01 said: Very long shot here - does anyone have copies of Air Pictorial from August & September of 1972! There's a couple of articles in there and if anyone could scan them to me I'd be really grateful. £2.50 free pp well known auction site....its not me Link to comment Share on other sites More sharing options...
mackem01 Posted May 18, 2018 Author Share Posted May 18, 2018 (edited) Many thanks junglierating, got those two on order. I have also ordered the Tigger models kit for a long term conversion project after I clear some of the backlog on the bench! To that end does anyone know where I can find any good pics of the cockpit and bomb bay of an AP2-V5??? Leads on some 48th or 72nd plans would be good too......any ideas? Edited May 18, 2018 by mackem01 additional request. Link to comment Share on other sites More sharing options...
mackem01 Posted June 2, 2018 Author Share Posted June 2, 2018 As part of my ongoing bits / info gathering for this project I require a snippet of info that I can't seen to find out for myself and I was wondering if the hive mind could help. The dorsal turret on R.A.F. Neptunes - what type is it and is it done in 48th scale? Also does anyone do a belly radome similar to the one fitted to Neptunes?? Any and all answers very much appreciated..... Link to comment Share on other sites More sharing options...
Tony Whittingham Posted June 8, 2018 Share Posted June 8, 2018 Hello Mackem, the turret is a Martin "high hat". The Monogram B-17 has a one, if you're working in 1/48 scale. Having done a RAF Neptune conversion with the Hasegawa kit, I can also add that the nose wheel well is different on the dash 5. The length decreases with the forward Radome movement on the dash 7. There is a good conversion article in one of the Airfix annuals, the one with the then new Airfix Sabre Dog on the cover. Just to add complexity, some of the dash 5 model acquired the dash 7 tip tanks and aerial fit. the Squadron Neptune in action book has useful pictures. TW Link to comment Share on other sites More sharing options...
mackem01 Posted June 9, 2018 Author Share Posted June 9, 2018 Cheers Tony, that's just the sort of info I need, That's in the notebook! Link to comment Share on other sites More sharing options...
e8n2 Posted June 10, 2018 Share Posted June 10, 2018 On 6/8/2018 at 8:52 AM, Tony Whittingham said: There is a good conversion article in one of the Airfix annuals, the one with the then new Airfix Sabre Dog on the cover. Just to add complexity, some of the dash 5 model acquired the dash 7 tip tanks and aerial fit. the Squadron Neptune in action book has useful pictures. TW I think you may be confused a bit here. I have Airfix Annual 5 with the then new F-86D on the cover. The table of contents does not show any conversion articles for the P2V. There is a conversion article for making a Lancaster Mk VI by Bryan Philpott though. Maybe it was in an Airfix Magazine with the F-86D on the cover and not the Annual? Later, Dave Link to comment Share on other sites More sharing options...
Tony Whittingham Posted June 11, 2018 Share Posted June 11, 2018 (edited) You’re right. I did not have my references to hand. The book in question is “Making Model Aircraft”, by Bryan Philpott. My apologies for the misdirection. The conversion is on page 103-110 TW Edited June 11, 2018 by Tony Whittingham Added page numbers. Link to comment Share on other sites More sharing options...
Tailspin Turtle Posted June 11, 2018 Share Posted June 11, 2018 Some odds and ends here: http://tailhooktopics.blogspot.com/2016/02/early-p2vs.html http://tailhooktopics.blogspot.com/2014/02/hasagawa-p2v-neptune-kit.html One of these days, I plan to do a more comprehensive comparison of the various dash numbers. Link to comment Share on other sites More sharing options...
mackem01 Posted June 13, 2018 Author Share Posted June 13, 2018 Cheers T.T. - those links are right on target, especially the one concerning internal layout. Many thanks.... Link to comment Share on other sites More sharing options...
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