I've managed to derail another thread, so here it goes here - on alternate tank-busting and other aircraft.
You will note that NS 37 cannon was not proposed for Bf 109, the MK 101 was.
Lagg-3-37 was at 2832 kg empty, 3363 kg ready for take off (per Khazanov & Yefimov book on Soviet fighters, the tables from that book are floating on the 'net). 'Usual' Lagg-3 were at ~3300 kg ready for take off (bar a few lightened examples), so the weight increase due to change in armament was negligible.
The Bf 109F1/F2 were at 2248 kg empty, 2728 kg ready for take off (no racks, no bomb/drop tank; Kennblatt ). Suplanting HS 12Y (late marque) vs. DB 601N decreaces weight by ~120 kg just on bare engine. Change from MG 151/15 to MK 101 (bare cannons 42 vs. 139 kg) adds almost 90 kg. Net result - weight drop by 30 kg. Not much, but no increase.
In 1941, there is no VK-105PF engine, but M-105P. Apart from change in nomenclature, the PF engine was heavier and alloved for greater boost - hence the 1260 HP power figure, unlike the 1000-1100 HP for the M-105P.
Lagg-3 is draggier than 109F (10% bigger wing, thicker both in relative and absolute terms) and 20% heavier.
How good was the Bf 109F on 1000 PS? With actually 1020 PS (= DB 601N on 30 min power), it was doing 495 km/h on deck, with 1050 PS it was good for 595 km/h at 5 km. Granted, no HS 12Y of 1940/41 will provide 1050 PS at 5 km. The Yak 1 was thereabout at sea level, the Lagg-3 was at ~475 km/h at SL.
In terms of layout maybe, but the structure could not handle it:
https://wiki.warthunder.com/index.php?title=LaGG-3-34
You will note that NS 37 cannon was not proposed for Bf 109, the MK 101 was.
That was with an engine that was 1260 hp, not 1000hp of the 100 octane HS 12Y suggested.
https://en.wikipedia.org/wiki/Lavoc...ations_LaGG-3_.28data_for_LaGG-3_series_66.29
The HS 12Y would have sub-1000hp without 100 octane fuel, so at least 300hp or more weaker than the Soviet engine, which was already under powered for the LaGG 3 with the cannon.
https://en.wikipedia.org/wiki/Lavoc...ations_LaGG-3_.28data_for_LaGG-3_series_66.29
Lagg-3-37 was at 2832 kg empty, 3363 kg ready for take off (per Khazanov & Yefimov book on Soviet fighters, the tables from that book are floating on the 'net). 'Usual' Lagg-3 were at ~3300 kg ready for take off (bar a few lightened examples), so the weight increase due to change in armament was negligible.
The Bf 109F1/F2 were at 2248 kg empty, 2728 kg ready for take off (no racks, no bomb/drop tank; Kennblatt ). Suplanting HS 12Y (late marque) vs. DB 601N decreaces weight by ~120 kg just on bare engine. Change from MG 151/15 to MK 101 (bare cannons 42 vs. 139 kg) adds almost 90 kg. Net result - weight drop by 30 kg. Not much, but no increase.
In 1941, there is no VK-105PF engine, but M-105P. Apart from change in nomenclature, the PF engine was heavier and alloved for greater boost - hence the 1260 HP power figure, unlike the 1000-1100 HP for the M-105P.
Lagg-3 is draggier than 109F (10% bigger wing, thicker both in relative and absolute terms) and 20% heavier.
How good was the Bf 109F on 1000 PS? With actually 1020 PS (= DB 601N on 30 min power), it was doing 495 km/h on deck, with 1050 PS it was good for 595 km/h at 5 km. Granted, no HS 12Y of 1940/41 will provide 1050 PS at 5 km. The Yak 1 was thereabout at sea level, the Lagg-3 was at ~475 km/h at SL.