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Great Britain did exactly that when they ordered the P51. Unproven, no plans, no prototype, just a concept. That worked out pretty good.
Packard ( a car manufacturer) had a re-engineered Merlin running only 11 months after the agreement to produce them was made.
There's no reason a Tu-2 couldn't have been re-drawn, (and no doubt improved) in a timely manner. The west had the resources, the Soviets didn't, so they shelved the project for 15 months. A western manufacturer, or a co-operative east/west venture, could have had it in full production during that window.
Remember, the question is, "coulda/shoulda"; not woulda. We all know the answer to 'woulda'.
My dentist hit a nerve today. But that was not his intention.
Crusing speed of the Tu-2 of 276 mph is pretty much the same as Spitfires during the same time period and higher than most other medium bombers. Ventura crusing speed was only 260, and pilots flew them across the channel, albeit with high losses. Bostons had a crusing speed of 250, and less armament than the Tu-2 and they were quite popular with crews in cross channel operation. Those crews would have traded their Bostons for a Tu-2 that had a top speed of up to 50 mph faster quite willlingly. .
The Blenheim had a turret, and it didn't do it much good. Waist guners in a B17 didn't have turrets, and they did just fine. Turrets are a non issue in a light/medium bomber IMO. .
What plane to replace with the Tu-2? Take your pick. Boston, Blenheim, Hampden, Beufort, Wellington, Whitley (was already done in 1942), Ventura, Manchester( but it was replaced by Lancaster), Marauder and Maryland. It also could have done the Beaufighters job as well or better. .
The Hercules engine on a Tu-2 would have been a good match, increasing it's range (better fuel economy), and depending on the variant, increasing horsepower. .
The other option would be to use resources that were dedicated to any of a number of projects that duplicated other aircraft, such as the B32. Admitedly easier to do in hindsight, but given the option of developing the very practical Tu-2, or pursuing one of the 'fantasy' projects, companies such as Curtiss, Fairchild, Blackburn, Bristol, Martin etc, might have made a more useful contribution to the war effort.
I am not saying the TU-2 wasn't a very,very good bomber, it might have even been the best. What I am saying is that it was too late in timing for the west to get into service in any numbers.
IF the Boston could do "317mph-340mph, depending on variant." how is the TU-2 at 325 to 344mph a whopping 50MPH faster?It wasn't, I listed the speed of the Boston as a correction.
"And you are right, there is a pattern, replace planes that aren't up to snuff with one that is."
Gee, I thought that is what the Western allies were doing?Marylands replaced Blenheims, Baltimores replaced both.Exactly, hence the question, could they or should they have looked at 'eastern' types?
Bostons replaced Blenheims.
Whitleys and Welliingtons were more twin engined heavy bombers and were replaced by 4 engine bombers and so on.
"Brief comparisons:
Faster than B26 or B25
2200 lbs greater bomb load than B26 or A20
Greater range than A20, B26
Higher ceiling that A20, B26 or B25
Better climb rate than B25 or B26"
All true except that the speed was bought at the cost of crappy defensive armament, the fixed forward firing 20mm guns are going to be mighty hard to defend the loaded bomber with.From the figures the TU-2 had just under 4000kg of useful load.The two 20mm guns were used in the interceptor role, and against enemy fighters after dropping the bomb load. They were not defensive armament, they were offensive. Defensive armament was 3 x UBT 12.7 mm heavy machine guns, which Tu-2 crews considered much better than the 2 gun defensive armament of the Pe-2.
so 1500kg of bombs, 2100kg of fuel leaves under 400kg for crew,ammo, oxogen etc.
Now you certainly can trade fuel for bomb load but that does tend to shorten the range.
By the way the early B-26s were rated to carry 2 1600lb armour peircing bombs AND a 2000lb torpedo. 5200lb "bomb" load. Never used and totally useless combination but there is that "book" number.
The TU-2 may very well have been able to cary more bombs further than the B-26 or A-20. the question is weither it could carry ENOUGH more bombs ENOUGH further to make it worth while to start production. Some sources state the INternal Load of the TU-2 was 1500kg. so any heavier load is going outside where the extra drag might cut into range more than simply trading fuel for bomb weight.
By the way, the idea that the TU-2 could do the Beaufighters job was a good joke. If you think that TU-2 would have been good nightfighter in late 1940 itmeans you have a time machine in yourTU-2s.Every source I have seen shows 1000 kg internal, 2000 kg external, with a few sources showing 3000 kg external, which should only apply to post war variants. It might be convenient for purposes of discussion/debate to subtract "loaded weight' figures from 'empty weight' figures, but the best sources on Soviet planes state clearly, 1000 kg internal BOMB LOAD, etc.
You might also ask yourself how the TU-2 would perform caring the guns and ammo the Beaufighter did.
No joke. The Beaufighter did a lot more than just night fighter duties in 1940. I have an aquantance (Dallas Schmidt) who flew them in Malta and then Northern Europe in 1944 on anti-shipping duties. It's one of my favorite planes, but it was a bit slow, and as Dallas said, it was barely above stall speed with one engine out. Tu-2 had room for more guns in the nose, could carry rockets, or 2 torpedos,(Beau caried one) and do it 24 mph faster. Two less crew if the plane isn't being used as a bomber, no defensive guns needed (Beau had none), so those 3 guns and ammo are replaced by forward firing ones. It's definately capable of doing the Beaufighters job from 1943 on. The Beau has the edge in range though.
North American designed and had a prototype P51 flying in 178 days
Claide
closer to 117 days if I recall
Ah yesTo be more accurate, rollout in 117 days, first flight in 178 days
Since one source says a Beaufighter could do 308mph with a torpedo, that cuts the TU-2 advantage to 7mph not 24mph with 2 torpedos that you claimed. Tu-2 is better but is it by enough to change over the production line?Shortround:
315 mph for the Tu-2 with one torpedo is only 5 mph slower than the Beaufighters top speed 'clean'. .
Turrets are all well and good, but even the big 4 engine bombers couldn't defend themselves without fighter escort. Can't expect a B26 or a Tu-2 to do it if the B17 and B24 can't. Soviet doctrine called for close escort (usually Yaks), top cover, and/or a fighter sweep ahead (usually La5 or P-39) .
I don't see why a western producer would need to duplicate the flight testing already done by TSAGI, or the combat evaluation done on the Kalinin Front in 1942. In Canada we produced Hurricanes, Mosquitos, Lancasters and Blenheim IVs (we called them Bolingbrokes), and we didn't have to go through exhaustive flight tests to determine if they could fly! We just got the plans, tooled up, and started building the darn things. Instead of 600 or so Blenheim IVs, we could just as easily have built 600 Tu-2s. And if the west didn't want to use them, I'll bet the Soviets would have welcomed the extra production.
BTW, it'd be a slmple thing to correct the CG of a Tu-2 that gets a few hundred kgs of guns and ammo up front, particularly as it is designed to carry a bomb load in excess of 10 times that amount in bombs. They did it in the Beaufighter, which was after all basically a Beufort with a skinny fuselage. The Pe-3 did it as well, and it's a lot lighter than a Tu-2,(and slower).
As far as relying on speed for surviving bombing missions, the Mosquito did it. But the Tu-2 would not have been quite fast enough to pull that one off. So no replacing Mosquitos with Tu-2s. sigh.
Shoutround:
The Bolingbroke 1 was produced in Britain in 1939. The Canadian Bolingbroke was actually a Blenheim Mk IV and was produced 'late war' by Fairchild in Quebec. No tiresome time machine there.
Shoutround:
The Bolingbroke 1 was produced in Britain in 1939. The Canadian Bolingbroke was actually a Blenheim Mk IV and was produced 'late war' by Fairchild in Quebec. No tiresome time machine there.