It says in The Complete Book of Fighters that the Yak-15, besides the Swedish Saab J21 ( in which case it is obvious ), is the only service piston fighter to be successfully re-engined and become a service jet fighter. I can see some resemblance, but is this true?
Yak 15 is a re-engined Yak-3u. They essentially put a russian built JuMo004(RD-10) into it. There are some differences but quite marginally actually!
Faster, but uglier. I think that pretty much sums it up. But thanks for the reply, and a really interesting photo!
They probably added a few more parts before they sent it down the runway. It should look more like the one below.
Hey if thay can make a fridge 'fly' why not toasters....why are we arguing about the flight properties of kitchen appliances?
Doesn't re-engining things cause a helluva lot of problems. Ie, the reason the B-52 was taken over a reengined B-36 (they converted it to all jet propulsion but the straight wing mucked everything up. Didn't let it get the speed they wanted I think)
Don't know...the YB-60 (the upgraded jet-engined B-36 had swept wings just like the B-52) but i guess the B-52 just had much more potential. http://www.cowtown.net/proweb/my_yb60s.htm
Forgot thye swept the wings when they re-engined it....maybe it was the arifrme itself or something..... Either way, I think the B-52 had more range, speed and had a bigger usuble load for weapons than the B-60.
I think the payload on the YB-60 was bigger beause it's bombays were much larger than the B-52's (B-36 remember)...but overall the B-52 outperformed it on almost everything (only stall speed was lower on the B-60) and the YB-60 was just hard to fly.... Specification of Boeing YB-52 Stratofortress Engines: Eight Pratt & Whitney YJ57-P-3 turbojets, each rated at 8700 lb.s.t. Performance: Maximum speed 611 mph at 20,000 feet, 594 mph at 35,000 feet. Cruising speed 519 mph. Stalling speed 146 mph. Initial climb rate 4550 feet per minute. Combat radius 3545 miles with 10,000 pound bombload. Ferry range 7015 miles. Dimensions: Length 152 feet 8 inches, wingspan 185 feet 0 inches, height 48 feet 3.6 inches, wing area 4000 square feet. Weights: 155,200 pounds empty 405,000 pounds gross. Armanent: Not fitted with any defensive armament. Maximum offensive payload 43,000 pounds. Specification of Convair YB-60 Engines: Eight 8700 lb.s.t. Pratt & Whitney J57-P-3 turbojets. Performance: Maximum speed 508 mph at 39,250 feet. Combat ceiling 44,650 feet. Maximum range 8000 miles. Combat radius 2920 miles with 10,000 pound bomb load. Initial climb rate 1570 feet per minute. An altitude of 30,000 feet could be attained in 28.3 minutes. Ground run 6710 feet, takeoff to clear a 50 feet obstacle 8131 feet. Normal cruising altitude 37,000 feet. Maximum cruising altitude 53,300 feet. Dimensions: wingspan 206 feet 0 inches, length 171 feet 0 inches, height 60 feet 6 inches, wing area 5239 square feet Weights: 153,016 pounds empty, 300,000 pounds gross Armament: Two 20-mm cannon in the extreme tail. Maximum bombload 72,000 pounds. http://home.att.net/~jbaugher2/b52_2.html http://home.att.net/~jbaugher2/b60.html
I'm gonna have to remember to check my sources when I have them on this kind of thing..... B-52 had a smaller wing, but higher gross weight and useful load. B-52 also had a higher stalling speed and was 54mph faster It wasn't the wings I was thinkiong of it was the control surfaces. B-60 needed a lot more force to move 'em becasue they were designed for the slower b-36
