FIFI has lost her title as the world's only flying B-29! If you missed Doc's first flight, here it is!! Recorded live from DPG WICHITA. (www.youtube.com) さらに...
Awesome day in aviation history!!! This piece of history is as old as I am What a Beautiful Takeoff and Landing! Thanks for sharing the video Only wish I was there to share the viewing!!!
Did all B-29s use the R3350 engines with turbo compounding? I just watched a 40 minute "Flight Engineers Training Program" that was top secret in 1944 when filmed and it spoke about turning on and off the turbos. It said it had a "waste gate" problem that was fixed AND the turbos that were being inspected looked like the external variety as found on the B-17s and P-38s, not the enclosed three turbos that were on the amazing turbo compound engines. Did they ever use that type (Lockheed Super Connies and DC-7s used them), and were they put into service later since they were the final iteration of the radial engine? I built an RC version of the '17 and did a lot of research on the turbos and their plumbing.
Thought as much. But makes plane harder to fly/maneuver, especially at low altitudes/speeds. Would've thought they'd want to cycle the gear and test that too, but I guess safer to test while mounted on blocks.
AC 90-89B has a bit of a different audience, but is a pretty thorough introduction to the sorts of considerations you have to take when getting a restored (or newly-built) aircraft into the sky:
Test flights are no small matter, at least when done right. There is (or should be) a very detailed plan, and a sequence of steps building confidence in each part of the system before going onto the next step.
With the gear, it's not just whether it'll go back down after coming up, but also whether the aircraft itself is stable after raising the gear. It's possible that something's out of rig, and raising the gear causes the plane to become uncontrollable. So, one thing at a time.
Hi Mr Carslon: Thank you for your post referring us to an FAA document regarding recommended test flight procedure for ultra-lights. I do have to agree with you, in part - no question...a "test flight" after major maintainence can include leaving the landing gear "down" (unless that wasa the item being serviced). I was NOT aware, however, that the B-29 falls under the "ultra-light" classification.
Of course the B-29 isn't the same category at all. But the issues that document discusses are right on point, and it's a highly accessible document -- meaning that others (including those who aren't A&Ps) can read and understand.
You tell us that leaving the landing gear "down" makes a B-29 'harder to fly.manuver especially at low altitudes/speeds".
I havnt found that to be true on the airplanes I am most familiar with. Can you tell us more ? What airplanes do YOU operate where that IS the case ? Tell us more - when and where did you get your "type rating" on the B-29 ?
As a pilot, it is common sense that any aircraft is harder to fly & maneuver at low altitudes and speeds with anything that increases drag, such as gear down. While it may be negligible (or not) in the B-29, 'tis only a general observation.