Steve Pace said:Carl Haddon was chief project engineer on the XP-49 program but search as I have using his name and the names Hibbard, Johnson and Hawkins I've yet to find the patent on this aircraft. Has anybody out there discovered the patent on the XP-49? Thanks in advance. -SP
Right - but I was thinking that a patent might have been applied for. If so, I would like to see it. That's all there was to my request. -SPSkyblazer said:Steve Pace said:Carl Haddon was chief project engineer on the XP-49 program but search as I have using his name and the names Hibbard, Johnson and Hawkins I've yet to find the patent on this aircraft. Has anybody out there discovered the patent on the XP-49? Thanks in advance. -SP
What makes you think the XP-49 would have required a separate patent from that of the XP-38? It's not like it was radically different in configuration, design or technology, right?
The XP-58 looked very different indeed. -SPmemaerobilia said:I know the XP-49 was three and a half feet longer than the standard P-38. But that does not help me, if the photo does not show them next to each other? How do you tell a P-38 from an XP-49, from an XP-58 VISUALLY? Are there different cowl openings or other Obvious features? Of course the are so many diffent models of P-38s, which does not help the situation.
As Skyblazer has noted, the company istself, describes the XP-49 as "a modified P-38"with supercharged Continental engines that gave it 230hp more hp than the contemporary Allisons, and the most powerful Lightining. and with pressurized cabin.
memaerobilia said:How do you tell a P-38 from an XP-49, from an XP-58 VISUALLY?
If you compare a a view of the P-38 with the P-49 drawings in this thread, the P-49's canopy lines, the rake of the nacelle chin intakes, the length of the tail boom,s and the larger radiator ducts on the booms are all fairly distinctive.memaerobilia said:I know the XP-49 was three and a half feet longer than the standard P-38. But that does not help me, if the photo does not show them next to each other? How do you tell a P-38 from an XP-49, from an XP-58 VISUALLY? Are there different cowl openings or other Obvious features? Of course the are so many diffent models of P-38s, which does not help the situation.
As Skyblazer has noted, the company istself, describes the XP-49 as "a modified P-38"with supercharged Continental engines that gave it 230hp more hp than the contemporary Allisons, and the most powerful Lightining. and with pressurized cabin.
memaerobilia said:I know the XP-49 was three and a half feet longer than the standard P-38. But that does not help me, if the photo does not show them next to each other?
Steve Pace said:It appears to me that it's vertical stabilizers/rudders are shaped different as well. -SP
Apteryx said:I'd venture to say the P-49's fin/rudder was a P-38 unit with a parallel-section spacer, maybe ten inches high, inserted right above the boom. A quick way to increase area without a redesign.