warrenmj

While at the museum today, they rolled out one of the two F7F Tigercats and ran up both engines.

tuxnharley

Very cool - thanks for sharing!

Love the counter rotating props to neutralize torque steer, and great to see the wings extend!

firstgear

they do this to keep the fluids moving around and fresh? its pretty cool....when if ever do they fly it?

warrenmj

They mostly sit in the hangers, but they do fly them. This one last flew September ‘17 in our air show. It had an oiling problem with one of the engines that they have been working on. Once they had it resolved, they ran up both engines today to make sure it was fixed. They ran them for about 10 minutes today and ran up the rpms higher than my video shows.

Our P-38 flew to SoCal last week for an air show in Chino and our F4U Corsair flew back east last month for several air shows.

Our next air show isn’t until Sept ‘19, when most of our planes will fly, as well as several visiting aircraft.

Lotsacubes

Just awesome! 36 cylinders coughing and puking oil. Wonderful. Are those Pratt’s or Wright’s? Do you guys walk the props since they sit for a while before cranking? I’m a radial lover. Mine has a 985 Pratt. Too cool.

Larry

warrenmj

Pratt & Whitney engines. And yes, they did walk the props before startup

DansYellow66

Thanks for posting. Still my intent to get out and visit the museum on one of my family visit trips to Colorado Springs sometime. I hear it's a good one.

MarkC

For you guys who are into these vintage planes, check out the Military Aviation Museum in Virginia Beach. Next weekend they are having Warbirds Over the Beach which I am attending. I plan to take lots of pictures which I can post.

Lotsacubes

I happened to be in Denver last weekend with family hiking at the outdoor amphitheater. Heard the chorus of multiple radials overhead. Imagine my joy to look up between enormous, jutting, red boulders and seeing a B17 pass overhead multiple times. Apparently it was giving passenger rides from the historic aircraft museum in Denver. One is an awesome sound but I told my son, “imagine being in Germany and seeing hundreds of those in close formation darkening the skies and that sound multiplied.” Again thanks for the F7 post.

kolsen911

Look at at the video closely again, their not counter rotating, they both turn left vs one left and the other right to cancel torque.

I believe those are R-2800's. Double row. If I remember they only prime a few cylinders and you start holding the primer with the mixture in cutoff. That's why the left engine nearly quit as you advance the mixture and let off on the primer.

I flew a bunch of those old radials for the Evergreen Museum.

For cripes sake Kent enough, go get another cup of coffee.

tuxnharley

????

Well, admittedly I'm no expert on this, but just going by what my 68 year old eyes with corrective glasses think they see in the video -

It sure appears that, looking from the front view, the right side prop rotates clockwise and the left side one rotates counter clockwise....

Maybe it's just my lyin' eyes..............

GTOguy

Thanks for the post. It seems where I am, air shows are a thing of the past, sadly. Have never seen a P-38 fly....would love to, though!

kolsen911

Watch during start when the engine almost quits and you can see. I think the camera does that, could be wrong.

Rob_64-365

That is pretty cool!

ChattanoogaJSB

Duck916

Yes, it's the camera frame-rate syncing up with the prop. They are both definitely rotating in the same direction. As you said, you can tell when the first engine almost stalls out.

Duck916

And thanks to the OP for posting this. It's pretty darn hard to find something cooler than this to watch....

kolsen911

Love those big radial engines at idle. The sound like a big block Chevy or my Hemi.

warrenmj

I believe the engines both turn in the same direction. If you look at this photo, you can see the props are the same. If the engines turned in different directions, the props would be different also.

On the other hand the P-38s engines do turn in opposite directions. You can see in the second photo that it’s props are different.

Pop Chevy

Dang ! Those things look fast. Makes me think of the pod racers in the Star Wars movie . There's just enough metal to hold the engines together.