1/72 JT3D

Flightpath makes nice resin engines, but they’re designed for the AWACS so the front of the pylon at the turbocompressor is a bit different. I’m uncertain if there are any other big visible differences. Perhaps somebody else knows. Flightpath also makes nice photo etch window frames for the 1/72 707, if you are looking to avoid decal windows.

Cheers,

Mike M.

Edit your Profile to get a forum signature.

If you’re trying to do a 123B, you’ll need to add length before and after the WBF, so you’ve got two options:

1. Cut the WBF out and add a single plug in the remaining fuselage that adds 6 frames’ worth of length, then glue the WBF back on.
2. Make two cuts: one ahead of the WBF, one after, and then add +4 frames ahead and +2 frames aft.

If I had to do it, I’d go with option 2, and then stagger the cuts left and right so that I can use the other half to hold the bits in place (Mathiemca method). The cargo deck will now be the wrong length, so I’d recommend either stretching it or cutting it into three bits and leaving gaps.

Regarding the engines, I’m pretty sure the pylons are different between the JT3C, JT3D, and AWACS TF33, so I’d try to source one of the kits that has the KC-135E engines to use. The Flightpath ones are definitely wrong for the passenger liner, they’d need pretty serious surgery to get right.

Edit your Profile to get a forum signature.

On August 12, 2022 at 10:05 pm Dutch Wrote

Chris,

If you are building a 707-123B of American Airlines, you will need JT3D engines with turbo-compressor hoods on engine #2 & #3 only. Engines #1 & #4 will not require them.  So, you just can’t transfer the JT3D engines from a Heller or Airfix 707-320B or E-3A/B/C or E-3D/F kit.  However, you are in luck, as a chap in Chile makes some beautiful resin TF-33 (military JT3D) enignes for the AMT KC-135 kit with turbo-compressor hoods on #2 & #3.  The big advantage, these engines are designed for the AMT KC-135 kit, so it should be a simpe fit.  Look on ebay for “KC-135 Pratt & Whitney TF-33 engine resin conversion kit 1/72“, seller kanito2012cl.  I have no affiliation with the vendor of the product.

Kind regards,

Dutch

I would advise all to be wary of ordering anything from this vendor. Over a year ago I purchased one of his products via eBay. There was no difficulty with the transaction, but when I received it, I discovered that the instructions were missing from the item, a well-made but complicated conversion kit requiring an extreme knowledge of the subject (which I do not have) in the absence of any detailed guidance on how to utilize it. I contacted him and he replied, telling me that the original instructions were on a hard drive that had failed, that he was redoing them, and that they would be sent to me within two weeks. I have yet to receive them, in spite of several reminders and enlisting the help of a mutual acquaintance. So before you order anything from him, I would advise you to ask if complete instructions are included.

Edit your Profile to get a forum signature.