I didn't flip my pipe. My flaps are at 25mm for take off and 65mm for landing.

The Tam pipe is a straight pipe unlike skymaster's with the upward bend at the exit. Unless tam has changed his configuration to mimic SM.

I checked off the Big Boy pipe option on my Skymaster order list. Is there an issue with the SM factory pipes, requiring a Tam replacement down the road?

No issue with the SM pipe. Just don't flip it upside down.

Gotcha! ;)

Dantley isn't the most knowledgeable in this area.

There is an issue with the SM pipe. SM piped phantoms climb when on throttle. This is a well documented problem. I will post some threads pointing this out.

Here is one:

http://www.rcuniverse.com/forum/rc-j...ter-f-4-a.html

Dantley has never flown an SM piped phantom. Both of his f-4's had Tam's pipe which doesn't have a bend at the end like the SM pipe. Fact.

And he is too scared to do short field operations with his phantom. Fact. :cool:

With the SM pipe, the phantom will climb on throttle. Fact.

With the CG at 290 and 340 mm the phantom doesn't like full flaps. Fact.

In between those CG's (320mm is the most aft with flaps that I've read, check that, I just found 325) full flaps are probably fine. Many people are comfortably flying with CG's in between those numbers and using full landing flaps just fine.

Full flaps meaning Anton's (SM) recommended landing setting.

I measured my Cg with gear down, tanks empty, UAT full.

Attached see Tam's pipe (on Dantley's Phantom) that points down. Just like the SM one does WHEN IT IS FLIPPED. And then compare it to SM's pipe that sticks straight out when NOT flipped.

That's why he has never seen the climb on throttle phenomenon.

If I were building a new SM phantom, I would CG at 340 (for better short field, short approach situations), invert my SM pipe and not use flaps. Simple.

For some reason, Dantley doesn't think it's ok to land a jet with out flaps? Like it is something that is NOT possible?


http://i384.photobucket.com/albums/o...s/photo-19.jpg

Yes, and I also removed 1.8 pounds of lead from the nose by moving the CG to 340mm.

And those two flights were friggin awesome. Just gobs of power.

I had to take off with about 75% throttle on the second flight. It was too much power.

How many times has "too much" power been associated with a phantom?!!:cool:

I just purchased a previously owned white kit F-4D, to be done in my old squadron colors. It does not have a cockpit kit/pilots or external stores. I am looking for cockpit kit/pilots, inner and outer pylons and wing tanks. Anyone wanting to part with some let me know. Thanks.

Tom I saw that ad in between flights!!! I should've run to the lav and placed my $ on it but alas atleast it went to a good home.

Buck

Check out Chiefs pricing on F4. It is better. I am close to ordering one. I have flown Don Longhofer's F4 with Tam pipe. Flaps on landing and power CG at 345. Love the plane

Will do, last time I talked to those guys it was a 12 week wait. Yuck

Hmmmm... Raffy needs to get another F-4 so we can finally do some formation flying.

Buck.....I might be old but still have quick fingers. Im stoked about having my very own Double Ugly! Plan on Ga Jets this year...its a blast.

345! Wow! Excellent!

Careful with those flaps!

LoL if we hadn't been so close to push time It would be in my garage!!!

Sorry about your F-4 Raf. Great looking airplanes. I remember seeing those flying around all the time as a kid.

Tom, you should make yours eject the crew just like your full scale one did, HA!

Can't wait to see it bro.

Actually have thought about making it the one I ejected from.....but worry about bad omens.

Sounds like one helluva story!

The next F-4 I build will be after this USAF variant I grew up around.

Hi Ash 26;
Do you still need L-39 parts

Hi
depends what have you ?

thanks

Andy

I had great success this year with my replacement Skymaster F-4E. It has its CofG set at 320 and I find that perfect. It has a Jet Central Mammoth and uses the stock Skymaster pipe. After a couple of flights, the onboard Powerbox GPSII recorded a ground speed of 221 mph. It was rock solid and the presence was just incredible. For next season, I'm adding landing lights, pylons, tanks, and a drogue chute. I'm very happy with the flying characteristics and the thrill of the flights! Here's some photos from Larry Ingram and Ken Park:

Jeff

Hey Jeff , your F4 looks great! Let me give you a bit of a tip. Glue and screw the pylons to the bottom of the wing, I lost one of my tanks because the screws pulled through the pylon. Its not a happy plane when you loose one of the drop tanks in flight. I had it up at the Maine Jet Rally and lucky for me the tank landed in the grass with no damage. I was running my CG at 325 for a few years now and its been perfect. I just sold my Edwards F4 and I am doing a new one in the QF4 drone scheme, that should keep my busy until skymaster comes out with the big F4.
Regards,
Don

Hi Don. Sorry I did not get see you this year. Thanks for the pylon tip. My paint scheme is also from a QF-4 from Tyndall AFB. Yes, you should get the big Skymaster F-4 so I can check it out too!

Cheers,

Jeff

Sorry guys for the interruption and getting off track.
Very, Very nice F-4.
I used to own one myself.
Love the look.
Maybe I will get one again sometime in the future.;)

Hi Ash26:

I have all the doors, Canopy for the old version L-39, My extra long range 2.6 L tank designed to fit on top of the JL fuel tanks
and my 1.4 L smoke custom fuel tank,
wing tip tanks, wing pito tubes, speed brakes, wing flap top fairings, nose tire and a used H-stab.

Let me know