Aircraft with recip. & jets???

mike furline · **Joined:** Wed May 05, 2004 3:45 pm **Posts:** 2633

What types of fuel would be used on aircraft with both recip. & jet engines (C-123, B-36, P2V, etc.)?

Would they run the turbines on avgas or have seperate tanks for avgas/jet fuel?

Regards,

Clifford Bossie · **Posted:** Tue Apr 03, 2012 1:16 pm

The B-36 ran just Av Gas for both jets and recipes. I suspect that all others did as well.

steve dickey · **Posted:** Tue Apr 03, 2012 1:26 pm

As far as I know (was told this years ago by some Neptune guys) the jets run on 100LL!

JohnB · **Posted:** Tue Apr 03, 2012 1:45 pm

Yes, the jets were detuned to run on AVGAS.

b29driver · **Posted:** Tue Apr 03, 2012 4:45 pm

KC-97L had both. Normally JP-4 in the deck tanks and 145 AvGas in the wings. The J47 jets didn't care which they were fed and were regularly run on boffum

mazdaP5 · **Posted:** Tue Apr 03, 2012 4:58 pm

Interesting, I never really considered if they would run on separate or like fuels.

Jerry O'Neill · **Posted:** Tue Apr 03, 2012 5:35 pm

Years ago, I was working a show and "Snort" Snodgrass had an F-86 there for an act. He said to put 100 gallons of 100LL in then fill the rest with Jet gas. Apparently, that's the preferred mixture today for F-86 blowpipes.
Jerry

robkamm · **Posted:** Tue Apr 03, 2012 6:10 pm

very interesting. i never know that would work.

Airlift48 · **Joined:** Sat Oct 29, 2005 7:01 pm **Posts:** 744

Our C-97, then KC-97L refueling an RF4-C over Germany as part of Operation Creek Party.

Notice the J-47 jets in place of the external fuel tanks that once hung there.

As far as I know they all ran on AVGAS.

oscardeuce · **Joined:** Wed Jul 27, 2005 3:34 am **Posts:** 1021

That is the beauty , if it burns the jet can take it. Alcohol, kerosene, gas. All will work for at least a shirt time.

famvburg · **Joined:** Fri Oct 07, 2005 9:41 am **Posts:** 540

I remember back in the late '70s, the first time I saw a PT-6 powered Thrush Commander, the placard at the filler listed just about everything, from various Jet fuel grades to avgas to diesel, IIRC.

mazdaP5 wrote:

Interesting, I never really considered if they would run on separate or like fuels.

famvburg · **Joined:** Fri Oct 07, 2005 9:41 am **Posts:** 540

I remember reading, I think the Naval fighters series of books on the Douglas F3D/F-10 Skyknight that, altho a jet, it burned avgas as the norm. I know I've read it somehwere.

MKD1966 · **Posted:** Wed Apr 04, 2012 2:39 pm

Jerry O'Neill wrote:

Years ago, I was working a show and "Snort" Snodgrass had an F-86 there for an act. He said to put 100 gallons of 100LL in then fill the rest with Jet gas. Apparently, that's the preferred mixture today for F-86 blowpipes.
Jerry

Hey Jerry,
My Dad was Snort's crewchief for about 9-10 years on the Skyblazers Sabre... The reason for mixing the 100LL is that the jet fuel used in the 50's and 60's had 100LL already in it - were as today's JP8 and Jet A do not... When I used to crew for the late Jimmy Rossi, we did the same thing with his Mig-17's... And if your in a situation where you can't get both fuels - then you can go with straight Jet A once in a while... I'm not a mechanic, but I believe the 100LL helps keep the seals and o'rings in good shape...
Mike

Richard Woods · **Posted:** Wed Apr 04, 2012 5:19 pm

The Avro Shackleton MR3/3 had two Rolls Royce Vipers as well as the four Rolls Royce Griffons carried in earlier versions. All were fed on Avgas.

Obergrafeter · **Posted:** Wed Apr 04, 2012 7:14 pm

Most of the duel engine types only ran the Jets for a short while......ie. take off and on the bomb run in, not continuous. Don't know if this would make any differance on them using Av gas or not.

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Aircraft with recip. & jets???

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