Raptor Aircraft

Velocity173 said:
Exactly. He needs to spread those wings and expand that flight envelope. It’s capable of so much more.
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That's actually not true. 4,000 feet is the service ceiling of the Craptor. Also his TBO is around 10 hours so that's why he has chosen to do these figure 8's. He is always within gliding distance of the airport.
 
pilotrick said:
That's actually not true. 4,000 feet is the service ceiling of the Craptor. Also his TBO is around 10 hours so that's why he has chosen to do these figure 8's. He is always within gliding distance of the airport.
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Your hatred has broken your sarcasm detector.
 
So, is he just going to fly figure 8’s, then one day attempt to fly to OSH? I haven’t been watching his videos, but I’m assuming that’s a priority for him.
 
dans2992 said:
So, is he just going to fly figure 8’s, then one day attempt to fly to OSH? I haven’t been watching his videos, but I’m assuming that’s a priority for him.
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He seems pretty singularly focused on getting it to California.
 
wanttaja said:
If so, we might want to count on wearing helmets in addition to face masks this July....

Ron Wanttaja
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If he doesn't get it landed and parked at least a day before the fly-in crowd starts up, he won't make it. Ain't no way he can fly an arrival procedure given the airplane's limitations. Beyond that, a 900 mile X/C would be a month long task given the frequency of Raptor flights combined with the demonstrated airspeed and time aloft.
 
kyleb said:
If he doesn't get it landed and parked at least a day before the fly-in crowd starts up, he won't make it. Ain't no way he can fly an arrival procedure given the airplane's limitations. Beyond that, a 900 mile X/C would be a month long task given the frequency of Raptor flights combined with the demonstrated airspeed and time aloft.
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Don't forget he would need a huge ground crew. His plane runs on diesel not Jet-A. How is he going to refuel. He has a range of around 100 miles and will likely need to do a few engine swaps along the way.
 
WOW! Can you imagine if you showed up at Oshkosh 2021 in the Raptor?

However we got there and landed (wide latitude in definition of landed), it would be a media headline sensation for the event.
 
pilotrick said:
His plane runs on diesel not Jet-A. How is he going to refuel.
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Is this correct? I was wondering about that... is he bringing in diesel from the local Shell station? For some reason I thought he got that diesel to run on Jet A

FastEddieB said:
How do the diesel Diamonds get around that?
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The Diamonds burn actual Jet A.. several variants of it actually.. including A-1, A, TS-1, RT, No. 3, JP-8

NordicDave said:
However we got there and landed (wide latitude in definition of landed), it would be a media headline sensation for the event.
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No one would even notice him. The dude has alienated everyone and made too many enemies
 
Tantalum said:
..a diesel engine can run on "anything" .. including cooking oil

https://www.autoevolution.com/news/what-else-can-you-run-a-diesel-car-on-138337.html

So converting his multi-turbo'd Audi frankenstein engine to run on Jet A is not insurmountable.
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It’s as simple as putting jet fuel in the tank. But don’t expect the same amount of power out of the engine as #2 and there might be fuel system components that wear at a faster rate. Turbines will run on many fuels with little or no modification as well.

The flexibility with fuels, as well as improved efficiency is what makes diesels attractive to so many people.
 
Tantalum said:
Is this correct? I was wondering about that... is he bringing in diesel from the local Shell station?
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Yes, he is. Plan is to run Jet A, but he's never done it for flight tests, if at all. Wouldn't put it past him to try it the first time for his first long distance cross country, though.

Should be easily doable to run Jet A, but long term I would think it would need some additives for lubricity and maybe other reasons. Seems like that Audi would be more finicky than airport ops vehicles, but I could be wrong.

Not a chance he'll fly it to Oshkosh this year. Don't think he plans to try. West coast is the next destination, and that's also not going to happen by July. 26 hours left to fly off of his apparently arbitrary 40 before the big trip, and then there's the paperwork to make it legal to leave the 50-mile radius.

At his current rate, he'd hit 40 hours by mid June. That rate could accelerate if no more problems, but more likely it'll slow as south Georgia continues getting hotter by the day and various bandaids continue to fall off the aircraft and need to be reapplied.
 
Mtns2Skies said:
When I worked at the airport we ran diesel vehicles off of jetA no problem.

JetA is just high grade diesel, which is just high grade kerosene.
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Old diesels run fine with JetA, modern, direct injected engines don’t as they depend on diesel fuel’s lubricating properties.
 
231TC said:
Should be easily doable to run Jet A, but long term I would think it would need some additives for lubricity and maybe other reasons. Seems like that Audi would be more finicky than airport ops vehicles, but I could be wrong.
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Unless your premise is that airport vehicles are old and therefore less finicky, they will require similar attention running on jet as the Audi would.

Ive conducted several durability tests of diesels running on jet fuel, specifically on fuel systems, for my employer. Their approach was to use specialized fuel filters which contained an additive that would be picked up by the fuel as it passed through the filters. I would expect something similar could be used in either the raptor or airport vehicles to insure long term durability of the fuel system components when running on jet.
 
...these guys got their 7.3L Ford truck a 4 second 0-60 time improvement running Jet A in their truck.. zero mods


Not a bad video.. not clickbait either
 
Tantalum said:
..Agile sounds nice in theory, but in my experience the practical applications of it, at least on the software side, have been nothing short of excruciatingly painful.
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Mine, too. I’m convinced ‘Agile’ proponents have con’d the rest of the world to accept painful failure and small wins instead of do the hard work up front and then produce because they pretty much all have ADD.

Tantalum said:
..a diesel engine can run on "anything" .. including cooking oil..
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They won’t run for long on gasoline.
 
NordicDave said:
WOW! Can you imagine if you showed up at Oshkosh 2021 in the Raptor? However we got there and landed (wide latitude in definition of landed), it would be a media headline sensation for the event.
Tantalum said:
No one would even notice him. The dude has alienated everyone and made too many enemies
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This forum and several others would light up like Christmas if Peter landed that plane at OSH 2021. I bet Avweb and who knows how many YouTubers would be reporting.
 
NordicDave said:
This forum and several others would light up like Christmas if Peter landed that plane at OSH 2021. I bet Avweb and who knows how many YouTubers would be reporting.
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But he's already got a fairly "big" presence in the virtual world, yet he's a one man show and I'm not aware of a single actual interview he's done for anyone. PM is the kind of guy that would either turn Paul down off the bat or defensively argue every question and item in an interview that would ultimately lead to it not getting published. He's not personable.
 
Plus if he held a forum he would be covered in rotten tomatoes that I would throw at him!
 
Tantalum said:
But he's already got a fairly "big" presence in the virtual world, yet he's a one man show and I'm not aware of a single actual interview he's done for anyone. PM is the kind of guy that would either turn Paul down off the bat or defensively argue every question and item in an interview that would ultimately lead to it not getting published. He's not personable.
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Hard to argue with what you’re saying. I don’t believe he will attempt the trip, but hard to argue it wouldn’t be a splash for him.

Hopefully this drama will just fade away soon.
 
Tantalum said:
...these guys got their 7.3L Ford truck a 4 second 0-60 time improvement running Jet A in their truck.. zero mods


Not a bad video.. not clickbait either
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It was explained to me that you can absolutely run Jet-A in a new diesel engine. But because Jet-A lacks some lubricating properties, if you run it long term, you will run into problems. Or if you run it short term at high power you will run into those problems sooner.
 
donjohnston said:
It was explained to me that you can absolutely run Jet-A in a new diesel engine. But because Jet-A lacks some lubricating properties, if you run it long term, you will run into problems. Or if you run it short term at high power you will run into those problems sooner.
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Not sure if the Audi is similar, but the modern high pressure diesel systems in all three of the “big three’s” trucks have had big issues, suspected to be related at least in part to the relative lack of lubricity in ULSD diesel compared to EU or prior US #2. Blown high pressure injection pumps, fouled injectors, etc. even back when I had my 06 Dodge, there were recommendations from those in the know to add lubrication back in via two-cycle oil, etc to preserve injector life. Guessing Jet-A would be even lower than ULSD on the lubricant issue.
 
Omalley1537 said:
Not sure if the Audi is similar, but the modern high pressure diesel systems in all three of the “big three’s” trucks have had big issues, suspected to be related at least in part to the relative lack of lubricity in ULSD diesel compared to EU or prior US #2. Blown high pressure injection pumps, fouled injectors, etc. even back when I had my 06 Dodge, there were recommendations from those in the know to add lubrication back in via two-cycle oil, etc to preserve injector life. Guessing Jet-A would be even lower than ULSD on the lubricant issue.
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Generally speaking, from what I've read in papers from controlled tests your injectors are more prone to coking when running 2 stroke oil than when you're not. It's not the magic elixir that many purport.

See my previous posts in this thread regarding Jet-A in diesels, lubricity, and the testing I was involved with. I've also been involved with injector coking tests and would suggest being careful of what goes in the tank.
 
Just to simplify things a bit, from more volatile compounds to less, and from lower viscosity to higher (based on basic refinery experience):
-Gasoline (which comes from a naphtha base)
-Jet & kerosene same thing (which come from a light gas oil, jet & kero pretty much the same except for higher cloud point on the jet)
-Diesel & #2 Fuel oil same thing (which come from a heavy gas oil, diesel is just treated for nasties like N & S)

Performance or lack thereof, and adverse effects if substituted, are pretty much self explanatory once this is understood.
 
455 Bravo Uniform said:
Just to simplify things a bit, from more volatile compounds to less, and from lower viscosity to higher (based on basic refinery experience):
-Gasoline (which comes from a naphtha base)
-Jet & kerosene same thing (which come from a light gas oil, jet & kero pretty much the same except for higher cloud point on the jet)
-Diesel & #2 Fuel oil same thing (which come from a heavy gas oil, diesel is just treated for nasties like N & S)

Performance or lack thereof, and adverse effects if substituted, are pretty much self explanatory once this is understood.
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I have turned a lot of K1 into flight time.
 
Only 17 minutes today, never got above 2000 feet. Looks like he aborted to land at a different runway than takeoff. Couldn't find anything on liveatc for the event. His descent rate was about half what it has been in the past, suggesting maybe he was stretching a glide?

https://flightaware.com/live/flight/N352TD
 
Salty said:
Only 17 minutes today, never got above 2000 feet. Looks like he aborted to land at a different runway than takeoff. Couldn't find anything on liveatc for the event. His descent rate was about half what it has been in the past, suggesting maybe he was stretching a glide?

https://flightaware.com/live/flight/N352TD
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He was cleared for takeoff from 35, so it at least looks like he made it back to the runway in use. LiveATC caught the takeoff clearance near the end of the 1230Z feed and after he landed, near the start of the 1300Z feed; the segment that would have included the actual flight is curiously "missing."
 
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