DeltaRules From United States of America, joined Sep 2001, 3812 posts, RR: 9 Posted (13 years 2 months 3 weeks 4 days 19 hours ago) and read 4522 times:
I'd like to hear about some memories that you may have about Delta's recently retired L-1011 TriStars.
I have many great memories.
The first of 8 flights I would take on the L10 was from SFO-ATL in Sept. 1995. I don't remember it well, but I liked the Low Roar of the engines as they were powered up to taxi. I was facinated by the widebody configuration (it was my first widebody) and the elevators to the lower galley.
The majority of the flights I would take on the L10 (6 of 8) was either ATL-SJU or vice-versa. March 1999 was the best flight for me out of these. I got to take the night flight, which is the flight I had wanted to take, and we upgraded to first class. Big thing for a 5th grader (at the time) That was my first and only trip on an L-1011-500. Good food, an entertaining movie (I forget which it was) and the Airshow map all combined for a great flight, especially because we were going to my "second home," San Juan, Puerto Rico.
The other flight I took on the L-1011 was DL 1468 TPA-ATL in 1998. It was a quickie, but after the flight, I asked, and I got to go down to the lower galley!!
That was neat.
We went to Florida this year, and my family scheduled us to go CMH-ATL, and then ATL-MCO on the L-1011. We were then scheduled to come home at 2 pm on the 31st of July (guess which flight?)
Unfortunately, it didn't happen. We were told that the TriStars had been retired on an earlier date (when, Im not sure, of course, they weren't.) We flew down on USAirways instead, on an A320 and a 757, coming home on a 737 and a EMB-145. Not complaining about US, they're a great airline too!!
I saw the pictures on airliners.net when I got home of the last flight, and the retirement ceremonies. At least I saw them somewhere.
I will never forget the L-1011s, and all the great memories they gave me in the past. Who knows what the future will hold?? Maybe I will be on another L10 someday.
I would be interested to hear some memories other people have of these magnificent airplanes. Thanks!
American 767 From United States of America, joined May 1999, 3944 posts, RR: 12
Reply 3, posted (13 years 2 months 3 weeks 2 days 1 hour ago) and read 4307 times:
AIRLINERS.NET CREW FORUM MODERATOR
I flew on a Delta L-1011 once in my life. That was my last flight on an Lockheed aircraft, flight 688 back in 1994, when I flew from Dallas to Atlanta connecting on a 767 to Brussels. I don't remember which L-1011 it was but it was not a 500. I do remember that the seats were yellow and green at the back of the coach cabin, that's where I was seated. Yes I know, in 1994, Delta still had a lot of L-1011's but I was still very lucky to fly on one. I was pleased anyhow to fly on it because I knew that I would not have the chance to fly on one again after that particular one. The other two airlines I flew L-1011's on were Pan Am and TWA back in the 1980's.
I love the Tristar.
Lowsonboy From United Kingdom, joined Aug 2001, 275 posts, RR: 0
Reply 4, posted (13 years 2 months 3 weeks 1 day 12 hours ago) and read 4287 times:
I once flew on a L1011, with TAP from Heathrow to Faro in Portugal. I don't remember that much about it (I was quite little) but I seem to remember being very impressed with the plane (I've always loved the design of the big tri-jets). I think the inside was a bit shabby and tired looking. Still, I would love to go on one again!
DeltaRules From United States of America, joined Sep 2001, 3812 posts, RR: 9
Reply 5, posted (13 years 2 months 3 weeks 1 day ago) and read 4278 times:
I know ATA still has theirs until 2003, that's my only shot to fly on them, YES Portugal picked up some ex- Delta L1011-500s, Flying Hospital has a couple, including Delta's last TriStar, Orbital Sciences, BWIA, Arrow Air, Fine Air, Air Atlanta (for a little while) and the RAF still has them as tankers (I think.) I can't think of any others off the top of my head. I heard an Irish start-up Celtic Airways ordered 40 ex-Delta TriStars, is that true? Does Royal Jordainian still have them? Just wondering if anybody knows.
Dazed767 From United States of America, joined May 1999, 5498 posts, RR: 51
Reply 6, posted (13 years 2 months 2 weeks 6 days ago) and read 4271 times:
I've flown on 5 TriStars.
I was 8 years old, but remember how big the interior was, that was about it. I slept most of the flight.
I was about 15 at the time, and requested to my dad that we get an L1011....way to go dad. I remember the "flight tracker" was on inflight, so we could watch our progress, only time I've seen that on a DL flight. The turbulence into DFW was crazy, TSTMS were bad. We sat in the last row, man that #2 was LOUD!
I love how each tristar has it's own personality. I remember they had problems with the lighting in the cabin before push-back, and the F/A's saying "all or none!" I've never felt so much vibration on any a/c as each engine (and especially as the #2) started up, what a great flight.
I thought this was going to be my last L1011 flight. It was a night flight so I couldn't see much, but I remember the hard turn to the right as we turned for short final for runway 35 at MCO.
N728DA (Final L10 rev. flight)
OH BOY, what a flight! I had to ride it one more time, and I was lucky enough to get a seat with 3 weeks left (seat 11J!). I'll never forget the crowd at the gate, 300+ people all trying to get a spot at the window to see her come in one last time. 1/4 of that plane must have been people like us who wanted to be on the last flight. The atmosphere was like nothing else, with champagne flowing like water, and the media running around on board. They did request a fly-by over ATL, but because the plane was so late because of the mechanical in ATL before it came to MCO, they denied it. I 'was' the last pax off, but someone forgot their plane tix on board, and had to get back on.....darn! haha.
I'm going to miss that bird, I guess I'll have to keep going back to MHV and VCV to see them.
N757AT From , joined Dec 1969, posts, RR:
Reply 7, posted (13 years 2 months 2 weeks 1 day 22 hours ago) and read 4244 times:
My first Delta L-1011 was on November 11, 1983 from Miami to Atlanta. This was the last Delta departure from Miami to Atlanta for the day and the flight was rather empty. My second trip came on July 27, 1988 when I was going to Air Force Basic Training. I flew from Atlanta to Dallas/Ft. Worth in the afternoon. My last trip was in January 1998 when I flew from Dallas/Ft. Worth to Atlanta on Flight 16. This was the L-1011 that originated in Honolulu and arrived DFW at 0630L. I shot camcorder footage on this flight and got the tracking screen plus another L-1011 flying under us after departing ATL.
Altoun From France, joined Feb 2001, 70 posts, RR: 0
Reply 8, posted (13 years 2 months 1 week 5 days 1 hour ago) and read 4220 times:
My first and last flight was on the last Tristar of Delta few months before its last flight. Do you follow me?
I mean ATL-MCO the 18th april 2001, on A/C# 728.
It was terrific! (furthermore the visit of the flight deck @ MCO)
I will miss the L1011...
B737-700 From , joined Dec 1969, posts, RR:
Reply 9, posted (13 years 2 months 1 week 4 days 13 hours ago) and read 4217 times:
I got one or actually two but I don't remember them well.
The first one went in the summer of 1996 from STR via AMS to ATL.
It was about an one hour hop to AMS. Then after refueling and more pax boarding the plane we left for AMS and headed straigth towards AMS. It was a nice airplane but at that time I was disappointed that I was not allowed to visit the cockpit inflight. Late ron I learned that this is prohibited on any US Airline.
The second flight was was from ATL nonstop to STR due to some engine problems.
The pilot notified us when we reached European mainland that we wqould continue on to STR without stopping at AMS because they could fix the problems better at STR. I think they did it because there were a lot more PAX aboard from STR than from AMS-so it might have been cheaper for them.
FlyCMH From United States of America, joined Jul 1999, 2284 posts, RR: 10
Reply 12, posted (13 years 2 months 1 week 1 day 7 hours ago) and read 4193 times:
I flew on Delta's L-1011 aircraft twice, both times between Atlanta and San Juan. Both times were somewhat early in my life, once when I was 6 years old, the other was when I was 11. However, I do remember thinking the L-1011 cabin was extremely wide, and thinking the large movie screens were the absolute coolest things in the world. I also remember both flights being exceptionally smooth, and all the passengers clapping upon arrival at SJU.
Salvation From United States of America, joined Jun 2001, 176 posts, RR: 0
Reply 15, posted (13 years 1 month 3 weeks 1 day 23 hours ago) and read 4166 times:
I travelled on some of DL's L-1011s on a number of its flights over the Pacific Ocean. On DL 17 from DFW to HNL and a number of DL flights from LAX to HNL. Many times I was blessed with the opportunity to fly First Class and it was nice. The first class seats DL has on its 767-400's (the chosen replacement on all flights to and from HNL) are very small compared to the one on the L-1011. BUT, the IFE in the new planes are nice. One thing I hate however is the fact that flying times from LAX to HNL have gotten longer. On the L-1011, the flight from LAX to HNL was 4hrs. 55 mins. on average. With the 767-400's, the flying time from LAX to HNL is now 5hrs. 35mins. YUCK :-[).
DeltaAgent From United States of America, joined Dec 1999, 95 posts, RR: 0
Reply 16, posted (13 years 1 month 3 weeks 1 hour ago) and read 4143 times:
My first Delta L1011 flight was labor day Monday 1995 from Atlanta to Dallas. This was the return portion of our first trip together to Philadelphia (his hometown).
I was on a paid ticket and seated in 22B and he was a non-rev seated on the last row. The gate agent said we could sit together if there was a seat open next to one of us. Guess what!! The only seat left open was right next to him. Lucky us!
Delta767300ER From United States of America, joined Dec 2003, 2562 posts, RR: 11
Reply 17, posted (10 years 8 months 4 weeks 1 day 15 hours ago) and read 4064 times:
I have flown on the L-1011 8 times. Below is a summary of all my L-1011 flights and a very special tribute to the L-1011's last flight, and everyone that made it possibly.
Delta Air Lines
No report due to me being slight over 1 year old at the time, however my parents said that I slept the whole flight . This was my first flight ever!
Delta Air Lines
At last after waiting 12 years to get on another L-1011 (or one that I can remember) I was very excited. Out Delta Air Lines Boeing 767-300 flight arrived into LAX right on-time and I usually love having layovers, but this one I wanted to go by fast so I could get on the L-1011. As I boarded the aircraft I was taken by storm by the huge spacious cabin of the L-1011. I finally made my way near the rear of the aircraft where the seating goes to 2-4-2 due to the curve of the tail. I had flown on 767's before, but nothing compared to this great aircraft. As we taxied at LAX we passed by several Delta heavies, a bunch of AA aircraft as well as UAL, some Int'l traffic and a TWA L-1011 We took off westbound and observed a nice view of the Los Angeles skyline as we climbed over the Pacific Ocean. Our In-Flight movie was "Volcano", I thought it was kind or ironic with Volcano being filmed in L.A. (Where we took off from), and our destination being Hawaii which still has 1 active volcano on the big island. The In-Flight meal was very tasty, however I am unable to remember exacly what it was. After lunch and the movie was over I watched the flight tracker and tuned into the radio to see what was going on. It was a very enjoyable flight for me, one that I will never forget. This L-1011 had pink paneling w/ small designs on it that made it look very nice!
Delta Air Lines
As many of you know, this flight is about 25 minutes long. I was seated near the rear of the aircraft as we took off from OGG. It was a very enjoyable flight and the scenery was awesome! This particular L-1011 was the cleanest and newest L-1011 I have ever been on!
Delta Air Lines
My longest flight to date. We were seated about 3/4 of the way through the cabin as we took off around 4:10 PM HNL time and were scheduled to arrive ATL at 6:30ish AM. The weather was perfect under HNL sun as we took off. We passed just north of Molakia(sp) and Lanai as we approached 36,000 ft. I remember looking outside my window and watching the sun get smaller and smaller, it was a very beautiful sight! The F/A's came around and served dinner, which consisted of lasagna, a salad, and a couple pieces of desert cake. I am unable to remember the In-Flight movie, but I tuned in to Delta radio and listened for awhile. About midway through the flight I took a trip to the lavatory, then talked to the flight attendants for about an hour. They were very nice to me and was impressed at my aviation knowledge as such a young age (12). We started our descent over Birmingham, Alabama as I could see some lightning from the clouds we were coming through. As we got closer to Atlanta the skies became clear and we landed in the darkness around 6:25 AM. This aircraft was unique inside due it having a dark grey and red paneling, I have never been on a Delta L-1011 that has been like this.
Delta Air Lines
I was seated near the middle of the aircraft as my vacation was coming to an end, but what better way to end it than on an L-1011. This flight went by very quick but still enjoyable. This aircraft had wood paneling in First Class, however in coach it had white paneling inside.
Delta Air Lines
We were seated in row 13 as our flight was delayed about 1 hour due to mechanical problems (My only L-1011 delay). We took off from MCO at about 9:30 PM and arrived in ATL at about 10:45 AM. This flight was very enjoyable, I had not been home to Atlanta in and a year and a half. Weather was perfect as we touched down into the worlds best city. This aircraft was an older model having a dark blue interior w/ a checkerboard design, however it was still nice!
Delta Air Lines
This was a very enjoyable L-1011 flight. Sadly, I thought this was going to be my last L-1011 flight. We took off from MCO at about 10:05 AM and arrived in ATL about 11:25 AM under perfect skies. After the flight I took several photos of the interior and had a blast! This aircraft had blue paneling that made it look very nice inside!
Delta Air Lines
This week was the best week in my life. Earlier in the week I had gotten up at about 3:00 AM to drive to FLL to catch a BahamasAir flight to Nassau to attend my fathers wedding. On July 30th, I returned to FLL on BahamasAir and waited for my grandma and my aunt to arrive FLL around 11:30 PM. My BahamasAir flight got into FLL about 5:00 PM so I did some spotting and called ILUV767 on my cell phone as he was in Daytona Beach attending an ERAU summer program (Maybee ScottysAir was lurking around somewhere at FLL) Their will be a trip report coming soon about the Bahamas trip. My affiliates finally got in around 11:30 PM so we left FLL shortly after that and with the speed of my Camaro we got back into Highlands County at 1:45 AM. I did a few things around the house, then talked to former airliners.net user scannerson as I borrowed a cam-quarter from him. I slept for about 1 hour, then got up at 3:30 AM, showered and got dressed. It took me about 1 hour to get to MCO. What a week and it wasn't over yet.
On this day I was flying to ATL for the retirement party of Delta's last L-1011. This flight was the 3rd to last L-1011 flight that Delta had. Fl# 1949 was the final L-1011 flight later that day from MCO-ATL. I met former airliners.net user Tom Schepekowski from New Jersey at the gate and chatted with him for about 30 minutes before I boarded my final L-1011 flight. The weather was extremely poor in Orlando as it was drizzling rain, fog, and low ceiling. I had checked the weather channel at MCO and it indicated a cold front was moving across Southern Georgia and into Florida. I was seated in a bulkhead window seat beside a very nice guy of Indian descent. We chatted about the L-1011, flying, India, and a lot of other things. I have found Indian/Hindu people to be my favorite ethnic group of people. We talked to the F/A who was seated facing us about the L-1011 and other stuff. As we cruised over Southern Georgia, the dark clouds below us ended and blue clear skies emerged At this moment I felt like I was the closest to heaven I could get without actually being their. We had an excellent view of the Atlanta skyline as we touched down around 8:30 AM. After the flight I shook Rahim's hand and told him it was nice flying w/ him and he said the same to me. I waited until the whole aircraft had deplaned and I found one of the flight attendants and ask if I could snap some photos of the cockpit, and the cabin of the aircraft. She smiled and thought it was great as she took me up to the cockpit. As I was seated in the Captains chair one of the Captains indicated that their was a problem with the aircraft and would be delayed on the flight back to MCO. The joke going around ATL among the aviation enthusiasts after that was I jammed the aircraft systems to make sure I was the last person ever on a Delta L-1011 I hung out in the cockpit for about 15 more minutes, then started talking to the same F/A and another L-1011 Captain and both of them suggested I come to the lower galley to see what it is like! I was shocked, as I stepped into the narrow elevator and I shot down into the lower galley. It was quite a site! It made me love this aircraft ever more. As we went back up into the main cabin I noticed a young teenager in the cockpit, I reconized his face, it was Hank Nix (Delta777-XXX) I identified myself and shook his hand as we talked for awhile. I stepped off the aircraft and told him that I would catch up with him later. I stepped off the aircraft and met Flyer732, rm-11, and a Delta F/A named Perry. 1 week before all this happened, I had made a list in the Civil Aviation Forum about a gathering and coordinated it with a few members. We met several other enthusiasts around the gate area also. For the next few hours we did some spotting and hung out around ATL. After the delay of N728DA, The aircraft was fixed and a Delta Representative escorted Flyer732, rm-11, Perry and I back into the aircraft to take some photos and sign the aircraft. Special Thanks to Chuck from Delta Air Lines for taking us into the aircraft. We took some more photos, and signed the aircraft inside, and met R. Winston Whitlock, I would also like to thank him for all his help! We went back to the terminal so passengers could board to go to MCO. We hung around some more around ATL, then about 10 minutes before Fl# 1949 landed, we got into position beside gate T1 at The William B. Hartsfield Atlanta Int'l Airport to film and take photos of the final landing. Before landing we met (B747-437B) Sean Mendis and talked to him for awhile as Delta L-1011 ship #738 taxiied, then took off for Victorville. Finally, N728DA made its last passenger landing in ATL. Everybody snapped pics and I recorded the landing. As the aircraft got the water cannon salute and docked at the gate, we were escorted into the aircraft by Delta employees and the place was a zoo!!!!!! We met up with Dazed767 (Justin Cederholm), I met back up w/ Tom, and I also met DeltaSFO (Pat Burns) aboard the aircraft. I signed the aircraft many more times and took a ton of safety cards in the aft cabin! Sadly, we all had to leave the aircraft, so we deplaned. My last time inside an L-1011
We left the gate area and hung around until the aircraft pushed back to the Delta Air Lines Technical Operations Center for the party later that night. We had dinner at McDonalds, then headed to the Delta TOC. Our ID's were checked, and we were issued passes to the aircraft. Their was tons of people their signing the aircraft, and taking photos. I was lucky enough to get lifted into the #1 engine of the aircraft and have some photos made! It was quite an experience. The flying hospital L-1011 was also their. We must of signed the aircraft over 30 times as we were wanting our mark to be left. Sadly, Dazed767 and I had to catch our flight back to MCO
The L-1011 is a very special aircraft to me and many others. The size, layout, comfort, and technology is what attracted me to the aircraft. I will always miss the L-1011
Special thanks to the following that made this special day possible:
Delta Air Lines
Lockheed Martin Aircraft
The William B. Hartsfield Atlanta Int'l Airport
Orlando Int'l Airport
Also special thanks to the following members that I got to meet. It was a pleasure meeting all of you and hopefully we will meet again!
R. Winston Whitlock (Delta Air Lines)
Chuck (Delta Air Lines)
Flyer732 (Ryan Gaddis)
rm-11 (Riz Maher) Also special Thanks to Riz for letting me ride with him.
Perry (Delta F/A)
Dazed767 (Justin Cederholm)
DeltaSFO (Pat Burns)
B747-437B (Sean Mendis)
Delta777-XXX (Hank Nix)
Walter Wilson (A-Net Photographer)
Jay Robinson (A-Net Photographer)
Special Thanks to Delta Air Lines Captain Randy Schmoyer (sp) for flying this great aircraft, who retired along with the aircraft.
Thanks for everyone that made the L-1011 a very special aircraft. If I forgot any users I sincerely apoligize and let me know so I can post a follow up of this.
Here are a few pictures from different periods of time of this great aircraft.
Tom in NO From United States of America, joined Nov 1999, 7194 posts, RR: 32
Reply 20, posted (10 years 8 months 3 weeks 6 days 3 hours ago) and read 3876 times:
I'll add my DL 1011 flights:
6/19/81 flt 1102 LAX-ATL (on my way back to college at ERAU)
8/16/81 flt 1105 ATL-DFW (air traffic controllers had just gone on strike and I got rerouted)
8/16/91 flt 1035 DFW-LAX (same as above)
6/83 flt ??? LAX-ATL (another trip back to college)
9/26/86 flt 192 LAX-DFW (conference in Dallas)
101/1/86 flt 179 DFW-LAX (return from conference)
The sounds of those Rolls Royce engines powering up was unique indeed. My dad worked for Lockheed for many years on the 1011 program, and DL was one of the airlines he worked with.
A fine aircraft, very popular with both passengers and crew members.
Tom at MSY
"The criminal ineptitude makes you furious"-Bruce Springsteen, after seeing firsthand the damage from Hurricane Katrina
JeckPDX From United States of America, joined Nov 2003, 255 posts, RR: 1
Reply 21, posted (10 years 8 months 3 weeks 6 days 1 hour ago) and read 3865 times:
Transtar: Living in ABQ from '87-'90, I also remember the TWA L-1011 service from STL. Though I recall very little, I do remember being thrilled to be on a wide-body jet thinking it was a 747 at the time. I was only 4 yrs old and went to visit my grandparents in Ohio. It was a very memorable trip (partly b/c my grandmother made a scrapbook for me) I went with my two older sisters 8, and 9 at the time,to visit for 3 wks while our paretns started building a house. The flights were TWA ABQ-STL-CVG-STL-ABQ. It is memorable for two reasons, one the 727 from ABQ-STL had to make an emergency landing at STL and we were all briefed for evacuation. It ended up being ok, but pretty scary for 3 young children flying alone. Then there was the L-1011 on the return flight STL-ABQ. I was seated in the center row of seats with only my two sisters so we put up the armrests and had tons of room. I also remember the f/a giving me headphones so I could listen to the IFE music which I thought was really neat at the time. I asked if I could go upstairs since I thoguth it was a 747 but she took me downstairs instead to the lower galley and then to the cockpit where they told me it was an L-1011 Tristar jumbo jet. They gave me some plastic wings with the TWA logo on them I still have somewhere.
Have taken several trips since on the L-1011, mostly with DL, and its probably up there with the 767 as the wide-body jet I've flown the most. I must say that I love the sound of the RB-211s spooling up as well as the spacious interior and elegant "s duct" to the #2 engine. Too bad that they have become mostly obselte. The L-1011 is probably my favorite airliner ever to grace the skies.
"Beer is proof that God Loves us and wanted People to be Happy" - Ben Franklin
ScottysAir From , joined Dec 1969, posts, RR:
Reply 22, posted (10 years 8 months 3 weeks 5 days 19 hours ago) and read 3834 times:
Yeah, this is exactly was remember I was flew on the DL L1011s aircraft and here it is:
ATL-BOS 2x with L1011-500 tri-stars.
I did still remember of those older L1011s aircraft and this is my last time actually that was flew on the L1011s back of 1999. I will able miss with these older L1011s aircraft. This is only for my chance to take a shot and did not do it for me either.
Clrd2go From United States of America, joined Feb 2003, 1000 posts, RR: 0
Reply 23, posted (10 years 8 months 3 weeks 5 days 6 hours ago) and read 3793 times:
I flew on DL L10s 3 times if I recall correctly
ATL-MIA-SJU..early AM (5:30?) departure late 70's..I don't remember a lot
because I slept, having flowin to ATL on a redeye from DEN..one thing
I do remember was being parked at the gate at MIA and the first officer
showing interested passengers the cockpit and answering questions.
SJU-ATL..nice late afternoon flight late 70's..I wanted to look out the window,
everybody else wanted to watch the movie.
ATL-MCO 3/2001..on what I knew would be my last flight on any L10..family
vacation to Disney..loved the flight..the sounds of the engines firing up,
and the power on the takeoff roll..my then 12 year old daughter loved it
as well..the other kids (and my wife) were asleep
Law4fun From United States of America, joined Feb 2004, 135 posts, RR: 3
Reply 24, posted (10 years 8 months 3 weeks 5 days 5 hours ago) and read 3787 times:
Wow...What memories this thread brings back. In the early 80's when I traveled 5 of 7 days per week, I used to fly DL from DFW-Florida (TPA and MCO) and then Florida-ATL-LAX or SFO, all on L-1011s. The most memorable experience was what was thought to be a total loss of hydraulic systems on a flight from DFW-TPA in July of 1983. I was up front (one of 4 pax in the f/c cabin that night) and when the F/A (who I knew from multiple trips in her cabin before) came over and quietly asked me if I was a "believer" and if so, it might be a good time to say a prayer. Thankfully, we were able to land in one piece, albeit a bit hard and had to go down the slides. I still love the L1011 to this day.
I also used to fly TWA from SAN-STL in business class in the same time frame. Excellent seats and service. It is a shame that the big jets have been put out to the desert to sit out the remainder of their days before meeting the torch.
Canon Shutter Slut
: Didn't know this thread still existed...I posted it 1446 posts ago. lol. Cool to see it up again! DeltaRules
: Ya, I know. Proves how much we love the L-1011! -Delta767300ER
: My only flight on a L-1011 was on Delta. That too by chance, I was booked on CO on SJC-MCO via IAH. The flight was over booked and I was put on a Delt