Captain Bash Posted February 4, 2020 Author Report Share Posted February 4, 2020 16 hours ago, aviatoreb said: I am a little worried about that setting since Continental came out with a SB a few years ago warning against the rpm settings formerly part of their years of performance charts, including 2200 rpm. But I presume the issue is worse at higher MP pressures. I have converted my practices since several years that Im only running 2200 at very low settings like the 26'' 55% setting but I no longer bother with the 2200-30'' setting 65% but I skip straight to 2300-30''. And on up from there. Anyway not critiquing you but just FYI in case you never saw this SB. http://www.tcmlink.com/pdf2/CSB09-11A.pdf Agreed. I never go below 2400 rpm. I don't even wanna mess with the 2300 baseline. I find myself running 31" which gives me 19gph and 1595 TIT. If I want to go economy I use 26"/2400 at 15gph and 1600 TIT. That's my "LOP" equivalent. 1 Quote Link to comment Share on other sites More sharing options...
kortopates Posted February 4, 2020 Report Share Posted February 4, 2020 6 hours ago, Captain Bash said: Agreed. I never go below 2400 rpm. I don't even wanna mess with the 2300 baseline. I find myself running 31" which gives me 19gph and 1595 TIT. If I want to go economy I use 26"/2400 at 15gph and 1600 TIT. That's my "LOP" equivalent. I wouldn't worry so much about low RPM ops, here is a little more background on Continental CSB09-11A. It's a service bulletin, not an AD, so it is not an operating limitation, just a suggestion. CSB09-11 arose out of accelerated crankshaft counterweight pin/bushing wear that occurred in the Cessna 402C fleet operated by a Part 212 air carrier called Cape Air. The problems occurred in turbocharged TSIO-520 engines that were operated very far oversquare and with worst-case ROP mixtures. The Cape Air operations were very unusual -- extremely high-cycle ops, very short flights, worst-case leaning procedures. This same issue prompted Continental to publish a Min cruise RPM on some NA engines including 2300 rpm for the IO-550. But Mike Busch, to the best of his knowledge and belief, no similar accelerated counterweight pin/bushing wear has ever been observed in normally aspirated Continental engines, nor in engines operated primarily LOP. The intensity of power pulses (and thus torsional stress on the crankshaft and motion of the counterweights) is greatly reduced during LOP operation. Mike also has literally thousands of hours flying TSIO-520 engines LOP at RPMs in the 2100-2200 range and no unusual counterweight pin/bushing wear was observed at teardown. Perhaps that may ease some concerns. 1 Quote Link to comment Share on other sites More sharing options...
FloridaMan Posted February 5, 2020 Report Share Posted February 5, 2020 On 2/1/2020 at 8:04 PM, MIm20c said: I’m not lucky enough to own a rocket but they look like they are adjusted pretty wide. How are the cyl temps? Any pics of them open...do they look like this Is your fuel cap on straight? 1 Quote Link to comment Share on other sites More sharing options...
FloridaMan Posted February 5, 2020 Report Share Posted February 5, 2020 On 2/2/2020 at 12:12 AM, philip_g said: Never a problem with temps. The rocket baffles are pretty good but I ran rop and fairly conservative tit imo. Ours wouldn't run lop. I can't find any closer to 75 percent at the moment Why are you missing your IAT on your EDM900? Or did you sneak around that and put the CDT probe on the other side of the intercoolers? Quote Link to comment Share on other sites More sharing options...
Austintatious Posted February 5, 2020 Report Share Posted February 5, 2020 55 minutes ago, kortopates said: I wouldn't worry so much about low RPM ops, here is a little more background on Continental CSB09-11A. It's a service bulletin, not an AD, so it is not an operating limitation, just a suggestion. CSB09-11 arose out of accelerated crankshaft counterweight pin/bushing wear that occurred in the Cessna 402C fleet operated by a Part 212 air carrier called Cape Air. The problems occurred in turbocharged TSIO-520 engines that were operated very far oversquare and with worst-case ROP mixtures. The Cape Air operations were very unusual -- extremely high-cycle ops, very short flights, worst-case leaning procedures. This same issue prompted Continental to publish a Min cruise RPM on some NA engines including 2300 rpm for the IO-550. But Mike Busch, to the best of his knowledge and belief, no similar accelerated counterweight pin/bushing wear has ever been observed in normally aspirated Continental engines, nor in engines operated primarily LOP. The intensity of power pulses (and thus torsional stress on the crankshaft and motion of the counterweights) is greatly reduced during LOP operation. Mike also has literally thousands of hours flying TSIO-520 engines LOP at RPMs in the 2100-2200 range and no unusual counterweight pin/bushing wear was observed at teardown. Perhaps that may ease some concerns. Yes, thank you for all the concern guys. That being said, I am choosing to ignore the SB. These engines were operated for decades without counterweight issues... Cape air was running them ragged in flight I have heard like 40 inches and 2000 RPM. If someone has any definitive info on exactly where they were operating them that would be great. and who knows about on the ground... they may have been idling them at low RPM as well which is hard on the counterweights. for now I am still running ROP, however quite far ROP and not near the red box. I plan to run LOP when and if I can get the gamijectors fine tuned. Quote Link to comment Share on other sites More sharing options...
MIm20c Posted February 5, 2020 Report Share Posted February 5, 2020 37 minutes ago, FloridaMan said: Is your fuel cap on straight? Well my parents did say they dropped me on my head a lot when I was a baby...or are you referring to the fuel cap in the picture? Quote Link to comment Share on other sites More sharing options...
carusoam Posted February 5, 2020 Report Share Posted February 5, 2020 Fuel cap looks like it locked down a bit ajar in the pic... My mom said she dropped me as well, and my fuel caps are flush/even all the way around... Go Moms! Best regards, -a- 1 Quote Link to comment Share on other sites More sharing options...
Austintatious Posted February 5, 2020 Report Share Posted February 5, 2020 On 2/3/2020 at 1:20 PM, Captain Bash said: Eh, I cant really complain. It's still a quick airplane for sure. Gotta love a 13 knot tailwind. https://flightaware.com/live/flight/N513SB/history/20200202/2045Z/KUDD/KFFZ/tracklog I just wish i could get the TAS that rocket said is possible at that altitude...i wish they were honest lol. I'll always be yearning for that extra 10 knots. I am starting to believe that a mistake was made in the rocket power setting / performance chart. I find it a bit too coincidental that if I set my TAS dial to the + side instead of the - side temp wise, that my TAS is exactly what is on the chart. On my AS indicator the + numbers are on the left, opposite of what you would think. When I set the dial correctly I am always slower than the published numbers... when I set it incorrectly (as if the + is on the right) I am spot on. So either the person who put those numbers down had the dial set wrong, or my aircraft (PLURAL) are both exactly the same number of knots slower than book. Try setting the dial incorrectly at altitude and see if the read TAS now matches the book numbers. Quote Link to comment Share on other sites More sharing options...
Austintatious Posted February 5, 2020 Report Share Posted February 5, 2020 On 2/3/2020 at 7:44 AM, aviatoreb said: But then - why are you co-owning 2 half rockets? Why not own one full rocket? There are a few benefits to doing so. Owning half of 2 aircraft cost the same as owning 1 all to myself. Owning half of 2 aircraft splits up surprises (although I am twice as likely to have one I suppose) Owning half of 2 aircraft gives more reliable availability. I still have 1 available when 1 is down for maintenance/ annuals. 1 has long range tanks, so If I need range I can use that one. Getting either aircraft to or from maintenance is really easy! fly them both out (one owner in each )and come home in one together. Of course it would be cheaper to own half of 1 aircraft, but then availability can become an issue. 1 Quote Link to comment Share on other sites More sharing options...
Austintatious Posted February 5, 2020 Report Share Posted February 5, 2020 On 2/3/2020 at 10:05 AM, Captain Bash said: Well boys, there's only one way to solve this mystery... MS Rocket Race! It would certainly be fun to have a Rocket get together! Quote Link to comment Share on other sites More sharing options...
Yooper Rocketman Posted February 5, 2020 Report Share Posted February 5, 2020 On 2/2/2020 at 4:38 PM, aviatoreb said: Well that's a disappointing post. I was kinda getting excited to find 5 kts more of free speed with a minor cowl flap adjustment. We are always excited if we can discover something that reveals free speed like that. Truly free if you don't need to buy some speed mod, or whatever. I could help you with that ......... but probably not for free. The next logical step for a long time Rocket owner. I passed a Pilatus on the way to Florida on Monday. Had him by 40 knots. That modified motor from my mom’s riding lawnmower was kicking butt. Tom 2 Quote Link to comment Share on other sites More sharing options...
aviatoreb Posted February 5, 2020 Report Share Posted February 5, 2020 3 hours ago, Yooper Rocketman said: I could help you with that ......... but probably not for free. The next logical step for a long time Rocket owner. I passed a Pilatus on the way to Florida on Monday. Had him by 40 knots. That modified motor from my mom’s riding lawnmower was kicking butt. Tom And you did this 100+ TAS increase in cruise speed by changing the rigging on your cowl flaps? Can you give me the name of your mechanic please? 1 Quote Link to comment Share on other sites More sharing options...
aviatoreb Posted February 5, 2020 Report Share Posted February 5, 2020 5 hours ago, Austintatious said: It would certainly be fun to have a Rocket get together! YES! We can call it the rock-ball. Would Missile owners be invited? Or is it turbo-only? BYOT. Quote Link to comment Share on other sites More sharing options...
PJClark Posted February 5, 2020 Report Share Posted February 5, 2020 middle of the country somewhere and I'm in on the Rock-Ball. Quote Link to comment Share on other sites More sharing options...
Austintatious Posted February 6, 2020 Report Share Posted February 6, 2020 4 hours ago, aviatoreb said: YES! We can call it the rock-ball. Would Missile owners be invited? Or is it turbo-only? BYOT. Sure, we can just call it the "mooney Ballistic Bash" ! 1 Quote Link to comment Share on other sites More sharing options...
aviatoreb Posted February 6, 2020 Report Share Posted February 6, 2020 (edited) BTW - I flew today. Test flight - my VOR receiver had died - KN53 and I availed myself of an inexpensive ebay unit - even with the papers. Yellow tag. First time I ever tried that - slide in replacement (mechanic) 5 min and off I went. Where was I...oh yeah - flew today. So I took pictures of my cowl flaps for this thread. Turns out my memory is wrong - the flaps like above are what mine look like OPEN vs closed. And since I rarely have them closed on the ground - I forgot how tight mine area already rigged. They are rigged pretty tight so Im not inclined to change anything. Edited February 6, 2020 by aviatoreb 1 Quote Link to comment Share on other sites More sharing options...
Captain Bash Posted February 6, 2020 Author Report Share Posted February 6, 2020 18 minutes ago, aviatoreb said: BTW - I flew today. Test flight - my VOR receiver had died - KN53 and I availed myself of an inexpensive ebay unit - even with the papers. Yellow tag. First time I ever tried that - slide in replacement (mechanic) 5 min and off I went. Where was I...oh yeah - flew today. So I took pictures of my cowl flaps for this thread. Turns out my memory is wrong - the flaps like above are what mine look like OPEN vs closed. And since I rarely have them open on the ground - I forgot how tight mine area already rigged. They are rigged pretty tight so Im not inclined to change anything. Dag nabbit! I'm jealous. I want mine rigged like that!! Can the adjustments that are needed be found in the service manual?! Is it rigging hardware or just an adjustment? Quote Link to comment Share on other sites More sharing options...
aviatoreb Posted February 6, 2020 Report Share Posted February 6, 2020 25 minutes ago, Captain Bash said: Dag nabbit! I'm jealous. I want mine rigged like that!! Can the adjustments that are needed be found in the service manual?! Is it rigging hardware or just an adjustment? Yeah - when I saw yours it looks like mine -' but I forgot - it looks like mine open. Except - yours closed is actually a little more open than mine open. And as you see mine closed are pretty well closed. About 6-7 years ago I went to a regional guru shop in Lancaster, PA, called Weber aircraft and they have a shop with a shop floor full of Mooneys. I had gone specifically for rigging - but now that I think of it they did the runner boards and all that for rigging so the ball flies centered in flight - but they must have rigged my cowl flaps just so then at that time. So the guy who did it has since retired - but he would work on the plane then test fly it then rig some more until he was satisfied. You need a guy like that! Quote Link to comment Share on other sites More sharing options...
Captain Bash Posted February 7, 2020 Author Report Share Posted February 7, 2020 On 2/5/2020 at 8:11 AM, Yooper Rocketman said: I could help you with that ......... but probably not for free. The next logical step for a long time Rocket owner. I passed a Pilatus on the way to Florida on Monday. Had him by 40 knots. That modified motor from my mom’s riding lawnmower was kicking butt. Tom Well... I see an N1 reading, ITT, redline of 220kts at 33GPH... Is this a turbine mooney? Quote Link to comment Share on other sites More sharing options...
tmo Posted February 7, 2020 Report Share Posted February 7, 2020 Avatar area says: Reg #:N994PT Model:Lancair IVPT An award winning build, too. Look for the pics, it's plane porn at its finest. 1 1 Quote Link to comment Share on other sites More sharing options...
Captain Bash Posted February 7, 2020 Author Report Share Posted February 7, 2020 1 hour ago, tmo said: Avatar area says: Reg #:N994PT Model:Lancair IVPT An award winning build, too. Look for the pics, it's plane porn at its finest. Omg stop it... Now I'm looking at the for sale section on controller... https://www.controller.com/listings/aircraft/for-sale/24382513/2006-lancair-iv-p Quote Link to comment Share on other sites More sharing options...
tmo Posted February 7, 2020 Report Share Posted February 7, 2020 You're doin' it wrong The one you linked has a TCM TSIO 550-E, like a Mooney, not a turbine like N994PT... Try this one instead... I'll show myself out... 1 Quote Link to comment Share on other sites More sharing options...
Yooper Rocketman Posted February 8, 2020 Report Share Posted February 8, 2020 23 hours ago, Captain Bash said: Well... I see an N1 reading, ITT, redline of 220kts at 33GPH... Is this a turbine mooney? Actually at altitude I’m speed limited by Mach number. .57 to be precise. That fuel burn was high that trip. I normally am around 30 GPH at 300 knots TAS. I was at just under 20 GPH on my Rocket at 200 knots, plus I have much more range in the Lancair. Tom Quote Link to comment Share on other sites More sharing options...
Yooper Rocketman Posted February 8, 2020 Report Share Posted February 8, 2020 22 hours ago, tmo said: Avatar area says: Reg #:N994PT Model:Lancair IVPT An award winning build, too. Look for the pics, it's plane porn at its finest. tmo, You keep this up you’re going to end up on my “I owe him a ride” List. Where you located? Tom 1 1 Quote Link to comment Share on other sites More sharing options...
Austintatious Posted February 9, 2020 Report Share Posted February 9, 2020 6 hours ago, Yooper Rocketman said: Actually at altitude I’m speed limited by Mach number. .57 to be precise. That fuel burn was high that trip. I normally am around 30 GPH at 300 knots TAS. I was at just under 20 GPH on my Rocket at 200 knots, plus I have much more range in the Lancair. Tom how much is your insurance? Quote Link to comment Share on other sites More sharing options...
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