raymar 4 Posted September 27, 2010 Share Posted September 27, 2010 I have the latest version of the Twin Otter but find the manual very thin in "how to Fly the Twin Otter" There is tons of info on the gps and radios, but nothing about V1, V2, Vr, flap settings, Rate of climb, angle of climb, one engine out operations, etc. I found one page about how to taxi and takeoff using the float version. Unfortunately, I am most interested in the wheeled version. The only numbers I can really find is in the kneeboard reference, which is as it should be a reference not a "How To" Anyone have any links from real pilots flying Twotters? Any reviews that mention how to actually fly the bird? Most of the links for the reviews are broken at the Aerosoft Shop for the Twin Otter. (Probably reviews are too old now) How about a website for Twin Otter enthusists? Thanks. Ray Link to comment Share on other sites More sharing options...
Snave 466 Posted September 27, 2010 Share Posted September 27, 2010 I have the latest version of the Twin Otter but find the manual very thin in "how to Fly the Twin Otter" There is tons of info on the gps and radios, but nothing about V1, V2, Vr, flap settings, Rate of climb, angle of climb, one engine out operations, etc. I found one page about how to taxi and takeoff using the float version. Unfortunately, I am most interested in the wheeled version. The only numbers I can really find is in the kneeboard reference, which is as it should be a reference not a "How To" Anyone have any links from real pilots flying Twotters? Any reviews that mention how to actually fly the bird? Most of the links for the reviews are broken at the Aerosoft Shop for the Twin Otter. (Probably reviews are too old now) How about a website for Twin Otter enthusists? Thanks. Ray Kneeboard mate... Link to comment Share on other sites More sharing options...
raymar 4 Posted September 27, 2010 Author Share Posted September 27, 2010 Kneeboard mate... Nothing on the kneeboard has any " How To" , just numbers. But, thanks, Mate. Ray Link to comment Share on other sites More sharing options...
Snave 466 Posted September 27, 2010 Share Posted September 27, 2010 Well, if you haven't, then a reinstall is in your future. DHC-6 TWIN OTTER 300 Wheel REFERENCE INFORMATION Maximum Takeoff Weight 15,500 lb 5670 kg Maximum Landing Weight 12,300 lb 5579 kg Normal Takeoff, Flaps 10 Weight VR V2 12,500 69 79 12,000 68 77 11,500 66 76 11,000 65 74 10,500 64 72 10,000 64 70 9,500 64 70 VR = Rotation Speed V2 = Takeoff Safety Speed STOL Takeoff, Flaps 20 Weight 63 73 12,500 62 71 12,000 61 69 11,500 60 68 11,000 59 67 10,500 58 65 10,000 58 63 9,500 58 63 VR = Rotation Speed V2 = Takeoff Safety Speed Normal Approach, Flaps 20 Weight Vref 12,300 80 12,000 79 11,500 77 11,000 75 10,500 73 10,000 72 9,500 70 9,000 68 8,500 66 8,000 64 7,500 62 Vref = Reference Landing speed STOL Approach, Flaps 40 Weight Vref 12,300 74 12,000 72 11,500 70 11,000 69 10,500 67 10,000 66 9,500 64 9,000 62 8,500 60 8,000 59 7,500 57 Vref = Reference Landing speed Climb Torque Pressure – 91% NP (oat in Celsius) P Alt -20° -10° 0° +10° +20° +30° 6000 50 50 47 43 40 36 8000 49 46 43 40 37 33 10000 45 43 40 37 34 30 12000 42 39 37 34 31 28 14000 38 36 33 31 28 25 16000 37 35 32 30 28 -- 18000 34 32 30 28 -- -- 20000 31 29 27 25 -- -- Airspeed Limits (CAS) in knots Landplane Ski/ Float Vne (Never exceed) 202* 183* Vno (Max. struct cruise) 160** 160** Vp (Maneuvering) 130*** 149.8*** Vmc (Minimum control) 64 73.7 Vfe (Flaps 0° to 20°) 100 115 Vfe (Flaps 20° to 40°) 85 97.9 * Reduce Vne 4.6 m.p.h. (4K) per 1000 ft. above 10000 ft. ** Reduce Vno 3.5 m.p.h. (3K) per 1000 ft. above 10000 ft. *** Reduce Vp - Vno above 20000 ft. Maximum Cruise Speeds, TAS Sea Level 170 kts 5000 feet 181 kts 10,000 feet 182 kts Enroute Climb Sealevel Both engines max climb power 1600 ft/min Single engine at max continuous power 340 ft/min Service Ceiling (< 100 ft/min Climb) Both engines max climb power 26,700 ft (8138 meter) Single engine at max continuous power 11,600 ft (3536 meter) Maximum Endurance Standard tankage 7 hour 10 min Maximum range (zero payload) Standard tankage 775 nm (1435 km) Min Landing / Takeoff distance STOL Takeoff to 50 ft 1200 ft (366 meter) Landing from 50 ft 1050 ft (320 meter) Everything? Probably not. Everything you mentioned above? Yes. Perhaps your FSX has been tweaked with one of the several snake oil mods that mullahs the kneeboard..? Link to comment Share on other sites More sharing options...
raymar 4 Posted September 28, 2010 Author Share Posted September 28, 2010 Well, if you haven't, then a reinstall is in your future. Everything? Probably not. Everything you mentioned above? Yes. Perhaps your FSX has been tweaked with one of the several snake oil mods that mullahs the kneeboard..? Like I said prior to you spending the time to post the kneeboard, they are just numbers, mostly minimums and maximums. I know this, I have this. What I am looking for is some practical "How To" info. For instance, How to perform at normal takeoff. Given gross weight, given amount of fuel on board, sealevel, 59 deg f, zero wind Kinda like full power, 20 degrees flaps, rotate at 82 Kts, climb out at 90 kts, reduce power . . . . . . vmc = ____ kts. This is what I am looking for. Thanks. Surely, some of you sim pilots have figured it out already. RayM Link to comment Share on other sites More sharing options...
Snave 466 Posted September 28, 2010 Share Posted September 28, 2010 Like I said prior to you spending the time to post the kneeboard, they are just numbers, mostly minimums and maximums. I know this, I have this. What I am looking for is some practical "How To" info. For instance, How to perform at normal takeoff. Given gross weight, given amount of fuel on board, sealevel, 59 deg f, zero wind Kinda like full power, 20 degrees flaps, rotate at 82 Kts, climb out at 90 kts, reduce power . . . . . . vmc = ____ kts. This is what I am looking for. Thanks. Surely, some of you sim pilots have figured it out already. RayM Manual p.26 seems to fulfill all your requirements, in conjunction with the more complex `numbers` that you seem to want to disregard from the kneeboard. This is not a complicated aircraft. It is a STOL aircraft that is used in a any number of different situations. As the manual says in a single page, one doesn't really need anything more complex than that and if you're looking for something more, then perhaps you're over-thinking it and need to move on from the `airliner` mindset..? And the numbers quoted on the kneeboard are MORE than just `max` and `min` that you so quickly dismiss: THEY ARE THE OPERATING NUMBERS. If you operate to those numbers, your well within operating parameters. Stay with the single page on the manual, you are well within operating parameters. After that, it's for you as a pilot to explore and adapt, precisely as you would in a GA plane. As the manual mentions, reverse thrust in flight is not recommended, yet is often used in those situations that demand it. Flap settings are dictated by the style and place of landing. If you're mixing it with the Big Boys Toys at a major international hub, keep it well up to 120 knots until you cross the threshold, then drop it into beta (not reverse) drop out first notch of flap, and plonk it down, make use of the STOL and get off the runway... coming in over a steep approach over tall trees into a little grass strip, bang the flaps out early, stay high, then use moderate power and power reductin to conduct a steep approach, maintaining the numbers on the kneeboard... it's no more complicated than that. If you use the numbers on p.26 your approaches may not be as fast and late, or short and steep, but they are well within boundaries. After that, it's a STOL aircraft. Keep it above 50 knots and it flies. Fly to suit. The ONLY complexity to operating the Twotter is the slow spool response to power-up or power-down demands. Common knowledge for PT6 operations: You don't `apply full power` on a turbine aircraft, you `advance the power levers to the stipulated or required torque setting`. Flaps are simply as you need. With that and knowledge of the GPS unit you have all you need to know at your fingertips, providing you actually bother to read the information, which you clearly haven't. The only other possible recommendation is to invest in one of those flying videos that are advertised around the various FS websites. I'm sure there are some showing the Twotter in all its environments. Equally, I'm sure the numbers THEY use won't have much in common with what is on the kneeboard as they use what works for them. BTW the original DHC manual is renowned for being terrible... And lest you think I'm being picky and pedantic, here's a REAL WORLD comment to finish on: Biggest thing is: DO NOT lift off before Vmc! If you rotate early, it will lift off WELL before Vmc placing you in a very bad spot. Unlike virtually every twin trainer where Vmc is a theoretical value since it is below Vso anyway. This thing will show you a neat snaproll if you are below red line and you lose an engine. Other than that, the PT-6 is virtually pilot proof, and the airframe is built like a tank (and handles like one too). Hope this helps. Link to comment Share on other sites More sharing options...
Flyboy1 2 Posted September 28, 2010 Share Posted September 28, 2010 Manual p.26 seems to fulfill all your requirements, in conjunction with the more complex `numbers` that you seem to want to disregard from the kneeboard. This is not a complicated aircraft. It is a STOL aircraft that is used in a any number of different situations. As the manual says in a single page, one doesn't really need anything more complex than that and if you're looking for something Hope this helps. It does help. Thanks very much. Ray Link to comment Share on other sites More sharing options...
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