|
RE: SHRIKE CLUB # 1
helifryer: The factory CG on mine is 6.125" aft of the LE, measured at the fuse. Your 35 incher is exactly 80% the size of my 43.5 incher. 80% of 6.125 is 4.9" Try that for a start. I balanced mine 1/16 forward of the factory CG, and it flew real stable and had plenty of elevator authority. I don't see much "up" trim on the elevator, either, after the first flights. Remember that this is a delta wing, and it bleeds energy in turns. Going into a turn you have to be right on the elevator or power up, or you'll lose altitude in a hurry. Land level and fast.
Posted on: 11/18/2009 10:21 PM by Author "Mustang Fever"
in the forum "Sport Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9264108
RE: SHRIKE CLUB # 1
Kevin, yeah. Steerable nose gear, no rudders. That's how the ARF was setup by Lanier. Here's some shots of how I did it:
Posted on: 11/18/2009 7:39 PM by Author "Mustang Fever"
in the forum "Sport Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9263871
RE: Shrike 40 from Plans
It barely got into the 50's, today, with a pretty brisk wind blowing right down the paved runway at the Midland club. Away I went. Four TOs and landings, the last two real pretty, after I learned that the "wheeled" ones have to be landed the same as the "wheeless" - come in flat and just pull the nose up a little as it gets near the ground. Landing gear held up real well, in spite of bouncing the length of the runway on the first two attempts. The 600 pack starting fading real fast, so I didn't even get to use up a tank of fuel. Swapped it for my 1450 NiMh. Don't know why I didn't use it to begin with- same size and weight. I had forgotten how much fun Shrikes are. With this ordinary 46, it literally howls. [:D][:D][:D]
Posted on: 11/18/2009 6:47 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9263730
RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
They do flare real pretty, don't they, hotrods? TF said one inch max flap travel, so that' what I have, but only up or down, no in between. I use em on my first TO at a pretty bumpy grass field, and she had no problems. Little bit of wind. Mine came in at a touch over 18 pounds with fixed gear and the gear doors all screwed closed. OS 55AXs turning 12 x 7 APCs at close to 10,000 on the ground. Pretty close to the same punch you have. A bit less top end, I think.
Posted on: 11/18/2009 6:45 PM by Author "Mustang Fever"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9263718
RE: SHRIKE CLUB # 1
My orange and gray plans built one flew great today. About 53 deg. F, and a brisk wind blowing right down the runway. This one sure was a lot better handling than my old ARF that had to have a ton of lead in its butt to balance. [:D]
Posted on: 11/18/2009 6:38 PM by Author "Mustang Fever"
in the forum "Sport Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9263702
RE: SHRIKE CLUB # 1
helifryer: I can calculate it using the location from my 40 size. What's the wingspan on yours?
Posted on: 11/18/2009 7:59 AM by Author "Mustang Fever"
in the forum "Sport Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9262335
RE: Show every one what your P-51 mustangs look like, A Thread worth seeing,Awsome planes
John: This one? What do you think of it's characteristics with the 1.20AX? (I have one that's unemployed at the moment)
Posted on: 11/17/2009 11:20 AM by Author "Mustang Fever"
in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9260057
RE: Show every one what your P-51 mustangs look like, A Thread worth seeing,Awsome planes
That's pretty, Jim. Nice job.
Posted on: 11/17/2009 11:18 AM by Author "Mustang Fever"
in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9260100
RE: Show every one what your P-51 mustangs look like, A Thread worth seeing,Awsome planes
Sweetpea: What are the details on that bird? Size, engine, distributor, etc.
Posted on: 11/17/2009 6:01 AM by Author "Mustang Fever"
in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9259667
Super Kaos Float Plane
Here I go again! Another seaplane project. [:D] This is the Super Kaos (60 size) from RCM Magazine plans, and a lazer works short kit. I'm going to use one (1) Flybaby float, also built from RCM plans. (Removed from a deceased 4*60 a couple years back, 34" long) It'll be hung under the centerline using two vertical pieces of 3/8 OD carbon fiber tube, from dragonplate.com. I'm going to use small B&D air retracts near the wingtips to operated retractable tip floats made of pink foam, ala PBY. They'll conform to the length of the plans tips, but will have about twice their "beam" for good floatation. As I'm not really sure how big they actually need to be, I'm going to make them removable so I can experiment before the first flight. I'm going to mount the vertical fin and rudder on the bottom of the fuse, so that at displacement speeds the air rudder will also be the water rudder. The float step will be about 2" below the end of the fin/rudder so that they will be well clear of the water when the A/C is on plane. I'll add some fin/rudder area in the form of an extension that will go on top of the fuse. Power will be my old, well broken in Magnum 91 four stroke.
Posted on: 11/16/2009 8:19 PM by Author "Mustang Fever"
in the forum "Seaplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9258849
RE: Shrike 40 from Plans
Ran it up outside today, just for something to do that does not involve sitting in the basement. 13,900 with an APC 10x6. Very steady 2500 rpm idle. (This engine is two seasons old and well run in on two different airplanes.) (46AX) That's good for about 80 mph and a bit more thrust than airplane weight, so maybe hand launch will work after all. I'll wait for a windy day to try it, tho.
Posted on: 11/16/2009 1:27 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9257862
RE: Shrike 40 from Plans
Your name is forever "Rad Ray". Well done.
Posted on: 11/16/2009 12:57 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9257802
RE: Shrike 40 from Plans
Joe: Go ahead and get that canopy. Mine's a done in target drone colors and wouldn't have a pilot on board anyway.
Posted on: 11/16/2009 8:05 AM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9257234
RE: Shrike 40 from Plans
Joe: I don't have one that would look right. Maybe someday.
Posted on: 11/15/2009 9:00 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9256286
RE: Shrike 40 from Plans
Mike: I'm not so sure of the weight, anymore. My old fish scale says 4.5 pounds with the LG, but my very accurate electronic bath scale says 4.2, so it might be lighter than I think it is. In any event, it's way lighter than my old Lanier ARF was, so it should fly a lot better. The weather here and where we'll be over Thanksgiving is not looking good for the maiden. I might have to wait awhile.
Posted on: 11/15/2009 6:08 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9255847
RE: SHRIKE CLUB # 1
Ready to fly. CG on the mark with no ballast, and 72 oz with the landing gear.
Posted on: 11/15/2009 5:12 PM by Author "Mustang Fever"
in the forum "Sport Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9255740
RE: Shrike 40 from Plans
Strike Force. Ready to fly.
Posted on: 11/15/2009 5:09 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9255730
RE: Shrike 40 from Plans
Joe: I had completely forgotten it was you. I have since made a copy and sent it to a guy in England. The design remains popular.
Posted on: 11/15/2009 9:17 AM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9254913
RE: SHRIKE CLUB # 1
Go for it!!!!!!!!! Here's mine, nearly done.
Posted on: 11/14/2009 11:03 PM by Author "Mustang Fever"
in the forum "Sport Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9254391
RE: Shrike 40 from Plans
Joe: I saw RC Don's video of his Shrike. Unreal. I only used 7/8" wide chrome strips on the bottom, so bubbles weren't a big deal. Had to poke a few. I guess mine isn't as light as I thought, compared to others out there. Most of my balsa was quite soft, contest grade stuff, but the 3/32 was all fairly hard Midwest. The carbon spars probably added a little, too. Anyway, it beats the heck out of the ARF- they say 5.5 pounds for that. I saw a video of a kid who hand launches one of those sans gear, and he makes it look easy with a plain old 46. I did make the main gear mounts kind of bulletproof, which I'm sure added some weight. Not doing that would have meant a certain failure at the fields I fly from. I also made all three bulkheads out of 3/16 ply, and epoxied the fuse sides to them. If I hadn't done that, they would have all got busted, as I basically installed all the gear into the fuse and did all the pushrod routing before I stuck the left side on. I am real tickled that I didn't have to add any lead ballast to get the CG. That's a huge improvement over my last three Shrikes. I think getting the engine right up against the firewall probably made the most difference in that department. This has been a really fun build. The Shrike parts are very precise, and even tho I cut all my own from tracings of the carriers, everything fit really well. Can't wait to fly it. If the temp nudges up towards 60 someday next week, I'll go take a shot at it. [:D] I do have a clean copy of the plan, and nice templates of all the parts that I can photocopy. If anyone wants to build one this way, I can get it all to you most anywhere in the U.S. for $25 total, in a mailing tube. That just covers costs.
Posted on: 11/14/2009 8:51 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9254111
RE: Shrike 40 from Plans
Tried moving the 600 pack to between the rows of servos, and that brought the CG to about 1/8" forward of factory, and that I can live with. I'm really happy with the 72 oz weight. That's with the LG, so without it's about 66oz, or 4.1 pounds. The covering weighs just over 3 oz, if anyone's interested.
Posted on: 11/14/2009 7:05 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9253863
RE: Shrike 40 from Plans
Today's conditions would have made for the perfect maiden flight. 60 degrees, a mild wind out of the south, but I just don't want to rush the covering. Only the ailerons and elevator to do, yet. Weight is 72 oz as you see it, 4.5 pounds. A little lighter than I had hoped for. CG is about 1/8" aft of the factory point with the 600 NiCad shoved forward in the aft compartment. That battery weighs 3.3 oz, a 750 nickel metal would be about 1.9 oz. Hmmmmmm
Posted on: 11/14/2009 5:40 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9253671
RE: Top Flite 1/7 P-51 Build
That's my HO as well. I've been sticking with the recommended props on my newer OS engines, and have been having very good results. The AX series have be designed with different porting for more torque vs rpm, and better cooling fin design so they can turn a large, relatively coarse pitch prop at lower rpm. I think OS is doing this to promote longer engine life, lower fuel consumption, and less noise. (You won't believe how quiet that 120 is with a 15x10 at full throttle, or how long it will run on only 12 oz of fuel, which is the recommended max tank size.) These are the engines, props and fuel tank combinations I've experience with recently: 120AX 15x10 12oz 8300rpm (80 mph/11 pounds) 55AX 12x7 10oz 9800 rpm (65mph/6 pounds) 46AX 11x6 8 oz 11000 rpm est (62mph/5 pounds) All of them are very quiet, and will run for 12-15 minutes during a typical flight without getting dangerously low on fuel. Two of my 55s are hauling around an 18 pound B-25 like it's a toy.
Posted on: 11/4/2009 9:03 AM by Author "Mustang Fever"
in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=9227292
RE: Shrike 40 from Plans
Nice lookin bird, quikturn.
Posted on: 11/3/2009 3:42 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9225553
RE: Top Flite 1/7 P-51 Build
George: Only one I ever used was the 15x10.
Posted on: 11/2/2009 10:18 PM by Author "Mustang Fever"
in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=9223951
RE: Top Flite 1/7 P-51 Build
George: Mine tached about 8300 rpm on 10% at 1200 feet above sea level with the 15x10. OS says you can use a 16x10, but I'm sure the rpm will be down from what I got, meaning less airspeed. Question is how much. Tach it. I think as long as you can get an indicated 65 mph you'll be all right.
Posted on: 11/2/2009 9:55 PM by Author "Mustang Fever"
in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=9223900
RE: Top Flite 1/7 P-51 Build
Yeah, it fits really nicely. I used the Mac's muffler stuck out the side. the 15x10 APC prop is ideal. The engine runs forever on 12 oz of fuel (I used the slim 12 oz).
Posted on: 11/2/2009 8:03 PM by Author "Mustang Fever"
in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=9223635
RE: Shrike 40 from Plans
Ah, yes, the classic Shrike "wing board" setup. Making rib #1 out of thicker than spec material makes this much easier, as do having little chunks of 1/4x3/16 stick at the bottom of the rib tabs, so there's an easy place to put the pins. I had forgotten how easily and quickly these things go together, as long as one is careful with the fuse construction. Got the hatch made, too.
Posted on: 11/2/2009 7:57 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9223621
RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
SR: That's good news. Keep at it.
Posted on: 11/2/2009 10:26 AM by Author "Mustang Fever"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9222273
RE: Shrike 40 from Plans
Here's some shots of how the removable nose gear works, and how I had to modify the nose so as to make room for connecting/disconnecting the throttle ball link.
Posted on: 11/1/2009 5:11 PM by Author "Mustang Fever"
in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=9220688
| 
