dust Posted January 28, 2003 Share Posted January 28, 2003 Well, after my foray into cross country flying and going through way more fuel than planned (still had 1 hr of fuel on board (well ok, 50 minutes)) I'm thinking of making the strakes wetter, anyone done this? Smaller/no storage back or front and extending wet portion further into strake. Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted January 28, 2003 Share Posted January 28, 2003 I had the same thought, Mike. I moved the baggage area bulkhead inboard about 2 inches and gained about 4 gals on each side. Regards, John Slade Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted February 4, 2003 Author Share Posted February 4, 2003 so - inboard 4" and outboard?? Seems it will have small impact on cg? Maybe 8-10 gals a side Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted February 4, 2003 Share Posted February 4, 2003 Inboard increase puts the extra fuel closer to the c of g, so it should have less impact. Increasing outboard would put weight well behind the c of g. Thats why we close off a (usable) portion of the outboard end. 16 - 20 gals of extra fuel = approx 100lbs. You might find that full tanks is unuseable with rear pax because of aft c of g limitations. Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted February 4, 2003 Author Share Posted February 4, 2003 Well, I view this plane as a 2+2. Rarely will 4 be aboard and when they are, it won't be a michigan to arizona flight. I will NEVER fly out of CG. Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted February 4, 2003 Share Posted February 4, 2003 I will NEVER fly out of CG.Nor would anyone with any common sense. Not deliberately, anyway. Accidentally is the danger. Just be sure to consider and measure for EVERY eventuality of fuel content, flight attitude and loading when calculating weight and balance. e.g. it might be fine straight & level. When you go into a 20 degree climb, the c of G might go too far aft. Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted April 11, 2003 Author Share Posted April 11, 2003 OK so why not encrease the diameter( well what ever you call it) of the root of the gas tank?? Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted April 11, 2003 Share Posted April 11, 2003 What's the diameter of the root? Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted April 11, 2003 Author Share Posted April 11, 2003 Like, make it an inch bigger in all directions or just on top???? Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted April 11, 2003 Share Posted April 11, 2003 I'm not sure how you'd make the tank bigger "on top" without changing the airfoil. I moved the inside bulkheads inboard an inch or two, and the outside bulkhead outboard the same. Gained about 4 gallons / side. Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted April 11, 2003 Author Share Posted April 11, 2003 OK so you can't change the rear cg, but how about the forward cg? Change the airfoil from the wing to the fuselodge?? Move the forward of the foil forward, I am going to burn allot of fuel with full power to 15 or so thousand feet Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted April 11, 2003 Share Posted April 11, 2003 I still dont know exactly what you're suggesting, but my guess is that it isnt a sane idea. Go to bed, Mike, and stop sniffing the MEK. You'll feel better in the morning. Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted April 11, 2003 Author Share Posted April 11, 2003 he he he he he, no mek here john just in florida Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
marbleturtle Posted April 11, 2003 Share Posted April 11, 2003 Hey Mario Andretti... just cut back on the throttle! Quote This ain't rocket surgery! Link to comment Share on other sites More sharing options...
dust Posted April 17, 2003 Author Share Posted April 17, 2003 OK, i just did some rough math, all are estimates, except the number of tanks. 2 tanks 5" wider 25" long 6" deep ____ 1500 cubic inches/231 cubic inch per gallon = 6 gallons I get six gallons if i add an inboard bulkhead 5 inches in! Did I miss something or john, do you have a diferent size gallon? Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted April 17, 2003 Share Posted April 17, 2003 Dunno, Mike. I did my calculations a different way. I just counted how many times I had to go to the gas station to fill my 5 gallon container. It took 6. There wasnt any gasoline on the floor when I was done. (there was later, but that's a whole other story). Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted April 17, 2003 Author Share Posted April 17, 2003 OK, so that makes sense, the plans state that the tanks hold 30 gallons, you moved the inboard liner 2" and got 30 gallons, so if I add 3 more inches than you, i might get 3 gallons total. Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
John Slade Posted April 17, 2003 Share Posted April 17, 2003 The plans say 26, don't they? Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted April 17, 2003 Author Share Posted April 17, 2003 mine say 30, just checked again Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
dust Posted April 18, 2003 Author Share Posted April 18, 2003 my memory says 52 gallons total capicity, I don't know where that memory item came from?? I checked nat's site, couldn't find a fuel capacity stat, found one source, marc's site on performance graphs, his go to 52 gals. So, there Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
ken Posted March 8, 2005 Share Posted March 8, 2005 I have just installed a long range fuel tank in my back seat. N44CZ has a 172 gals tank plus 52 in the wings. This is for very long range. Quote Link to comment Share on other sites More sharing options...
Wayne Hicks Posted March 8, 2005 Share Posted March 8, 2005 Hello Ken, I assume your 172 gallon tank is not plumbed to the strake tanks? Else, since a large volume of the fuel is above the highest point of the vent system, fuel would be going overboard :-) Sounds like you're getting ready for some pond hopping! Quote Wayne Hicks Cozy IV Plans #678 http://www.ez.org/pages/waynehicks Link to comment Share on other sites More sharing options...
Waiter Posted March 8, 2005 Share Posted March 8, 2005 1,000 lbs of gas. Makes my 25 gallon rear seat tank look like a thermos bottle. I have a "T" in my fuel line just before it goes thru the firewall to the engine. This "T" is normally capped. When I install the tank, There is a small electric valve mounted on the tank. and I have a hose that connects to the "T". (Theres a "T" in the vent line also that connects to the auxs tank vent) I take off and burn on the left tank for 1/2 hour. I then switch and burn on the right tank for 1/2 hour. I then switch the main fuel OFF and energize the aux tank solenoid valve. I burn the aux tank until exhaustion. I turn off the solenoid valve and switch back to the left or right tank. When I have all the tanks filled, and am loaded up with baggage, I weigh in at about 1750 lbs. Even with my constants speed prop, I still take almost 4000 ft of runway to get this mass up to speed. I'll be very intrerested in knowing how much runway it takes to get off the ground! When I finish my current round of modification, I plane on making a larger seat tank, If I can get 50 gallons into it, I'll be very happy. Waiter Quote F16 performance on a Piper Cub budget LongEZ, 160hp, MT CS Prop, Downdraft cooling, Full retract visit: www.iflyez.com Link to comment Share on other sites More sharing options...
ken Posted March 10, 2005 Share Posted March 10, 2005 Just a few more pictures of my tank. I plan on using Moses Lake in Washington for preformance testing. With more than 13000 ft I should be in good shape. I will post some numbers when I have them. Ken Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.