Thorp Air Command - T18.net http://t18.net/thorpforum/ |
|
C-FPVE http://t18.net/thorpforum/viewtopic.php?f=36&t=7216 |
Page 6 of 17 |
Author: | Rich Brazell [ Tue Apr 16, 2013 10:31 pm ] |
Post subject: | Re: C-FPVE |
Looking good Billy Ray ! ![]() ![]() After my project was done I loaded up all the scrap and FUBAR parts and took them to the recycle yard and got enough for a night out on the town ! ![]() RB ![]() |
Author: | Fraser MacPhee [ Wed Apr 17, 2013 8:47 am ] |
Post subject: | Re: C-FPVE |
Really enjoying this thread Thierry - keep up the great posts. "the EFIS Fairies or the DYNON Leprechaun"...... ![]() |
Author: | Pacer 20 [ Sat Apr 27, 2013 11:02 am ] |
Post subject: | Re: C-FPVE |
9. Fuel Tank Support- Refer to T-18 Newsletter# 12. It was necessary to provide a stress carry-through from the -528 tank support to the dash frame. This was accomplished by making an angle bracket from .063 inch extrusion, or bent up from sheet stock and attaching to the dash with 2 1/8" rivets and to the 528-2 with 2 rivets. 528-4 was extended all the way to the dash. This is now shown in the current revision of the drawings. There were some problems in applying the right brake when full right rudder was applied. Some builders have notched the fuel tank supports to clear the brake pedals. For this modification refer to T-18 Newsletter# 60. Where is possible to see some pictures about the notche on the bulkhead or the new bracket design. I take a look on the old news letters. Thanks. |
Author: | stug [ Sat Apr 27, 2013 9:53 pm ] |
Post subject: | Re: C-FPVE |
Re the fuel tank, the plans call for some packing material (cork or felt I think) between the tank and the supports, I can't see that in your photos. With the 3mm approx. of packing material it may help improve the fit I guess you could add a little extra packing as needed to improve the fit. My tank is similar to yours, it has flown for 500 +hours. I think that the main concern is can the tank is secured without placing undue stress on any one part or allowing any movement. A poor need may not be great but may not compromise safety. I suspect once the tank is in and filled it could settle into position somewhat so would need to be re checked for security at that stage I would have thought that you can probably get an adequate fit without making a new tank. I have seen some photos and a simple drawing of the notched tank supports on the forum. My understanding is that notching the tank supports is mostly of benefit for manoeuvring in tight situations, no benefit for landing or takeoff. Someone please correct me if I am wrong on this point! I was planning to leave the supports per plans ( no notches) unless there is an additional landing safety benefit in favour of this modification. |
Author: | Rich Brazell [ Sat Apr 27, 2013 10:08 pm ] |
Post subject: | Re: C-FPVE |
Do I see fuel stains on the lower fuel bung with the AN fitting ? The fuel tank attach fitting on the cradle (the part rubbing) was a little too long on my AC . I shaved off a bit on the top of the fitting to help the tank to fit in . Even with that my tank did not fit quite right . A small rubber mallet making a small "dent" eased the tank in . With regard to the gap between the tank and the top of the fus. skin , I did not have that problem . In fact it was a tight fit . In your case I might make an aluminum doubler (donut) to fit between the tank and the skin and use a gasket between the tank and the donut and then screw the whole thing together ? ![]() RB |
Author: | dickwolff [ Sun May 05, 2013 11:12 am ] |
Post subject: | Re: C-FPVE |
OMG, Thierry... you got one of those Thorps that make the rest of them look bad. There are a lot of them out there. My problems are absolutely trivial compared to yours. Fortunately, each of our airplanes are reasonably well matched to our talents/tools/and abilities. Soldier on! (I hope I don't sound too negative.) D PS - 1) the T18 tank in the plans looks nice. No PRC required. 2) If I were in your shoes, I would go with a capacitance probe.... you can linearize the fuel level. 3) If you are making a new tank, I strongly recommend you get a positive locking cap. Too many guys have burned when they might have walked away. BTW - love the idea of no fuel door. ie, bringing the fuel filler to the skin thus eliminating the scupper. A flush twist-lock cap would be a great addition. |
Author: | dickwolff [ Sun May 12, 2013 10:41 am ] |
Post subject: | Re: C-FPVE |
The volume of that tank probably won't be up to 29 USG. Might be a good idea to check and then decide whether or not to keep it. |
Author: | Rich Brazell [ Sun May 12, 2013 2:58 pm ] |
Post subject: | Re: C-FPVE |
Someone on the Forum made a larger main tank ? ![]() RB ![]() |
Page 6 of 17 | All times are UTC - 6 hours [ DST ] |
Powered by phpBB® Forum Software © phpBB Group https://www.phpbb.com/ |