HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 09, 2010, 04:13 PM
Foam Fighter and a Bloody Mick
grenadapult's Avatar
Hermann, MO
Joined Jul 2008
393 Posts
Discussion
Blimp envelope PLANS??

Ok, I've been scratchbuilding RC foamy airplanes for over a year now, and been having a blast doing it. I've wanted an RC blimp since possibly before they were invented. For making foamies, I just download a pdf document of the airplane parts, and rint it out in real size. I understand that with the size of a blimp, that may not be entirely practical, but perhaps one half of one gore? If done right, RC blimp wannabe's like me, could have a generic envelope pattern, that could be scaled and tiled to suit just about anyone's needs. For that matter, it could be prescaled to several standard sizes, with weight capacities per size, then people know which one they need. Can anyone help with this?
grenadapult is offline Find More Posts by grenadapult
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 10, 2010, 01:37 AM
Micro Boat Forum Founder
boredom.is.me's Avatar
United States, GA, Buford
Joined Nov 2007
6,525 Posts
I've also wondered about this and am too curious.

I'll try a little something on sketchup.
boredom.is.me is offline Find More Posts by boredom.is.me
RCG Plus Member
Latest blog entry: RFD900 Case
Reply With Quote
Old Jan 10, 2010, 01:50 AM
Registered User
Joined Oct 2008
8 Posts
Haven't tried 'em myself but West Coast Blimps have been recommended by several folks on the forum and they have a blimp builder cd:

http://j.piri.home.mchsi.com/blimpcd.htm

and some free, but mostly just description:

http://j.piri.home.mchsi.com/freeplan.htm
Copasetic is offline Find More Posts by Copasetic
Reply With Quote
Old Jan 10, 2010, 04:07 PM
Foam Fighter and a Bloody Mick
grenadapult's Avatar
Hermann, MO
Joined Jul 2008
393 Posts
I have seen both of those before in my seemingly endless searches. LOL! A great resource, undoubtedly, but I'm lazy and cheap. I just want the ease of being able to print some stuff without thinking about it, for free. At least for my first airship. I want to do it the easy and proven way first, then perhaps get creative and go scratchbuilt/scratchdesigned. Good luck boredom. I'll start designing on paper, what I hope to fly in the spring. If it flies, the plans will be free and available for download.
grenadapult is offline Find More Posts by grenadapult
Reply With Quote
Old Jan 10, 2010, 05:23 PM
Micro Boat Forum Founder
boredom.is.me's Avatar
United States, GA, Buford
Joined Nov 2007
6,525 Posts
I made a "start" on it but a blimp is at least number 12th-14th on my list.
boredom.is.me is offline Find More Posts by boredom.is.me
RCG Plus Member
Latest blog entry: RFD900 Case
Reply With Quote
Old Jan 11, 2010, 06:51 AM
Pedro Garcia
Sao Carlos, Brazil
Joined Mar 2009
54 Posts
I can send you the plan for a 4m long blimp.
krazoide is offline Find More Posts by krazoide
Reply With Quote
Old Jan 11, 2010, 06:52 AM
Pedro Garcia
Sao Carlos, Brazil
Joined Mar 2009
54 Posts
Just send me a private message with your email and I'll send the autocad plan
krazoide is offline Find More Posts by krazoide
Reply With Quote
Old Jan 15, 2010, 11:47 AM
Foam Fighter and a Bloody Mick
grenadapult's Avatar
Hermann, MO
Joined Jul 2008
393 Posts
Quote:
Originally Posted by krazoide View Post
Just send me a private message with your email and I'll send the autocad plan
PM sent!
grenadapult is offline Find More Posts by grenadapult
Reply With Quote
Old Jan 17, 2010, 07:03 AM
Registered User
Joined Aug 2006
81 Posts
Pattern

Quote:
Originally Posted by grenadapult View Post
Ok, I've been scratchbuilding RC foamy airplanes for over a year now, and been having a blast doing it. I've wanted an RC blimp since possibly before they were invented. For making foamies, I just download a pdf document of the airplane parts, and rint it out in real size. I understand that with the size of a blimp, that may not be entirely practical, but perhaps one half of one gore? If done right, RC blimp wannabe's like me, could have a generic envelope pattern, that could be scaled and tiled to suit just about anyone's needs. For that matter, it could be prescaled to several standard sizes, with weight capacities per size, then people know which one they need. Can anyone help with this?
Hi all,
here's a possible envelope:

and here pattern for eight gores:


Find here a table for lengthwise coordinates and corresponding radii:

0,0000 0,0000
0,0019 0,0119
0,0075 0,0240
0,0168 0,0362
0,0298 0,0487
0,0464 0,0614
0,0666 0,0742
0,0902 0,0872
0,1173 0,1000
0,1476 0,1126
0,1811 0,1247
0,2176 0,1361
0,2570 0,1467
0,2991 0,1562
0,3438 0,1645
0,3908 0,1716
0,4401 0,1774
0,4914 0,1819
0,5444 0,1852
0,5991 0,1875
0,6551 0,1888
0,7123 0,1895
0,7705 0,1896
0,8293 0,1894
0,8886 0,1890
0,9481 0,1884
1,0076 0,1877
1,0669 0,1869
1,1258 0,1857
1,1839 0,1841
1,2411 0,1818
1,2971 0,1786
1,3518 0,1744
1,4049 0,1689
1,4561 0,1622
1,5054 0,1542
1,5525 0,1449
1,5971 0,1344
1,6393 0,1229
1,6786 0,1107
1,7152 0,0979
1,7486 0,0848
1,7789 0,0719
1,8060 0,0593
1,8296 0,0474
1,8498 0,0366
1,8664 0,0269
1,8794 0,0186
1,8887 0,0115
1,8944 0,0055
1,8962 0,0000

and here the coordinates for the pattern:
0,0000 0,0000
0,0121 0,0047
0,0254 0,0094
0,0407 0,0142
0,0587 0,0191
0,0796 0,0241
0,1036 0,0291
0,1305 0,0342
0,1605 0,0393
0,1933 0,0442
0,2289 0,0490
0,2671 0,0535
0,3079 0,0576
0,3511 0,0613
0,3966 0,0646
0,4441 0,0674
0,4937 0,0697
0,5452 0,0714
0,5984 0,0727
0,6531 0,0736
0,7092 0,0742
0,7664 0,0744
0,8245 0,0745
0,8833 0,0744
0,9426 0,0742
1,0021 0,0740
1,0617 0,0737
1,1210 0,0734
1,1798 0,0729
1,2380 0,0723
1,2952 0,0714
1,3513 0,0701
1,4062 0,0685
1,4595 0,0663
1,5112 0,0637
1,5611 0,0606
1,6091 0,0569
1,6550 0,0528
1,6987 0,0483
1,7399 0,0435
1,7786 0,0384
1,8145 0,0333
1,8475 0,0282
1,8773 0,0233
1,9038 0,0186
1,9267 0,0144
1,9459 0,0106
1,9614 0,0073
1,9730 0,0045
1,9812 0,0022
1,9871 0,0000

Here you can find pictures of the coresponding hull:
(sorry, text is in German only)
http://www.rc-network.de/forum/showt...508#post928508

for more (English) info ant the Excel sheet behind these tables please visit
http://tech.groups.yahoo.com/group/rc_airship_regatta/

see here IRIS in flight
Iris - Race 7 - Regatta March 2009 (2 min 17 sec)


and here a few videos on RC airships built after this design (but different sizes)
D11 - Race 5 - Regatta March 2009 (1 min 19 sec)

Luftschiff-Regatta 2008 2/11 (2 min 22 sec)

Luftschiff-Regatta 2008 3/11 (0 min 44 sec)

Luftschiff-Regatta 2008 4/11 (2 min 40 sec)

Luftschiff-Regatta 2008 7/11 (3 min 44 sec)



Best, Johannes
johannes.eissing is offline Find More Posts by johannes.eissing
Last edited by johannes.eissing; Jan 17, 2010 at 07:05 AM. Reason: Typos
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question Where to buy an indoor blimp envelope? Donny5 Blimps 5 Feb 19, 2008 11:51 AM
Discussion Wanted: A 4m indoor blimp envelope for sale? snoopaloop Blimps 10 Oct 11, 2006 04:26 AM
Discussion Blimp envelope ready! Dujo Blimps 29 May 25, 2006 03:05 PM
Custom Blimp Hull/Envelope mrbaseballny Blimps 2 Aug 14, 2005 01:27 PM