function confirmModerate(url,num,pid){ url = url + '?Comments[do]=mod&Comments[pid]=' + pid + '&Comments[id]=' + num + '#Comments_' + num; if (confirm('Do you want to report this comment as inappropriate?')) location.href=url; return 0; } function validate_form(frm) { var value = ''; var errFlag = new Array(); _qfMsg = ''; value = frm.elements['Comments[name]'].value; if (value == '' && !errFlag['name']) { errFlag['name'] = true; _qfMsg = _qfMsg + '\n - Please enter your name'; } value = frm.elements['Comments[captcha]'].value; if (value == '' && !errFlag['captcha']) { errFlag['captcha'] = true; _qfMsg = _qfMsg + '\n - Please enter Security Code'; } value = frm.elements['Comments[mail]'].value; if (value == '' && !errFlag['mail']) { errFlag['mail'] = true; _qfMsg = _qfMsg + '\n - Please enter your e-mail'; } var regex = /^((\"[^\"\f\n\r\t\v\b]+\")|([\w\!\#\$\%\&'\*\+\-\~\/\^\`\|\{\}]+(\.[\w\!\#\$\%\&'\*\+\-\~\/\^\`\|\{\}]+)*))@((\[(((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9])))\])|(((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9])))|((([A-Za-z0-9\-])+\.)+[A-Za-z\-]+))$/; if (value != '' &&!regex.test(value) && !errFlag['mail']) { errFlag['mail'] = true; _qfMsg = _qfMsg + '\n - E-mail address format is invalid'; } value = frm.elements['Comments[text]'].value; if (value == '' && !errFlag['text']) { errFlag['text'] = true; _qfMsg = _qfMsg + '\n - Please enter your comment'; } if (value.length<50 && !errFlag['text']) { errFlag['text'] = true; _qfMsg = _qfMsg + '\n - Comment is too short (50 characters min.)'; } if (value.length>4000 && !errFlag['text']) { errFlag['text'] = true; _qfMsg = _qfMsg + '\n - Comment is too long (4000 characters max)'; } if (_qfMsg != '') { _qfMsg = 'Invalid information entered:' + _qfMsg + '\nPlease correct these fields.'; alert(_qfMsg); return false; } return true; } //]]>

Tailless airplane design

Article Abstract:

Aerodynamic controls for plain, swept-back, combined plain and swept-back, delta and swept-forward tailless airplanes are discussed. Views on static margin and weight distribution plus a graphic method for locating the 1/4-chord mean aerodynamic center are also included.

Author: Lennon, Andy

Publisher: Air Age, Inc.
Publication Name: Model Airplane News
Subject: Hobbies and crafts
ISSN: 0026-7295
Year: 1995

User Contributions:

Comment about this article or add new information about this topic:

Canards, tandem wings and three-surface design

Article Abstract:

Several factors must be considered when designing a model airplane to achieve optimum performance. These include the aspect ratio and planform separation, the size of the fore and aft wings and the use of the appropriate airfoil.

Author: Lennon, Andy

Publisher: Air Age, Inc.
Publication Name: Model Airplane News
Subject: Hobbies and crafts
ISSN: 0026-7295
Year: 1995

User Contributions:

Dec 9, 2009 @ 10:10 am

would this help me to design a tailless aircraft with canard design....specially a supersonic bomber plane

Comment about this article or add new information about this topic:

Subjects list: Design and construction, Airplanes, Model, Model aircraft

Similar abstracts:

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.