Hi, I wonder whether the lift over resistance coefficient diagram (aka polar diagram or lilienthal diagram) of a given airplane changes much with altitude. The rationale behind the question is, that I read somewhere, that commercial aircraft are flying in the so called "coffin corner", that is...

Hi All, I am leading a group who are moving and restoring the last and only full airframe of a Trident 1c reg G-ARPO. We are moving it from Teeside airport and relocating it at the North east aircraft museum where once restored will be open to the public. To bring you up to date with the...

Greetings everyone, My name is Imtiaz and I just wanted to quickly mention my company's upcoming software for the iPhone - AvCaddy EFB by Skytrex Systems. It is not yet released via the App Store but you may visit http://www.avcaddy.com to get an idea of what the software offers and if you're...

http://www.gpsworld.com/gnss-system/news/data-shows-disastrous-gps-jamming-fcc-approved-broadcaster-11029 Data Shows Disastrous GPS Jamming from FCC-Approved Broadcaster February 1, 2011 Representatives of the GPS industry presented to members of the Federal Communications Commission clear,...

Hello! I need to change a KX175 with a KX165, but I don´t have the pinout for the KX175. Need it to proceed.

Hi all, I'm currently doing a project on gliders designed within the last ten years and one of the crucial aspects is knowing the mean camber profile for various lift coefficient calculations. I was wondering whether a) Any modern gliders are using NACA type airfoils? b) Whether anyone knows...

Is there such a calculation/formula? How can you tell what propeller to use, how fast it should rotate, and how much weight it can push along the ground? Specifically... I would like to tell what sort and size of propeller rotating at what speed, in calm air to push 100 or 200 pounds on smooth...

I want to become a pilot.. I love everything about it the flying the travel the uniform... I have been researching and it seems the easy way...(no disrespect, its just big airlines seem to prefer a military background).. Would be to go through the military but i don’t want to go through the...

Does anyone know what color(s) and design was on the Arrow Air DC-8 that crashed in Gander, Newfoundland on December 12, 1985?

Hello lads, I just signed up to get familiar with the place. Nothing much to say for now :). Cheers!

Hey folks! First of all - I'm new here so please excuse me if I'm doing something wrong and do point me in the right direction :) So I just wanted to ask you if anyone knows what the plane on the picture is - I just fell in love with it!...

I received my private pilot's license in 2006 while I was in college and have logged only 100 hours. Money has been tight, even with a full-time teaching career. Any ideas as to how I could get back flying again while keeping the costs relatively low? Man, I picked an expensive hobby!

Hello, I'm George Davailus from Masten Space Systems. I need a Mode C Transponder for a 100,000 foot rocket flight. All transponders I have found only go to 62,000 ft or lower. Does anyone know of a device that would meet our requirement, or know of a way to modify an existing transponder? ...

ICAEO www.icaeo.com International Consultants of Aviation English Organization offers courses in Aviation English language communication skills for pilots and air traffic controllers, helping students to achieve and maintain a Level 4 according to the ICAO language requirements. ICAEO Aviation...

I am new to your forum so please forgive me if my question has been asked before. I am searching for records of a Budd RB-1 Conestoga. It was one of three prototypes built by Budd. The aircraft number was NC45354. I went to the FAA website but was unable to find any information. This planes US...

Hey guys, I recently got set up with this new aviation company called Airnovus that specializes in aviation business management software and merchant accounts for aviation businesses. I felt inclined and responsible to let people know because i feel that saving money for general aviation...

For purposes of a fiction novel I'm working on, I need to know if an old Grumman Goose could use fuel found at a marine refilling pier (mogas = auto gas, not diesel) instead of the usual avgas. It is only needed for one trip (not permanently) and hopefully not cause "major" damage to the P&W...

A petition to the FAA to eliminate the 3rd Class medical for GA flying. http://www.potomac-airfield.com/dot_petition.htm -- If you look at anything long enough, say just that wall in front of you -- it will come out of that wall. - Anton Chekhov

Good morning, I just wanted to drop everyone a note that Lake in the Hills Airport (3CK) has some of the lowest fuel prices in the midwest and the lowest in Northern Illinois. We're trying to get our name out there. We think we have a lot to offer at 3CK and want to let people know we're here. Fly...

Hello everyone, I am a physics teacher in a high school in NY in the US and I am looking for some guidance. At the end of each quarter students are required to complete a project based on what they have learned so far this year. One of the projects involves doing some simplified calculations...