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Marquardt MA-4

Posted By:
Mark Lightsey
Vintage Aircraft Association Member
#1 Posted: 6/1/2011 13:26:42

At Ed Marquardt's estate sale a couple of years ago, I wound up with the fuselage and wings for a little single seat biplane tagged as a MA-4.  I've searched the back issues of Sport Aviation looking for information on the plane and can only find limited references to it.  Apparently several were built in the 60's, but I can't find any pictures or other information.

If anyone has photos of a MA-4, or best of all a set of plans, it's a project I'd like to finish and put in the air.  The fuselage is on the gear.  It has an interesting outrigger style landing gear.  The wings and fuselage are well built, typical of Ed, but there are no tail surfaces or any of the control system. 

Anybody got anything on this?


Mark Lightsey



Bob Gish
Homebuilder or Craftsman
#2 Posted: 6/1/2011 18:28:16

You might have better luck re-posting on the website "biplane forum" It's an active site with some very savvy biplane folks.

Ron Wanttaja
#3 Posted: 6/1/2011 23:31:49

I see two of them listed on the FAA registry:  N3369G and N4521.  The first is registered in California, the other one in Missouri.    You can go to the FAA web site to get the owner's names and addresses.

Ron Wanttaja
Doug Shinn
IAC MemberHomebuilder or Craftsman
#4 Posted: 6/2/2011 12:22:12

Try here at the Charger users group- I sure someone there can help


Larry Morrison
Homebuilder or Craftsman
#5 Posted: 6/2/2011 22:05:42

Back in the 70's, there were quarterly magazines, titled (I think) "Sport Planes." Typical slick. color cover, but inside was all B&W on cheaper paper, almost like newsprint. Each issue featured various homebuilts. Anyway, there were pictures in one of those, but I couldn't tell you what issue without going through my archive of magazines, and they're packed away in a storage unit. Perhaps if you can find some of those old issues, they would help. Of course, if you can still find actual airplanes through the FAA registry, as previously mentioned, so much the better.

Larry Miller
#6 Posted: 6/2/2011 22:59:29 Modified: 6/2/2011 23:03:21

I'll try to post a photo of N4521, which I owned and flew between late '76 and '93.  The cockpit headrest and area just behind the headrest I believe is from a Starduster part. The last time I flew it was in 1980, as I recall. The left gear strut collapsed on landing roll out. The brake line had been secured to the strut with small Adel type clamps screwed into the strut. That weakened the strut, and it folded up as if it were on a hinge.  The good news was the tire kept the nose high enough to keep the prop from hitting the runway!  The bad news was the rear spar of the wing was cracked and had to be replaced.  I had some expert help getting that fixed, then had it recovered twice. ( The first try seemed much too loose to me.) 

      Before I got it flying again I thought a flying job  overseas was coming up for me, and I sold it for peanuts to a TWA pilot.  As far as I know , he still has it.  .    -Good luck, Larry M.


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