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#1
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Tow hook for a Cesna 185?
Has anybody gotten an STC for a tow hook or have any experience putting a
tow hook on a 185? -- Gary Boggs 3650 Airport Dr. Hood River, Oregon, USA 97031-9613 |
#2
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Gary:
The FAA Advisory Circular on Aircraft Inspection and Repair (EA-AC 43.13-1A&2, my copy is old, this may have been since amended)has a section on the installation of towhooks. Chap 8 Glider aand Banner Tow-Hitch Installations (page 44-8 AC 43.13-2 chg 5 dtd 11/9/67) has a picture of a Schweizer hook on a 180/185 stinger. I am not aware of an STC (may well exist however) but with this drawing in the FAA's official publication, it make make a 337 easier ...well maybe possible. If I were doing the installation, I would flip the hook upside down per Jim Burch's 337 to insure better releases in tension of the glider gets high on tow. Pete Brown Gary Boggs wrote: Has anybody gotten an STC for a tow hook or have any experience putting a tow hook on a 185? -- Peter D. Brown http://home.gci.net/~pdb/ http://groups.yahoo.com/group/akmtnsoaring/ |
#3
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A local pilot has one on his C-180, but has thus far refused to consider
glider towing. It was used for banner towing in the past. It's possibly original, optional equipment. Frank Whiteley "REMOVE TO REPLY.pdb" "REMOVE TO wrote in message ... Gary: The FAA Advisory Circular on Aircraft Inspection and Repair (EA-AC 43.13-1A&2, my copy is old, this may have been since amended)has a section on the installation of towhooks. Chap 8 Glider aand Banner Tow-Hitch Installations (page 44-8 AC 43.13-2 chg 5 dtd 11/9/67) has a picture of a Schweizer hook on a 180/185 stinger. I am not aware of an STC (may well exist however) but with this drawing in the FAA's official publication, it make make a 337 easier ...well maybe possible. If I were doing the installation, I would flip the hook upside down per Jim Burch's 337 to insure better releases in tension of the glider gets high on tow. Pete Brown Gary Boggs wrote: Has anybody gotten an STC for a tow hook or have any experience putting a tow hook on a 185? -- Peter D. Brown http://home.gci.net/~pdb/ http://groups.yahoo.com/group/akmtnsoaring/ |
#4
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"Gary Boggs" wrote in message
... Has anybody gotten an STC for a tow hook or have any experience putting a tow hook on a 185? You might get some info by looking at the following page on the SSA web site for starters. http://www.ssa.org/ListGovtNewsDetail.asp?Action=&id=35 Duane |
#5
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An STC to install Tow Hook on Cessna 180 was donated to the SSA by
David Blanton Sr. the owner of Javelin Aircraft. The SSA sent me a drawing showing how to fabricate and install a bracket and tow hook on the tailwheel after I requested it by e-mail. Took about 10 days for the SSA to reply but there was no charge. Wag-Aero sells Schweizer hook, release and cable as a package cat. no. H-865-000 for $383.45. As best I can tell you will have to fabricate mounting bracket yourself out of 4130 0.10 plates. I am planning on doing all this on my 180 as soon as more pressing maintenance issues are finished. Investigated TOST hook and folks at TOST were very helpful sending drawings of their E-85 series hooks. Mounting the TOST hooks to a 180 tailwheel bracket seems a little more complicated than Schweizer but may be worth it for a very well-engineered release. Talking with the old-timers at the Miami Glider Club, the opinion is that a Schweizer hook installed "upside down" is dirt simple, easy to inspect and should last for 10,000 tows. Haven't actually done anything yet except research. Charles Pate at Cessna Engineering pointed me to Cessna Documents that tested towhooks on most of their aircraft (including 180 & 185). Towhook was an option on nose-wheel 100 series Cessnas but not on tailwheel. Likely to be some paperwork issues and will need a 337. It has been done many times. The Advisory Circular referenced below helps your IA build a case for field-approval. Will forward documents if you need - just don't want to violate any copyright/ownership issues. "REMOVE TO REPLY.pdb" "REMOVE TO wrote in message ... Gary: The FAA Advisory Circular on Aircraft Inspection and Repair (EA-AC 43.13-1A&2, my copy is old, this may have been since amended)has a section on the installation of towhooks. Chap 8 Glider aand Banner Tow-Hitch Installations (page 44-8 AC 43.13-2 chg 5 dtd 11/9/67) has a picture of a Schweizer hook on a 180/185 stinger. I am not aware of an STC (may well exist however) but with this drawing in the FAA's official publication, it make make a 337 easier ...well maybe possible. If I were doing the installation, I would flip the hook upside down per Jim Burch's 337 to insure better releases in tension of the glider gets high on tow. Pete Brown Gary Boggs wrote: Has anybody gotten an STC for a tow hook or have any experience putting a tow hook on a 185? -- Peter D. Brown http://home.gci.net/~pdb/ http://groups.yahoo.com/group/akmtnsoaring/ |
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