Search found 27 matches

by PVDman
Mon Jun 29, 2015 5:11 am
Forum: Packrafting Gear
Topic: Signal mirrors
Replies: 1
Views: 2843

Re: Signal mirrors

There is an interesting discussion on emergency signal mirrors on:
http://www.survivalresources.com/Articl ... rrors.html
Don Mattox
by PVDman
Wed Dec 31, 2014 5:14 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

It is interesting to note that though inflatable rafts using rubberized fabric were not built until the mid-1800s, fabric capable of holding hydrogen had been in use since 1783 (balloon cloth). The first hot air balloons used paper for the envelope but in 1783 the Roberts brothers (Anne-Jean and Nic...
by PVDman
Sat Dec 06, 2014 7:12 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

Copper Canyon (Barranca del Cobre) - the Grand Canyon of Mexico: In 1963 John Cross (Cross River Tours) attempted to run the Rio Urique in the Barranca del Cobre from the Puente Umirá Bridge to the town of Urique in large river rafts. They didn’t get very far and had to be rescued with a lot of fanf...
by PVDman
Fri Oct 24, 2014 10:07 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

It might not be classed as a raft but in 1872 Clark S. Merriman patented an inflatable suit for life saving purposes (C.S. Merriman, “Improvement in Life-Preserving Dresses,” USP #128971; Published July 16, 1972). The suit was essentially a pair of rubber pants and a shirt cinched tight at the waist...
by PVDman
Fri Jul 11, 2014 1:01 pm
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

Interesting article: The History of Rubber Boats and how they Saved Rivers by Herm Hoops 2009. http://www.westwatercanyon.com/herm%20hoops/History-Rubber-Boats.pdf Amos Burg - mentioned in the article as rafting the Porcupine River, Canada in 1929 in a small (12#) rubber raft (p.99). Burg, along wit...
by PVDman
Mon Jul 07, 2014 1:17 pm
Forum: Packrafting Gear
Topic: Ultralight packrafting gear.
Replies: 2
Views: 3707

Re: Ultralight packrafting gear.

Another one: Bob, I'll second the comments about the Supai riding lower at 250+ lbs. While I paddled one with the former Mike plus gear at about 255 lbs, it does ride low. OK in flat flat flat water, but when the riffles get riffley, it doesn't have a calming effect. By contrast, the Flytepacker I a...
by PVDman
Sun Jul 06, 2014 2:51 am
Forum: Packrafting Gear
Topic: Ultralight packrafting gear.
Replies: 2
Views: 3707

Ultralight packrafting gear.

There is an interesting discussion on ultralight packrafting gear going on over at Grand_Canyon_Hikers@yahoogroups.com. Here is one of the more extensive discussions: Hi Larry, the best packraft for a Grand Canyon hiker is the Canyon Flatwater 2 by Supai Adventure Gear. The best paddle is the Olo Pa...
by PVDman
Mon May 26, 2014 6:49 am
Forum: Packrafting Gear
Topic: Signal mirrors
Replies: 1
Views: 2843

Signal mirrors

In researching the history of small inflatable rafts I accumulated some knowledge of the history of the US Military signal mirrors that I thought might be of interest. History of the Emergency Signal Mirror in the US Military There is a long history of using signal mirrors for communication (“optica...
by PVDman
Sun May 18, 2014 5:38 pm
Forum: General Discussion
Topic: Packrafting in Grand Canyon National Park
Replies: 1
Views: 1028

Packrafting in Grand Canyon National Park

The following has just been posted on the Grand Canyon Hikers Yahoo Group about packrafting on a Backcountry hiking permit " I have gotten many permits with packrafting included on my itinerary. The original rule was a 5 mile limit, but there has been a revision a little over a year ago by the super...
by PVDman
Sun May 18, 2014 6:23 am
Forum: General Discussion
Topic: Weight of WWII life rafts
Replies: 0
Views: 654

Weight of WWII life rafts

Does anyone know the weights of the 1-2-3-4 (Mark I-IV) yellow WWII life rafts?
by PVDman
Sun May 18, 2014 6:21 am
Forum: Packrafting Gear
Topic: Weight of WWII life rafts
Replies: 0
Views: 783

Weight of WWII life rafts

Does anyone know the weights of the WWII 1-2-3-4 (Mark I-IV) - man yellow life rafts?
by PVDman
Sun May 18, 2014 6:03 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

In August 1956 Neal Newby and Frank Moltzen used what looks to be 1-man yellow WWII life rafts to run the Colorado River through the Grand Canyon from Lee’s Ferry to Phantom Ranch (Big Water Little Boats, Tom Martin. pp. 136-138 [2012]; Huntington Digital Library V182/0087 [Don Davis photographer])....
by PVDman
Wed May 14, 2014 3:17 pm
Forum: Packrafting Gear
Topic: Cross Country Packrafting Boots
Replies: 5
Views: 3220

Re: Cross Country Packrafting Boots

You might look at Vietnam boots. Just don't get ones with punji plates in the soles.
by PVDman
Wed Apr 23, 2014 6:31 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

Air mattresses were used in the 50s and 60s as "packrafts" for crossing the Colorado River in the Grand Canyon. See huntington.org/cdm/singleitem/collection/p16003coll5/id/23934/rec/13 (Otis Marston River Collection: Huntington Digital Library V093/0209) for a 1961 picture of Jorgen Visbak in the Gr...
by PVDman
Fri Mar 28, 2014 5:12 am
Forum: Packrafting Gear
Topic: Vinyl packrafts
Replies: 3
Views: 1462

Re: Vinyl packrafts

Reposts from docthomas on Grand Canyon Hikers yahoo Group Docthomas04 on Grand_Canyon_Hikers@Yahoo.com Am amazed you worried at all about Makat.... and,other than getting out and doing walk around, there IS any other option. I've run EVERY GC rapid in pool toy boat 39 times .... and got soaked and c...
by PVDman
Mon Mar 17, 2014 4:50 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

As an old desert hiker I will say that a small raft weighs less than a gallon or two of water, which is quite acceptable under some circumstances.
by PVDman
Sun Mar 16, 2014 12:45 pm
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Re: Early History of Small Inflatable Rafts (with reference

Raven, It is interesting. It was not because the Halkett boat had problems. Antidotal evidence shows that they were very rugged and users were very happy with them. After WWII there were a lot of surplus rubber rafts around. One of the pioneers in the use of surplus rubber rafts was Georgie White on...
by PVDman
Sat Mar 15, 2014 9:40 am
Forum: General Discussion
Topic: Early History of Small Inflatable Rafts (with references)
Replies: 11
Views: 9321

Early History of Small Inflatable Rafts (with references)

Inflatable rafts have been around for thousands of years. The first inflatable rafts used cow or goat skins as the air-tight bladder. (e.g. http://www.kepu.net.cn/english/nationalitynw/sal/200311100063.html). Captain John C. Fremont used a rubber raft during his exploration of the American Rockies i...
by PVDman
Fri Mar 07, 2014 10:56 am
Forum: General Discussion
Topic: Grand Canyon Hikers and Backpackers Assoc.
Replies: 1
Views: 749

Re: Grand Canyon Hikers and Backpackers Assoc.

For a long time backpackers in the GC have used inflatables to cross the Colorado River. They have used everything from air mattresses to rafts. The first time I did it was with a vinyl raft in 1967. At least one person has died doing it. Recently there has been a increase in backpackers using "pack...
by PVDman
Fri Mar 07, 2014 6:22 am
Forum: General Discussion
Topic: Grand Canyon Hikers and Backpackers Assoc.
Replies: 1
Views: 749

Grand Canyon Hikers and Backpackers Assoc.

For those of you that are interested in packrafting in the GC you might want to watch/join the GCHBA (gchba.org) at Grand_Canyon_Hikers@Yahoogroups.com. They are reorganizing and will have a strong voice on what will be allowed in the Grand Canyon National Park.
by PVDman
Thu Feb 27, 2014 11:36 am
Forum: General Discussion
Topic: "packrafting" book
Replies: 0
Views: 774

"packrafting" book

No matter what your definition of what a "packrafting trip" is the book We Swam the Grand Canyon by Bill Beers is an entertaining read. The story is about the trip by two guys that "float" through the Grand Canyon in 1955 using waterproof bags as "water wings" for floatation. This might be considere...
by PVDman
Mon Feb 17, 2014 9:38 am
Forum: Packrafting Gear
Topic: Vinyl packrafts
Replies: 3
Views: 1462

Re: Vinyl packrafts

Jeremy, Very impressive! I doubt that $500 rafts would have done much better! I have also used the vinyl rafts to raft the Little Colorado River from Horse Canyon to the Big Colorado River in the Grand Canyon. That trip went over a number of travertine falls but nothing like what was shown in the mo...
by PVDman
Sat Feb 15, 2014 7:34 pm
Forum: General Discussion
Topic: History comment/question on Halkett's boat
Replies: 1
Views: 705

Re: History comment/question on Halkett's boat

An original Halkett boat from the 1848 Rae-Richardson Arctic Expedition is on display at the Stromness Museum, Orkney Islands, Scotland, UK.
by PVDman
Fri Feb 14, 2014 4:16 pm
Forum: General Discussion
Topic: History comment/question on Halkett's boat
Replies: 1
Views: 705

History comment/question on Halkett's boat

In the “packrafting is tradition” section of this website (as well as the Wikipedia entries - Halkett Boat & Inflatable Boat) it is stated that Lt. Peter Halkett used Macintosh waterproof fabric to build his “cloth boat”. The original Macintosh cloth was made by thinning natural rubber with a solven...
by PVDman
Wed Feb 12, 2014 3:41 pm
Forum: Packrafting Gear
Topic: Vinyl packrafts
Replies: 3
Views: 1462

Vinyl packrafts

I think that the vinyl “pool toy” (Wikipedia term) is very underrated as a packraft. In the Spring of 1975 five of us went through Copper Canyon (Urique River), Mexico from Humira Bridge to Urique in 8 days using vinyl “pool toys” (cost less than $15) with only one small puncture. The individual vin...
by PVDman
Thu Feb 06, 2014 11:21 am
Forum: Design & Do-It-Yourself
Topic: Ultra cheap packraft
Replies: 3
Views: 7658

Re: Ultra cheap packraft

Should have said that the trip was from the Umira Bridge to Urique - the wild part of the canyon!
by PVDman
Thu Feb 06, 2014 8:04 am
Forum: Design & Do-It-Yourself
Topic: Ultra cheap packraft
Replies: 3
Views: 7658

Re: Ultra cheap packraft

A really cheap packraft is the vinyl "pool toy" that you can buy from Target for about $10. A group of 5 of us traveled through the Barranca del Cobre for 8 days and about 80 miles using individual vinyl rafts with only one puncture! The rafts stayed inflated the whole trip. The vinyl rafts probably...