Zenith Aircraft Builders and Flyers

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Bob Jones
  • Big Lake, AK
  • United States
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Bob Jones's Page

Latest Activity

Bob Jones added 7 photos to the album 'Oct flying in Alaska'
October 13, 2009
Bob Jones added 5 photos to the album 'Fly In to Moose Camp'
September 15, 2009
2 photos by Bob Jones were featured
June 29, 2009
Bob Jones added an album
King Salmon Fishing photos in Alaska on Beluga Lake by Coal Creek outlet. Bob Jones, Paul Reinders, Ken Barnes
June 29, 2009
Bob Jones and Walt Cannon are now friends
May 2, 2009
Stephen,first off I have a fairly unique situation , since my home is on a lake , and I declared it an airport , it is L95in the alaska fAA log, I fly only on floats and ski's, I have a trailer mounted fuel tank that holds 250 gallons , which I fill…
April 2, 2009
Steve, anyone using a rotax should be made aware that the only fuel to use , except in emergency or limited use is Auto fuel, rotax cautions the use of 100LL and requires more frequent oil change if unavoidable, due to a very good reason, if a oil i…
April 2, 2009
Kostas, My approach speed apx. 45mph. No stick vibration at any speed even before VG's and I never use the flaperons. Obviously you have some other problem causing vibration. Bob
April 1, 2009

Profile Information

Aircraft Model
STOL CH 701
Project Status
Flying
Building From
Kit
Your website (about your aircraft...)
http://www.zenithair.com/stolch701/7-photo69-alaska.htm
Building Experience
Have already built an airplane
Flying Experience
Private Pilot
Profession / Employer / Background Info
auto, heavy eqpt. industrial pump and turbine mechanic

Flying In Alaska... On floats and skis

Big Lake is 65 miles toward Mount McKinley (Denali National Park) from Anchorage and Johnson Creek is about 80 miles closer to Mt. McKinley. 

My plane was built from a kit purchased from the Zenith Aircraft factory in Mexico, Missouri.
From start to finish it took me over 1,000 hours, but I spent a lot of extra time on the construction of skis, a custom baggage door, a survival gear box under dash, ejectable top hinged bowed doors, and more. I also installed larger wing tanks (which are now standard in the kit) and built both wings with one broken arm (and some additional help). This is a "EAA Centennial Homebuilt" and after a 1-1/2 hour FAA Inspection, it passed without a change. 
I'm flying every chance I get and now have more than 100 hours on the plane in 10 months. It's on Zenair 1150 floats in the summer and skis in the winter.
I custom-built the skis from plans with UHMW bottoms, reinforcements and heavier axles and rigging. 
Part of the construction time was from working with ROTAX Austria to get approval to slightly modify the tuned air intake, to fit on the 701, and I believe it was the first 100-hp. Rotax 912S to use it. 

The plane flies unbelievably well. The shortest take off on skis, with no wind, pilot only, was 25 feet. The slowest landing I've made on floats was 28 miles per hour, the shortest landing and take off (at gross) on floats, was 400 feet. The plane will land itself, skis, floats, wheels, it doesn't make any difference. 
Anyone wanting to know more can contact me. 
Bob Jones
Tel. (907) 892-7369
bobnpat @ mtaonline . net

Bob Jones's Photos

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Comment Wall (7 comments)

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At 8:58pm on October 12, 2009, Brody Godmaire said…
Hey Bob, do you think you can tell me where you got your skis for your 701 from? I've been looking and havn't found any, and if you built them from scratch would you be able to give me some design patterns if possible? thanks,

Brody
At 6:02pm on April 12, 2009, Alvin Rose said…
Hello Bob
I live in Newfoundland and we have lots of snow..Would appreciate
a copy of the plans for the skis for winter flying.
Alvin
At 4:47pm on April 2, 2009, Alvin Rose said…
Hi Bob
The angle of incidence on these floats is 4.5 degrees with floats level.
At 2:56pm on March 31, 2009, Bob Jones said…
ATTENTION BUILDERS ! I now have a new 701 kit, and will start the build in the fall, I ordered my new plane with the "old style" 5.5 gallon tanks to use as auxillaries, Zenith as always accommodated and remade the tanks. It would be to any builders advantage ,to do this . It gives you almost 2.5 hrs. of added fuel , and by design [ ie. against and parallel to the strut] almost on the CG. ,so no weight shift, the aux. tanks can feed the mains and therefore do not need fuel gages, sure beats gas cans for the long occasional flight ..BOB
At 9:36pm on March 22, 2009, Robert Pelland said…
Hello Bob,

Thank you for your prompt response. :o)

I have already purchased the VG's for the elevator, and I am very impressed with your water take off's not to mention the flight attitude of your 701 in the recent video on skies.

I also agree with your comment about the fences looking really cool, and was wondering if you happen to have any close up's of the fences, and the method you used to install the horizontal stabilizers on the tail. If you do, would you please send them to me off forum at the following address

robert.pelland@cgocable.ca

Thank you for the time you will take to address my concerns.

You have my very best regards
Bob
At 5:04pm on March 22, 2009, Bob Jones said…
Two things I would like to pass on to other builders, 1. put the key switch in the center of the dash , so you can operate it with your arm resting in the -y- stick. this helps with restart in flight , taxi on floats ,and ski's as nose can be held up with hand also on key to shut off when coming to the pier or shore ,while holding throttle with left hand. 2. DONT use a plastic fuel filter under the cowl, and wrap insulation adound the metal filter for fire protection , and vapor lock prevention ..VERY important...
At 8:07am on March 22, 2009, Robert Pelland said…
Bob,

Would you care to comment, or elaborate on the three protrusions that are seen on the top of each wing in your " Extreme water take off demo ". They look to me as being some type of fences ( for lack of a better word ) that are often seen on certified STOL retro, kits that are sold by compagnies like " Robertson STOL "

Are these " home made modifications " to your 701, or something that can be found elsewhere, and how effective have you found them to be. ?

regards

Robert
The 701 & 750 Scratch
 
 
 

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