Bill Henderson at the US Nationals
After emigrating to Canada in 1953, Bill Henderson resumed active particpation in contest
flying with entries in the 1970 and 1971 US Nationals at the
Glenview Naval Base in Chicago. Aeromodeller in October 1971 applauded the attendance
of fifteen Canadians from the Toronto Club: "Good show
from the Cannucks [sic] many of them, of course, ex-British Clubsters, including
Bill Henderson, making a comeback with Jetex models".
The National Free Flight Society Digest
of Oct.-Dec. 1971 carried a photo of Bill (see right), noting that "windy was the
word for Jetex day; it was so bad you had to hold the model behind you or on the
ground while waiting for lift".
Bill himself notes that the photo shows him "with my friend
Andy Demello from Toronto trying to hold Vindskreenviper 4, Mark 3
out of the high winds, before trying to launch into a
calm spell. This was a very frustrating contest because I had eight
misfires [due to poor fuse] and then had the model crash into the
unforgiving asphalt runway", after climbing up and over in a left-hand arc.
Jetex wick was a general problem at the 1971 Nats. NFFS Free Flight notes: "The fuel
was better than usual, and there were many split cases. But, the wick!" Bill adds:
"I was so upset with Jetex fuse that after the contest
I wrote to Sebel in the UK to complain about the very
poor fuse." He received a reply from Bert Judge himself, who noted that "we have had a certain
amount of difficulty with Jetex wick which has deteriorated in stock". Since Sebel was then in
the last months of Jetex manufacture, it seems likely that quality control standards had become
less rigorous.
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Bill Henderson with
Vindskreenviper 4, Mark 3 and Andy Demello, waiting for a calm spell at the Rocket event
at the 1971 US Nationals.
- NFFS Free Flight,
Oct.-Dec. 1971 (p. 20)
Click image below to view or download
large dimensioned 3-view of Vindskreenviper 4, Mark 3
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